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Hu Y, Pan G, Zhao M, Yin H, Wang Y, Sun J, Yu Z, Bai C, Xue Y. Suitable fermentation temperature of forage sorghum silage increases greenhouse gas production: Exploring the relationship between temperature, microbial community, and gas production. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175325. [PMID: 39117229 DOI: 10.1016/j.scitotenv.2024.175325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/13/2024] [Accepted: 08/04/2024] [Indexed: 08/10/2024]
Abstract
Silage is an excellent method of feed preservation; however, carbon dioxide, methane and nitrous oxide produced during fermentation are significant sources of agricultural greenhouse gases. Therefore, determining a specific production method is crucial for reducing global warming. The effects of four temperatures (10 °C, 20 °C, 30 °C, and 40 °C) on silage quality, greenhouse gas yield and microbial community composition of forage sorghum were investigated. At 20 °C and 30 °C, the silage has a lower pH value and a higher lactic acid content, resulting in higher silage quality and higher total gas production. In the first five days of ensiling, there was a significant increase in the production of carbon dioxide, methane, and nitrous oxide. After that, the output remained relatively stable, and their production at 20 °C and 30 °C was significantly higher than that at 10 °C and 40 °C. Firmicutes and Proteobacteria were the predominant silage microorganisms at the phylum level. Under the treatment of 20 °C, 30 °C, and 40 °C, Lactobacillus had already dominated on the second day of silage. However, low temperatures under 10 °C slowed down the microbial community succession, allowing, bad microorganisms such as Chryseobacterium, Pantoea and Pseudomonas dominate the fermentation, in the early stage of ensiling, which also resulted in the highest bacterial network complexity. According to random forest and structural equation model analysis, the production of carbon dioxide, methane and nitrous oxide is mainly affected by microorganisms such as Lactobacillus, Klebsiella and Enterobacter, and temperature influences the activity of these microorganisms to mediate gas production in silage. This study helps reveal the relationship between temperature, microbial community and greenhouse gas production during silage fermentation, providing a reference for clean silage fermentation.
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Affiliation(s)
- Yifei Hu
- College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China
| | - Gang Pan
- College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China
| | - Meirong Zhao
- College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China
| | - Hang Yin
- College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China
| | - Yibo Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China
| | - Juanjuan Sun
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot 010010, China
| | - Zhu Yu
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Chunsheng Bai
- College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China.
| | - Yanlin Xue
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot 010031, China.
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Qiu C, Yang K, Diao X, Zhang W, Lv R, He L. Effects of kinds of additives on fermentation quality, nutrient content, aerobic stability, and microbial community of the mixed silage of king grass and rice straw. Front Microbiol 2024; 15:1420022. [PMID: 38933036 PMCID: PMC11199393 DOI: 10.3389/fmicb.2024.1420022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
To investigate the effects of kinds of additives on silage quality, the mixture of king grass and rice straw was ensiled with addition of sucrose, citric acid and malic acid at the levels of 0, 1 and 2%, being blank control (CK), citric acid groups (CA1, CA2), malic acid groups (MA1, MA2), citric acid + malic acid groups (CM1, CM2), sucrose groups (SU1, SU2), mainly focusing on fermentation quality, nutrient content, aerobic stability and microbial community of the silages. The results showed that the addition of sucrose decreased (p < 0.05) pH and increased the content of water soluble carbohydrate (p < 0.05). The sucrose groups and mixed acid groups also had a lower (p < 0.01) neutral detergent fiber content. The addition of citric acid and the mixed acid increased (p < 0.01) the aerobic stability of the silage, reduced the abundance of Acinetobacter, and the addition of citric acid also increased the abundance of Lactiplantibacillus. It is inferred that citric acid and malic acid could influence fermentation quality by inhibiting harmful bacteria and improve aerobic stability, while sucrose influenced fermentation quality by by promoting the generation of lactic acid. It is suggested that the application of citric acid, malic acid and sucrose would achieve an improvement effect on fermentation quality of the mixed silage.
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Affiliation(s)
- Chenchen Qiu
- Sanya Institute of China Agricultural University, Sanya, Hainan, China
- State Key Laboratory of Animal Nutrition and Feeding, SKLANF, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Kaili Yang
- Sanya Institute of China Agricultural University, Sanya, Hainan, China
| | - Xiaogao Diao
- Sanya Institute of China Agricultural University, Sanya, Hainan, China
- State Key Laboratory of Animal Nutrition and Feeding, SKLANF, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wei Zhang
- Sanya Institute of China Agricultural University, Sanya, Hainan, China
- State Key Laboratory of Animal Nutrition and Feeding, SKLANF, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Renlong Lv
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China
| | - Liwen He
- Sanya Institute of China Agricultural University, Sanya, Hainan, China
- State Key Laboratory of Animal Nutrition and Feeding, SKLANF, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Yu Q, Xu J, Li M, Xi Y, Sun H, Xie Y, Cheng Q, Li P, Chen C, Yang F, Zheng Y. Synergistic effects of ferulic acid esterase-producing lactic acid bacteria, cellulase and xylanase on the fermentation characteristics, fibre and nitrogen components and microbial community structure of Broussonetia papyrifera during ensiling. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:3543-3558. [PMID: 38146051 DOI: 10.1002/jsfa.13239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND The high fibre content of whole plants of Broussonetia papyrifera limits its efficient utilization. Ferulic acid esterase (FAE), in combination with xylanase, can effectively cleave the lignin-carbohydrate complex, promoting the function of cellulase. However, little is known about the impact of these additives on silage. To effectively utilize natural woody plant resources, FAE-producing Lactiplantibacillus plantarum RO395, xylanase (XY) and cellulase (CE) were used to investigate the dynamic fermentation characteristics, fibre and nitrogen components and microbial community structure during B. papyrifera ensiling. RESULTS Broussonetia papyrifera was either not treated (CK) or treated with FAE-producing lactic acid bacteria (LP), CE, XY, LP + CE, LP + XY or LP + CE + XY for 3, 7, 15, 30 or 60 days, respectively. In comparison with those in the CK treatment, the L. plantarum and enzyme treatments (LP + CE, LP + XY and LP + XY + CE), especially the LP + XY + CE treatment, significantly increased the lactic acid concentration and decreased the pH and the contents of acid detergent insoluble protein and NH3 -N (P < 0.05). Enzyme addition improved the degradation efficiency of lignocellulose, and a synergistic effect was observed after enzyme treatment in combination with LP; in addition, the lowest acid detergent fibre, neutral detergent fibre, hemicellulose and cellulose contents were detected after the LP + CE + XY treatment (P < 0.05). Moreover, CE, XY and LP additions significantly improved the microbial community structure, increased the relative abundance of Lactiplantibacillus and Firmicutes, and effectively inhibited undesirable bacterial (Enterobacter) growth during ensiling. CONCLUSION FAE-producing L. plantarum and the two tested enzymes exhibited synergistic effects on improving the quality of silage, which indicates that this combination can serve as an efficient method for improved B. papyrifera silage utilization. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Qiang Yu
- College of Animal Science, Guizhou University, Guizhou, China
| | - Jinyi Xu
- College of Animal Science, Guizhou University, Guizhou, China
| | - Mengxin Li
- College of Animal Science, Guizhou University, Guizhou, China
| | - Yulong Xi
- College of Animal Science, Guizhou University, Guizhou, China
| | - Hong Sun
- College of Animal Science, Guizhou University, Guizhou, China
| | - Yixiao Xie
- College of Animal Science, Guizhou University, Guizhou, China
| | - Qiming Cheng
- College of Animal Science, Guizhou University, Guizhou, China
| | - Ping Li
- College of Animal Science, Guizhou University, Guizhou, China
| | - Chao Chen
- College of Animal Science, Guizhou University, Guizhou, China
| | - Fuyu Yang
- College of Animal Science, Guizhou University, Guizhou, China
| | - Yulong Zheng
- College of Animal Science, Guizhou University, Guizhou, China
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Zhao L, Maimaitiyiming R, Hong J, Wang L, Mu Y, Liu B, Zhang H, Chen K, Aihaiti A. Optimization of tomato ( Solanum lycopersicum L.) juice fermentation process and analysis of its metabolites during fermentation. Front Nutr 2024; 11:1344117. [PMID: 38362104 PMCID: PMC10868405 DOI: 10.3389/fnut.2024.1344117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/09/2024] [Indexed: 02/17/2024] Open
Abstract
Tomato (Solanum lycopersicum L.) is a nutritious fruit and vegetable. Fermentation can be used to enhance their nutritional value. In this study, the tomato juice was co-fermented with multistrains, optimized by uniform experimental design and response surface methodology. Superoxide dismutase activity reached 496.67 U/g and lycopene content reached 77.12μg/g when P. pentosaceus (53.79%), L. casei (13.17%), L. plantarum (19.87%), L. fermentum (13.17%). To gain insight into the dynamics of metabolites during the tomato fermentation juice process multivariate statistical analysis was performed using the UHPLC-QE-MS/MS method. The main metabolites are peptides, amino acids carbohydrates, organic acids, and phospholipids. Carbohydrates were fully retained at the end of fermentation.The content of galactitol increased from the initial 5.389 to 6.607 while the content of cytarabine decreased by 29% and uridine by 44%. Meanwhile, phospholipids (PS, PE, PC, PG, PI) were all retained by more than 70%. Terpenoids (16-deacetylgairin, (+)-Royleanone, artemisinin) were increased to varying degrees, which gives them good nutritional value and biological activity. Organic acids (malic and citric) were reduced and lactic acid content was increased, changing its original flavor and making it more palatable to the general population. The research results have demonstrated the benefits of lactic acid bacteria fermentation on tomato juice, providing a theoretical basis and reference for the fermentation metabolism process of tomato juice.
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Affiliation(s)
- Lei Zhao
- School of Life Science and Technology, Xinjiang University, Urumqi, China
| | | | - Jingyang Hong
- School of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Liang Wang
- School of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Ying Mu
- School of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Bingze Liu
- School of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Huimin Zhang
- School of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Keping Chen
- Xinjiang Huize Food Limited Liability Company, Urumqi, China
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Wei X, Sun X, Zhang H, Zhong Q, Lu G. The influence of low-temperature resistant lactic acid bacteria on the enhancement of quality and the microbial community in winter Jerusalem Artichoke ( Helianthus tuberosus L.) silage on the Qinghai-Tibet Plateau. Front Microbiol 2024; 15:1297220. [PMID: 38348187 PMCID: PMC10860748 DOI: 10.3389/fmicb.2024.1297220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 01/11/2024] [Indexed: 02/15/2024] Open
Abstract
Jerusalem Artichoke (Helianthus tuberosus L.), an emerging "food and fodder" economic crop on the Qinghai-Tibet Plateau. To tackle problems such as incomplete fermentation and nutrient loss occurring during the low-temperature ensilage of Jerusalem Artichokes in the plateau's winter, this study inoculated two strains of low-temperature resistant lactic acid bacteria, Lactobacillus plantarum (GN02) and Lactobacillus brevis (XN25), along with their mixed components, into Jerusalem Artichoke silage material. We investigated how low-temperature resistant lactic acid bacteria enhance the quality of low-temperature silage fermentation for Jerusalem Artichokes and clarify its mutual feedback effect with microorganisms. Results indicated that inoculating low-temperature resistant lactic acid bacteria significantly reduces the potential of hydrogen and water-soluble carbohydrates content of silage, while increasing lactic acid and acetic acid levels, reducing propionic acid, and preserving additional dry matter. Inoculating the L. plantarum group during fermentation lowers pH and propionic acid levels, increases lactic acid content, and maintains a dry matter content similar to the original material. Bacterial community diversity exhibited more pronounced changes than fungal diversity, with inoculation having a minor effect on fungal community diversity. Within the bacteria, Lactobacillus remains consistently abundant (>85%) in the inoculated L. plantarum group. At the fungal phylum and genus levels, no significant changes were observed following fermentation, and dominant fungal genera in all groups did not differ significantly from those in the raw material. L. plantarum exhibited a positive correlation with lactic acid and negative correlations with pH and propionic acid. In summary, the inoculation of L. plantarum GN02 facilitated the fermentation process, preserved an acidic silage environment, and ensured high fermentation quality; it is a suitable inoculant for low-temperature silage in the Qinghai-Tibet Plateau.
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Affiliation(s)
- Xiaoqiang Wei
- Qinghai University, Xining, China
- Qinghai Provincial Key Laboratory of Vegetable Genetics and Physiology, Xining, China
- Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, China
| | - Xuemei Sun
- Qinghai University, Xining, China
- Qinghai Provincial Key Laboratory of Vegetable Genetics and Physiology, Xining, China
- Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, China
| | - Haiwang Zhang
- Qinghai University, Xining, China
- Qinghai Provincial Key Laboratory of Vegetable Genetics and Physiology, Xining, China
- Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, China
| | - Qiwen Zhong
- Qinghai University, Xining, China
- Qinghai Provincial Key Laboratory of Vegetable Genetics and Physiology, Xining, China
- Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, China
| | - Guangxin Lu
- Qinghai University, Xining, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, China
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Du Z, Yamasaki S, Oya T, Cai Y. Cellulase-lactic acid bacteria synergy action regulates silage fermentation of woody plant. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:125. [PMID: 37542284 PMCID: PMC10403842 DOI: 10.1186/s13068-023-02368-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 07/19/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND Feed shortage is an important factor limiting livestock production in the world. To effectively utilize natural woody plant resources, we used wilting and microbial additives to prepare an anaerobic fermentation feed of mulberry, and used PacBio single-molecule real-time (SMRT) sequencing technology to analyse the "enzyme-bacteria synergy" and fermentation mechanism. RESULTS The fresh branches and leaves of mulberry have high levels of moisture and nutrients, and also contain a diverse range of epiphytic microorganisms. After ensiling, the microbial diversity decreased markedly, and the dominant bacteria rapidly shifted from Gram-negative Proteobacteria to Gram-positive Firmicutes. Lactic acid bacteria (LAB) emerged as the dominant microbial population, resulting in increased in the proportion of the carbohydrate metabolism and decreased in the proportion of the amino acid and "global and overview map" (GOM) metabolism categories. The combination of cellulase and LAB exhibited a synergistic effect, through which cellulases such as glycanase, pectinase, and carboxymethyl cellulase decomposed cellulose and hemicellulose into sugars. LAB converted these sugars into lactic acid through the glycolytic pathway, thereby improving the microbial community structure, metabolism and fermentation quality of mulberry silage. The GOM, carbohydrate metabolism, and amino acid metabolism were the main microbial metabolic categories during ensiling. The presence of LAB had an important effect on the microbial community and metabolic pathways during silage fermentation. A "co-occurrence microbial network" formed with LAB, effectively inhibiting the growth of harmful microorganisms, and dominating the anaerobic fermentation process. CONCLUSIONS In summary, PacBio SMRT was used to accurately analyse the microbial network information and regulatory mechanism of anaerobic fermentation, which provided a scientific basis for the study of woody silage fermentation theory. This study reveals for the first time the main principle of the enzyme-bacteria synergy in a woody silage fermentation system, which provides technical support for the development and utilization of woody feed resources, and achieves sustainable livestock production.
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Affiliation(s)
- Zhumei Du
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, People's Republic of China
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Seishi Yamasaki
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Tetsuji Oya
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Yimin Cai
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan.
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Bao J, Ge G, Wang Z, Xiao Y, Zhao M, Sun L, Wang Y, Zhang J, Jia Y, Du S. Effect of isolated lactic acid bacteria on the quality and bacterial diversity of native grass silage. FRONTIERS IN PLANT SCIENCE 2023; 14:1160369. [PMID: 37484462 PMCID: PMC10358727 DOI: 10.3389/fpls.2023.1160369] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/02/2023] [Indexed: 07/25/2023]
Abstract
Objective The objective of this study was to isolate lactic acid bacteria (LAB) from native grasses and naturally fermented silages, determine their identity, and assess their effects on silage quality and bacterial communities of the native grasses of three steppe types fermented for 60 days. Methods Among the 58 isolated LAB strains, Limosilactobacillus fermentum (BL1) and Latilactobacillus graminis (BL5) were identified using 16S rRNA sequences. Both strains showed normal growth at 15- 45°C temperature, 3-6.5% NaCl concentration, and pH 4-9. Two isolated LAB strains (labeled L1 and L5) and two commercial additives (Lactiplantibacillus plantarum and Lentilactobacillus buchneri; designated as LP and LB, respectively) were added individually to native grasses of three steppe types (meadow steppe, MS; typical steppe, TS; desert steppe, DS), and measured after 60 d of fermentation. The fresh material (FM) of different steppe types was treated with LAB (1 × 105 colony forming units/g fresh weight) or distilled water (control treatment [CK]). Results Compared with CK, the LAB treatment showed favorable effects on all three steppe types, i.e., reduced pH and increased water-soluble carbohydrate content, by modulating the microbiota. The lowest pH was found in the L5 treatment of three steppe types, at the same time, the markedly (p < 0.05) elevated acetic acid (AA) concentration was detected in the L1 and LB treatment. The composition of bacterial community in native grass silage shifted from Pantoea agglomerans and Rosenbergiella nectarea to Lentilactobacillus buchneri at the species level. The abundance of Lentilactobacillus buchneri and Lactiplantibacillus plantarum increased significantly in L1, L5, LP, and LB treatments, respectively, compared with CK (p < 0.05). Conclusion In summary, the addition of LAB led to the shifted of microbiota and modified the quality of silage, and L. fermentum and L. graminis improved the performance of native grass silage.
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Affiliation(s)
- Jian Bao
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Gentu Ge
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Zhijun Wang
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Yanzi Xiao
- College of Agriculture and Forestry, Hulunbuir University, Hulunbuir, China
| | - Muqier Zhao
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Lin Sun
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Grassland Research Institute, Hohhot, China
| | - Yu Wang
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Jiawei Zhang
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Yushan Jia
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Shuai Du
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
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Ma J, Fan X, Ma Z, Huang X, Tang M, Yin F, Zhao Z, Gan S. Silage additives improve fermentation quality, aerobic stability and rumen degradation in mixed silage composed of amaranth and corn straw. FRONTIERS IN PLANT SCIENCE 2023; 14:1189747. [PMID: 37426969 PMCID: PMC10325724 DOI: 10.3389/fpls.2023.1189747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/05/2023] [Indexed: 07/11/2023]
Abstract
The objective of this research was to investigate effects of different additives on the fermentation quality, aerobic stability and rumen degradation of mixed silage composed of amaranth and corn straw. The mixture ratio of amaranth to corn straw was 78%: 22%. Three additives were selected in this study and five groups were as follows: control group (CON, without additive), lactic acid bacteria group (LAB, 5 mg/kg, Lactobacillus plantarum ≥ 1.6×1010 CFU/g and L. buchneri ≥ 4.0×109 CFU/g), glucose group (GLU, 30 g/kg), cellulase group (CEL, 2 mg/kg) and lactic acid bacteria, glucose and cellulase group (LGC, added at the same levels as in individual group). The period of ensiling was 60 days. Fermentation quality, chemical composition and aerobic stability of mixed silage were analyzed. Four cows with permanent ruminal fistula were selected as experimental animals. Nylon bag technique was used to study rumen degradation characteristic of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) of mixed silage. Compared with CON group, the addition of different silage additives could improve mixed silage quality of amaranth and corn straw to some extent. Combining three additives significantly increased (P < 0.05) the DM, CP and lactic acid contents, whereas decreased (P < 0.05) the ADF and NDF contents as well as pH and ammonia nitrogen/total nitrogen. Moreover, the aerobic stability and rumen degradation of DM, CP and NDF were significantly improved (P < 0.05) in LGC group when compared to other groups. In conclusion, the combined addition of lactic acid bacteria, glucose and cellulase increased DM, CP and lactic acid contents as well as lactic acid bacteria count, decreased NDF and ADF contents and aerobic bacteria and mold counts, improved aerobic stability and rumen degradation of amaranth and corn straw mixed silage.
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Affiliation(s)
- Jian Ma
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Xue Fan
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- College of Animal Science, Xinjiang Agricultural University, Urumchi, China
| | - Zhuang Ma
- College of Animal Science, Xinjiang Agricultural University, Urumchi, China
| | - Xiuwen Huang
- College of Animal Science, Xinjiang Agricultural University, Urumchi, China
| | - Minghuan Tang
- College of Animal Science, Xinjiang Agricultural University, Urumchi, China
| | - Fuquan Yin
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Zhihui Zhao
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Shangquan Gan
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
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Sun L, Xue Y, Xiao Y, Te R, Wu X, Na N, Wu N, Qili M, Zhao Y, Cai Y. Community Synergy of Lactic Acid Bacteria and Cleaner Fermentation of Oat Silage Prepared with a Multispecies Microbial Inoculant. Microbiol Spectr 2023; 11:e0070523. [PMID: 37166312 PMCID: PMC10269639 DOI: 10.1128/spectrum.00705-23] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/21/2023] [Indexed: 05/12/2023] Open
Abstract
To investigate community synergy of lactic acid bacteria (LAB) and cleaner fermentation of oat silage, oat silages were prepared with or without (control) commercial LAB inoculants LI1 (containing Lactiplantibacillus plantarum, Lentilactobacillus buchneri, Lacticaseibacillus paracasei, and Pediococcus acidilactici) and LI2 (containing Lactiplantibacillus plantarum and Lentilactobacillus buchneri). The microbial community, LAB synergy, and cleaner fermentation were analyzed at 1, 3, 6, 15, 35, and 90 days of ensiling. The LAB inoculant improved fermentation quality, with significantly (P < 0.05) lower pH, ammonia nitrogen content, and gas production and higher lactic acid and acetic acid contents than those of the control. Enterobacteriaceae was the main bacterial community in early stage of fermentation, which utilizes sugar to produce CO2 gas, causing dry matter (DM) and energy loss. As fermentation progressed, the microbial diversity decreased, and the microbial community shifted from Gram-negative to Gram-positive bacteria. The inoculation of multispecies LAB displayed community synergy; Pediococcus acidilactici formed a dominant community in the early stage of fermentation, which produced an acid and anaerobic environment for the subsequent growth of Lentilactobacillus and Lacticaseibacillus species, thus forming a LAB-dominated microbial community. The predicted functional profile indicated that the silage inoculated with LI1 enhanced the carbohydrate metabolism pathway but inhibited the amino acid metabolism pathway, which played a role in promoting faster lactic acid production, reducing the decomposition of protein to ammonia nitrogen, and improving the fermentation quality of silage. Therefore, oat silage can be processed to high-quality and cleaner fermented feed by using an LAB inoculant, and LI1 showed better efficiency than LI2. IMPORTANCE Oat natural silage is rich in Enterobacteriaceae, increasing gas production and fermentation loss. Lactic acid bacteria interact synergistically to form a dominant community during ensiling. Pediococci grow vigorously in the early stage of fermentation and create an anaerobic environment. Lactobacilli inhibit the harmful microorganisms and result in cleaner fermentation of oat silage.
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Affiliation(s)
- Lin Sun
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, People’s Republic of China
| | - Yanlin Xue
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, People’s Republic of China
| | - Yanzi Xiao
- College of Agriculture and Forestry, Hulunbuir University, Hulunber, Inner Mongolia, People’s Republic of China
| | - Rigele Te
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, People’s Republic of China
| | - Xiaoguang Wu
- Inner Mongolia Autonomous Region Land Surveying and Planning Institute, Hohhot, Inner Mongolia, People’s Republic of China
| | - Na Na
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, People’s Republic of China
| | - Nier Wu
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, People’s Republic of China
| | - Moge Qili
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, People’s Republic of China
| | - Yi Zhao
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, People’s Republic of China
| | - Yimin Cai
- Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki, Japan
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10
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Ahmed MG, Al-Sagheer AA, El-Waziry AM, El-Zarkouny SZ, Elwakeel EA. Ensiling Characteristics, In Vitro Rumen Fermentation Patterns, Feed Degradability, and Methane and Ammonia Production of Berseem ( Trifolium alexandrinum L.) Co-Ensiled with Artichoke Bracts ( Cynara cardunculus L.). Animals (Basel) 2023; 13:ani13091543. [PMID: 37174580 PMCID: PMC10177127 DOI: 10.3390/ani13091543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/30/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
This study investigated the effect of co-ensiling increasing levels of artichoke bracts (Cynara cardunculus L.) with berseem (Trifolium alexandrinum L.) (100:0, 75:25, 50:50, 25:75, and 0:100, respectively) on silage quality after 0, 30, 60, and 120 days. Moreover, the in vitro rumen fermentation characteristics and methane (CH4) and ammonia (NH3-N) production were evaluated using a buffalo inoculum source. The results showed that pH of the silage and the concentration of acetic, propionic, butyric acid, and NH3-N significantly decreased (L; p < 0.01) with the increasing amounts of artichoke bracts in the mixture. At 30 and 60 days of ensiling, the highest lactic acid concentration was observed at intermediate proportions of artichoke bracts (p < 0.01). Cumulative gas production was higher in artichoke bracts than in the berseem silage. After 24 h of incubation, the highest value (p < 0.05) of truly dry matter, organic matter, natural detergent fiber degradability, and NH3-N concentration was recorded with 500 g/kg of forage mixtures. As the artichoke bract concentration increased, the partitioning factor and ruminal pH declined linearly (p ≤ 0.05). No significant differences were observed for total volatile fatty acids and volatile fatty acids molar proportions. In summary, co-ensiling artichoke bracts with berseem at a ratio of 1:1 might be a promising and easy method for the production of high-quality silage from legume forage with positively manipulating rumen fermentation.
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Affiliation(s)
- Mariam G Ahmed
- Department of Animal and Fish Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - Adham A Al-Sagheer
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Ahmed M El-Waziry
- Department of Animal and Fish Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - Samir Z El-Zarkouny
- Department of Animal and Fish Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - Eman A Elwakeel
- Department of Animal and Fish Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
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11
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Fermentation Properties and Bacterial Community Composition of Mixed Silage of Mulberry Leaves and Smooth Bromegrass with and without Lactobacillus plantarum Inoculation. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9030279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
To evaluate the fermentation properties and bacterial community composition of mulberry leaves when ensiled with smooth bromegrass, and the effects of Lactobacillus plantarum inoculation on the mixed silage of mulberry leaves and smooth bromegrass, mulberry leaves were mixed with smooth bromegrass at ratios of 100:0, 90:10, 80:20, 70:30 and 60:40, and ensiled for 60 d with and without L. plantarum inoculant. The results showed that the sole fermentation of mulberry leaves failed to achieve optimum fermentation quality. Silage with a mulberry leaf ratio of 80% performed better fermentation quality compared with other non-inoculated groups, indicated by lower pH value, adequate lactic acid accumulation, and enriched proportion of Lactobacillus in the bacterial community. L. plantarum inoculation dramatically improved fermentation quality of mulberry leaf silage compared with the non-inoculated control. However, the fermentation quality of the inoculated silage decreased along with the reduction in the ratio of mulberry leaves. In conclusion, L. plantarum inoculation has the capability to improve the silage quality of mulberry leaves. Combined ensiling with smooth bromegrass could also aid in improving silage quality of mulberry leaves, with the optimum ratio of mulberry leaves being 80%.
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12
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Chen S, Wan C, Ma Y, Zhang K, Wang F, Shen S. Study on the Quality of Mixed Silage of Rapeseed with Alfalfa or Myriophyllum. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3884. [PMID: 36900894 PMCID: PMC10001299 DOI: 10.3390/ijerph20053884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
The objective of this study was to improve the comprehensive rate of utilization of rapeseed (Brassica napus subsp. napus L.), Myriophyllum (Myriophyllum spicatum L.) spicatum and alfalfa (Medicago sativa L.), reduce resource waste and environmental pollution. In this experiment, the effects of different proportions of the mixed silage of rapeseed and alfalfa or M. spicatum on the fermentation and nutritional quality were analyzed and further improved the quality of mixed silage using molasses and urea. Rapeseed was separately silaged with alfalfa and M. spicatum based on the ratios of 3:7, 5:5 and 7:3. After 60 days of mixed silage, the fermentation index and nutrient contents were measured to explore the appropriate ratio of mixed silage. The mixing ratio of rapeseed and alfalfa was better at 3:7: The contents of NH3-N/TN (4.61%), lactic acid (96.46 g·kg-1 dry matter [DM]) were significantly higher (p < 0.05). The crude protein content (118.20 g·kg-1 DM) was the highest (p < 0.05), while the pH (4.56) was the lowest when the mixing ratio of rapeseed and M. spicatum was 7:3. Considering the fermentation and nutrition quality, it is suggested that rapeseed and alfalfa should be mixed as silage at a ratio of 3:7 with 3% molasses and 0.3% urea, and rapeseed and M. spicatum should be mixed as silage at a ratio of 7:3 with 3% molasses.
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Affiliation(s)
- Siwei Chen
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China
- Dali Yunnan, Agricultural Ecosystem, National Observation and Research Station, Dali 671004, China
| | - Chen Wan
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China
- Dali Yunnan, Agricultural Ecosystem, National Observation and Research Station, Dali 671004, China
| | - Yingjun Ma
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
- Dali Yunnan, Agricultural Ecosystem, National Observation and Research Station, Dali 671004, China
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Keqiang Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
- Dali Yunnan, Agricultural Ecosystem, National Observation and Research Station, Dali 671004, China
| | - Feng Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
- Dali Yunnan, Agricultural Ecosystem, National Observation and Research Station, Dali 671004, China
| | - Shizhou Shen
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
- Dali Yunnan, Agricultural Ecosystem, National Observation and Research Station, Dali 671004, China
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13
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Dynamic changes in the bacterial communities and metabolites of Moringa oleifera leaves during fermentation with or without pyroligneous acid. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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14
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Tahir M, Li J, Xin Y, Wang T, Chen C, Zhong Y, Zhang L, Liu H, He Y, Wen X, Yan Y. Response of fermentation quality and microbial community of oat silage to homofermentative lactic acid bacteria inoculation. Front Microbiol 2023; 13:1091394. [PMID: 36741901 PMCID: PMC9895785 DOI: 10.3389/fmicb.2022.1091394] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/29/2022] [Indexed: 01/22/2023] Open
Abstract
Oat (Avena sativa L.) is one of the important forage crops in the world. However, oat grown in Southwest China has higher moisture content and their preservation face significant challenges. In addition, existing commercial lactic acid bacteria (LAB) have poor fermentation effects in hot and humid regions. Consequently, the current study investigated the response of oat fermentation quality and microbial community to self-selected LAB inoculation. The treatments were: CK, sterilized water; LP694, Lactobacillus plantarum 694; LR753, Lactobacillus rhamnosus 753; and LPLR, LP694 combined with LR753, followed by 1, 3, 7, 14, and 60 days (d) of fermentation. The results showed that LAB inoculation significantly raised the lactic acid content, and decreased the level of pH value, acetic acid, and ammonia-N in oat silage. The LR753 group had a significantly higher (p < 0.05) lactic acid content (60.95 g kg-1 DM), and lower pH value (3.95) and ammonia-N content (10.1 g kg-1 DM) followed by the LPLR group. The LR753 showed lower NDF (54.60% DM) and ADF (39.73% DM) contents than other groups. The Lactobacillus was a prevalent genus in LAB-treated groups, and its relative abundance reached maximum in LP694 (69%) on day 3, while in the LR753 group (72%) on 60 days. The Lactobacillus rhamnosus, Lactobacillus plantarum, and Lactobacillus fermentum became the dominant species in LAB-treated groups with fermentation time. The Lactobacillus genus was positively correlated with WSC (R = 0.6, p < 0.05), while negatively correlated with pH (R = -0.5, p < 0.05), and BA (R = -0.5, p < 0.01). Overall, the LR753 group had better fermentation quality and preservation of nutritional components providing theoretical support and guidance for future oat silage production in Southwest China.
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Affiliation(s)
- Muhammad Tahir
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China,State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China,School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jiayi Li
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yafen Xin
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Tianwei Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Chen Chen
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yihao Zhong
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Lei Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Haiping Liu
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yaling He
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xingjin Wen
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yanhong Yan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China,*Correspondence: Yanhong Yan,
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15
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Hou M, Wang Z, Sun L, Jia Y, Wang S, Cai Y. Characteristics of lactic acid bacteria, microbial community and fermentation dynamics of native grass silage prepared in Inner Mongolian Plateau. Front Microbiol 2023; 13:1072140. [PMID: 36699609 PMCID: PMC9868709 DOI: 10.3389/fmicb.2022.1072140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/07/2022] [Indexed: 01/11/2023] Open
Abstract
Introduction To prepare high-quality silage, we studied the chemical composition, silage fermentation, characterization, and identification of lactic acid bacteria (LAB) associated with the silage fermentation of native grass on the Inner Mongolian Plateau. Methods LAB were isolated from fresh native grass and their silage, and silages were prepared using a small-scale fermentation system with 2-3 cm length in plastic bags. Results The dominant species of native grasses used were Stipa baicalensis, Leymus chinensis, Cleistogenes squarrosa, Melissilus ruthenicus and Pulsatilla turczaninovii, which contained 47.83-59.43 % moisture, 55.12-67.74 % neutral detergent fiber (NDF), and 8.72-14.55 crude protein (CP), and these nutrients did not change greatly during ensiling. Good preservation with a relatively low pH (below 4.44) and high (p < 0.05) lactic acid content (>0.58) was obtained after ensiling. Based on the morphological and biochemical characteristics, these isolates were divided into 12 groups (A-L). All isolate strains were gram-positive and catalase-negative bacteria that produce lactic acid from glucose. Group A-K were cocci, while group L was rod-shaped. Group A-E formed D-lactic acid, but group H-K formed L-lactic acid, and other groups formed DL-lactic acid. Group A-E were heterofermentative, and Group F-L were homofermentative types of LAB. According to the 16S rRNA gene sequences analysis, strains were identified as genus Leuconostoc (A, B, and C), Weissellla (D, E), Pediococcus (F, G), Enterococcus (H, I, J and K), and Lactiplantibacillus (L). Enterococcus (E.) faecium (29.17%, percentage of total isolates) and Pediococcus (P.) acidilactici (18.75%) were the most frequently occurring dominant species. Discussion This study suggests that the native grasses contained abundant LAB species, and they can be used as good-quality silages in animal husbandry. In addition, the strains P. acidilactici and E. faecium were the most frequently isolated from native grass silages as dominant species which can be a potentially excellent inoculant for native grass silage.
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Affiliation(s)
- Meiling Hou
- College of Life Science, Baicheng Normal University, Baicheng, China,Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture, Key Laboratory of Grassland Resources, Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Zhijun Wang
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture, Key Laboratory of Grassland Resources, Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China,*Correspondence: Zhijun Wang, ; Yimin Cai,
| | - Lin Sun
- Inner Mongolia Academy of Agricultural Science & Animal Husbandry, Hohhot, China
| | - Yushan Jia
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture, Key Laboratory of Grassland Resources, Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Shicong Wang
- College of Life Science, Baicheng Normal University, Baicheng, China
| | - Yimin Cai
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Japan,*Correspondence: Zhijun Wang, ; Yimin Cai,
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16
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Chan ST, Padam BS, Chye FY. Effect of fermentation on the antioxidant properties and phenolic compounds of Bambangan ( Mangifera pajang) fruit. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2023; 60:303-314. [PMID: 36618056 PMCID: PMC9813291 DOI: 10.1007/s13197-022-05615-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/12/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022]
Abstract
The study aimed to determine the antioxidant activities and phenolic compounds of Bambangan (Mangifera pajang), a type of wild fruit belongs to the family of Anacardiaceae during fermentation at room (28 °C) and elevated temperature (35 °C). The antioxidant capacity was estimated based on 2,2-diphenyl-1-picyrlhydrazyl (DPPH) scavenging activity, ferric-ion-reducing power (FRAP), 2,2´-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation assay and oxygen-radical absorbing capacity (ORAC). A reversed phase high performance liquid chromatography (HPLC) was used to identify the phenolic compounds. Samples of bambangan fermented at 35 °C achieved the highest FRAP (141.42 mM Fe(II)/g extract) and ABTS values (5.00 mmol TE/g) within the first six days as compared to the samples fermented at room temperature (28 °C), which required 10 days to achieve the highest FRAP and ABTS values. No significant difference was found (p > 0.05) on the antioxidant activity of the samples that were kept at prolonged fermentation and storage. The total phenolic content (TPC) increased throughout the fermentation with the highest value of 44.69 ± 0.01 mg GAE/g. Gallic acid, chlorogenic acid, vanillin, ρ -coumaric acid and rutin are the major phenolic compounds identified in the fermented product. The results suggested that the antioxidant capacity of bambangan is affected by the fermentation temperature and the fermented product could be a source of antioxidants.
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Affiliation(s)
- Shet Teng Chan
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah Malaysia
| | - Birdie Scott Padam
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah Malaysia
| | - Fook Yee Chye
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah Malaysia
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17
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Ridwan R, Abdelbagi M, Sofyan A, Fidriyanto R, Astuti WD, Fitri A, Sholikin MM, Rohmatussolihat, Sarwono KA, Jayanegara A, Widyastuti Y. A meta-analysis to observe silage microbiome differentiated by the use of inoculant and type of raw material. Front Microbiol 2023; 14:1063333. [PMID: 36910222 PMCID: PMC9998704 DOI: 10.3389/fmicb.2023.1063333] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 01/09/2023] [Indexed: 03/14/2023] Open
Abstract
Silage fermentation is naturally carried out by lactic acid bacteria (LAB) to mainly produce lactic acid (LA) and other organic acids as preservatives. Along with fermentation time, the growth of LAB will replace and suppress undesirable microorganisms. This meta-analysis study aimed to explore silage microbiome differentiated by LAB inoculants and type of raw materials. A total of 37 articles with 185 studies and 475 datasets were used for building up the meta-database. Data were subjected to the mixed model methodology. The parameters observed were silage quality and silage microbiome post-ensiling process. Results revealed that four bacterial genera along with Weissella dominated the post-ensiling process. The addition of lactic acid inoculants in the silage has increased the abundance of Lactobacillus spp. and decreased the Shannon index significantly. Moreover, the abundance of both L. plantarum and L. buchneri increased, and subsequently, Weissella, Pseudomonas, Proteobacteria, pH value, ammoniacal nitrogen (NH3-N), coliforms, and the yeasts were decreased significantly due to the addition of LAB inoculants in silage (p < 0.05). Environmental factors such as temperature affected the existence of Pseudomonas, Exiguobacterium, and Acinetobacter. However, the dry matter, LA, acetic acid (AA), the ratio of LA to AA, and the LAB population were enhanced significantly (p < 0.05). Among the LAB types, the lowest abundance of Pseudomonas was due to the LAB group, while the lowest abundance of Weissella and Proteobacteria was due to the addition of the combined LAB group. In conclusion, the addition of LAB is effectively enhancing the silage microbiome and silage quality by altering bacterial diversity and the metabolic products of the silage materials for safe preservation.
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Affiliation(s)
- Roni Ridwan
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong, Indonesia.,Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia
| | - Mohammed Abdelbagi
- Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia.,Department of Animal Nutrition, Faculty of Animal Production University of Khartoum, Khartoum North, Sudan.,Study Program of Nutrition and Feed Science, Graduate School of IPB University, Bogor, Indonesia
| | - Ahmad Sofyan
- Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia.,Research Center for Animal Husbandry, National Research and Innovation Agency (BRIN), Cibinong, Indonesia
| | - Rusli Fidriyanto
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong, Indonesia.,Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia.,Study Program of Nutrition and Feed Science, Graduate School of IPB University, Bogor, Indonesia
| | - Wulansih D Astuti
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong, Indonesia.,Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia
| | - Ainissya Fitri
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong, Indonesia.,Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia
| | - Mohammad M Sholikin
- Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia.,Research Center for Animal Husbandry, National Research and Innovation Agency (BRIN), Cibinong, Indonesia
| | - Rohmatussolihat
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong, Indonesia.,Study Program of Nutrition and Feed Science, Graduate School of IPB University, Bogor, Indonesia
| | - Ki A Sarwono
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong, Indonesia.,Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia
| | - Anuraga Jayanegara
- Animal Feed and Nutrition Modelling (AFENUE) Research Group, Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor, Indonesia.,Department of Nutrition and Feed Technology, IPB University, Bogor, Indonesia
| | - Yantyati Widyastuti
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong, Indonesia
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18
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Dong Z, Li X, Fang D, Wang S, Li J, Dong D, Wang Y, Shao T. Effects of additives on the fermentation quality and bacterial community of silage prepared from fresh-cut whole-plant quinoa ( Chenopodium quinoa willd.). ITALIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1080/1828051x.2022.2139200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhihao Dong
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Xinbao Li
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Di Fang
- Xinyang Agricultural Experiment Station, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Siran Wang
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Junfeng Li
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Dong Dong
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
| | - Yiwei Wang
- Xinyang Agricultural Experiment Station, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Tao Shao
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, China
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19
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Jeong CH, Lee SH, Yoon Y, Choi HY, Kim HY. Identification of Optimal Fermentation Temperature for Dry-Fermented Sausage Using Strains Isolated from Korean Fermented Foods. Foods 2022; 12:foods12010137. [PMID: 36613352 PMCID: PMC9818867 DOI: 10.3390/foods12010137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
This study aims at identifying the optimal fermentation temperature for dry-fermented sausage using strains isolated from Kimchi (GK1, Pediococcus pentosaceus-GK1; NK3, P. pentosaceus-NK3), Doenjang (D1, Debaryomyces hansenii-D1), and commercial fermented sausage (S6, spontaneously generated Penicillium nalgiovense-S6). The microbial population, pH, moisture content, color, thiobarbituric acid reactive substance (TBARS), volatile basic nitrogen (VBN), and electronic nose (E-nose) were analyzed to identify the optimal fermentation temperature. The dry-fermented sausages were inoculated with three types of starter cultures [CS (commercial starter culture), GD (GK1 + D1 + S6), and ND (NK3 + D1 + S6)]. The fermentation was performed for 3 days at 20 °C and 25 °C, and dried for 28 days. The Lactobacillus spp. plate count and TBARS showed significantly higher values in the 25 °C group than in the 20 °C group (p < 0.05). The Staphylococcus spp. plate count of GD and ND were significantly higher than CS group at all temperatures. On day 31, the moisture content and VBN values of all groups were less than 35 % and 20 mg%, respectively. According to E-nose, the highest amount of acetoin was detected at the GD group fermented at 25 °C. Thus, the optimal fermentation temperature is expected at 25 °C after using GD in the manufacturing of dry-fermented sausages.
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Affiliation(s)
- Chang-Hwan Jeong
- Department of Animal Resources Science, Kongju National University, Yesan-Gun 32439, Republic of Korea
| | - Sol-Hee Lee
- Department of Animal Resources Science, Kongju National University, Yesan-Gun 32439, Republic of Korea
| | - Yohan Yoon
- Department of Food and Nutrient, Sookmyung Women’s University, Seoul 04310, Republic of Korea
| | - Hyung-Youn Choi
- Food Standard Research Center, Food Industry Research Division, Korea Food Research Institute, Wanju-Gun 55365, Republic of Korea
- Correspondence: (H.-Y.C.); (H.-Y.K.); Tel.: +82-63-219-9274 (H.-Y.C.); +82-41-330-1241 (H.-Y.K.); Fax: +82-63-219-9333 (H.-Y.C.); +82-41-330-1249 (H.-Y.K.)
| | - Hack-Youn Kim
- Department of Animal Resources Science, Kongju National University, Yesan-Gun 32439, Republic of Korea
- Correspondence: (H.-Y.C.); (H.-Y.K.); Tel.: +82-63-219-9274 (H.-Y.C.); +82-41-330-1241 (H.-Y.K.); Fax: +82-63-219-9333 (H.-Y.C.); +82-41-330-1249 (H.-Y.K.)
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20
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Zhao M, Wang Z, Du S, Sun L, Bao J, Hao J, Ge G. Lactobacillus plantarum and propionic acid improve the fermentation quality of high-moisture amaranth silage by altering the microbial community composition. Front Microbiol 2022; 13:1066641. [PMID: 36620031 PMCID: PMC9811146 DOI: 10.3389/fmicb.2022.1066641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
Objective The objective of this study was to determine the effect of Lactobacillus plantarum (L. plantarum) and propionic acid (PA) on the microbial community and fermentation performance of high-moisture amaranth silage. Methods Amaranth silages were rown without addition (AhGCK) as a control and with L. plantarum JYLP-002 (AhGLP) or propionic acid (AhGPA) and then were opened after 60 days of ensiling to determine the microbial community and fermentation quality. Results Crude protein (CP) content, lactic acid (LA) content, and lactic acid bacteria (LAB) counts were significantly higher in AhGLP and AhGPA compared with those in AhGCK (p < 0.05). In contrast, pH, acetic acid (AA) content, and yeast and aerobic bacteria counts were significantly lower in AhGLP and AhGPA compared with those in AhGCK (p < 0.05). In addition, propionic acid (PA) levels were markedly higher in AhGPA (p < 0.05). In terms of microbial communities, the silage in the additive groups showed an increased relative abundance of Lactiplantibacillus plantarum and Lentilactobacillus buchneri and a reduced relative abundance of Enterobacter cloacae and Clostridium tyrobutyricum. The abundance of Xanthomonas oryzae was significantly increased in AhGPA, but completely inhibited in the silage supplemented with L. plantarum. Spearman's correlation analysis revealed that Lentilactobacillus buchneri and Levilactobacillus brevis were positively associated with LA and negatively associated with pH. Conversely, Clostridium tyrobutyricum and Enterobacter cloacae were negatively associated with LA, but positively associated with pH and AA content. AA content was inversely correlated with Lentilactobacillus buchneri. Functional prediction analysis showed that LAB dominated the three groups of silage and the silages containing additives had improved carbohydrate and amino acid metabolism compared with the control silage; in particular, the AhGLP group had more heterotypic fermentation processes and a richer metabolic pathway. Furthermore, the epiphytic Lactiplantibacillus plantarum and Lentilactobacillus buchneri could inhibit the reproductive activity of undesirable microorganisms to a certain extent, thus slowing the spoilage process of the silage. Conclusion In conclusion, L. plantarum can improve fermentation characteristics by modulating the microbial community attached to high-moisture amaranth silage and will prove useful for preserving high-moisture silage.
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Affiliation(s)
- Muqier Zhao
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Zhijun Wang
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Shuai Du
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Lin Sun
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
| | - Jian Bao
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Junfeng Hao
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Gentu Ge
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China,*Correspondence: Gentu Ge,
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21
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Guo X, Xu D, Li F, Bai J, Su R. Current approaches on the roles of lactic acid bacteria in crop silage. Microb Biotechnol 2022; 16:67-87. [PMID: 36468295 PMCID: PMC9803335 DOI: 10.1111/1751-7915.14184] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
Lactic acid bacteria (LAB) play pivotal roles in the preservation and fermentation of forage crops in spontaneous or inoculated silages. Highlights of silage LAB over the past decades include the discovery of the roles of LAB in silage bacterial communities and metabolism and the exploration of functional properties. The present article reviews published literature on the effects of LAB on the succession, structure, and functions of silage microbial communities involved in fermentation. Furthermore, the utility of functional LAB in silage preparation including feruloyl esterase-producing LAB, antimicrobial LAB, lactic acid bacteria with high antioxidant potential, pesticide-degrading LAB, lactic acid bacteria producing 1,2-propanediol, and low-temperature-tolerant LAB have been described. Compared with conventional LAB, functional LAB produce different effects; specifically, they positively affect animal performance, health, and product quality, among others. In addition, the metabolic profiles of ensiled forages show that plentiful probiotic metabolites with but not limited to antimicrobial, antioxidant, aromatic, and anti-inflammatory properties are observed in silage. Collectively, the current knowledge on the roles of LAB in crop silage indicates there are great opportunities to develop silage not only as a fermented feed but also as a vehicle of delivery of probiotic substances for animal health and welfare in the future.
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Affiliation(s)
- Xusheng Guo
- School of Life SciencesLanzhou UniversityLanzhouChina,Probiotics and Biological Feed Research CentreLanzhou UniversityLanzhouChina
| | - Dongmei Xu
- School of Life SciencesLanzhou UniversityLanzhouChina,Probiotics and Biological Feed Research CentreLanzhou UniversityLanzhouChina
| | - Fuhou Li
- School of Life SciencesLanzhou UniversityLanzhouChina,Probiotics and Biological Feed Research CentreLanzhou UniversityLanzhouChina
| | - Jie Bai
- School of Life SciencesLanzhou UniversityLanzhouChina,Probiotics and Biological Feed Research CentreLanzhou UniversityLanzhouChina
| | - Rina Su
- School of Life SciencesLanzhou UniversityLanzhouChina,Probiotics and Biological Feed Research CentreLanzhou UniversityLanzhouChina
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22
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Development of Probiotic-Fermented Black Mulberry (Morus nigra L.) Juice and Its Antioxidant Activity in C2C12 Cells. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8120697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Black mulberry (Morus nigra L.) is considered a medicinal and food-homologous plant in China. An obstacle to its widespread use is that its annual season and shelf life are extremely short. In this paper, fermented black mulberry juice (FBMJ) was prepared with various probiotic strains, and response surface methodology was used to determine the optimum production conditions for achieving the maximum active substance content in the resulting product. The fermentation process increased levels of biological enzymes and total phenols in the resulting juice. When the ratios of the Lactobacillus inocula to the total inoculum were 27.96% for L. paracasei, 15.37% for L. casei, 16.64% for L. plantarum, and 5.12% for L. delbrueckii, the B. animalis subsp. lactis content reached 15.83%, the L. fermentum content reached 19.08%, and the superoxide dismutase (SOD) activity reached 310 U/g. To study the antioxidant characteristics of the juice, C2C12 cells were treated with H2O2 to induce oxidative stress and the cytoprotective activity of FBMJ was subsequently evaluated. After treatment with FBMJ for 24 h, cell viability was found to be protected under H2O2 exposure, while SOD and glutathione peroxidase (GSH-Px) levels were increased. The reactive oxygen species level and malondialdehyde content were also decreased. These results provide molecular evidence for the antioxidant effect of FBMJ and demonstrate that lactic acid bacteria fermentation has a positive effect on black mulberry juice (BMJ).
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23
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Su W, Jiang Z, Wang C, Zhang Y, Gong T, Wang F, Jin M, Wang Y, Lu Z. Co-fermented defatted rice bran alters gut microbiota and improves growth performance, antioxidant capacity, immune status and intestinal permeability of finishing pigs. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2022; 11:413-424. [PMID: 36382202 PMCID: PMC9640948 DOI: 10.1016/j.aninu.2022.07.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 03/15/2022] [Accepted: 07/25/2022] [Indexed: 05/19/2023]
Abstract
Based on preparation of co-fermented defatted rice bran (DFRB) using Bacillus subtilis, Saccharomyces cerevisiae, Lactobacillus plantarum and phytase, the present study aimed to evaluate the effects of co-fermented DFRB on growth performance, antioxidant capacity, immune status, gut microbiota and permeability in finishing pigs. Ninety finishing pigs (85.30 ± 0.97 kg) were randomly assigned to 3 treatments (3 replicates/treatment) with a basal diet (Ctrl), a basal diet supplemented with 10% unfermented DFRB (UFR), and a basal diet supplemented with 10% fermented DFRB (FR) for 30 d. Results revealed that the diet supplemented with FR notably (P < 0.05) improved the average daily gain (ADG), gain to feed ratio (G:F) and the digestibility of crude protein, amino acids and dietary fiber of finishing pigs compared with UFR. Additionally, FR supplementation significantly (P < 0.05) increased total antioxidant capacity, the activities of superoxide dismutase and catalase, and decreased the content of malonaldehyde in serum. Furthermore, FR remarkably (P < 0.05) increased serum levels of IgG, anti-inflammatory cytokines (IL-22 and IL-23) and reduced pro-inflammatory cytokines (TNF-α, IL-1β and INF-γ). The decrease of serum diamine oxidase activity and serum D-lactate content in the FR group (P < 0.05) suggested an improvement in intestinal permeability. Supplementation of FR also elevated the content of acetate and butyrate in feces (P < 0.05). Moreover, FR enhanced gut microbial richness and the abundance of fiber-degrading bacteria such as Clostridium butyricum and Lactobacillus amylovorus. Correlation analyses indicated dietary fiber in FR was associated with improvements in immune status, intestinal permeability and the level of butyrate-producing microbe C. butyricum, which was also verified by the in vitro fermentation analysis. These findings provided an experimental and theoretical basis for the application of fermented DFRB in finishing pigs.
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Affiliation(s)
- Weifa Su
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Zipeng Jiang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Cheng Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Yu Zhang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Tao Gong
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Fengqin Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Mingliang Jin
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Yizhen Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Zeqing Lu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Corresponding author.
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24
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Li M, Yu Q, Xu J, Sun H, Cheng Q, Xie Y, Wang C, Li P, Chen C, Zheng Y. Effect of different organic acid additives on the fermentation quality and bacterial community of paper mulberry ( Broussonetia papyrifera) silage. Front Microbiol 2022; 13:1038549. [PMID: 36386675 PMCID: PMC9665874 DOI: 10.3389/fmicb.2022.1038549] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023] Open
Abstract
To investigate the effects of different organic acid additives and their concentrations on the fermentation quality and bacterial community of paper mulberry silage, paper mulberry was left untreated (control) or was treated with ethylenediaminetetraacetic acid (EDTA), propionic acid (PA) or citric acid (CA), the amount of each additive was 2 g.kg-1 FM, 5 g.kg-1 FM and g.kg-1 FM. All groups were ensiled for 3, 7, 15, 30 and 60 days. Compared to the control, adding EDTA reduced protein breakdown, preserved more water-soluble carbohydrates of the silages (WSCs, 24.74 g.kg-1 DM), and high concentrations of EDTA inhibited the activity of undesirable microorganisms. Adding PA increased the abundance of Lactiplantibacillus and decreased the abundance of Enterococcus, and it caused a rapid decrease in the pH of the silage at an early stage (from 6.50 to 5.31) while altering the microbiota, and low concentrations of PA resulted in high LA (66.22 g.kg-1 DM) concentration and low PA (9.92 g.kg-1 DM) concentration at 60 days of ensiling. Different concentrations of additives altered the microbial community of paper mulberry to different degrees. High concentrations of PA and CA can increase the abundance of Lactiplantibacillus. High concentrations of CA resulted in a rapid decrease in silage pH at an early stage and higher WSC concentration. These results suggest that EDTA, PA and CA can be used as additives to improve the quality of paper mulberry silage.
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Affiliation(s)
- Mengxin Li
- College of Animal Science, Guizhou University, Guiyang, China
| | - Qiang Yu
- College of Animal Science, Guizhou University, Guiyang, China
| | - Jinyi Xu
- College of Animal Science, Guizhou University, Guiyang, China
| | - Hong Sun
- College of Animal Science, Guizhou University, Guiyang, China
| | - Qiming Cheng
- College of Animal Science, Guizhou University, Guiyang, China
| | - Yixiao Xie
- College of Animal Science, Guizhou University, Guiyang, China
| | - Chunmei Wang
- Key Laboratory of Animal Genetics, Breeding & Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, Guizhou, China
| | - Ping Li
- College of Animal Science, Guizhou University, Guiyang, China
| | - Chao Chen
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding & Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, Guizhou, China
| | - Yulong Zheng
- College of Animal Science, Guizhou University, Guiyang, China
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Zheng Y, Li M, Xu J, Sun H, Cheng Q, Xie Y, Wang C, Chen C, Li P. Effects of different cutting methods and additives on the fermentation quality and microbial community of Saccharum arundinaceum silage. Front Microbiol 2022; 13:999881. [PMID: 36212833 PMCID: PMC9539546 DOI: 10.3389/fmicb.2022.999881] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
To develop a new high-yielding and polysaccharide-containing forage resource for livestock, the effects of different cutting methods and additives on Saccharum arundinaceum silage were evaluated. The wilted S. arundinaceum were chopped and knead-wired. The silages from each cutting method were treated with Lactobacillus plantarum (LP), cellulase (CE) and the combination of LP and CE (LP + CE) for 3, 7, 15, 30, and 60 days. Compared with the CK treatment, CE treatment exhibited better effects in the degradation of neutral detergent fiber (NDF), LP exhibited a better performance in preserving the content of dry matter (DM), and adding LP + CE significantly enhanced (P < 0.05) the contents of lactic acid (LA), crude protein (CP) and DM and significantly reduced (P < 0.05) the pH and NDF content during ensiling. In addition, both additives exerted a remarkable effect on the silage bacterial community (P < 0.05), with a dramatic increase in the Lactobacillus abundance and a decrease in the abundance of Enterobacter. Lactic acid bacteria (LAB) became the most dominant bacteria that affected the fermentation quality of LP and LP + CE silages. Meanwhile, chopped silages showed better fermentation quality and nutrient preservation and a higher abundance of LAB. Our research indicated that the chopped S. arundinaceum ensiling with LP + CE could exert a positive effect on LA fermentation and preservation of nutrient substances by shifting the bacterial community. In conclusion, S. arundinaceum can serve as a new silage resource for feed utilization by the ensiling method of LP + CE-chopped.
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Affiliation(s)
- Yulong Zheng
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Mengxin Li
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Jinyi Xu
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Hong Sun
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Qiming Cheng
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Yixiao Xie
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Chunmei Wang
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, Guizhou, China
| | - Chao Chen
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Ping Li
- Collage of Animal Science, Guizhou University, Guiyang, Guizhou, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, Guizhou, China
- *Correspondence: Ping Li,
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Wu C, Sun W, Huang Y, Dai S, Peng C, Zheng Y, Chen C, Hao J. Effects of different additives on the bacterial community and fermentation mode of whole-plant paper mulberry silage. Front Microbiol 2022; 13:904193. [PMID: 36160218 PMCID: PMC9493322 DOI: 10.3389/fmicb.2022.904193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
The purpose of this study was to investigate the effects of inoculation with two lactic acid bacteria (LAB) strains (Lacticaseibacillus rhamnosus and Lentilactobacillus buchneri) and the addition of four corn flour proportions (0, 3, 6, and 9%) in different treatments, on the composition and function of the bacterial community in whole-plant paper mulberry silage. The different treatments promoted Lactiplantibacillus, Lentilactobacillus, and Lacticaseibacillus growth, but the microbial species responsible for fermentation differed among the treatments. High species diversity and various Gram-negative bacteria, such as Flavitalea sp., Pantoea agglomerans, Acinetobacter pittii, Turicibacter sanguinis, and Ralstonia pickettii, were found in the uninoculated LAB treatments. A beneficial bacterium, Lactobacillus johnsonii, was discovered for the first time in whole-plant paper mulberry silage. LAB inoculation simplifies the microbial community structure, and beneficial Lactobacillus as a key species aggregates in the inoculated treatment group. However, L. rhamnosus inoculation alone may have limited bacteriostatic activity against in whole-plant paper mulberry silage. Compared with silage lacking corn flour, amino sugar and nucleotide sugar metabolism, galactose metabolism, the phosphotransferase system and the pentose phosphate pathway metabolic activity were increased in corn flour-containing silage. Whole-plant paper mulberry can be used as a high-quality silage to provide high-quality feed resources for sustainable ruminant livestock production. Moreover, additive use is necessary for preparing paper mulberry silage.
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The performance of lactic acid bacteria in silage production: a review of modern biotechnology for silage improvement. Microbiol Res 2022; 266:127212. [DOI: 10.1016/j.micres.2022.127212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 11/23/2022]
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Kazemi M, Valizadeh R, Ibrahimi Khoram Abadi E. Yogurt and molasses can alter microbial-digestive and nutritional characteristics of pomegranate leaves silage. AMB Express 2022; 12:111. [PMID: 36048307 PMCID: PMC9437189 DOI: 10.1186/s13568-022-01452-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 08/18/2022] [Indexed: 11/28/2022] Open
Abstract
Fewer studies in recent years have been conducted on the nutritional potential and fermentation quality of silage prepared from pomegranate leaves (PL). So, we investigated the nutritional-fermentation quality of PL before and after ensiling with or without yogurt containing mainly lactic acid-producing bacteria (Lactobacillus bulgaricus and Streptococcus thermophiles) and molasses (at two levels of 2 and 4% of dry matter) in the polyethylene microsilos for 60 days. A range of dry matter (29.1–39.1%), crude protein (3.85–4.83%), ash (5.33–8.60%), and non-fiber carbohydrates (53.2%–58.6%) contents were observed among the treatments. A significant increase in calcium, potassium, magnesium, manganese, iron, and zinc was observed in PL after ensiling compared to before ensiling (p < 0.05). The PL ensiled with 4% yogurt exhibited the highest ammonia nitrogen, lactic and acetic acids, but the lowest butyric acid among the ensiled PL (p < 0.05). The ensiling of PL without additive (control) significantly decreased potential gas production, dry matter digestibility, organic matter digestibility, total volatile fatty acids, metabolizable energy, net energy for lactation, base-buffering capacity, titratable alkalinity, and acid–base buffering capacity compared to before ensiling (p < 0.05). According to the present results, the nutritional value of PL before ensiling was higher than after ensiling. The addition of yogurt and molasses to PL at the ensiling process especially at 4% of dry matter, improved the fermentation and nutritional characteristics. In general, the addition of yogurt or molasses as two cheap and available additives is recommended to improve the digestive-fermentation parameters of PL in silo and ruminal environments.
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Affiliation(s)
- Mohsen Kazemi
- Department of Animal Science, Faculty of Agriculture and Animal Science, University of Torbat-e Jam, Torbat-e Jam, Iran.
| | - Reza Valizadeh
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Elias Ibrahimi Khoram Abadi
- Department of Animal Science, Faculty of Agriculture and Animal Science, University of Torbat-e Jam, Torbat-e Jam, Iran
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Cheng Q, Li M, Fan X, Chen Y, Sun H, Xie Y, Zheng Y, Chen C, Li P. Effects of epiphytic and exogenous lactic acid bacteria on fermentation quality and microbial community compositions of paper mulberry silage. Front Microbiol 2022; 13:973500. [PMID: 36090070 PMCID: PMC9453674 DOI: 10.3389/fmicb.2022.973500] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to isolate, characterize, and identify lactic acid bacteria (LAB) strains from various sources and evaluate their effects on the nutritional quality, fermentation characteristics, and microbial compositions of paper mulberry (PM) after 60 days of ensiling. Forty-nine LAB strains were isolated from Phalaris arundinacea silage, pickle, and fresh PM leaves; three of these strains (Lactiplantibacillus plantarum, YC1; Levilactobacillus brevis, PC3; and Lactiplantibacillus plantarum, BP17) and one commercial inoculant Gaofuji (GFJ) were subsequently used. Compared with other treatments, PC3 and BP17 increased (P < 0.05) the LAB count and crude protein content and decreased (P < 0.05) the molds and coliform bacteria counts, pH, and ammonia-N content of PM silages. BP17 and PC3 increased the relative Lactiplantibacillus abundance and decreased that of Lelliottia and Cladosporium, improving PM silage quality. Therefore, PC3 and BP17 can improve the fermentation quality of PM silage and could be used as silage starter cultures.
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Affiliation(s)
- Qiming Cheng
- College of Animal Science, Guizhou University, Guiyang, China
- Sichuan Academy of Grassland Sciences, Chengdu, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Maoya Li
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Xueying Fan
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Yulian Chen
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Hong Sun
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Yixiao Xie
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Yulong Zheng
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Chao Chen
- College of Animal Science, Guizhou University, Guiyang, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
| | - Ping Li
- College of Animal Science, Guizhou University, Guiyang, China
- Sichuan Academy of Grassland Sciences, Chengdu, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
- *Correspondence: Ping Li,
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Suárez SE, Sun H, Mu T, Añón MC. Bacterial characterization of fermented sweet potato leaves by high‐throughput sequencing and their impact on the nutritional and bioactive composition. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Santiago Emmanuel Suárez
- Laboratory of Food Chemistry and Nutrition Science, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro‐Products Processing, Ministry of Agriculture and Rural Affairs Beijing China
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA) Facultad de Ciencias Exactas, Universidad Nacional de La Plata. CCT, La Plata, CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas). CIC (Comisión de Investigaciones Científicas de la Provincia de Buenos Aires) La Plata Argentina
| | - Hongnan Sun
- Laboratory of Food Chemistry and Nutrition Science, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro‐Products Processing, Ministry of Agriculture and Rural Affairs Beijing China
| | - Taihua Mu
- Laboratory of Food Chemistry and Nutrition Science, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro‐Products Processing, Ministry of Agriculture and Rural Affairs Beijing China
| | - María Cristina Añón
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA) Facultad de Ciencias Exactas, Universidad Nacional de La Plata. CCT, La Plata, CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas). CIC (Comisión de Investigaciones Científicas de la Provincia de Buenos Aires) La Plata Argentina
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Tang W, Liao L, Xiao Y, Zhai J, Su H, Chen Y, Guo Y. Epicuticular wax of sweet sorghum influenced the microbial community and fermentation quality of silage. Front Microbiol 2022; 13:960857. [PMID: 35966662 PMCID: PMC9372506 DOI: 10.3389/fmicb.2022.960857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/04/2022] [Indexed: 11/17/2022] Open
Abstract
Epicuticular wax, as secondary metabolites (hydrophobic compounds) covering plant surface, plays important roles in protecting plants from abiotic and biotic stresses. However, whether these compounds will influence fermentation process of silage is still not clear. In this study, two sweet sorghum cultivars with varying epicuticular wax on sheath (bloom), Yajin 2 (YJ, less bloom), and Jintian (JT, dense bloom), were harvested at flowering and maturing stages, and ensiled with or without bloom, aiming to evaluate the effects of bloom on fermentation quality, feed nutrition and microbial community. The bloom was collected manually with de-waxed cotton and extracted with chloroform. The results showed that the bloom reduced the concentrations of water-soluble carbohydrate and crude protein of the two cultivars at both stages, reduced lactic acid (LA) for YJ at both stages and for JT at flowering stage, and increased LA for JT at mature stage. The α-diversity of bacterial communities of the silage fermentation with bloom was significantly lower than that without bloom. Bloom increased the abundance of Lactobacillus, reduced that of Bacillus and Weissella, and significant correlations were observed between fermentative qualities and bacterial abundances. However, decreased diversity of bacterial community and the contents of LA implied that shifts in bacterial community might exert negative effects on silage fermentation. Our results suggest that bloom wax could alter the microbial community composition of ensiled sweet sorghums, which thus influence the fermentation qualities.
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Affiliation(s)
- Wei Tang
- College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Longxing Liao
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Yu Xiao
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Jianrong Zhai
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Hang Su
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yingjie Chen
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yanjun Guo
- College of Grassland Science, Qingdao Agricultural University, Qingdao, China
- *Correspondence: Yanjun Guo,
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Liu Y, Chen T, Sun R, Zi X, Li M. The effects of lactic acid bacteria and molasses on microbial community and fermentation performance of mixed silage of king grass and cassava foliage. FRONTIERS IN ANIMAL SCIENCE 2022. [DOI: 10.3389/fanim.2022.879930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In the present study, we aim to investigate the effects of lactic acid bacteria (LAB) and molasses (M) on the microbial community and fermentation performance of mixed silage of king grass (KG) and cassava foliage (CF). A completely randomized design was used for the experiment. Mixed material was ensiled with no additive added (CK) for 60 days. Alternatively, mixed silage was supplemented with M, LAB (L), or M + LAB (ML) and then subjected to fermentation. Compared with the CK group, the contents of lactic acid and propionic acid in the L group were enhanced, whereas the content of acetic acid was reduced. Moreover, the levels of pH, butyric acid, and ammonia-N were not significantly changed. In contrast, the lower contents of pH, acetic acid, propionic acid, and butyric acid, as well as ammonia-N in the M and ML groups were observed, whereas the content of lactic acid was elevated. Additives could change the silage quality of mixed silage to different extents. The effect of the L treatment was not ideal, and the ML group had a better fermentation quality compared with the M group. In terms of microbial community, the relative abundance of desirable Lactobacillus was increased in the M, L, and ML groups. The relative abundance of Pseudomonas was decreased in the M and L groups. Compared with the CK group, the relative abundance of Stenotrophomonas was decreased, especially in the M (0.18%) and ML (0.19%) groups. For Paenibacillus, its relative abundance was increased in the ML group and more significantly increased in the M group. In summary, the combination of LAB and M at an equal ratio had a more positive effect on the fermentation quality and microbial community of mixed silage than LAB and M alone.
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Cui X, Yang Y, Zhang M, Jiao F, Gan T, Lin Z, Huang Y, Wang H, Liu S, Bao L, Su C, Qian Y. Optimized Ensiling Conditions and Microbial Community in Mulberry Leaves Silage With Inoculants. Front Microbiol 2022; 13:813363. [PMID: 35722340 PMCID: PMC9201477 DOI: 10.3389/fmicb.2022.813363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 05/05/2022] [Indexed: 11/21/2022] Open
Abstract
Mulberry leaves (ML) are a promising alternative fodder source due to their high protein content and the abundance of active components. A test of three inoculants in various combinations revealed that high-quality ML silage was produced at an inoculum ratio of 1:1:0 (50% Saccharomyces cerevisiae, 50% Lactobacillus plantarum, and 0% Bacillus subtilis). Using dry matter (DM) loss, pH, ammonia-N and amino acid contents, total antioxidant activity, and total flavonoids content to evaluate silage quality, this inoculant mixture was shown to produce high-quality silage within a range of inoculum size (5–15%), moisture contents (50–67%), ensiling temperatures (27–30°C), and ensiling duration (14–30 days). A third trial comparing silages produced after 30 days at 28°C and 50% moisture content revealed that silage E, prepared using an L. plantarum inoculant alone, displayed the lowest DM loss and pH, and low bacterial diversity, and it was dominated by Lactobacillus (88.6%), with low abundance of Enterobacter (6.17%). In contrast, silage B5, prepared with equal ratios of L. plantarum and S. cerevisiae, was dominated by Enterococcus (67.16%) and Lactobacillus (26.94%), with less marked yeast persistence, and reducing the DM content from 50 to 40% altered these relative abundances to 5.47 and 60.61, respectively. Control silages produced without an inoculant had the highest pH and ammonia-N content (indicative of poor quality), had the lowest antioxidant activity, had higher bacterial diversity, and were dominated by Carnobacterium (74.28%) and Enterococcus (17.3%). In summary, ensiling of ML conditions with proper inoculants yielded high-quality silage with a favorable microbial community composition.
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Affiliation(s)
- Xiaopeng Cui
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Yuxin Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Minjuan Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Feng Jiao
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Tiantian Gan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Ziwei Lin
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Yanzhen Huang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Hexin Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Shuang Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Lijun Bao
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Chao Su
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Yonghua Qian
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
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Li H, Zeng T, Du Z, Dong X, Xin Y, Wu Y, Huang L, Liu L, Kang B, Jiang D, Wu B, Yang W, Yan Y. Assessment on the Fermentation Quality and Bacterial Community of Mixed Silage of Faba Bean With Forage Wheat or Oat. Front Microbiol 2022; 13:875819. [PMID: 35602069 PMCID: PMC9114351 DOI: 10.3389/fmicb.2022.875819] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/25/2022] [Indexed: 11/18/2022] Open
Abstract
Faba bean (Vicia faba L.), although a kind of high-quality and high-yield forage, could hardly achieve a great quality of silage because of its high buffering capacity. Mixed silage of faba bean with forage wheat (Triticum aestivum L.) or oat (Avena sativa L.) at different ratios could improve the fermentation quality and bacterial community. Compared with 100% faba bean silage (BS), mixed silage improved the fermentation quality, not only increased lactic acid production and reduced pH, but reduced the production of propionic acid and ammonia nitrogen. The chemical compositions of faba bean with forage wheat (BT) mixed silage were better than that of faba bean with oat (BO) mixed silage, and that of 3:7, 5:5 (fresh matter basis) mixing ratios were better than 1:9. However, the fermentation quality of BO mixed silage was better than that of BT, and that of 3:7 mixed silage (BO30) was the best overall. Analysis of the bacterial community showed that mixed silage increased the relative abundance of lactic acid bacteria after ensiling, and the relatively higher abundance of Lactobacillus showed the inhibitory effects on the proliferation of Serratia and Hafnia_Obesumbacterium, so that it alleviated their negative effects on silage and stabilized the fermentation quality. This present study exhibited that mixed silage of faba bean with forage wheat or oat not only had significant effects on chemical compositions and fermentation quality of materials but modified bacterial community so that improved the fermentation quality effectively. The mixed silage of 30% faba bean with 70% oat (BO30) is recommended in the faba bean mixed silage.
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Affiliation(s)
- Hongliang Li
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Tairu Zeng
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Zhaochang Du
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xintan Dong
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yafen Xin
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yushan Wu
- Department of Crop Cultivation and Tillage, College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - Linkai Huang
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Lin Liu
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Bo Kang
- Department of Animal Science, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Dongmei Jiang
- Department of Animal Science, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Bihua Wu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Wenyu Yang
- Department of Crop Cultivation and Tillage, College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - Yanhong Yan
- Department of Forage Breeding and Cultivation, College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
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He L, Wang Y, Guo X, Chen X, Zhang Q. Evaluating the Effectiveness of Screened Lactic Acid Bacteria in Improving Crop Residues Silage: Fermentation Parameter, Nitrogen Fraction, and Bacterial Community. Front Microbiol 2022; 13:680988. [PMID: 35685937 PMCID: PMC9171049 DOI: 10.3389/fmicb.2022.680988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/08/2022] [Indexed: 11/29/2022] Open
Abstract
Ensiling characteristics of sweet potato vine (SPV) and peanut straw (PS), as well as the effects of lactic acid bacteria (LAB) strains, Lactococcus Lactis MK524164 (LL) and Lactobacillus farciminis MK524159 (LF), were investigated in this study. Fermentation parameters, nitrogen fractions, and bacterial community of SPV and PS were monitored at intervals during the ensiling process. The results showed that inoculating LAB increased lactate production (2.23 vs. 2.73%; 0.42 vs. 1.67% DM), accelerated pH decline (5.20 vs. 4.47; 6.30 vs. 5.35), and decreased butyrate (0.36% DM vs. not detected), ammonia-N (6.41 vs. 4.18% CP), or nonprotein-N (43.67 vs. 35.82% CP). Meanwhile, it altered the silage bacterial community, where the relative abundance of Lactobacillus was increased (6.67–32.03 vs. 45.27–68.43%; 0.53–10.45 vs. 38.37–68.62%) and that of undesirable bacteria such as Clostridium, Enterobacter, Methylobacterium, or Sphingomonas was much decreased. It is suggested that the screened LAB strains LL and LF can effectively improve the silage quality of SPV and PS silages.
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Affiliation(s)
- Liwen He
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yimin Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiang Guo
- College of Forestry and Landscape Architecture, Guangdong Province Research Center of Woody Forage Engineering Technology, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
| | - Xiaoyang Chen
- College of Forestry and Landscape Architecture, Guangdong Province Research Center of Woody Forage Engineering Technology, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
| | - Qing Zhang
- College of Forestry and Landscape Architecture, Guangdong Province Research Center of Woody Forage Engineering Technology, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- *Correspondence: Qing Zhang
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Liu Y, Chen T, Sun R, Zi X, Li M. Effects of Lactobacillus plantarum on Silage Fermentation and Bacterial Community of Three Tropical Forages. FRONTIERS IN ANIMAL SCIENCE 2022. [DOI: 10.3389/fanim.2022.878909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The fermentation quality and microbial diversity of king grass (K), cassava foliage (C), and Broussonetia papyrifera (B) ensiled in the absence of an inoculant (K, C, B) or the presence of Lactobacillus plantarum (KL, CL, BL) for 60 days were investigated. The bacterial community was characterized by using the 16S rDNA sequencing technology. The relative abundance of Lactobacillus in K was very high, and it decreased after adding L. plantarum while Acinetobacter increased to some extent. The relative abundance of Lactobacillus in group C was also very high, and the inoculant L. plantarum enriched it in the CL group. As the second dominant genus of group C, the relative abundance of Pseudomonas decreased significantly in CL. Weissella and Enterobacter were the dominant genera in B and BL, and the relative abundance of Lactobacillus decreased in BL. For K, C, and B, the inoculant L. plantarum decreased the pH value and NH3-N content markedly, inhibited the production of butyric acid, increased the content of lactic acid, and significantly improved the fermentation quality. In conclusion, L. plantarum affected the bacterial community of C and improved the silage quality of K, C, and B to a certain extent.
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Silage Quality and Output of Different Maize–Soybean Strip Intercropping Patterns. FERMENTATION 2022. [DOI: 10.3390/fermentation8040174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Intercropping improves land-use efficiency under conditions of limited land and resources, but no information is currently available pertaining to land-use efficiency and silage quality based on whole-plant utilization. Therefore, a two-year field experiment was conducted with the following conditions: three maize–soybean strip intercropping patterns (SIPs), comprising two maize rows along with two, three, or four soybean rows (2M2S, 2M3S, and 2M4S, respectively); and two sole cropping patterns of maize (SM) and soybean (SS). The aim was to evaluate the biomass yield and silage quality under each condition. Our results showed that all SIPs had a land equivalent ratio (LER) of over 1.6 based on both fresh and dry matter yield, and a higher whole plant yield, compared to sole cropping. Specifically, 2M3S exhibited the highest whole crop dry matter LER (1.8–1.9) and yield (24.6–27.2 t ha−1) compared to SM and SS (20.88–21.49 and 3.48–4.79 t ha−1, respectively). Maize–soybean mixed silages also showed better fermentation quality with higher lactic acid content (1–3%) and lower ammonia-N content (2–8%) compared to SS silages, and higher crude protein content (1–1.5%) with lower ammonia-N content (1–2%) compared to SM silage. Among the intercropping patterns, 2M3S had the highest fermentation quality index V-score (92–95). Consequently, maize–soybean strip intercropping improved silage quality and biomass yield, with 2M3S being recommended, due to its highest LER and biomass yield, and most optimal silage quality.
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Li Y, Du S, Sun L, Cheng Q, Hao J, Lu Q, Ge G, Wang Z, Jia Y. Effects of Lactic Acid Bacteria and Molasses Additives on Dynamic Fermentation Quality and Microbial Community of Native Grass Silage. Front Microbiol 2022; 13:830121. [PMID: 35401455 PMCID: PMC8989346 DOI: 10.3389/fmicb.2022.830121] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/26/2022] [Indexed: 12/12/2022] Open
Abstract
Ensiling native grass is an effective method to protect the nutritional quality of forage and alleviate feed shortages in the cold winter of the Inner Mongolian Plateau. To improve the usability of native grass resources as feed in China, the effects of lactic acid bacteria and molasses additions on the microbial population, fermentation quality, and nutritional quality of native grass during silage were investigated. Treatments were a control treatment with no additive (CK), lactic acid bacteria (L), molasses (M), and lactic acid bacteria in combination with molasses (L+M), all of which were stored at ambient temperature (17-28°C) for 7, 14, 30, and 60 days. The results showed that all additives improved nutritional value and fermentation quality with low pH and ammonia nitrogen (NH3-N) and high crude protein (CP) and water soluble carbohydrate (WSC) than control silage over the ensiling period. Compared with L or M silage, the L+M silage combination improved fermentability, as evidenced by higher LA content and a faster pH drop during the first 7 days of ensiling. With prolonged ensiling time, the combined addition of L and M could increase the count of desirable Lactobacillus, decrease microbial diversity, and inhibit the growth of undesirable microorganism, such as Clostridia, Escherichia, and Enterobacter abundance compared with silage treated with CK, L. or M. Application of L together with M could further improve the silage quality of native grass by altering bacterial community structure. In summary, the addition of lactic acid bacteria and molasses increased the relative abundance of Lactobacillus of native grass silage and improved fermentation quality.
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Affiliation(s)
- Yuyu Li
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Shuai Du
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Lin Sun
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot, China
| | - Qiming Cheng
- College of Animal Science, Guizhou University, Guiyang, China
| | - Junfeng Hao
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Qiang Lu
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Gentu Ge
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - ZhiJun Wang
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Yushan Jia
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
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Fang D, Dong Z, Wang D, Li B, Shi P, Yan J, Zhuang D, Shao T, Wang W, Gu M. Evaluating the fermentation quality and bacterial community of high‐moisture whole‐plant quinoa silage ensiled with different additives. J Appl Microbiol 2022; 132:3578-3589. [DOI: 10.1111/jam.15506] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Di Fang
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
| | - Zhihao Dong
- Institute of Ensiling and Processing of Grass College of Agro‐grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095 China
| | - Deling Wang
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
| | - Bin Li
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
| | - Pibiao Shi
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
| | - Jun Yan
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
| | - Dongying Zhuang
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
| | - Tao Shao
- Institute of Ensiling and Processing of Grass College of Agro‐grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095 China
| | - Weiyi Wang
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
| | - Minfeng Gu
- Xinyang Agricultural Experiment Station of Yancheng City Yancheng 224049 Jiangsu China
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Bai C, Pan G, Leng R, Ni W, Yang J, Sun J, Yu Z, Liu Z, Xue Y. Effect of Ensiling Density and Storage Temperature on Fermentation Quality, Bacterial Community, and Nitrate Concentration of Sorghum-Sudangrass Silage. Front Microbiol 2022; 13:828320. [PMID: 35250945 PMCID: PMC8895230 DOI: 10.3389/fmicb.2022.828320] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/10/2022] [Indexed: 11/13/2022] Open
Abstract
This study aimed to evaluate the fermentation quality, bacterial community, and nitrate content of sorghum-sudangrass silage with two ensiling densities [550 kg fresh weight (FW)/m3 (low density, LD) and 650 kg FW/m3 (high density, HD)] stored at two temperatures [10°C (low temperature, LT) and 25°C (normal temperature, NT)] for 60 days. The fermentation parameters, microbial counts, bacterial community, nutritional composition, and nitrate and nitrite levels were assessed. The pH and ammonia nitrogen (N) in all silages were below 4.0 and 80 g/kg total N, respectively. Compared with LT treatments, NT treatments had lower pH and lactic acid (LA) bacteria and yeasts counts and contained higher LA and LA/acetic acid (LA/AA) (p < 0.05). The LT-LD contained more ammonia-N than LT-HD (p < 0.05) and had higher nitrate and lower nitrate degradation than other treatments (p < 0.05). Lactobacillus was the most dominant genus with all treatments (57.2-66.9%). The LA, LA/AA, and abundances of Pantoea, Pseudomonas, and Enterobacter in the silage negatively correlated with nitrate concentration and positively correlated with nitrate degradation (p < 0.05). Moreover, pH and ammonia-N were positively correlated with nitrate concentration and negatively correlated with nitrate degradation (p < 0.05). Overall, all silage had satisfactory fermentation quality, and the silage with HD and NT had better fermentation quality and higher nitrate degradation. The bacterial communities in all silages were dominated by Lactobacillus. The nitrate degradation during the fermentation process might be related to the fermentation quality and the activity of Pantoea, Pseudomonas, and Enterobacter in silage.
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Affiliation(s)
- Chunsheng Bai
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Gang Pan
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Ruoxuan Leng
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Wenhua Ni
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Jiyun Yang
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Juanjuan Sun
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot, China
| | - Zhu Yu
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Zhigang Liu
- Inner Mongolia Sihai Agriculture and Animal Husbandry Technology Co., Ltd., Baochang, China
| | - Yanlin Xue
- Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
- Inner Mongolia Key Laboratory of Microbial Ecology of Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
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41
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Zong C, Wu Q, Dong Z, Wu A, Wu J, Shao T, Liu Q. Recycling deteriorated silage to remove hazardous mycotoxins and produce a value-added product. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127627. [PMID: 34740509 DOI: 10.1016/j.jhazmat.2021.127627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/15/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Silage, an important forage feed, contains hazardous mycotoxins due to spoilage caused by unreasonable management. Deteriorated silage becomes a mycotoxin source and threatens human health and the eco-environment. Recycling deteriorated silage and exploiting beneficial substances would be profitable and environmentally friendly. Squalene [60.3-73.9 mg/kg fresh matter (FM)] and 6 types of mycotoxins (4.56-10,080 ug/kg FM) were found in deteriorated silages. To clarify the source and synthesis mechanism of squalene, alfalfa was ensiled at low temperature (LT, 3-20 ℃), 25 ℃ (T25), 30 ℃ (T30) or 35 ℃ (T35) for 10, 40 and 70 d. The highest squalene was detected when alfalfa ensiled for 40 d (P = 0.033) or ensiled at LT and T30 (P < 0.001). Squalene source was traced as lactic acid bacteria (LAB) using next-generation sequencing. Multiple linear regression models inferred that squalene synthase of LAB positively contributed to the squalene synthesis but was negatively adjusted by ammonia-N during ensiling. Two promising squalene-producing LAB strains were screened from alfalfa silage, which fermented deteriorated silage to enhanced squalene yield (190~279 mg/L) with low cost and high mycotoxin removal ratios (up to 85.5%). Therefore, the environmentally friendly strategy of recycling deteriorated silage to produce beneficial squalene was created.
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Affiliation(s)
- Cheng Zong
- Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Qifeng Wu
- Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Zhihao Dong
- Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Aili Wu
- Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Jinxin Wu
- Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Tao Shao
- Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Qinhua Liu
- Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China.
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Wang S, Shao T, Li J, Zhao J, Dong Z. A survey of fermentation parameters, bacterial community compositions and their metabolic pathways during the ensiling of sorghum. J Appl Microbiol 2022; 132:3563-3577. [DOI: 10.1111/jam.15484] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/26/2022] [Accepted: 02/07/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Siran Wang
- Institute of Ensiling and Processing of Grass, College of Agro‐Grassland Science Nanjing Agricultural University Nanjing China
| | - Tao Shao
- Institute of Ensiling and Processing of Grass, College of Agro‐Grassland Science Nanjing Agricultural University Nanjing China
| | - Junfeng Li
- Institute of Ensiling and Processing of Grass, College of Agro‐Grassland Science Nanjing Agricultural University Nanjing China
| | - Jie Zhao
- Institute of Ensiling and Processing of Grass, College of Agro‐Grassland Science Nanjing Agricultural University Nanjing China
| | - Zhihao Dong
- Institute of Ensiling and Processing of Grass, College of Agro‐Grassland Science Nanjing Agricultural University Nanjing China
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Shi H, Yang E, Yang H, Huang X, Zheng M, Chen X, Zhang J. Dynamic changes in the chemical composition and metabolite profiles of drumstick (Moringa oleifera Lam.) leaf flour during fermentation. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jung JS, Ravindran B, Soundharrajan I, Awasthi MK, Choi KC. Improved performance and microbial community dynamics in anaerobic fermentation of triticale silages at different stages. BIORESOURCE TECHNOLOGY 2022; 345:126485. [PMID: 34871725 DOI: 10.1016/j.biortech.2021.126485] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/27/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
Production of high-quality grass-based silages by microbial-mediated anaerobic fermentation is an effective strategy in livestock farms. In the present study, an ensiling process was used to preserve and enhance fermentative metabolites in triticale silages with novel inoculants of Lactobacillus rhamanosus -52 and, Lactobacillus rhamanosus-54. Triticale silages treated with LAB predominantly had lower pH values than control silages due to rapid changes of microbial counts. LAB addition improved anaerobic fermentation profiles showing higher lactic acid, but lower acetic acid and butyric acid concentrations. A background microbial dynamic study indicated that the addition of L. rhamanosus-52 and L. rhamanosus-54 improved silage fermentation, enriched Lactobacillus spp., and decreased microbial richness with diversity, leading to increased efficiency of lactic acid fermentation. In conclusion, LAB treatment can increase silage quality by enhancing the dominance of desirable Lactobacillus while inhibiting the growth of undesirable microbes.
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Affiliation(s)
- Jeong Sung Jung
- Grassland and Forage Division, National Institute of Animal Science, RDA, 31000, Republic of Korea
| | - Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University Youngtong-Gu, Suwon, Gyeonggi-Do 16227, Republic of Korea
| | - Ilavenil Soundharrajan
- Grassland and Forage Division, National Institute of Animal Science, RDA, 31000, Republic of Korea
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Taicheng Road 3#, Yangling, Shaanxi 712100, PR China
| | - Ki Choon Choi
- Grassland and Forage Division, National Institute of Animal Science, RDA, 31000, Republic of Korea.
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Xiang Q, Zhang J, Huang X, Ma M, Zhao K, Yu X, Chen Q, Zhang X, Penttinen P, Gu Y. Changes in the taxonomic and functional structure of microbial communities during vegetable waste mixed silage fermentation. Can J Microbiol 2022; 68:281-293. [PMID: 35030056 DOI: 10.1139/cjm-2021-0059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Silage fermentation, a sustainable way to use vegetable waste resources, is a complex process driven by a variety of microorganisms. We used lettuce waste as the main raw material for silage, analyzed changes in the physico-chemical characteristics and bacterial community composition of silage over a 60-day fermentation, identified differentially abundant taxa, predicted the functional profiles of bacterial communities, and determined the associated effects on the quality of silage. The biggest changes occurred in the early stage of silage fermentation. Changes in the physico-chemical characteristics included a decrease in pH and increases in ammonia nitrogen to total nitrogen ratio and lactic acid content. The numbers of lactic acid bacteria (LAB) increased and molds, yeasts and aerobic bacteria decreased. The bacterial communities and their predicted functions on day 0 were clearly different from those on day 7 to day 60. The relative abundances of phylum Firmicutes and genus Lactobacillus increased. Nitrite ammonification and nitrate ammonification were more prevalent after day 0. The differences in the predicted functions were associated with differences in pH and amino acid, protein, carbohydrate, NH3-N, ether extract and crude ash contents.
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Affiliation(s)
- Quanju Xiang
- Sichuan Agricultural University - Chengdu Campus, 506176, College of Resource, No.211, Huimin Road, Wenjiang District, Chengdu, Sichuan, China, 611130;
| | - Juntao Zhang
- Sichuan Agricultural University, 12529, Department of Microbiology, Chengdu, China;
| | - Xiying Huang
- Sichuan Agricultural University, 12529, Department of Microbiology, Chengdu, China;
| | - Menggen Ma
- Sichuan Agricultural University - Chengdu Campus, 506176, College of Resource, No. 211 Huimin Road, Chengdu, Sichuan, China, 611130;
| | - Ke Zhao
- Sichuan Agricultural University, 12529, Yaan, Sichuan, China;
| | - Xiumei Yu
- Sichuan Agricultural University, 12529, Yaan, Sichuan, China;
| | - Qiang Chen
- Sichuan Agricultural University - Chengdu Campus, 506176, College of Resource, No. 211 huimin Road, Wenjiang district, Chengdu, Sichuan, Chengdu, Sichuan, China, 611130;
| | - Xiaoping Zhang
- Sichuan Agricultural University, 12529, Yaan, Sichuan, China;
| | - Petri Penttinen
- Sichuan Agricultural University, 12529, Department of Microbiology, Chengdu, China;
| | - Yunfu Gu
- Sichuan Agricultural University - Chengdu Campus, 506176, College of Resource, Huimin road 211#, Chengdu, Sichuan, China, 611130;
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Wang S, Li J, Zhao J, Dong Z, Shao T. An investigation of fermentative profile, microbial numbers, bacterial community diversity and their predicted metabolic characteristics in Sudangrass ( Sorghum sudanense Stapf.) silages. Anim Biosci 2022; 35:1162-1173. [PMID: 34991212 PMCID: PMC9262718 DOI: 10.5713/ab.21.0326] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 11/29/2021] [Indexed: 11/27/2022] Open
Abstract
Objective This study aimed to investigate the fermentation profiles, bacterial community and predicted metabolic characteristics of Sudangrass (Sorghum sudanense Stapf.) during ensiling. Methods First-cutting Sudangrass was harvested at the vegetative stage and ensiled in laboratory-scale silos (1 L capacity). Triplicate silos were sampled after 1, 3, 7, 15, 30, and 60 days of ensiling, respectively. The bacterial communities on day 3 and 60 were assessed through high-throughput sequencing technology, and 16S rRNA-gene predicted functional profiles were analyzed according to the Kyoto encyclopedia of genes and genomes using Tax4Fun. Results The Sudangrass silages showed good fermentation quality, indicated by higher lactic acid contents, and lower pH, butyric acid and ammonia nitrogen contents. The dominant genus Lactococcus on day 3 was replaced by Lactobacillus on day 60. The metabolism of amino acid, energy, cofactors and vitamins was restricted, and metabolism of nucleotide and carbohydrate was promoted after ensiling. The 1-phosphofructokinase and pyruvate kinase of bacterial community seemed to play important roles in stimulating the lactic acid fermentation, and the promotion of arginine deiminase could help lactic acid bacteria to tolerate the acidic environment. Conclusion High-throughput sequencing technology combined with 16S rRNA gene-predicted functional analyses revealed the differences during the early and late stages of Sudangrass ensiling not only for distinct bacterial community but also for specific functional metabolites. The results could provide a comprehensive insight into bacterial community and metabolic characteristics to further improve the silage quality.
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Ahmed MA, Rafii MY, Ain Izzati MZN, Khalilah AK, Awad EA, Kaka U, Chukwu SC, Liang JB, Sazili AQ. Biological additives improved qualities, in vitro gas production kinetics, digestibility, and rumen fermentation characteristics of different varieties of rice straw silage. ANIMAL PRODUCTION SCIENCE 2022. [DOI: 10.1071/an21375] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhao G, Wu H, Li L, He J, Hu Z, Yang X, Xie X. Effects of applying cellulase and starch on the fermentation characteristics and microbial communities of Napier grass ( Pennisetum purpureum Schum.) silage. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 63:1301-1313. [PMID: 34957445 PMCID: PMC8672258 DOI: 10.5187/jast.2021.e107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/06/2021] [Accepted: 09/19/2021] [Indexed: 11/29/2022]
Abstract
This study investigated the effects of applying cellulase and starch on the
fermentation characteristics and microbial communities of Napier grass silage
after ensiling for 30 d. Three groups were studied: No additives (control);
added cellulase (Group 1); and added cellulase and starch (Group 2). The results
showed that the addition of cellulase and starch decreased the crude protein
(CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and pH
significantly (p < 0.05) and increased water-soluble
carbohydrate (WSC) content (p < 0.05). The addition of
additives in two treated groups exerted a positive effect on the lactic acid
(LA) content, lactic acid bacteria (LAB) population, and lactic acid / acetic
acid (LA/AA) ratio, even the changes were not significant (p
> 0.05). Calculation of Flieg’s scores indicated that cellulase
application increased silage quality to some extent, while the application of
cellulase and starch together significantly improved fermentation
(p < 0.05). Compared with the control, both additive
groups showed increased microbial diversity after ensiling with an abundance of
favorable bacteria including Firmicutes and Weissella, and the
bacteria including Proteobacteria, Bacteroidetes, Acinetobacter
increased as well. For alpha diversity analysis, the combined application of
cellulase and starch in Group 2 gave significant increases in all indices
(p < 0.05). The study demonstrated that the
application of cellulase and starch can increase the quality of Napier grass
preserved as silage.
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Affiliation(s)
- Guoqiang Zhao
- Ruminant Product Research and Development Department, Guangdong VTR Bio-Tech, Zhuhai 519060, China
| | - Hao Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Li Li
- Ruminant Product Research and Development Department, Guangdong VTR Bio-Tech, Zhuhai 519060, China
| | - Jiajun He
- Ruminant Product Research and Development Department, Guangdong VTR Bio-Tech, Zhuhai 519060, China
| | - Zhichao Hu
- Ruminant Product Research and Development Department, Guangdong VTR Bio-Tech, Zhuhai 519060, China
| | - Xinjian Yang
- Ruminant Product Research and Development Department, Guangdong VTR Bio-Tech, Zhuhai 519060, China
| | - Xiangxue Xie
- Ruminant Product Research and Development Department, Guangdong VTR Bio-Tech, Zhuhai 519060, China
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Fan X, Zhao S, Yang F, Wang Y, Wang Y. Effects of Lactic Acid Bacterial Inoculants on Fermentation Quality, Bacterial Community, and Mycotoxins of Alfalfa Silage under Vacuum or Nonvacuum Treatment. Microorganisms 2021; 9:microorganisms9122614. [PMID: 34946214 PMCID: PMC8703462 DOI: 10.3390/microorganisms9122614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/06/2021] [Accepted: 12/16/2021] [Indexed: 11/18/2022] Open
Abstract
To investigate the effects of lactic acid bacterial (LAB) inoculants and vacuuming on the fermentation quality and bacterial community, alfalfas were ensiled with or without a commercial LAB YX or Lactobacillus plantarum strain ZZUA493 for 10, 30, 60, and 90 days while undergoing either vacuum (V) or nonvacuum (NV) treatment. At 90 days, analysis of the microbial community by high-throughput sequencing was performed, and contents of aflatoxin B1 and deoxynivalenol (DON) mycotoxins in alfalfa silage were determined. In all inoculated alfalfa silage, irrespective of V or NV treatment, lactic acid (LA) content increased, pH (p < 0.05), and ammonia nitrogen (p < 0.05) content decreased, and no butyric acid was detected. Lactobacillus or Pediococcus became the dominant genus, and the abundance of Garciella decreased in alfalfa silage with the addition of either inoculant. The LAB inoculants YX and ZZUA493 helped reduce the mycotoxin content in alfalfa silage. The abundance of Garciella in the control and DON content in all alfalfa silage groups were higher (p < 0.05) in NV than V. In summary, LAB inoculants and vacuuming had a positive influence on alfalfa silage quality, and LAB inoculants were effective in reducing mycotoxins in silage alfalfa.
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Affiliation(s)
- Xiaomiao Fan
- Henan Key Laboratory of Ion Beam Bio-Engineering, College of Physics, Zhengzhou University, Zhengzhou 450000, China; (X.F.); (S.Z.); (F.Y.); (Y.W.)
- Henan Key Laboratory of Ion Beam Bio-Engineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450000, China
| | - Shanshan Zhao
- Henan Key Laboratory of Ion Beam Bio-Engineering, College of Physics, Zhengzhou University, Zhengzhou 450000, China; (X.F.); (S.Z.); (F.Y.); (Y.W.)
- Henan Key Laboratory of Ion Beam Bio-Engineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450000, China
| | - Fengyuan Yang
- Henan Key Laboratory of Ion Beam Bio-Engineering, College of Physics, Zhengzhou University, Zhengzhou 450000, China; (X.F.); (S.Z.); (F.Y.); (Y.W.)
- Henan Key Laboratory of Ion Beam Bio-Engineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450000, China
| | - Yuan Wang
- Henan Key Laboratory of Ion Beam Bio-Engineering, College of Physics, Zhengzhou University, Zhengzhou 450000, China; (X.F.); (S.Z.); (F.Y.); (Y.W.)
- Henan Key Laboratory of Ion Beam Bio-Engineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450000, China
| | - Yanping Wang
- Henan Key Laboratory of Ion Beam Bio-Engineering, College of Physics, Zhengzhou University, Zhengzhou 450000, China; (X.F.); (S.Z.); (F.Y.); (Y.W.)
- Henan Key Laboratory of Ion Beam Bio-Engineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450000, China
- State Key Laboratory of Cotton Biology, School of Agricultural Science, Zhengzhou University, Zhengzhou 450000, China
- Correspondence: ; Tel.: +86-0371-67761726
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Wang S, Li J, Zhao J, Dong Z, Shao T. Effect of storage time on the fermentation quality, bacterial community structure and metabolic profiles of napiergrass (Pennisetum purpureum Schum.) silage. Arch Microbiol 2021; 204:22. [DOI: 10.1007/s00203-021-02658-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 09/23/2021] [Accepted: 10/11/2021] [Indexed: 10/19/2022]
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