1
|
Guo W, Liu T, Wang W, Yu Y, Neves ALA, Zhou M, Chen X. Survey of the fecal microbiota of indigenous small ruminants living in different areas of Guizhou. Front Microbiol 2024; 15:1415230. [PMID: 39176283 PMCID: PMC11340823 DOI: 10.3389/fmicb.2024.1415230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 07/22/2024] [Indexed: 08/24/2024] Open
Abstract
Introduction Gut microbiota are associated with the health and performance of ruminant species, and they are affected by altitude, host genetics, and sex. However, there has been little research on comparing the fecal microbiota of indigenous small ruminants such as sheep and goats in Guizhou province, China. In the present study, we revealed the effect of altitude, genetics, and sex on fecal microbiota profiles and enterotypes in indigenous small ruminants of Guizhou province, China. Methods Fecal samples were collected from Hei and Qianbei Ma goats and Weining sheep in the Chinese province of Guizhou. 16S rRNA gene sequencing targeting the V3-V4 region was performed using the Illumina MiSeq platform. Sequences were processed using QIIME2, and the qualified sequences were processed using the plugin DADA2 to generate amplicon sequence variants (ASVs). The statistical analysis was performed using R studio. Results The fecal microbial profile was found to vary by herd (influenced by genetics/altitude) and sex. All samples were categorized into two enterotypes. The first enterotype is dominated by UCG-005, and the second enterotype is dominated by the Christensenellaceae_R-7_group, which may be highly driven by the host's genetics (breed). The predicted functional profiles of the fecal microbiota were also assigned to two clusters that corresponded exactly to the enterotypes. Cluster 1 of the functional profiling was characterized by biosynthesis pathways, and cluster 2 was characterized by energy metabolism pathways. Discussion Our findings may provide new insights into the fecal microbial community and enterotypes in small ruminants by herds, offering clues for understanding the mechanisms by which the fecal microbiota contribute to divergent host phenotypes in indigenous small ruminants in Guizhou.
Collapse
Affiliation(s)
- Wei Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang, China
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Tingmei Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang, China
| | - Weiwei Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang, China
| | - Yinshu Yu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang, China
| | - André Luis Alves Neves
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Mi Zhou
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Xiang Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang, China
| |
Collapse
|
2
|
Zhang S, Luo Y, Zhang K, Song Z, Ling L, Yu X, Sun Y, Li J, Xiang W, Wang X, Zhao J. Methylobacterium amylolyticum sp. nov. and Methylobacterium ligniniphilum sp. nov., isolated from soil. Int J Syst Evol Microbiol 2024; 74. [PMID: 39008351 DOI: 10.1099/ijsem.0.006457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Abstract
Two pink-pigmented bacteria, designated strains NEAU-140T and NEAU-KT, were isolated from field soil collected from Linyi, Shandong Province, PR China. Both isolates were aerobic, Gram-stain-negative, rod-shaped, and facultatively methylotrophic. 16S rRNA gene sequences analysis showed that these two strains belong to the genus Methylobacterium. Strain NEAU-140T exhibited high 16S rRNA gene sequence similarities to Methylobacterium radiotolerans NBRC 15690T (97.43 %) and Methylobacterium phyllostachyos NBRC 105206T (97.36 %). Strain NEAU-KT exhibited high 16S rRNA gene sequence similarities to M. phyllostachyos NBRC 105206T (99.00 %) and Methylobacterium longum DSM 23933T (98.72 %). A phylogenetic tree based on 16S rRNA gene sequences showed that strain NEAU-140T formed a clade with Methylobacterium aerolatum (95.94 %), Methylobacterium persicinum (95.66 %) and Methylobacterium komagatae (96.87 %), and strain NEAU-KT formed a cluster with M. phyllostachyos and M. longum. The predominant fatty acid in both strains was C18 : 1 ω7c. Both strains contained ubiquinone Q-10 as the only respiratory quinone. The polar lipid profiles of both strains contained diphosphatidylglycerol, phosphatidylethanolamine, and phosphatidylcholine. Whole-genome phylogeny showed that strains NEAU-140T and NEAU-KT formed a phyletic line with M. aerolatum, M. persicinum, Methylobacterium radiotolerans, Methylobacterium fujisawaense, Methylobacterium oryzae, Methylobacterium tardum, M. longum and M. phyllostachyos. The orthologous average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between strain NEAU-140T and its closely related strains were lower than 82.62 and 25.90 %, respectively. The ANI and dDDH values between strain NEAU-KT and its closely related strains were lower than 86.29 and 31.7 %, respectively. The genomic DNA G+C contents were 71.63 mol% for strain NEAU-140T and 69.08 mol% for strain NEAU-KT. On the basis of their phenotypic and phylogenetic distinctiveness and the results of dDDH and ANI hybridization, these two isolates represent two novel species within the genus Methylobacterium, for which the names Methylobacterium amylolyticum sp. nov. (type strain NEAU-140T=MCCC 1K08801T=DSM 110568T) and Methylobacterium ligniniphilum sp. nov. (type strain NEAU-KT=MCCC 1K08800T=DSM 110567T) are proposed.
Collapse
Affiliation(s)
- Shanshan Zhang
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Yanfang Luo
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Kun Zhang
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Zhengke Song
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Ling Ling
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Xiaoyan Yu
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Yanan Sun
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Jiaxin Li
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| | - Wensheng Xiang
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xiangjing Wang
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Junwei Zhao
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, College of Plant Protection, Northeast Agricultural University, Harbin 150030, PR China
| |
Collapse
|
3
|
Wang J, Zhang W, Wu C, Hong Y, Shen G, Wang W, Tang H, Mochidzuki K, Cui Z, Khan A, Wang W. Synergistic analysis of lignin degrading bacterial consortium and its application in rice straw fiber film. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172386. [PMID: 38604360 DOI: 10.1016/j.scitotenv.2024.172386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
Fiber film have received widespread attention due to its green friendliness. We can use microorganisms to degrade lignin in straw to obtain cellulose and make fiber films. Herein, a group of high-temperature (50 °C) lignin degrading bacterial consortium (LDH) was enriched and culture conditions for lignin degradation were optimized. Combined with high-throughput sequencing technology, the synergistic effect of LDH-composited bacteria was analyzed. Then LDH was used to treat rice straw for the bio-pulping experiment. The results showed that the lignin of rice straw was degraded 32.4 % by LDH at 50 °C for 10 d, and after the optimization of culture conditions, lignin degradation rate increased by 9.05 % (P < 0.001). The bacteria that compose in LDH can synergistically degrade lignin. Paenibacillus can encode all lignin-degrading enzymes present in the LDH. Preliminary tests of LDH in the pulping industry have been completed. This study is the first to use high temperature lignin degrading bacteria to fabricate fiber film.
Collapse
Affiliation(s)
- Jinghong Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, PR China; Key Laboratory of Low-Carbon Green Agriculture in Northeast China, Ministry of Agriculture and Rural Affairs, College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China; College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Wei Zhang
- Key Laboratory of Low-Carbon Green Agriculture in Northeast China, Ministry of Agriculture and Rural Affairs, College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Chenying Wu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yanhua Hong
- Key Laboratory of Low-Carbon Green Agriculture in Northeast China, Ministry of Agriculture and Rural Affairs, College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Guinan Shen
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Weiwei Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Hongzhi Tang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Kazuhiro Mochidzuki
- A-ESG Science and Technology Research Center, Hiroshima University, Hiroshima 7398527, Japan
| | - Zongjun Cui
- College of Agronomy, China Agricultural University, Beijing 100094, PR China
| | - Aman Khan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, PR China
| | - Weidong Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, PR China; Key Laboratory of Low-Carbon Green Agriculture in Northeast China, Ministry of Agriculture and Rural Affairs, College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China; College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China.
| |
Collapse
|
4
|
Li M, Yao J, Wang Y, Sunahara G, Duran R, Liu J, Liu B, Liu H, Ma B, Li H, Pang W, Cao Y. Contrasting response strategies of sulfate-reducing bacteria in a microbial consortium to As 3+ stress under anaerobic and aerobic environments. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133052. [PMID: 38056257 DOI: 10.1016/j.jhazmat.2023.133052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/05/2023] [Accepted: 11/19/2023] [Indexed: 12/08/2023]
Abstract
The sulfate-reducing efficiency of sulfate-reducing bacteria (SRB) is strongly influenced by the presence of oxygen, but little is known about the oxygen tolerance mechanism of SRB and the effect of oxygen on the metalliferous immobilization by SRB. The performance evaluation, identification of bioprecipitates, and microbial and metabolic process analyses were used here to investigate the As3+ immobilization mechanisms and survival strategies of the SRB1 consortium under different oxygen-containing environments. Results indicated that the sulfate reduction efficiency was significantly decreased under aerobic (47.37%) compared with anaerobic conditions (66.72%). SEM analysis showed that under anaerobic and aerobic conditions, the morphologies of mineral particles were different, whereas XRD and XPS analyses showed that the most of As3+ bioprecipitates under both conditions were arsenic minerals such as AsS and As4S4. The abundances of Clostridium_sensu_stricto_1, Desulfovibrio, and Thiomonas anaerobic bacteria were significantly higher under anaerobic than aerobic conditions, whereas the aerobic Pseudomonas showed an opposite trend. Network analysis revealed that Desulfovibrio was positively correlated with Pseudomonas. Metabolic process analysis confirmed that under aerobic conditions the SRB1 consortium generated additional extracellular polymeric substances (rich in functionalities such as Fe-O, SO, CO, and -OH) and the anti-oxidative enzyme superoxide dismutase to resist As3+ stress and oxygen toxicity. New insights are provided here into the oxygen tolerance and detoxification mechanism of SRB and provide a basis for the future remediation of heavy metal(loid)-contaminated environments.
Collapse
Affiliation(s)
- Miaomiao Li
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Jun Yao
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China.
| | - Yating Wang
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Geoffrey Sunahara
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China; Department of Natural Resource Sciences, McGill University, 21111 Lakeshore Drive, Ste-Anne-de-Bellevue, Quebec H9X 3V9, Canada
| | - Robert Duran
- Université de Pau et des Pays de l'Adour, UPPA/E2S, IPREM CNRS, 5254 Pau, France
| | - Jianli Liu
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Bang Liu
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China; Université de Pau et des Pays de l'Adour, UPPA/E2S, IPREM CNRS, 5254 Pau, France
| | - Houquan Liu
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Bo Ma
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Hao Li
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Wancheng Pang
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Ying Cao
- Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, Beijing 100083, China
| |
Collapse
|
5
|
Zhao S, Deng D, Wan T, Feng J, Deng L, Tian Q, Wang J, Aiman UE, Mukhaddi B, Hu X, Chen S, Qiu L, Huang L, Wei Y. Lignin bioconversion based on genome mining for ligninolytic genes in Erwinia billingiae QL-Z3. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:25. [PMID: 38360683 PMCID: PMC10870720 DOI: 10.1186/s13068-024-02470-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/02/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Bioconversion of plant biomass into biofuels and bio-products produces large amounts of lignin. The aromatic biopolymers need to be degraded before being converted into value-added bio-products. Microbes can be environment-friendly and efficiently degrade lignin. Compared to fungi, bacteria have some advantages in lignin degradation, including broad tolerance to pH, temperature, and oxygen and the toolkit for genetic manipulation. RESULTS Our previous study isolated a novel ligninolytic bacterial strain Erwinia billingiae QL-Z3. Under optimized conditions, its rate of lignin degradation was 25.24% at 1.5 g/L lignin as the sole carbon source. Whole genome sequencing revealed 4556 genes in the genome of QL-Z3. Among 4428 protein-coding genes are 139 CAZyme genes, including 54 glycoside hydrolase (GH) and 16 auxiliary activity (AA) genes. In addition, 74 genes encoding extracellular enzymes are potentially involved in lignin degradation. Real-time PCR quantification demonstrated that the expression of potential ligninolytic genes were significantly induced by lignin. 8 knock-out mutants and complementary strains were constructed. Disruption of the gene for ELAC_205 (laccase) as well as EDYP_48 (Dyp-type peroxidase), ESOD_1236 (superoxide dismutase), EDIO_858 (dioxygenase), EMON_3330 (monooxygenase), or EMCAT_3587 (manganese catalase) significantly reduced the lignin-degrading activity of QL-Z3 by 47-69%. Heterologously expressed and purified enzymes further confirmed their role in lignin degradation. Fourier transform infrared spectroscopy (FTIR) results indicated that the lignin structure was damaged, the benzene ring structure and groups of macromolecules were opened, and the chemical bond was broken under the action of six enzymes encoded by genes. The abundant enzymatic metabolic products by EDYP_48, ELAC_205 and ESOD_1236 were systematically analyzed via liquid chromatography-mass spectrometry (LC-MS) analysis, and then provide a speculative pathway for lignin biodegradation. Finally, The activities of ligninolytic enzymes from fermentation supernatant, namely, LiP, MnP and Lac were 367.50 U/L, 839.50 U/L, and 219.00 U/L by orthogonal optimization. CONCLUSIONS Our findings provide that QL-Z3 and its enzymes have the potential for industrial application and hold great promise for the bioconversion of lignin into bioproducts in lignin valorization.
Collapse
Affiliation(s)
- Shuting Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Dongtao Deng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Tianzheng Wan
- Vrije University Amsterdam, De Boelelaan 1105, 1081 HV, Amsterdam, Netherlands
| | - Jie Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Lei Deng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Qianyi Tian
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Jiayu Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Umm E Aiman
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Balym Mukhaddi
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Xiaofeng Hu
- Shanghai Personal Biotechnology Co., Ltd, Shanghai, 20030, People's Republic of China
| | - Shaolin Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Ling Qiu
- College of Mechanical and Electronic Engineering, The West Scientific Observing and Experimental Station of Rural Renewable Energy Exploitation and Utilization of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Lili Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
| | - Yahong Wei
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Biomass Energy Center for Arid and Semi-Arid Lands, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
| |
Collapse
|
6
|
Dong W, Zhou R, Li X, Yan H, Zheng J, Peng N, Zhao S. Effect of simplified inoculum agent on performance and microbiome during cow manure-composting at industrial-scale. BIORESOURCE TECHNOLOGY 2024; 393:130097. [PMID: 38013035 DOI: 10.1016/j.biortech.2023.130097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 11/29/2023]
Abstract
A simplified inoculum agent, only comprising Bacillus subtilis and Aspergillus niger, was utilized for industrial-scale cow-manure composting to investigate its impact on composting performance and microbiome. Inoculants elevated the average and peak temperatures by up to 7 and 10 °C, respectively, during the thermophilic stage, reduced organic matter content, and raised germination index. Inoculation also extended the period of composting above 50 °C from 12 to 26 days. Sequencing unveiled significant shifts in microbial diversity, composition, and function. Aspergillus thrived during the mesophilic phase, potentially initiating composting, whereas Bacillus, Lysinibacillus, and Clostridium were enriched during the thermophilic stage. Metagenomic sequencing revealed an increased abundance of carbohydrate-active enzymes and glycometabolism-related genes responsible for lignocellulose degradation and heat generation after inoculation. These enriched microbes and functional genes contributed to organic matter degradation and temperature maintenance during thermophilic stage, expediting composting. This suggests the effectiveness of this simplified inoculum in industrial-level cow-manure composting.
Collapse
Affiliation(s)
- Weiwei Dong
- National Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; College of Life Sciences, Hubei Normal University, Huangshi 435002, China
| | - Rui Zhou
- National Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; BGI Genomics, Shenzhen 518083, China; Clin Lab, BGI Genomics, Wuhan 430074, China
| | - Xudong Li
- National Key Laboratory of Agricultural Microbiology, Hubei Key Laboratory of Agricultural Bioinformatics, Huazhong Agricultural University, Wuhan, 430070, China
| | - Hua Yan
- Jiangsu Sweeper Biotechnology, Nanjing 211800, China
| | - Jinshui Zheng
- National Key Laboratory of Agricultural Microbiology, Hubei Key Laboratory of Agricultural Bioinformatics, Huazhong Agricultural University, Wuhan, 430070, China
| | - Nan Peng
- National Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shumiao Zhao
- National Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
7
|
Gu J, Qiu Q, Yu Y, Sun X, Tian K, Chang M, Wang Y, Zhang F, Huo H. Bacterial transformation of lignin: key enzymes and high-value products. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:2. [PMID: 38172947 PMCID: PMC10765951 DOI: 10.1186/s13068-023-02447-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/08/2023] [Indexed: 01/05/2024]
Abstract
Lignin, a natural organic polymer that is recyclable and inexpensive, serves as one of the most abundant green resources in nature. With the increasing consumption of fossil fuels and the deterioration of the environment, the development and utilization of renewable resources have attracted considerable attention. Therefore, the effective and comprehensive utilization of lignin has become an important global research topic, with the goal of environmental protection and economic development. This review focused on the bacteria and enzymes that can bio-transform lignin, focusing on the main ways that lignin can be utilized to produce high-value chemical products. Bacillus has demonstrated the most prominent effect on lignin degradation, with 89% lignin degradation by Bacillus cereus. Furthermore, several bacterial enzymes were discussed that can act on lignin, with the main enzymes consisting of dye-decolorizing peroxidases and laccase. Finally, low-molecular-weight lignin compounds were converted into value-added products through specific reaction pathways. These bacteria and enzymes may become potential candidates for efficient lignin degradation in the future, providing a method for lignin high-value conversion. In addition, the bacterial metabolic pathways convert lignin-derived aromatics into intermediates through the "biological funnel", achieving the biosynthesis of value-added products. The utilization of this "biological funnel" of aromatic compounds may address the heterogeneous issue of the aromatic products obtained via lignin depolymerization. This may also simplify the separation of downstream target products and provide avenues for the commercial application of lignin conversion into high-value products.
Collapse
Affiliation(s)
- Jinming Gu
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Qing Qiu
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Yue Yu
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Xuejian Sun
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Kejian Tian
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Menghan Chang
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Yibing Wang
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Fenglin Zhang
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China
| | - Hongliang Huo
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun, 130117, China.
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, Changchun, 130117, China.
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Changchun, 130117, China.
| |
Collapse
|
8
|
Silva LDC, Bernardelli JKB, Souza ADO, Lafay CBB, Nagalli A, Passig FH, Kreutz C, Carvalho KQD. Biodegradation and sorption of nutrients and endocrine disruptors in a novel concrete-based substrate in vertical-flow constructed wetlands. CHEMOSPHERE 2024; 346:140531. [PMID: 37918529 DOI: 10.1016/j.chemosphere.2023.140531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023]
Abstract
Removing phosphorus and endocrine-disruptors (EDC) is still challenging for low-cost sewage treatment systems. This study investigated the efficiency of three vertical-flow constructed wetlands (VFCW) vegetated with Eichhornia crassipes onto red clay (CW-RC), autoclaved aerated concrete (CW-AC), and composite from the chemical activation of autoclaved aerated concrete with white cement (CW-AAC) in the removal of organic matter, nutrients, and estrone, 17β-estradiol, and 17α-ethinylestradiol. The novelty aspect of this study is related to selecting these clay and cementitious-based materials in removing endocrine disruptors and nutrients in VFCW. The subsurface VFCW were operated in sequencing-batch mode (cycles of 48-48-72 h), treating synthetic wastewater for 308 days. The operation consisted of Stages I and II, different by adding EDC in Stage II. The presence of EDC increased the competition for dissolved oxygen (DO) and reduced the active sites available for adsorption, diminishing the removal efficiencies of TKN and TAN and total phosphorus in the systems. CW-RC showed a significant increase in COD removal from 65% to 91%, while CW-AC and CW-AAC maintained stable COD removal (84%-82% and 78%-81%, respectively). Overall, the substrates proved effective in removing EDC, with CW-AC and CW-AAC achieving >60% of removal. Bacteria Candidatus Brocadia and Candidatus Jettenia, responsible for carrying out the Anammox process, were identified in assessing the microbial community structure. According to the mass balance analysis, adsorption is the main mechanism for removing TP in CW-AC and CW-AAC, while other losses were predominant in CW-RC. Conversely, for TN removal, the adsorption is more representative in CW-RC, and the different metabolic routes of microorganisms, biofilm assimilation, and partial ammonia volatilization in CW-AC and CW-AAC. The results suggest that the composite AAC is the most suitable material for enhancing the simultaneous removal of organic matter, nutrients, and EDC in VFCW under the evaluated operational conditions.
Collapse
Affiliation(s)
- Lucas de Carvalho Silva
- Federal University of Technology - Paraná (UTFPR), Civil Engineering Graduate Program, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340. Curitiba, Paraná, Brazil.
| | - Jossy Karla Brasil Bernardelli
- Federal University of Technology - Paraná (UTFPR), Civil Engineering Graduate Program, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340. Curitiba, Paraná, Brazil.
| | - Adelania de Oliveira Souza
- Federal University of Technology - Paraná (UTFPR), Civil Engineering Graduate Program, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340. Curitiba, Paraná, Brazil.
| | - Cíntia Boeira Batista Lafay
- Federal University of Technology - Paraná (UTFPR), Chemistry Academic Department. Via do Conhecimento, s/n - Km 01, Fraron, 85503-390. Pato Branco, Paraná, Brazil.
| | - André Nagalli
- Federal University of Technology - Paraná (UTFPR), Civil Construction Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340. Curitiba, Paraná, Brazil.
| | - Fernando Hermes Passig
- Federal University of Technology - Paraná (UTFPR), Chemistry and Biology Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340. Curitiba, Paraná, Brazil.
| | - Cristiane Kreutz
- Federal University of Technology - Paraná (UTFPR), Environmental Academic Department, Rosalina Maria dos Santos St., 1233, 87301-899, Campo Mourão, Paraná, Brazil.
| | - Karina Querne de Carvalho
- Federal University of Technology - Paraná (UTFPR), Civil Construction Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340. Curitiba, Paraná, Brazil.
| |
Collapse
|
9
|
Singh Y, Sharma S, Kumar U, Sihag P, Balyan P, Singh KP, Dhankher OP. Strategies for economic utilization of rice straw residues into value-added by-products and prevention of environmental pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167714. [PMID: 37832665 DOI: 10.1016/j.scitotenv.2023.167714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/26/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023]
Abstract
Rice straw management, along with the prevalent practice of residue burning, poses multifaceted challenges with substantial environmental and human health implications. After harvest, a considerable amount of straw is left behind, often disposed of through burning, releasing several pollutants into the environment. Carbon dioxide (CO2) dominates at 70%, accompanied by methane (CH4) at 0.66%, carbon monoxide (CO) at 7%, and nitrous oxide (N2O) at 2.09%. This process further compounds issues by depleting soil nutrients like nitrogen and organic matter. This review focuses on strategies for residue management and using straw as value-added by-products. We address research gaps and offer potential recommendations for rice straw management using economically feasible and practical routes. We elaborate that to improve rice straw digestibility, utilization in mushroom cultivation, and other value-added products, low silica (Si) rice varieties must be developed using modern technologies including marker-assisted selection breeding or genome editing. Developing low Si rice could also reduce arsenic uptake by rice, as rice plants use the same transporters for the uptake of both elements. Conversely, silica is also indispensable for quality rice production; hence, optimizing silicon content in rice is worth investigating. More research is required to understand the extent of silicon's effect on the utilization of straw for various purposes. This review also discusses the importance of educating farmers about the straw burning issue and its environmental consequences. We highlight the significance of tailoring rice straw management methods to local suitability, moving away from a universal approach. More extension work is needed to encourage farmers to opt for environmentally and economically sound options for rice straw management. Policy intervention to incentivize farmers and develop technologies for the widespread use of rice straw for various industries and product development could help in the management of rice straw and will also create a circular economy.
Collapse
Affiliation(s)
- Yogita Singh
- Department of Molecular Biology & Biotechnology, College of Biotechnology, CCS Haryana Agricultural University, Hisar 125004, India
| | - Sudhir Sharma
- Stockbridge School of Agriculture, University of Massachusetts Amherst, MA 01003, USA
| | - Upendra Kumar
- Department of Molecular Biology & Biotechnology, College of Biotechnology, CCS Haryana Agricultural University, Hisar 125004, India; Department of Plant Science, Mahatma Jyotiba Phule Rohilkhand University, Bareilly-243006, India.
| | - Pooja Sihag
- Department of Molecular Biology & Biotechnology, College of Biotechnology, CCS Haryana Agricultural University, Hisar 125004, India
| | - Priyanka Balyan
- Department of Botany, Deva Nagri P.G. College, CCS University Meerut, 250001, India
| | - Krishna Pal Singh
- Biophysics Unit, College of Basic Sciences & Humanities, GB Pant University of Agriculture & Technology, Pantnagar 263145, India; Vice-Chancellor's Secretariat, Mahatma Jyotiba Phule Rohilkhand University, Bareilly 243001, India
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts Amherst, MA 01003, USA.
| |
Collapse
|
10
|
Scott CJR, Leadbeater DR, Oates NC, James SR, Newling K, Li Y, McGregor NGS, Bird S, Bruce NC. Whole genome structural predictions reveal hidden diversity in putative oxidative enzymes of the lignocellulose-degrading ascomycete Parascedosporium putredinis NO1. Microbiol Spectr 2023; 11:e0103523. [PMID: 37811978 PMCID: PMC10714830 DOI: 10.1128/spectrum.01035-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/22/2023] [Indexed: 10/10/2023] Open
Abstract
IMPORTANCE An annotated reference genome has revealed P. putredinis NO1 as a useful resource for the identification of new lignocellulose-degrading enzymes for biorefining of woody plant biomass. Utilizing a "structure-omics"-based searching strategy, we identified new potentially lignocellulose-active sequences that would have been missed by traditional sequence searching methods. These new identifications, alongside the discovery of novel enzymatic functions from this underexplored lineage with the recent discovery of a new phenol oxidase that cleaves the main structural β-O-4 linkage in lignin from P. putredinis NO1, highlight the underexplored and poorly represented family Microascaceae as a particularly interesting candidate worthy of further exploration toward the valorization of high value biorenewable products.
Collapse
Affiliation(s)
- Conor J. R. Scott
- Department of Biology, Centre for Novel Agricultural Products, University of York, York, United Kingdom
| | - Daniel R. Leadbeater
- Department of Biology, Centre for Novel Agricultural Products, University of York, York, United Kingdom
| | - Nicola C. Oates
- Department of Biology, Centre for Novel Agricultural Products, University of York, York, United Kingdom
| | - Sally R. James
- Department of Biology, Bioscience Technology Facility, University of York, York, United Kingdom
| | - Katherine Newling
- Department of Biology, Bioscience Technology Facility, University of York, York, United Kingdom
| | - Yi Li
- Department of Biology, Bioscience Technology Facility, University of York, York, United Kingdom
| | - Nicholas G. S. McGregor
- Department of Chemistry, York Structural Biology Laboratory, The University of York, York, United Kingdom
| | - Susannah Bird
- Department of Biology, Centre for Novel Agricultural Products, University of York, York, United Kingdom
| | - Neil C. Bruce
- Department of Biology, Centre for Novel Agricultural Products, University of York, York, United Kingdom
| |
Collapse
|
11
|
Chen J, Cai Y, Wang Z, Xu Z, Li J, Ma X, Zhuang W, Liu D, Wang S, Song A, Xu J, Ying H. Construction of a synthetic microbial community based on multiomics linkage technology and analysis of the mechanism of lignocellulose degradation. BIORESOURCE TECHNOLOGY 2023; 389:129799. [PMID: 37774801 DOI: 10.1016/j.biortech.2023.129799] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 10/01/2023]
Abstract
The efficient degradation of lignocellulose is a bottleneck for its integrated utilization. This research performed species analysis and made functional predictions in various ecosystems using multiomics coupling to construct a core synthetic microbial community with efficient lignocellulose degradation function. The synthetic microbial community was employed to degrade corn straw via solid-state fermentation. The degradation mechanisms were resolved using proteomics. The optimum culture conditions included 10% inoculum level (w/v), 4% nitrogen source ratio and a fermentation time of 23 d. Under these conditions, the degradation rates of cellulose, hemicellulose, and lignin were 34.91%, 45.94%, and 23.34%, respectively. Proteomic analysis revealed that lignin 1,4-β-xylanase, β-xylosidase and endo-1,4-β-xylanase were closely related to lignocellulose degradation. The metabolic pathways involved in lignocellulose degradation and the functional roles of eight strains were obtained. The synthesis of a microbial community via multiomics linkage technology can effectively decompose lignocellulose, which is useful for their further utilization.
Collapse
Affiliation(s)
- Jinmeng Chen
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China
| | - Yafan Cai
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China
| | - Zhi Wang
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China
| | - Zhengzhong Xu
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China
| | - Jia Li
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China
| | - Xiaotian Ma
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China
| | - Wei Zhuang
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China; National Engineering Technique Research Center for Biotechnology, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Dong Liu
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China; National Engineering Technique Research Center for Biotechnology, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Shilei Wang
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China.
| | - Andong Song
- College of Life Science, Henan Agricultural University, 218 Ping An Avenue, Zhengdong New District, Zhengzhou 450002, China
| | - Jingliang Xu
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China
| | - Hanjie Ying
- School of Chemical Engineering, Zhengzhou University, 100 Ke xue Dadao, Zhengzhou 450001, China; National Engineering Technique Research Center for Biotechnology, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, China
| |
Collapse
|
12
|
Ma W, Lin L, Peng Q. Origin, Selection, and Succession of Coastal Intertidal Zone-Derived Bacterial Communities Associated with the Degradation of Various Lignocellulose Substrates. MICROBIAL ECOLOGY 2023; 86:1589-1603. [PMID: 36717391 DOI: 10.1007/s00248-023-02170-5] [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: 09/29/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
Terrestrial microbial consortia were reported to play fundamental roles in the global carbon cycle and renewable energy production through the breakdown of complex organic carbon. However, we have a poor understanding of how biotic/abiotic factors combine to influence consortia assembly and lignocellulose degradation in aquatic ecosystems. In this study, we used 96 in situ lignocellulose enriched, coastal intertidal zone-derived bacterial consortia as the initial inoculating consortia and developed 384 cultured consortia under different lignocellulose substrates (aspen, pine, rice straw, and purified Norway spruce lignin) with gradients of salinity and temperature. As coastal consortia, salinity was the strongest driver for assembly, followed by Norway spruce lignin, temperature, and aspen. Moreover, a conceptual model was proposed to demonstrate different succession dynamics between consortia under herbaceous and woody lignocelluloses. The succession of consortium under Norway spruce lignin is greatly related with abiotic factors, while its substrate degradation is mostly correlated with biotic factors. A discrepant pattern was observed in the consortium under rice straw. Finally, we developed four groups of versatile, yet specific consortia. Our study not only reveals that coastal intertidal wetlands are important natural resources to enrich lignocellulolytic degrading consortia but also provides insights into the succession and ecological function of coastal consortium.
Collapse
Affiliation(s)
- Wenwen Ma
- Institute of Marine Science and Technology, Shandong University, Qingdao, 266237, Shandong, China
| | - Lu Lin
- Institute of Marine Science and Technology, Shandong University, Qingdao, 266237, Shandong, China.
| | - Qiannan Peng
- Institute of Marine Science and Technology, Shandong University, Qingdao, 266237, Shandong, China
| |
Collapse
|
13
|
Chen L, Qu Z, Yu W, Zheng L, Qiao H, Wang D, Wei B, Zhao Z. Comparative genomic and transcriptome analysis of Bacillus velezensis CL-4 fermented corn germ meal. AMB Express 2023; 13:10. [PMID: 36683079 PMCID: PMC9868226 DOI: 10.1186/s13568-023-01510-5] [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: 10/07/2022] [Accepted: 01/08/2023] [Indexed: 01/24/2023] Open
Abstract
Bacillus, an excellent organic-degrading agent, can degrade lignocellulose. Notably, some B. velezensis strains encode lignocellulases. However, their ability to degrade lignocellulose in fermented feed is not much appreciated. This study performed a comparative genomic analysis of twenty-three B. velezensis strains to find common carbohydrate-active enzymes (CAZymes) encoding genes and evaluated their potential to degrade lignocellulose. The comparative genomic and CAZyme database-based analyses identified several potential CAZymes genes that degrade cellulose (GH1, GH4, GH5, GH13, GH16, GH32, PL1, and PL9), hemicellulose (GH11, GH26, GH43, GH51, and CE3) and lignin (AA4, AA6, AA7, and AA10). Furthermore, Illumina RNA-seq transcriptome analysis revealed the expression of more than 1794 genes in B. velezensis CL-4 fermented corn germ meal at 48 h (FCGM 48 h). Gene ontology analysis of expressed genes revealed their enrichment in hydrolase activity (breaking the glycosyl bonds during carbohydrate metabolism), indicating the upregulation of CAZymes. In total, 58 differentially upregulated CAZymes-encoding genes were identified in FCGM 48 h compared to FCGM 0 h. The upregulated CAZymes-encoding genes were related to cellulose (6-phospho-β-galactosidase and 6-phospho-α-glucosidase), starch (α-glucosidase and α-amylase), pectin (pectin lyase), and hemicellulose (arabinan endo-1,5-α-L-arabinosidase, xylan 1,4-beta-xylosidase, α-N-arabinofuranosidase, and acetyl xylan esterase). Importantly, arabinoxylan degradation mainly occurred in FCGM 48 h, followed by partial degradation of cellulose, pectin, and starch. This study can support the development of enzymatic cocktails for the solid-state fermented feed (SFF).
Collapse
Affiliation(s)
- Long Chen
- grid.464388.50000 0004 1756 0215Institute of Animal Nutrition and Feed, Jilin Academy of Agricultural Sciences, No. 186 Dong Xinghua Street, Gongzhuling, 136100 Jilin China
| | - Zihui Qu
- grid.464388.50000 0004 1756 0215Institute of Animal Nutrition and Feed, Jilin Academy of Agricultural Sciences, No. 186 Dong Xinghua Street, Gongzhuling, 136100 Jilin China
| | - Wei Yu
- grid.464388.50000 0004 1756 0215Institute of Animal Nutrition and Feed, Jilin Academy of Agricultural Sciences, No. 186 Dong Xinghua Street, Gongzhuling, 136100 Jilin China
| | - Lin Zheng
- grid.464388.50000 0004 1756 0215Institute of Animal Nutrition and Feed, Jilin Academy of Agricultural Sciences, No. 186 Dong Xinghua Street, Gongzhuling, 136100 Jilin China
| | - Haixin Qiao
- Information Application Department, Jilin Intellectual Property Protection Center, Changchun, 130000 China
| | - Dan Wang
- grid.464388.50000 0004 1756 0215Institute of Animal Nutrition and Feed, Jilin Academy of Agricultural Sciences, No. 186 Dong Xinghua Street, Gongzhuling, 136100 Jilin China
| | - Bingdong Wei
- grid.464388.50000 0004 1756 0215Institute of Animal Nutrition and Feed, Jilin Academy of Agricultural Sciences, No. 186 Dong Xinghua Street, Gongzhuling, 136100 Jilin China
| | - Zijian Zhao
- grid.464388.50000 0004 1756 0215Institute of Agro-Food Technology, Jilin Academy of Agricultural Sciences, No. 1366 Cai Yu Street, Changchun, 130033 Jilin Province China
| |
Collapse
|
14
|
Rodriguez A, Hirakawa MP, Geiselman GM, Tran-Gyamfi MB, Light YK, George A, Sale KL. Prospects for utilizing microbial consortia for lignin conversion. FRONTIERS IN CHEMICAL ENGINEERING 2023. [DOI: 10.3389/fceng.2023.1086881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Naturally occurring microbial communities are able to decompose lignocellulosic biomass through the concerted production of a myriad of enzymes that degrade its polymeric components and assimilate the resulting breakdown compounds by members of the community. This process includes the conversion of lignin, the most recalcitrant component of lignocellulosic biomass and historically the most difficult to valorize in the context of a biorefinery. Although several fundamental questions on microbial conversion of lignin remain unanswered, it is known that some fungi and bacteria produce enzymes to break, internalize, and assimilate lignin-derived molecules. The interest in developing efficient biological lignin conversion approaches has led to a better understanding of the types of enzymes and organisms that can act on different types of lignin structures, the depolymerized compounds that can be released, and the products that can be generated through microbial biosynthetic pathways. It has become clear that the discovery and implementation of native or engineered microbial consortia could be a powerful tool to facilitate conversion and valorization of this underutilized polymer. Here we review recent approaches that employ isolated or synthetic microbial communities for lignin conversion to bioproducts, including the development of methods for tracking and predicting the behavior of these consortia, the most significant challenges that have been identified, and the possibilities that remain to be explored in this field.
Collapse
|
15
|
Tawfik A, M Azzam A, El-Dissouky A, Ibrahim AY, Nasr M. Synergistic effects of paper mill sludge and sulfonated graphene catalyst for maximizing bio-hydrogen harvesting from sugarcane bagasse de-polymerization. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116724. [PMID: 36372032 DOI: 10.1016/j.jenvman.2022.116724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
In this study, hydrogen harvesting from fermentation of sugarcane bagasse (SCB) was promoted by maintaining synergism between sulfonated graphene (SGR) catalyst and paper mill sludge (PMS). The sulfonic acid (-SO3H) groups in the catalyst played a major role in destructing the β-1,4 glycosidic bonds of sugarcane bagasse, releasing readily biodegradable sugars into the fermentation medium. The cellulose, hemicellulose, and lignin conversion efficiency were improved by 127.5%, 495.0%, and 109.2%, respectively with 20 mgSGR/gVS catalyst addition, compared with the control samples. These values were also higher than those obtained by non-sulfonated graphene catalyst. The hydrogenation of sugarcane bagasse was maximized at a sulfonated graphene catalyst dosage of 60 mgSGR/gVS, providing the highest hydrogen harvesting of 4104 ± 321 mL. This was associated with an increase of the Proteobacteria phyla up to 52.0%, Firmicutes phyla to 13.9%, and Acinetobacter sp. to 39.8% compared with only 37.0%, 11.3% and 11.1% in the control assay respectively. Moreover, sulfonated graphene catalyst supplementation promoted the acetate fermentation reaction pathway by increasing the acetate/butyrate ratio up to 4.1. Nevertheless, elevating the catalyst dosage up to 120 mgSGR/gVS reduced the hydrogen harvesting (1190 ± 92 mL) due to the release of furfural (1.76 ± 0.02 g/L) in the fermentation cultures, deteriorating the microbes' internal composition and metabolism bioactivities. Finally maximizing the hydrogen productivity from sugarcane bagasse is feasible by incorporation of paper mill sludge and sulfonated graphene catalyst at dosage not exceeding 60 mgSGR/gVS. However, investigating the recyclability and disposal of digestate containing sulfonated graphene catalyst and the associated economic feasibility needs more attention in the future.
Collapse
Affiliation(s)
- Ahmed Tawfik
- National Research Centre, Water Pollution Research Dept., 12622, Dokki, Cairo, Egypt.
| | - Ahmed M Azzam
- Environmental Research Department, Theodor Bilharz Research Institute (TBRI), Imbaba, Giza, P.O. Box 30, No. 12411, Egypt
| | - A El-Dissouky
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Aya Y Ibrahim
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mahmoud Nasr
- Sanitary Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, 21544, Egypt
| |
Collapse
|
16
|
Gupta A, Tiwari A, Ghosh P, Arora K, Sharma S. Enhanced lignin degradation of paddy straw and pine needle biomass by combinatorial approach of chemical treatment and fungal enzymes for pulp making. BIORESOURCE TECHNOLOGY 2023; 368:128314. [PMID: 36375698 DOI: 10.1016/j.biortech.2022.128314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Paddy straw (PS) and pine needles (PN) are one of the challenging biomasses in terms of disposal and compost making due to their high silica and tannin contents. Particulate air pollution, loss of biodiversity and respiratory impairments are some of disastrous outcomes caused by burning. However, high percentage of cellulose and hemicellulose makes them potential substrate for paper and pulp industries. The main aim of work was to study and utilize a combinatorial approach of weak chemical treatment and lignin degrading fungal species as agents of effective production of lignin modifying enzymes (LME's) for lignin depolymerisation from the biomasses. Phanerochaete chrysosporium was found to be the best degrader of lignin (47.11 % in PS + PN in 28 days) with maximum LME's production between 10th-17th days. Efficient lignin degradation in the PS and PN biomass will aid further application in pulp production supporting the transition to a circular economy in a greener way.
Collapse
Affiliation(s)
- Akansha Gupta
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Abhay Tiwari
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Pooja Ghosh
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Kalpana Arora
- Centre for Technology, Society of Economics and Social Science, India
| | - Satyawati Sharma
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| |
Collapse
|
17
|
Liu G, Han D, Yang S. Combinations of mild chemical and bacterial pretreatment for improving enzymatic saccharification of corn stover. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2022.2112910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Affiliation(s)
- Guoqing Liu
- Department of Food Engineering, College of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, P. R. China
| | - Dongjing Han
- Department of Food Engineering, College of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, P. R. China
| | - Shaohua Yang
- Department of Food Engineering, College of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, P. R. China
| |
Collapse
|
18
|
Wu Z, Peng K, Zhang Y, Wang M, Yong C, Chen L, Qu P, Huang H, Sun E, Pan M. Lignocellulose dissociation with biological pretreatment towards the biochemical platform: A review. Mater Today Bio 2022; 16:100445. [PMID: 36212906 PMCID: PMC9535326 DOI: 10.1016/j.mtbio.2022.100445] [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: 07/20/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 11/30/2022]
Abstract
Lignocellulose utilization has been gaining great attention worldwide due to its abundance, accessibility, renewability and recyclability. Destruction and dissociation of the cross-linked, hierarchical structure within cellulose hemicellulose and lignin is the key procedure during chemical utilization of lignocellulose. Of the pretreatments, biological treatment, which can effectively target the complex structures, is attractive due to its mild reaction conditions and environmentally friendly characteristics. Herein, we report a comprehensive review of the current biological pretreatments for lignocellulose dissociation and their corresponding degradation mechanisms. Firstly, we analyze the layered, hierarchical structure of cell wall, and the cross-linked network between cellulose, hemicellulose and lignin, then highlight that the cracking of β-aryl ether is considered the key to lignin degradation because of its dominant position. Secondly, we explore the effect of biological pretreatments, such as fungi, bacteria, microbial consortium, and enzymes, on substrate structure and degradation efficiency. Additionally, combining biological pretreatment with other methods (chemical methods and catalytic materials) may reduce the time necessary for the whole process, which also help to strengthen the lignocellulose dissociation efficiency. Thirdly, we summarize the related applications of lignocellulose, such as fuel production, chemicals platform, and bio-pulping, which could effectively alleviate the energy pressure through bioconversion into high value-added products. Based on reviewing of current progress of lignocellulose pretreatment, the challenges and future prospects are emphasized. Genetic engineering and other technologies to modify strains or enzymes for improved biotransformation efficiency will be the focus of future research.
Collapse
Affiliation(s)
- Zengyou Wu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Kun Peng
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yin Zhang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Mei Wang
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Cheng Yong
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Ling Chen
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Ping Qu
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Hongying Huang
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Enhui Sun
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
- College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Pietermaritzburg Campus), Private Bag X01, Scottsville, 3209, South Africa
- Corresponding author. Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Mingzhu Pan
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
- Corresponding author.
| |
Collapse
|
19
|
Yang H, Huang Y, Li K, Zhu P, Wang Y, Li X, Meng Q, Niu Q, Wang S, Li Q. Lignocellulosic depolymerization induced by ionic liquids regulating composting habitats based on metagenomics analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:76298-76309. [PMID: 35668255 DOI: 10.1007/s11356-022-21148-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
The application of ionic liquids with sawdust and fresh dairy manure was studied in composting. The degradation of organic matter (OM), dissolved organic matter (DOM), and lignocellulose was analyzed. The DOM decreased by 14.25 mg/g and 11.11 mg/g in experimental group (ILs) and control group (CK), respectively. OM decreased by 7.32% (CK) and 8.91% (ILs), respectively. The degradation rates of hemicellulose, lignin, and cellulose in ILs (56.62%, 42.01%, and 23.97%) were higher than in CK (38.39%, 39.82%, and 16.04%). Microbial community and carbohydrate-active enzymes (CAZymes) were analyzed based on metagenomics. Metagenomic analysis results showed that ionic liquids enriched Actinobacteria and Proteobacteria in composting. Compared with CK, the total abundance values of GH11, GH6, AA6, and AA3_2 in ILs increased by 13.98%, 10.12%, 11.21%, and 13.68%, respectively. Ionic liquids can improve the lignocellulosic degradation by regulating the environmental physicochemical parameters (temperature, pH, C/N) to promote the growth of Actinobacteria and Proteobacteria and carbohydrate-active enzymes (CAZymes) abundance. Therefore, ionic liquids are a promising additive in lignocellulosic waste composting.
Collapse
Affiliation(s)
- Hongxiang Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Kecheng Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Pengfei Zhu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaolan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qingran Meng
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qiuqi Niu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Susu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qunliang Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China.
| |
Collapse
|
20
|
Nazar M, Xu L, Ullah MW, Moradian JM, Wang Y, Sethupathy S, Iqbal B, Nawaz MZ, Zhu D. Biological delignification of rice straw using laccase from Bacillus ligniniphilus L1 for bioethanol production: A clean approach for agro-biomass utilization. JOURNAL OF CLEANER PRODUCTION 2022; 360:132171. [DOI: 10.1016/j.jclepro.2022.132171] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
|
21
|
Wang J, Cao L, Liu Y, Huang Z, Li C, Wu D, Ruan R. Multiple hydrolyses of rice straw by domesticated paddy soil microbes for methane production via liquid anaerobic digestion. BIORESOURCE TECHNOLOGY 2022; 354:127184. [PMID: 35447327 DOI: 10.1016/j.biortech.2022.127184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
The aim of this study was to investigate the hydrolysis of rice straw (RS) using domesticated paddy soil microbes (DPSMs) with swine wastewater (SW) as the nitrogen source and the multiple hydrolyses for CH4 production via liquid anaerobic digestion (L-AD). Three hydrolyses of RS with a 45% inoculation ratio (IR) under the conditions of a carbon/nitrogen ratio (C/N ratio) of 40, temperature of 37 °C, inoculum/substrate ratio (I/S ratio) of 2:1, and immersion depth of 6.0 cm were optimal, attaining maximum volatile fatty acids (VFAs) after five days, possibly owing to the synergistic effect of aerobic microbes (Firmicutes and Actinomycetes) and anaerobic microbes (Bacteroidetes and Acidobacteria). After three hydrolyses, the degradation rates of hemicellulose, cellulose, and lignin in RS were 88.45%, 83.19% and 70.09%, respectively. The accumulative CH4 production reached 462.11 mL/g VS after three hydrolyses, and its curve fitted well with the modified Gompertz model (R2 > 0.984).
Collapse
Affiliation(s)
- Jingjing Wang
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Leipeng Cao
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China.
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Zhenghua Huang
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Congmiao Li
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Daishe Wu
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, 330047 Nanchang, China
| | - Roger Ruan
- Center for Biorefining and Dept. of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN 55108, USA
| |
Collapse
|
22
|
Hemati A, Nazari M, Asgari Lajayer B, Smith DL, Astatkie T. Lignocellulosics in plant cell wall and their potential biological degradation. Folia Microbiol (Praha) 2022; 67:671-681. [PMID: 35508797 DOI: 10.1007/s12223-022-00974-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 04/23/2022] [Indexed: 11/29/2022]
Abstract
Lignocellulosic materials are composed of three main structural polymers: hemicellulose, cellulose, and lignin. Cellulose is a long chain molecule of glucose requiring a small number of enzymes for degradation due to its simple structure while lignin is a complex polymer of phenylpropane making its biochemical decomposition difficult. Under anaerobic conditions, lignocellulose breakdown is much easier and more rapid than aerobic conditions. Various studies have been carried out to estimate the rate of degradation of lignocellulosic materials. Microorganisms play a key role in the degradation of lignocellulosic materials because they produce a variety of hydrolytic enzymes including cellulase, proteases, xylanases, lipases, laccase, and phosphatases during the degradation of lignocellulosic materials. Based on the body of literature, microorganismal activity can provide useful information about the process of organic matter decomposition.
Collapse
Affiliation(s)
- Arash Hemati
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Mahtab Nazari
- Department of Plant Sciences, Macdonald Campus/McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - Behnam Asgari Lajayer
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Donald L Smith
- Department of Plant Sciences, Macdonald Campus/McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - Tess Astatkie
- Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada.
| |
Collapse
|
23
|
Wang H, Peng X, Li H, Giannis A, He C. Recent Biotechnology Advances in Bio-Conversion of Lignin to Lipids by Bacterial Cultures. Front Chem 2022; 10:894593. [PMID: 35494654 PMCID: PMC9039179 DOI: 10.3389/fchem.2022.894593] [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: 03/11/2022] [Accepted: 03/28/2022] [Indexed: 12/15/2022] Open
Abstract
The complexity and recalcitrance of the lignin structure is a major barrier to its efficient utilization and commercial production of high-value products. In recent years, the “bio-funneling” transformation ability of microorganisms has provided a significant opportunity for lignin conversion and integrated biorefinery. Based on the chemical structure of lignin, this mini-review introduces the recent advances of lignin depolymerization by bacterial strains and the application of microbial lignin degradation in lipids production. Furthermore, the current challenges, future trends and perspectives for microbe-based lignin conversion to lipids are discussed.
Collapse
Affiliation(s)
- Huan Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China
- Guizhou Industry Polytechnic College, Guiyang, China
| | - Xiaodong Peng
- Guizhou Institute of Products Quality Inspection and Testing, Guiyang, China
| | - Hu Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China
- *Correspondence: Hu Li, ; Chao He,
| | - Apostolos Giannis
- School of Chemical and Environmental Engineering, Technical University of Crete, University Campus, Chania, Greece
| | - Chao He
- Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland
- *Correspondence: Hu Li, ; Chao He,
| |
Collapse
|
24
|
Zhou Q, Sun H, Jia L, Wu W. Simultaneously advanced removal of nitrogen and phosphorus in a biofilter packed with ZVI/PHBV/sawdust composite: Deciphering the succession of dominant bacteria and keystone species. BIORESOURCE TECHNOLOGY 2022; 347:126724. [PMID: 35065223 DOI: 10.1016/j.biortech.2022.126724] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
In this study, a biofilter was developed with a ZVI/PHBV/sawdust (ZPS) composite for treating simulative secondary effluent from wastewater treatment plants. Results showed that effluent concentrations of NO3--N and TP in the ZPS biofilter were stable below 2.0 mg/L and 0.1 mg/L, corresponding to 95% NO3--N removal and 99% TP removal, respectively. Microbial community analysis revealed that the transformation of dominant taxa from Dechloromonas to Clostridium sensu stricto_7 from 30 d to 120 d suggested that the ZVI-induced succession of dominant fermentation bacteria ensured the stable carbon supply for denitrification. Co-occurrence network analysis showed that the ZVI directly enhanced the interaction of microbial community. Fe-related bacteria occupied a key position in the rare species, which might maintain the function of iron-mediated organic matter decomposition and denitrification. These findings provide an alternative for advanced removal of nitrogen and phosphorus in biofilters packed with ZPS composites.
Collapse
Affiliation(s)
- Qi Zhou
- Department of Environmental Science, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Haimeng Sun
- Department of Environmental Science, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Lixia Jia
- Department of Environmental Science, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Weizhong Wu
- Department of Environmental Science, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; The Key Laboratory of Water and Sediment Sciences (Peking University), Ministry of Education, Beijing 100871, China.
| |
Collapse
|
25
|
Wang L, Xue C, Owens G, Chen Z. Artificial intelligence modeling and molecular docking to analyze the laccase delignification process of rice straw by Comamonas testosteroni FJ17. BIORESOURCE TECHNOLOGY 2022; 345:126565. [PMID: 34921918 DOI: 10.1016/j.biortech.2021.126565] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
The laccase enzymatic characteristics and delignification processes of rice straw by Comamonas testosteroni FJ17 were investigated. Artificial intelligence modeling and molecular docking revealed the specific functional properties involved in the interaction between laccase and lignin compounds with a maximum laccase activity of 2016.7 U L-1 at 24 h. Scanning electron microscopy and X-ray diffractometer analysis confirmed that laccase caused fractures and holes on the surface of rice straw, where crystallinity decrease from 45.3 to 39.9%, and lignin content decreased from 19.0 to 10.3%. Gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry analysis showed that the main delignification process for laccase was via β-o-4 and α-aryl ether cleavage, which generated several small molecular products. The laccase gene was cloned and bioinformatics analysis presented 317 amino acids with a predicted molecular weight of 33.13 kDa. Finally, laccase protein was found to have low binding energies with all lignin compounds tested, and lignin compounds were oxidized by laccase through hydrogen-bonding interactions with the amino acid residues.
Collapse
Affiliation(s)
- Lijie Wang
- School of Environmental Science and Engineering, Fujian Normal University, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fuzhou 350007, Fujian Province, PR China
| | - Chao Xue
- School of Environmental Science and Engineering, Fujian Normal University, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fuzhou 350007, Fujian Province, PR China.
| | - Gary Owens
- Environmental Contaminants Group, Future Industries Institute, University of South Australian, Mawson Lakes, SA 5095, Australia
| | - Zuliang Chen
- School of Environmental Science and Engineering, Fujian Normal University, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fuzhou 350007, Fujian Province, PR China
| |
Collapse
|
26
|
Wang J, Li L, Xu H, Zhang Y, Liu Y, Zhang F, Shen G, Yan L, Wang W, Tang H, Qiu H, Gu JD, Wang W. Construction of a fungal consortium for effective degradation of rice straw lignin and potential application in bio-pulping. BIORESOURCE TECHNOLOGY 2022; 344:126168. [PMID: 34737050 DOI: 10.1016/j.biortech.2021.126168] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
To improve the lignin degradation efficiency, we established a co-culture consortium (LDFC) consisting of Trametes hirsuta BYL-3, Trametes versicolor BYL-7 and Trametes hirsuta BYL-8. The testing results showed that the constructed consortium showed improved the lignin degradation rate by fungi. The optimal cultivation conditions were mixture at 1:1:1 vol ratio of each fungus, 7% (w/v) of inoculum amount, culture temperature at 26 °C, pH was 6.9 and 10 days of culturing time. Under these conditions, the degradation rate of lignin was 39.7%, which was 9.3% higher than those before optimization (30.4%). Using rice straw for treatment by LDFC to papermaking, the paper tensile strength was 8 N, and the ring pressure index was 2.46 N·m/g, which meets the standards for the production of corrugated paper for packaging. These results indicate that LDFC has potential application value to convert rice straw resources for bio-pulping to make papers.
Collapse
Affiliation(s)
- Jinghong Wang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Lingling Li
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Hongmin Xu
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Yali Zhang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Yuxin Liu
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Fangzheng Zhang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Guinan Shen
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Lei Yan
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China
| | - Weiwei Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Hongzhi Tang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Huajiao Qiu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, People's Republic of China
| | - Ji-Dong Gu
- Environmental Science and Technology Research Group, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong 515063, People's Republic of China
| | - Weidong Wang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, People's Republic of China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, People's Republic of China; Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, People's Republic of China.
| |
Collapse
|
27
|
Sijinamanoj V, Muthukumar T, Muthuraja R, Rayappan K, Karmegam N, Saminathan K, Govarthanan M, Kathireswari P. Ligninolytic valorization of agricultural residues by Aspergillus nomius and Trichoderma harzianum isolated from gut and comb of Odontotermes obesus (Termitidae). CHEMOSPHERE 2021; 284:131384. [PMID: 34323800 DOI: 10.1016/j.chemosphere.2021.131384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/20/2021] [Accepted: 06/27/2021] [Indexed: 06/13/2023]
Abstract
Fungi produce enzymes that degrade the complex lignin thereby enabling the efficient utilization of plant lignocellulosic biomass in the production of biofuel and cellulose-based products. In the present study, the agricultural residues such as paddy straw, sugarcane bagasse, and coconut husk were used as substrates for the biodegradation by Aspergillus nomius (MN700028) and Trichoderma harzianum (MN700029) isolated from gut of the termite, Odontotermes obesus and fungus comb in the termite mound, respectively. The influence of varying concentrations of different carbon sources, pH, and temperature on ligninolytic enzyme production was examined under laboratory conditions. The highest activities of manganese peroxidase (0.24 U/mL), lignin peroxidase (10.38 U/mL) and laccase (0.05 U/mL) were observed under studied conditions. Fungal pretreatment of lignocellulosic biomass for 45 days showed that A. nomius and T. harzianum degraded 84.4% and 81.66% of hemicelluloses, 8.16% and 93.75% of cellulose, and 52.59% and 65% of lignin, respectively. The interaction of pH, temperature, and different carbon sources with fungal biomass and enzyme production was found significant (p ≤ 0.05). SEM analysis indicated alterations in the microstructures of degraded lignocellulosic substrates. A. nomius and T. harzianum were highly efficient in ligninolytic enzymes production and in vitro digestibility of agricultural residues. The study reports the production of laccase by A. nomius isolated from termite gut for the first time. The fungal isolates A. nomius and T. harzianum posses potential for ligninocellulosic waste degradation.
Collapse
Affiliation(s)
- Velayuthan Sijinamanoj
- PG and Research Department of Zoology, Kongunadu Arts and Science College, Coimbatore, 641 029, Tamil Nadu, India
| | - Thangavelu Muthukumar
- Root and Soil Biology Laboratory, Department of Botany, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Raji Muthuraja
- Root and Soil Biology Laboratory, Department of Botany, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Kathirvel Rayappan
- Department of Zoology, Sri Vidya Mandir Arts and Science College, Krishnagiri, 636 902, Tamil Nadu, India
| | - Natchimuthu Karmegam
- Department of Botany, Government Arts College (Autonomous), Salem, 636 007, Tamil Nadu, India
| | - Kulandaivel Saminathan
- Department of Chemistry, Kongunadu Arts and Science College, Coimbatore, 641 029, Tamil Nadu, India
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Palanisamy Kathireswari
- PG and Research Department of Zoology, Kongunadu Arts and Science College, Coimbatore, 641 029, Tamil Nadu, India.
| |
Collapse
|