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Shi C, Yang X, Wang P, Zhang H, Wang Q, Wang B, Oyom W, Zhang W, Wen P. Screening of Lactiplantibacillus plantarum NML21 and Its Maintenance on Postharvest Quality of Agaricus bisporus through Anti-Browning and Mitigation of Oxidative Damage. Foods 2024; 13:168. [PMID: 38201195 PMCID: PMC10778869 DOI: 10.3390/foods13010168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Browning and other undesirable effects on Agaricus bisporus (A. bisporus) during storage seriously affect its commercial value. In this study, a strain, Lactiplantibacillus plantarum NML21, that resists browning and delays the deterioration of A. bisporus was screened among 72 strains of lactic acid bacteria (LAB), and its preservative effect was analyzed. The results demonstrated that gallic acid, catechin, and protocatechuic acid promoted the growth of NML21, and the strain conversion rates of gallic acid and protocatechuic acid reached 97.16% and 95.85%, respectively. During a 15 d storage of the samples, the NML21 treatment displayed a reduction in the browning index (58.4), weight loss (2.64%), respiration rate (325.45 mg kg-1 h-1), and firmness (0.65 N). The treatment further inhibited Pseudomonas spp. growth and polyphenol oxidase activity, improved the antioxidant capacity, reduced the accumulation of reactive oxygen species, and reduced the malonaldehyde content and cell membrane conductivity. Taken together, the optimized concentrations of NML21 may extend the shelf life of A. bisporus for 3-6 d and could be a useful technique for preserving fresh produce.
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Affiliation(s)
- Chengrui Shi
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (C.S.); (Q.W.)
| | - Xiaoli Yang
- Gansu Institute of Business and Technology Co., Lanzhou 730070, China;
| | - Pengjie Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (H.Z.)
| | - Hao Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (H.Z.)
| | - Qihui Wang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (C.S.); (Q.W.)
| | - Bo Wang
- Lanzhou Customs Technology Center, Lanzhou 730070, China;
| | - William Oyom
- Food and Nutritional Sciences Program, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA;
| | - Weibing Zhang
- Functional Dairy Products Engineering Lab., Gansu Agricultural University, Lanzhou 730070, China
| | - Pengcheng Wen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (C.S.); (Q.W.)
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Islam S, Biswas S, Jabin T, Moniruzzaman M, Biswas J, Uddin MS, Akhtar-E-Ekram M, Elgorban AM, Ghodake G, Syed A, Saleh MA, Zaman S. Probiotic potential of Lactobacillus plantarum DMR14 for preserving and extending shelf life of fruits and fruit juice. Heliyon 2023; 9:e17382. [PMID: 37484375 PMCID: PMC10361358 DOI: 10.1016/j.heliyon.2023.e17382] [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: 02/04/2023] [Revised: 06/09/2023] [Accepted: 06/15/2023] [Indexed: 07/25/2023] Open
Abstract
The harmful effects of chemical preservatives are driving the need for natural ones. To meet this demand, probiotic lactic acid bacteria (LAB) were isolated from fermented oats in this study. The goals of this study were to separate and identify probiotic LAB from fermented oats, to determine how effective these LAB are at combating pathogenic microorganisms in vitro, and to investigate their preservative capacity by applying the bacterium's cell-free supernatant (CFS) to specific fruits and fruit juice. The isolated strain was identified as Lactobacillus plantarum DMR14 using morphological, biochemical, and molecular investigation. Antimicrobial, antibiofilm, anti-oxidant, pH tolerance, and antibiotic resistance assays were used to evaluate the strain's probiotic potential, showing that Lactobacillus plantarum DMR14 had the strongest antagonistic and anti-biofilm capacity against Shigella boydii. Furthermore, the bacteriocin-containing compounds, cell-free supernatant (CFS) of the LAB, were tested against three fruits and one fruit juice, with the cell-free supernatant (CFS) of the bacterium lengthening the shelf life of the fruits compared to the untreated ones. Furthermore, while the concentration of coliform bacteria decreased in the treated sugarcane juice, an increase in the concentration of lactic acid bacteria suggested that the strain may be used as a fruit preservative in food industries.
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Affiliation(s)
- Shirmin Islam
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Suvro Biswas
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Tabassum Jabin
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md. Moniruzzaman
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Jui Biswas
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md. Salah Uddin
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md. Akhtar-E-Ekram
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Abdallah M. Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Gajanan Ghodake
- Department of Biological and Environmental Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, 10326, Gyeonggi-do, South Korea
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Md. Abu Saleh
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Shahriar Zaman
- Microbiology Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
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Debaryomyces nepalensis reduces fungal decay by affecting the postharvest microbiome during jujube storage. Int J Food Microbiol 2022; 379:109866. [PMID: 35944358 DOI: 10.1016/j.ijfoodmicro.2022.109866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/18/2022] [Accepted: 07/28/2022] [Indexed: 11/22/2022]
Abstract
Microbial antagonists are effective and environmentally friendly in controlling postharvest diseases of fruit. The present study investigated the influence of D. nepalensis on epiphytic microbiome and postharvest decay of jujube. Results showed that D. nepalensis notably reduced fungal decay, maintained the fruit firmness and delayed discoloration. The epiphytic microbiome revealed that D. nepalensis changed the fungal communities, but few influence on bacterial communities were observed. D. nepalensis, as the dominant population in the treatment group, decreased the abundance of pathogenic fungi of Alternaria, Penicillium, Fusarium and Botrytis, while increased the beneficial bacteria of Pantoea. The canonical correspondence analysis revealed that Debaryomyces was negatively correlated with the decay rate, whereas Penicillium, Acremonium, Rhodosporidiobolus and Hansfordia were positively correlated. In conclusion, D. nepalensis altered the successional process of fungal and bacterial communities to reduce the decay rate of jujube during storage.
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The Effect of Lactiplantibacillus plantarum BX62 Alone or in Combination with Chitosan on the Qualitative Characteristics of Fresh-Cut Apples during Cold Storage. Microorganisms 2021; 9:microorganisms9112404. [PMID: 34835529 PMCID: PMC8618497 DOI: 10.3390/microorganisms9112404] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/17/2021] [Accepted: 11/20/2021] [Indexed: 12/11/2022] Open
Abstract
In order to explore whether beneficial lactic acid bacteria (LAB) could prolong the shelf life and improve the quality of fresh-cut apples, Lactiplantibacillus plantarum BX62, which was isolated from traditional fermented yak yogurt, and chitosan (CT), were applied to fresh-cut apples, subsequently stored at 4 °C. On days 0, 2, 4, 6, and 8, apple slices were taken for physicochemical, microbiological analysis, and sensory evaluation. The results showed that apple slices coated with L. plantarum BX62 (8 log CFU/mL) presented lower weight loss and browning rate, higher DPPH scavenging capacity, and achieved more effective inhibition of polyphenol oxidase (PPO) and peroxidase (POD) activities compared to the control samples. The application of CT alone or in combination with L. plantarum BX62 resulted in a significant reduction in aerobic mesophilic bacteria (AMB), aerobic psychrophilic bacterial (APB), yeast and molds (YAMs) counts (2.31 log CFU/g for AMB, 2.55 for APB, and 1.58 for YAMs). In addition, L. plantarum BX62 coated apples showed acceptable sensory properties in terms of color, flavor, taste, texture, and overall visual quality during 8 d of storage. On this basis, L. plantarum BX62 could be used as an excellent bio-preservative to extend the shelf life and improve the quality of fresh-cut apples.
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Zhang H, Serwah Boateng NA, Ngolong Ngea GL, Shi Y, Lin H, Yang Q, Wang K, Zhang X, Zhao L, Droby S. Unravelling the fruit microbiome: The key for developing effective biological control strategies for postharvest diseases. Compr Rev Food Sci Food Saf 2021; 20:4906-4930. [PMID: 34190408 DOI: 10.1111/1541-4337.12783] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 12/15/2022]
Abstract
Fruit-based diets are recognized for their benefits to human health. The safety of fruit is a global concern for scientists. Fruit microbiome represents the whole microorganisms that are associated with a fruit. These microbes are either found on the surfaces (epiphytes) or in the tissues of the fruit (endophytes). The recent knowledge gained from these microbial communities is considered relevant to the field of biological control in prevention of postharvest fruit pathology. In this study, the importance of the microbiome of certain fruits and how it holds promise for solving the problems inherent in biocontrol and postharvest crop protection are summarized. Research needs on the fruit microbiome are highlighted. Data from DNA sequencing and "meta-omics" technologies very recently applied to the study of microbial communities of fruits in the postharvest context are also discussed. Various fruit parameters, management practices, and environmental conditions are the main determinants of the microbiome. Microbial communities can be classified according to their structure and function in fruit tissues. A critical mechanism of microbial biological control agents is to reshape and interact with the microbiome of the fruit. The ability to control the microbiome of any fruit is a great potential in postharvest management of fruits. Research on the fruit microbiome offers important opportunities to develop postharvest biocontrol strategies and products, as well as the health profile of the fruit.
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Affiliation(s)
- Hongyin Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | | | - Guillaume Legrand Ngolong Ngea
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.,Institute of Fisheries Sciences, University of Douala, Douala, Cameroon
| | - Yu Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Hetong Lin
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qiya Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Kaili Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xiaoyun Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lina Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Samir Droby
- Department of Postharvest Science, ARO, the Volcani Center, Rishon LeZion, Israel
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Huang X, Ren J, Li P, Feng S, Dong P, Ren M. Potential of microbial endophytes to enhance the resistance to postharvest diseases of fruit and vegetables. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:1744-1757. [PMID: 32974893 DOI: 10.1002/jsfa.10829] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Food loss of fruit and vegetables caused by postharvest diseases is a major issue worldwide. The method used to prevent and control postharvest diseases is usually to use chemical fungicides, but long-term and large-scale use will make the pathogens resistant and potentially have a negative impact on human health and the ecological environment. Therefore, finding a safe and effective biological control method instead of chemical control is a hot research topic in recent years. Endophytes, colonizing plants asymptomatically, can promote the growth of the hosts and enhance their resistance. The use of endophytes as biological control agents for postharvest diseases of fruit and vegetables has attracted increasing attention in the last 20 years. Compared with chemical control, endophytes have the advantages of being more environmentally friendly, sustainable, and safer. However, there are relatively few relevant studies, so herein we summarize the available literature. This review focuses mainly on the recent progress of using endophytes to enhance the resistance of postharvest fruit and vegetables to diseases, with the emphasis on the possible mechanisms and the potential applications. Furthermore, this article suggests future areas for study using antagonistic endophytes to prevent and control fruit and vegetable postharvest diseases: (i) screening more potential broad-spectrum anti-pathogen endophytes and their metabolic active substances by the method of macrogenomics; (ii) elucidating the underlining molecular mechanism among endophytes, harvested vegetables and fruit, pathogens, and microbial communities; (iii) needing more application research to overcome the difficulties of commercialization practice. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xiaoqing Huang
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Jie Ren
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Peihua Li
- College of Agronomy, Xichang University, Xichang, China
| | - Shun Feng
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Pan Dong
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Maozhi Ren
- School of Life Sciences, Chongqing University, Chongqing, China
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, China
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Zhao S, Li C, Zhu T, Jin L, Deng W, Zhao K, He Y, Li G, Xiong Y, Li T, Li B, Huang Y, Zhang H, Zou L. Diversity and Composition of Gut Bacterial Community in Giant Panda with Anorexia. Curr Microbiol 2021; 78:1358-1366. [PMID: 33646379 DOI: 10.1007/s00284-021-02424-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 02/10/2021] [Indexed: 01/02/2023]
Abstract
The giant panda (GP) is the most precious animal in China. Gastrointestinal tract disease, especially associated with dysbiosis of gut microbiota, is the leading cause of death in GPs. Here, we performed 16S rRNA high-throughput sequencing to investigate the gut microbiota of GPs having symptoms of anorexia. Results showed that gut microbiota of GP with anorexia had lower richness (Chao1 index) than the healthy GP. However, no significant differences in alpha diversity were observed. There is a significance in the microbial structure between anorexia and healthy GPs. The abundance of phylum Firmicutes (99.23% ± 7.1%), unidentified genus Clostridiales (24.75% ± 2.5%), was significantly higher in the subadult anorexia group (P < 0.01), and that of the unidentified genus Clostridiales (4.53% ± 1.2%) was also significantly higher in the adult anorexia group (P < 0.01). Weissella and Streptococcus were found to be decreased in both anorexia groups. The decreased abundance of Weissella (0.02% ± 0.0%, 0.08% ± 0.0%) and Streptococcus (73.89% ± 4.3%, 91.15% ± 7.6%) and increase in Clostridium may cause symptoms of anorexia in giant pandas. The correlation analysis indicated that there is a symbiotic relationship among Streptococcus, Leuconostoc, Weissella, and Bacillus which are classified as probiotics (r > 0.6, P < 0.05). Importantly, a negative correlation has been found between Streptococcus and unidentified_Clostridium in two groups (r > 0.6, P < 0.05). Our results suggested that Streptococcus might be used as probiotics to control the growth of Clostridium causing the anorexia.
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Affiliation(s)
- Siyue Zhao
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Caiwu Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Tao Zhu
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Lei Jin
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Wenwen Deng
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
| | - Ke Zhao
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yongguo He
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Guo Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
| | - Yaowu Xiong
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Ti Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Bei Li
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Huang
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Hemin Zhang
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for Giant Panda, Dujiangyan, Sichuan, China
- Qionglai Mountains Conservation Biology of Endangered Wild Animals and Plants National Permanent Scientific Research Base, Dujiangyan, Sichuan, China
| | - Likou Zou
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China.
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Dai K, Han P, Zou X, Jiang S, Xu F, Wang H, Wei Y, Shao X. Hot air treatment reduces postharvest decay in Chinese bayberries during storage by affecting fungal community composition. Food Res Int 2020; 140:110021. [PMID: 33648251 DOI: 10.1016/j.foodres.2020.110021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 11/25/2022]
Abstract
Chinese bayberry fruit were treated with hot air (HA) at 48 ℃ for 3 h and then stored at 4 ℃ for 15 d. Changes in fungal communities were analyzed by high-throughput sequencing (HTS), and decay and fruit quality were monitored during storage. The results showed that HA treatment effectively maintains fruit quality and the richness and diversity of fungal communities. Heat treatment inhibited decay development and reduced the growth of fungi in the genera Botryotinia spp., Davidiella spp., Hanseniaspora spp., and Candida spp. Canonical correspondence analysis further revealed that Botryotinia spp. and Davidiella spp. were positively correlated with fruit decay and weight loss. FUNGuild analysis demonstrated that HA-treated bayberries had a lower relative abundance within the plant pathogen guild, but higher relative abundance within the endophyte guild. The results suggest that HA treatment reduces pathogens by favoring the increase of endophytes, providing new insight into the decay development and quality changes during the storage of postharvest Chinese bayberries.
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Affiliation(s)
- Kun Dai
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China
| | - Peipei Han
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China
| | - Xiurong Zou
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China; Yingdong College of Food Science and Engineering, Shaoguan University, Shaoguan 512005, China
| | - Shu Jiang
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China
| | - Feng Xu
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China
| | - Hongfei Wang
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China
| | - Yingying Wei
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China.
| | - Xingfeng Shao
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China.
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Fang X, Duan Q, Wang Z, Li F, Du J, Ke W, Liu D, Beier RC, Guo X, Zhang Y. Products of Lactobacillus delbrueckii subsp. bulgaricus Strain F17 and Leuconostoc lactis Strain H52 Are Biopreservatives for Improving Postharvest Quality of 'Red Globe' Grapes. Microorganisms 2020; 8:E656. [PMID: 32365911 PMCID: PMC7285285 DOI: 10.3390/microorganisms8050656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/25/2020] [Accepted: 04/29/2020] [Indexed: 12/20/2022] Open
Abstract
'Red Globe' table grapes are large, edible, seeded fruit with firm flesh that tastes good, but can have poor postharvest shelf-life. This study was conducted to explore the effects of products of Lactobacillus delbrueckii subsp. bulgaricus strain F17 and Leuconostoc lactis strain H52 on 'Red Globe' table grapes for the enhancement of shelf-life and improvement of grape quality characteristics during postharvest storage. Strains F17 and H52 were isolated from traditional fermented yak milk obtained in the Qinghai-Tibetan Plateau. Samples from untreated and treated grapes were analyzed for physicochemical, biochemical, and microbiological properties (weight loss, decay rate, pH, total soluble solids content, titratable acidity, total phenols, sensory evaluation, and microbial growth) for 20 days. The results demonstrated that supernatants from both strains significantly reduced weight loss, decay rate, aerobic mesophilic bacteria, and coliform bacteria counts; delayed maturity and senescence of table grapes; and reduced titratable acidity and total phenols. However, the supernatant of strain F17 was more effective and resulted in better sensory evaluations and had a significant inhibitory effect on yeast and molds by day 5. Meanwhile, the supernatant from strain H52 had a significant inhibitory effect on fungi over the whole storage period. In addition, the results of the Pearson correlation analysis suggested that weight loss, decay rate, total soluble solids content, and microorganisms were highly correlated with the sensory evaluation data and quality of postharvest grapes when treated with the products of strain F17. On the basis of these data and sensory organoleptic qualities, the supernatant containing products from strain F17 had the best potential as a biopreservative to improve the postharvest quality of 'Red Globe' table grapes.
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Affiliation(s)
- Xiang Fang
- College of Public Health, Lanzhou University, Lanzhou 730000, China; (X.F.); (Z.W.); (F.L.); (D.L.)
| | - Qinchun Duan
- State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (Q.D.); (J.D.); (W.K.); (X.G.)
| | - Zhuo Wang
- College of Public Health, Lanzhou University, Lanzhou 730000, China; (X.F.); (Z.W.); (F.L.); (D.L.)
| | - Fuyun Li
- College of Public Health, Lanzhou University, Lanzhou 730000, China; (X.F.); (Z.W.); (F.L.); (D.L.)
| | - Jianxiong Du
- State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (Q.D.); (J.D.); (W.K.); (X.G.)
| | - Wencan Ke
- State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (Q.D.); (J.D.); (W.K.); (X.G.)
| | - Diru Liu
- College of Public Health, Lanzhou University, Lanzhou 730000, China; (X.F.); (Z.W.); (F.L.); (D.L.)
| | - Ross C. Beier
- United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, Food and Feed Safety Research Unit, College Station, TX 77845-4988, USA;
| | - Xusheng Guo
- State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (Q.D.); (J.D.); (W.K.); (X.G.)
| | - Ying Zhang
- College of Public Health, Lanzhou University, Lanzhou 730000, China; (X.F.); (Z.W.); (F.L.); (D.L.)
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