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Elhalis H, Chin XH, Chow Y. Soybean fermentation: Microbial ecology and starter culture technology. Crit Rev Food Sci Nutr 2024; 64:7648-7670. [PMID: 36916137 DOI: 10.1080/10408398.2023.2188951] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Fermented soybean products, including Soya sauce, Tempeh, Miso, and Natto have been consumed for decades, mainly in Asian countries. Beans are processed using either solid-state fermentation, submerged fermentation, or a sequential of both methods. Traditional ways are still used to conduct the fermentation processes, which, depending on the fermented products, might take a few days or even years to complete. Diverse microorganisms were detected during fermentation in various processes with Bacillus species or filamentous fungi being the two main dominant functional groups. Microbial activities were essential to increase the bean's digestibility, nutritional value, and sensory quality, as well as lower its antinutritive factors. The scientific understanding of fermentation microbial communities, their enzymes, and their metabolic activities, however, still requires further development. The use of a starter culture is crucial, to control the fermentation process and ensure product consistency. A broad understanding of the spontaneous fermentation ecology, biochemistry, and the current starter culture technology is essential to facilitate further improvement and meet the needs of the current extending and sustainable economy. This review covers what is currently known about these aspects and reveals the limited available information, along with the possible directions for future starter culture design in soybean fermentation.
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Affiliation(s)
- Hosam Elhalis
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Nanos, Singapore, Singapore
- Food Science and Technology, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales, Australia
| | - Xin Hui Chin
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Nanos, Singapore, Singapore
| | - Yvonne Chow
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Nanos, Singapore, Singapore
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2
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Luo JW, Xiao S, Suo H, Wang B, Cai YX, Wang JH. Dynamics of nutrients, sensory quality and microbial communities and their interactions during co-fermentation of pineapple by-products and whey protein. Food Chem X 2024; 22:101254. [PMID: 38444559 PMCID: PMC10912343 DOI: 10.1016/j.fochx.2024.101254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 02/16/2024] [Accepted: 02/24/2024] [Indexed: 03/07/2024] Open
Abstract
In this study, a new fermented food was developed using pineapple by-products and whey protein (2.6%) as raw materials through the co-fermentation of autochthonous lactic acid bacteria and yeast. To better understand the fermentation mechanism and the impact of microorganisms on the entire fermentation system, we tracked the changes in carbohydrate and amino acid profiles, organoleptic quality and microbial community during the fermentation process. Compared with unfermented samples, dietary fiber and free amino acids increased significantly as fermentation proceeded. The fermented samples were significantly lower in astringency and bitterness and significantly higher in sourness, umami and richness. The fermented products were richer in volatile compounds with floral, cheesy, fruity and other flavors. Relevant analyses showed that the core microbial community was highly correlated with the quality attributes of the fermented products. Microorganisms such as Lactococcus, Weissella, Hanseniaspora, Saccharomyces and Lachancea contributed significantly to the fermented products.
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Affiliation(s)
- Jia-wei Luo
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
- College of Food Science, South China Agricultural University, Guangzhou 523006, China
| | - Shan Xiao
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan University of Technology, Dongguan 523808, China
| | - Hao Suo
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan University of Technology, Dongguan 523808, China
| | - Bo Wang
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan University of Technology, Dongguan 523808, China
| | - Yan-xue Cai
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan University of Technology, Dongguan 523808, China
| | - Ji-hui Wang
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan University of Technology, Dongguan 523808, China
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Xiang Y, Zhou B, Jiang C, Tang Z, Liu P, Ding W, Lin H, Tang J. Revealing the formation mechanisms of key flavors in fermented broad bean paste. Food Res Int 2024; 177:113880. [PMID: 38225117 DOI: 10.1016/j.foodres.2023.113880] [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] [Received: 06/11/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 01/17/2024]
Abstract
Pixian Douban (PXDB) is a popular Chinese condiment for its distinctive flavor. Broad bean fermentation (Meju) is the most important process in the formation of flavor substances. Key flavors were analyzed qualitatively and quantitatively, and metagenomic technology was applied to study the microbial diversity during broad bean fermentation. In addition, the main metabolic pathways of key flavors were explored. Results indicated that Staphylococcus_gallinarum was the main microorganism in the microbial community, accounting for 39.13%, followed by Lactobacillus_agilis, accounting for 13.76%. Aspergillus_flavus was the fungus with the highest species abundance, accounting for 3.02%. The KEGG Pathway enrichment analysis showed that carbohydrate metabolism and amino acid metabolism were the main metabolic pathways. Glycoside hydrolase and glycosyltransferase genes were the most abundant, accounting for more than 70% of the total number of active enzyme genes. A total of 113 enzymes related to key flavors and 39 microorganisms corresponding to enzymes were annotated. And Staphylococcus_gallinarum, Lactobacillus_agilis, Weissella_confusa, Pediococcus_acidilactici, Staphylococcus_kloosii, Aspergillus_oryzae, and Aspergillus_flavus played a key role in the metabolic pathway. This study reveals the formation mechanism of key flavors in fermented broad bean, it is important for guiding the industrial production of PXDB and improving product quality.
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Affiliation(s)
- Yue Xiang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Food Microbiology Key Laboratory of Sichuan Province, Chengdu 610039, China.
| | - Binbin Zhou
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Chunyan Jiang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Zhirui Tang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Ping Liu
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Wenwu Ding
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Hongbin Lin
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China.
| | - Jie Tang
- Food Microbiology Key Laboratory of Sichuan Province, Chengdu 610039, China.
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Zhou J, Wang J, Zhou Y, Liu K, Lu Y, Zhu L, Chen X. Microbial community structure and interactions between Aspergillus oryzae and bacteria in traditional solid-state fermentation of Jiangqu. Food Microbiol 2023; 116:104346. [PMID: 37689429 DOI: 10.1016/j.fm.2023.104346] [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] [Received: 11/17/2022] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 09/11/2023]
Abstract
Microbial interactions play an important role in the formation, stabilization and functional performance of natural microbial communities. However, little is known about how the microbes present interactions to build a stable natural microbial community. Here, we developed Jiangqu, the solid-state fermented starters of thick broad-bean sauce formed naturally in factory, as model microbial communities by characterizing its diversity of microbial communities and batch stability. The dominant microbial strains and their fungi-bacteria interactions during solid-state fermentation of Jiangqu were characterized. In all batches of Jiangqu, Aspergillus oryzae, Bacillus, Staphylococcus and Weissella dominated in the communities and such a community structure could almost reduplicate between batches. Direct adsorption and competition were identified as the main interactions between A. oryzae and dominant bacteria during solid-state fermentation, which were quite different from liquid co-cultivation of A. oryzae and dominant bacteria. These results will help us better understand the intrinsic mechanism in the formation and stabilization of microbial communities from traditional solid-state qu-making and fermentation.
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Affiliation(s)
- Jiawei Zhou
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jiayan Wang
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yuanlu Zhou
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Kaiqiang Liu
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yuele Lu
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Linjiang Zhu
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Xiaolong Chen
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
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Xiao Y, Zhang S, Liu Z, Wang T, Cai S, Chu C, Hu X, Yi J. Effect of inoculating Pichia spp. starters on flavor formation of fermented chili pepper: Metabolomics and genomics approaches. Food Res Int 2023; 173:113397. [PMID: 37803735 DOI: 10.1016/j.foodres.2023.113397] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 10/08/2023]
Abstract
The influence of Pichia spp. on flavor formation and metabolic pathways during chili pepper fermentation was investigated in this study. Multiple omics approaches were employed, including metabolomics analysis to identify volatile and non-volatile flavor compounds, and genomic analysis to gain insights into the underlying molecular mechanism driving flavor formation of chili peppers inoculated with Pichia spp. The results showed that inoculation with Pichia spp. accelerated fermentation process of chili peppers compared to spontaneous fermentation. Metabolomics analysis showed P. fermentans promoted characteristic terpenes [e.g., (Z)-β-ocimene and linalool], L-glutamate, gamma-aminobutyric acid, and succinate production, while P. manshurica produced more alcohols (e.g., isoamyl alcohol and phenylethyl alcohol) and phenols (e.g., 4-ethylguaiacol and 2-methoxy-4-methylphenol). Genomics analysis revealed that a substantial portion of the genes in Pichia spp. were associated with amino acid and carbohydrate metabolism. Specifically, the pathways involved in amino acid metabolism and the release of glycoside-bound aromatic compounds were identified as the primary drivers behind the unique flavor of fermented chili peppers, facilitated by Pichia spp.
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Affiliation(s)
- Yue Xiao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Tao Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Shengbao Cai
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Chuanqi Chu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Xiaosong Hu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
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Yuan Y, Yang Y, Xiao L, Qu L, Zhang X, Wei Y. Advancing Insights into Probiotics during Vegetable Fermentation. Foods 2023; 12:3789. [PMID: 37893682 PMCID: PMC10606808 DOI: 10.3390/foods12203789] [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: 09/15/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Fermented vegetables have a long history and are enjoyed worldwide for their unique flavors and health benefits. The process of fermentation improves the nutritional value, taste, and shelf life of foods. Microorganisms play a crucial role in this process through the production of metabolites. The flavors of fermented vegetables are closely related to the evaluation and succession of microbiota. Lactic acid bacteria (LABs) are typically the dominant bacteria in fermented vegetables, and they help inhibit the growth of spoilage bacteria and maintain a healthy gut microbiota in humans. However, homemade and small-scale artisanal products rely on spontaneous fermentation using bacteria naturally present on fresh vegetables or from aged brine, which may introduce external microorganisms and lead to spoilage and substandard products. Hence, understanding the role of LABs and other probiotics in maintaining the quality and safety of fermented vegetables is essential. Additionally, selecting probiotic fermentation microbiota and isolating beneficial probiotics from fermented vegetables can facilitate the use of safe and healthy starter cultures for large-scale industrial production. This review provides insights into the traditional fermentation process of making fermented vegetables, explains the mechanisms involved, and discusses the use of modern microbiome technologies to regulate fermentation microorganisms and create probiotic fermentation microbiota for the production of highly effective, wholesome, safe, and healthy fermented vegetable foods.
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Affiliation(s)
- Yingzi Yuan
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Yutong Yang
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Lele Xiao
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Lingbo Qu
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
- Food Laboratory of Zhongyuan, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoling Zhang
- Food Laboratory of Zhongyuan, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yongjun Wei
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
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An F, Wu J, Feng Y, Pan G, Ma Y, Jiang J, Yang X, Xue R, Wu R, Zhao M. A systematic review on the flavor of soy-based fermented foods: Core fermentation microbiome, multisensory flavor substances, key enzymes, and metabolic pathways. Compr Rev Food Sci Food Saf 2023; 22:2773-2801. [PMID: 37082778 DOI: 10.1111/1541-4337.13162] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 04/01/2023] [Accepted: 04/06/2023] [Indexed: 04/22/2023]
Abstract
The characteristic flavor of fermented foods has an important impact on the purchasing decisions of consumers, and its production mechanisms are a concern for scientists worldwide. The perception of food flavor is a complex process involving olfaction, taste, vision, and oral touch, with various senses contributing to specific properties of the flavor. Soy-based fermented products are popular because of their unique flavors, especially in Asian countries, where they occupy an important place in the dietary structure. Microorganisms, known as the souls of fermented foods, can influence the sensory properties of soy-based fermented foods through various metabolic pathways, and are closely related to the formation of multisensory properties. Therefore, this review systematically summarizes the core microbiome and its interactions that play an active role in representative soy-based fermented foods, such as fermented soymilk, soy sauce, soybean paste, sufu, and douchi. The mechanism of action of the core microbial community on multisensory flavor quality is revealed here. Revealing the fermentation core microbiome and related enzymes provides important guidance for the development of flavor-enhancement strategies and related genetically engineered bacteria.
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Affiliation(s)
- Feiyu An
- College of Food Science, Shenyang Agricultural University, Shenyang, China
- Liaoning Provincial Engineering Research Center of Food Fermentation Technology, Shenyang, China
- Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, China
| | - Junrui Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, China
- Liaoning Provincial Engineering Research Center of Food Fermentation Technology, Shenyang, China
- Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, China
| | - Yunzi Feng
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Guoyang Pan
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Yuanyuan Ma
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Jinhui Jiang
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Xuemeng Yang
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Ruixia Xue
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, China
- Liaoning Provincial Engineering Research Center of Food Fermentation Technology, Shenyang, China
- Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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Hu G, Chen J, Du G, Fang F. Moromi mash dysbiosis trigged by salt reduction is relevant to quality and aroma changes of soy sauce. Food Chem 2023; 406:135064. [PMID: 36462362 DOI: 10.1016/j.foodchem.2022.135064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
Health concerns related to excessive salt consumption have increased the demand for foods with reduced salt content. However, it is a challenge to perform low salt fermentation of high salt liquid-state (HSL) soy sauce due to the interplay between salt and microorganisms. In this study, ≤12 % (w/v) NaCl led to failed fermentation of HSL soy sauce. At 9 % (w/v) NaCl, amino acid nitrogen decreased to 0.31 g/100 mL, total acid increased to 10.1 g/L, and biogenic amines increased to 904.49 mg/L. With reduced salt, the total number of bacteria (1-2 orders of magnitude) and spoilage bacteria (Bacillus, Kurthia, Staphylococcus saprophyticus, and Lactobacillus pobuzihii) increased, and the total number of functional microorganisms (Weissella, Zygosaccharomyces, and Candida) decreased. Unacceptable volatiles contents were higher in reduced-salt soy sauce than in normal salt soy sauce. Most of the unacceptable volatiles were positively correlated with spoilage bacteria.
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Affiliation(s)
- Guangyao Hu
- Science Center for Future Foods, Jiangnan University, Jiangsu, Wuxi 214122, China; The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China; Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China.
| | - Jian Chen
- Science Center for Future Foods, Jiangnan University, Jiangsu, Wuxi 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China; Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China.
| | - Guocheng Du
- Science Center for Future Foods, Jiangnan University, Jiangsu, Wuxi 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China; Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China; Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Jiangsu, Wuxi 214122, China.
| | - Fang Fang
- Science Center for Future Foods, Jiangnan University, Jiangsu, Wuxi 214122, China; The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China; Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Jiangsu, Wuxi 214122, China.
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Zhao S, Niu C, Wang Y, Li X, Zheng F, Liu C, Wang J, Li Q. Revealing the contributions of sunlight-expose process and core-microbiota metabolism on improving the flavor profile during Doubanjiang fermentation. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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10
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Feng L, Gu J, Guo L, Mu G, Tuo Y. Safety evaluation and application of lactic acid bacteria and yeast strains isolated from Sichuan broad bean paste. Food Sci Nutr 2023; 11:940-952. [PMID: 36789042 PMCID: PMC9922144 DOI: 10.1002/fsn3.3129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 10/03/2022] [Accepted: 10/25/2022] [Indexed: 12/23/2022] Open
Abstract
Broad bean paste is one of the most popular characteristic traditional fermented bean products in China, which is prepared by mixed fermentation of a variety of microorganisms, among which lactic acid bacteria and yeast played an important role in the improvement of the fermented broad bean paste quality. However, the traditional open-air fermentation of broad bean paste brought some risks of harmful microorganisms. In this study, the safety and fermentation ability of lactic acid bacteria and yeast strains isolated from traditional broad bean paste was evaluated. The results showed that the protease activity of the strain Lactobacillus plantarum DPUL-J5 (366.73 ± 9.00 U/L) and Pichia kudriavzevii DPUY-J5 (237.18 ± 10.93 U/L) were the highest. Both strains produced little biogenic amines, and did not exhibit α-hemolytic activity or antibiotic resistance for some of the antibiotics most used in human medicine. Furthermore, the broad bean paste fermentation involving DPUL-J5 and DPUY-J5 was beneficial for accumulating higher total acid (1.69 ± 0.01 g/100 g), amino-acid nitrogen (0.85 ± 0.03 g/100 g), and more volatile flavor compounds, meanwhile, reducing the levels of biogenic amines and aflatoxin B1. Therefore, this study provided a new strategy to improve the safety and quality of traditional broad bean paste.
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Affiliation(s)
- Lu Feng
- School of Food Science and TechnologyDalian Polytechnic UniversityDalianChina
| | - Jinhong Gu
- School of Food Science and TechnologyDalian Polytechnic UniversityDalianChina
| | - Linjie Guo
- School of Food Science and TechnologyDalian Polytechnic UniversityDalianChina
| | - Guangqing Mu
- School of Food Science and TechnologyDalian Polytechnic UniversityDalianChina
| | - Yanfeng Tuo
- School of Food Science and TechnologyDalian Polytechnic UniversityDalianChina
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11
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Cao C, Bian Y, Cang W, Wu J, Wu R. Structural characterization and hepatoprotective activity of exopolysaccharide from Bacillus velezensis SN-1. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:738-749. [PMID: 36053948 DOI: 10.1002/jsfa.12185] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/07/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Exopolysaccharide biopolymers produced by microorganisms are crucial to the environment. They contribute to areas such as the health and bionanotechnology sectors, food and cosmetic industries as gelling agents, and environmental sector as flocculants owing to their biodegradability and non-toxic nature. The current study aimed to isolate the fraction of released exopolysaccharide (rEPS) by Bacillus velezensis SN-1 from Chinese Da-Jiang. RESULTS The weighted average molecular weight of the major isolated component, rEPS-2, was 202 kDa, and its monosaccharide composition included mannose, glucose, and galactose at a molar ratio of 0.38:0.30:0.32. Further, the rEPS-2 was characterized using methylation analysis and one-dimensional/two-dimensional nuclear magnetic resonance (1D/2D NMR) spectroscopy. In vivo hepatoprotective effects indicated that rEPS-2 could alleviate carbon tetrachloride (CCl4 )-induced liver injury in mice by lowering the activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and the malondialdehyde (MDA) levels. Furthermore, rEPS-2 can increase the expression of antioxidant genes HO-1, GCLC and NQO1 in the Nrf2/ARE signaling pathway, thereby increasing the activity of antioxidant enzymes superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and reduced catalase (CAT) in liver cells. Furthermore, the rEPS-2 can be used and modulate the gut microbiota of mice with liver injury caused by CCl4 . CONCLUSIONS These results suggest that rEPS-2 has promising potential to serve as hepatoprotective agents. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Chengxu Cao
- College of Food Science, Shenyang Agricultural University, Liaoning Engineering Research Centre of Food Fermentation Technology, Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, P. R. China
- College of Grain Science and Technology, Shenyang Normal University, Shenyang, P. R. China
| | - Yuanyuan Bian
- College of Food Science, Shenyang Agricultural University, Liaoning Engineering Research Centre of Food Fermentation Technology, Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, P. R. China
| | - Weihe Cang
- College of Food Science, Shenyang Agricultural University, Liaoning Engineering Research Centre of Food Fermentation Technology, Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, P. R. China
| | - Junrui Wu
- College of Food Science, Shenyang Agricultural University, Liaoning Engineering Research Centre of Food Fermentation Technology, Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, P. R. China
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Liaoning Engineering Research Centre of Food Fermentation Technology, Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, P. R. China
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12
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Tian Z, Ameer K, Shi Y, Yi J, Zhu J, Kang Q, Lu J, Zhao C. Characterization of physicochemical properties, microbial diversity and volatile compounds of traditional fermented soybean paste in Henan province of China. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102045] [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]
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13
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Huang W, Xu H, Pan J, Dai C, Mintah BK, Dabbour M, Zhou R, He R, Ma H. Mixed-Strain Fermentation Conditions Screening of Polypeptides from Rapeseed Meal and the Microbial Diversity Analysis by High-Throughput Sequencing. Foods 2022. [PMCID: PMC9601322 DOI: 10.3390/foods11203285] [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] [Indexed: 11/29/2022] Open
Abstract
Conventional fermentation of rapeseed meal has disadvantages such as sterilization requirement, high energy consumption and low efficiency, as well as poor action of single bacteria. To overcome these drawbacks, mixed-strain fermentation of unsterilized rapeseed meal was investigated. Mixed-fermentation of unsterilized rapeseed meal (ratio of solid–liquid 1:1.2 g/mL) using Bacillus subtilis, Pediococcus acidilactici and Candida tropicalis (at 40 °C, for 3 days, with inoculation amount of 15% (w/w)) substantially increased the polypeptide content in rapeseed meal by 814.5% and decreased the glucosinolate content by 46.20%. The relationship between microbial diversity and physicochemical indicators showed that the improvement in polypeptide content was mainly caused by C. tropicalis (on the first day of fermentation) and B. subtilis (on the second day). Compared to raw rapeseed meal, the microbial diversity following the fermentation was significantly reduced, indicating that mixed-strain fermentation can inhibit the growth of miscellaneous bacteria. The study findings suggest that mixed-strain fermentation could be used to considerably increase the polypeptide content of unsterilized rapeseed meal, increasing the potential of rapeseed meal.
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Affiliation(s)
- Wei Huang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Haining Xu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Jiayin Pan
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Chunhua Dai
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | | | - Mokhtar Dabbour
- Department of Agricultural and Biosystems Engineering, Faculty of Agriculture, Benha University, Moshtohor P.O. Box 13736, Egypt
| | - Rong Zhou
- Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, 63 Chifeng Road, Yangpu District, Shanghai 200092, China
| | - Ronghai He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Correspondence: ; Tel./Fax: +86-(511)-8878-0201
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
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14
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Kim SS, Heo J, Kwak HS. Effects of aging salt concentrations on metabolite profiles and their correlation with consumer acceptance in Korean traditional
doenjang
(fermented soybean paste). Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sang Sook Kim
- Research Group of Food Processing Korea Food Research Institute 55365 Wanju‐gun Republic of Korea
| | - JeongAe Heo
- Food Convergence Infrastructure Team Korea Food Research Institute 55365 Wanju‐gun Republic of Korea
| | - Han Sub Kwak
- Research Group of Food Processing Korea Food Research Institute 55365 Wanju‐gun Republic of Korea
- KFRI School University of Science and Technology 55465 Wanju‐gun Republic of Korea
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15
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Roles of sunlight exposure on chemosensory characteristic of broad bean paste by untargeted profiling of volatile flavors and multivariate statistical analysis. Food Chem 2022; 381:132115. [DOI: 10.1016/j.foodchem.2022.132115] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 11/19/2022]
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16
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Chen Y, Qin F, Dong M. Dynamic Changes in Microbial Communities and Physicochemical Characteristics During Fermentation of Non-post Fermented Shuidouchi. Front Nutr 2022; 9:926637. [PMID: 35769377 PMCID: PMC9235352 DOI: 10.3389/fnut.2022.926637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/23/2022] [Indexed: 11/20/2022] Open
Abstract
Non-post fermented Shuidouchi is a Chinese spontaneously fermented soybean food with multifunctionality in human health. The functionality and safety of this plant-based food will be affected by the microorganisms during fermentation. In this study, microbial diversity was investigated using culture-dependent and culture-independent methods. The functional metabolites such as polyamines and alkylpyrazines were also determined at different time points during fermentation. We found that Bacillus was the most dominant microbe throughout the fermentation process, while the temperature was the most important influencing factor. During fermentation, the microbial diversity increased at a moderate temperature and decreased at a high temperature (52°C). High temperature caused the prosperity of the spore-producing bacteria such as Bacillus (more than 90% relative abundance in bacteria) and Aneurinibacillus (2% or so relative abundance in bacteria), and the inhibition of fungi. Furthermore, it was found by correlation analysis that the relative abundances of Bacillus and Aneurinibacillus were positively correlated with the relative content of amino acid metabolism pathway and the content of most alkylpyrazines and biogenic amines. Meanwhile, the relative abundances of many non-dominant bacteria were negatively correlated with the content of biogenic amines and positively correlated with the relative content of carbohydrate metabolism pathway. These effects were helpful to control the biogenic amine contents under the safety limits, increasing the alkylpyrazine type and product functionality. A two-stage temperature control strategy—a moderate temperature (35–42°C) first, then a high temperature (52°C)—was concluded from the spontaneous fermentation of non-post fermented Shuidouchi. This strategy could improve the safety of product by inhibiting or sterilizing the thermolabile microbes. The non-post fermented Shuidouchi product is rich in functional compounds such as polyamines and alkylpyrazines.
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Affiliation(s)
- Yuyong Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
- Jiangsu Agri-Animal Husbandry Vocational College, Taizhou, China
| | - Feng Qin
- Jiangsu Agri-Animal Husbandry Vocational College, Taizhou, China
| | - Mingsheng Dong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
- *Correspondence: Mingsheng Dong,
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17
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Bacterial communities in home-made Doushen with and without chili pepper. Food Res Int 2022; 156:111321. [PMID: 35651075 DOI: 10.1016/j.foodres.2022.111321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/24/2022]
Abstract
Doushen is a traditional Chinese fermented soybean product prepared with sterilizated soybeans under open conditions. However, little is known on the bacterial community and their influence on the flavor of Doushen. In the present study, Doushen samples with and without chili pepper were collected to reveal the bacterial community and assess a correlation between bacterial community and VFCs in the two kinds of Doushen samples. We identified four phyla and 97 bacterial genera in the two kinds of Doushen samples. In addition, a total of 17 significantly different OTUs were detected by LEfSe (Line Discriminant Analysis (LDA) Effect Size). Results of Principal coordinates analysis (PCoA), unweighted pair-group method (UPGMA) and functional and phenotypes prediction showed that bacterial communities in the two kinds of Doushen were significantly different. Spearman correlation analysis showed that all the dominant genera, except Clostridium Sensu stricto 1, were significantly correlated with the characteristic VFCs. This study provides a theoretical basis for improving the flavour quality of traditional homemade Doushen.
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18
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Tallei TE, Fatimawali, Yelnetty A, Kusumawaty D, Effendi Y, Park MN, Alhumaydhi FA, Emran TB, Kim B. Predictive Microbial Community and Functional Gene Expression Profiles in Pineapple Peel Fermentation Using 16S rRNA Gene Sequences. FERMENTATION-BASEL 2022; 8:194. [DOI: 10.3390/fermentation8050194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Pineapple peel (PP) is a by-product with the potential to be used as a raw material for functional beverages. Traditional PP fermentation has so far paid little attention to the microbial community and its role in the fermentation process. As a result, the current research looked into the microbial communities and their roles during PP fermentation. A metagenomic approach based on the 16S rRNA sequencing data was used to assess the microbial communities. Subsequent analysis was performed using PICRUSt (phylogenetic investigation of communities by reconstruction of unobserved states) to analyze the microbial functions in the fermentation system. The microecology of the fermentation process in three samples was predominated by Firmicutes. Furthermore, the well-known probiotic genera Weissella, Lactobacillus, and Lactococcus were found to be predominating in the gumer, promic, and control samples, respectively. It was obvious that microenvironmental differences have an effect on the microbial composition of PP fermentation. Moreover, functional prediction revealed that carbohydrate metabolism was the most prevalent metabolic pathway during the fermentation process. Additionally, it was discovered that all of the bacteria found in the samples played significant roles in carbohydrate, amino acid, vitamin, and co-factor metabolism, which can be inferred to result in the production of beneficial metabolites.
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19
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Ling H, Shi H, Chen X, Cheng K. Detection of the microbial diversity and flavour components of northeastern Chinese soybean paste during storage. Food Chem 2022; 374:131686. [PMID: 34906801 DOI: 10.1016/j.foodchem.2021.131686] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/05/2021] [Accepted: 11/23/2021] [Indexed: 11/17/2022]
Abstract
A combination of 16S rDNA and GC-IMS was used to study the changes in the composition of microorganisms and volatile organic compounds (VOCs) during the storage of northeastern Chinese soybean paste. Firmicutes and Actinobacteriota dominated the microbial communities of the soybean paste at the phylum level, bacterial profiles of different samples were different at genus level. Fifty-one VOCs were identified from soybean paste, most of which existed in the early storage stage. Most esters and alcohols decreased with the extension of the storage time, while acids and pyrazines accumulated in the later period of storage. Esters, alcohols, acids and aldehyde compounds are the key substances in the volatile components of soybean paste, which give the soybean paste the sour, sweet, rose, mushroom and smoky flavor characteristics. The biomarker Bacillus-velezensis in soybean paste is directly related to ester features; Kroppenstedtia, Sporolactobacillus-nakayamae, and Corynebacterium-stationis are positively associated with the biosynthesis of aldehydes.
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Affiliation(s)
- Hongzhi Ling
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150500, China
| | - Huiling Shi
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150500, China
| | - Xiaochun Chen
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China; Dongguan Institute of Technology Innovation, Dongguan 523000, China
| | - Keke Cheng
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China.
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20
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Ding R, Li M, Zou Y, Wang Y, Yan C, Zhang H, Wu R, Wu J. Effect of normal and strict anaerobic fermentation on physicochemical quality and metabolomics of yogurt. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2021.101368] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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21
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Zhao S, Niu C, Xing X, Fan L, Zheng F, Liu C, Wang J, Li Q. Revealing the changes of microbiota structure and function in broad bean paste mediated by sunlight and ventilation. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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22
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Wei G, Zhao Q, Shi Y, Huang A. Characteristic flavour compounds and formation of Chinese Rubing cheese: Comparative study between two different acidification technologies. INT J DAIRY TECHNOL 2022. [DOI: 10.1111/1471-0307.12851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Guangqiang Wei
- College of Food Science and Technology Yunnan Agricultural University Kunming Yunnan 650201 China
| | - Qiong Zhao
- College of Food Science and Technology Yunnan Agricultural University Kunming Yunnan 650201 China
| | - Yanan Shi
- College of Food Science and Technology Yunnan Agricultural University Kunming Yunnan 650201 China
| | - Aixiang Huang
- College of Food Science and Technology Yunnan Agricultural University Kunming Yunnan 650201 China
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23
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Comparison of Fermentation Behaviors and Characteristics of Tomato Sour Soup between Natural Fermentation and Dominant Bacteria-Enhanced Fermentation. Microorganisms 2022; 10:microorganisms10030640. [PMID: 35336215 PMCID: PMC8954891 DOI: 10.3390/microorganisms10030640] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 12/22/2022] Open
Abstract
In this study, the correlations between microbial communities with physicochemical properties and volatile flavor compounds (VFCs) during the fermentation of traditional tomato sour soup (CTN) are explored. The results of high-throughput sequencing (HTS) of CTN showed that Lacticaseibacillus (28.67%), Enterobacter (12.37%), and Providencia (12.19%) were the dominant bacteria in the first round of fermentation, while Lacticaseibacillus (50.11%), Enterobacter (13.86%), and Providencia (8.61%) were the dominant bacteria in the second round of fermentation. Additionally, the dominant fungi genera of the first fermentation were Pichia (65.89%) and Geotrichum (30.56%), and the dominant fungi genera of the second fermentation were Pichia (73.68%), Geotrichum (13.99%), and Brettanomyces (5.15%). These results indicate that Lacticaseibacillus is one of the main dominant bacteria in CTN. Then, the dominant strain Lacticaseibacillus casei H1 isolated from CTN was used as a culture to ferment tomato sour soup to monitor dynamic changes in the physicochemical properties and VFCs during enhanced fermentation of tomato sour soup (TN). The physicochemical analysis showed that, compared with CTN, the TN group not only produced acid faster but also had an earlier peak of nitrite and a lower height. The results of the GC–IMS analysis showed that the ester and alcohol contents in the TN group were 1.26 times and 1.8 times that of the CTN group, respectively. Using an O2PLS-DA analysis, 11 bacterial genera and 18 fungal genera were identified as the functional core flora of the CTN group flavor production, further verifying the importance of dominant bacteria for the production of VFCs. This study proved that enhanced fermentation not only shortens the fermentation cycle of tomato sour soup, but also significantly improves its flavor quality, which has great value in the industrial production of tomato sour soup and in the development of a vegetable fermentation starter.
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24
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Ye Z, Shang Z, Zhang S, Li M, Zhang X, Ren H, Hu X, Yi J. Dynamic analysis of flavor properties and microbial communities in Chinese pickled chili pepper (Capsicum frutescens L.): A typical industrial-scale natural fermentation process. Food Res Int 2022; 153:110952. [DOI: 10.1016/j.foodres.2022.110952] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/13/2021] [Accepted: 01/10/2022] [Indexed: 01/03/2023]
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25
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Wang C, Wei S, Jin M, Liu B, Yue M, Wang Y. Integrated Microbiomic and Metabolomic Dynamics of Fermented Corn and Soybean By-Product Mixed Substrate. Front Nutr 2022; 9:831243. [PMID: 35299761 PMCID: PMC8922052 DOI: 10.3389/fnut.2022.831243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/21/2022] [Indexed: 01/26/2023] Open
Abstract
Microbes and their metabolites produced in fermented food have been considered as critical contributors to the quality of the final products, but the comprehensive understanding of the microbiomic and metabolomic dynamics in plant-based food during solid-state fermentation remains unclear. Here, the probiotics of Bacillus subtilis and Enterococcus faecalis were inoculated into corn and defatted soybean to achieve the two-stage solid-state fermentation. A 16S sequencing and liquid chromatography–tandem mass spectrometry were applied to investigate the dynamics of microbiota, metabolites, and their integrated correlations during fermentation. The results showed that the predominant bacteria changed from Streptophyta and Rickettsiales at 0 h to Bacillus and Pseudomonas in aerobic stage and then to Bacillus, Enterococcus, and Pseudomonas in anaerobic stage. In total, 229 notably different metabolites were identified at different fermentation times, and protein degradation, amino acid synthesis, and carbohydrate metabolism were the main metabolic pathways during the fermentation. Notably, phenylalanine metabolism was the most important metabolic pathway in the fermentation process. Further analysis of the correlations among the microbiota, metabolites, and physicochemical characteristics indicated that Bacillus spp. was significantly correlated with amino acids and carbohydrate metabolism in aerobic stage, and Enterococcus spp. was remarkably associated with amino acids metabolism and lactic acid production in the anaerobic stage. The present study provides new insights into the dynamic changes in the metabolism underlying the metabolic and microbial profiles at different fermentation stages, and are expected to be useful for future studies on the quality of fermented plant-based food.
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Affiliation(s)
- Cheng Wang
- National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
- Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Siyu Wei
- National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
- Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Mingliang Jin
- National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
- Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Bojing Liu
- National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
- Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Min Yue
- Institute of Preventive Veterinary Sciences and Department of Veterinary Medicine, Zhejiang University College of Animal Sciences, Hangzhou, China
| | - Yizhen Wang
- National Engineering Laboratory for Feed Safety and Pollution Prevention and Controlling, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
- Institute of Feed Science, Zhejiang University, Hangzhou, China
- *Correspondence: Yizhen Wang
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26
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Comparative evaluation of the effects of natural and artificial inoculation on soybean paste fermentation. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112936] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Xia AN, Liu LX, Tang XJ, Lei SM, Meng XS, Liu YG. Dynamics of microbial communities, physicochemical factors and flavor in rose jam during fermentation. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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28
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Wang Y, Zhang C, Liu F, Jin Z, Xia X. Ecological succession and functional characteristics of lactic acid bacteria in traditional fermented foods. Crit Rev Food Sci Nutr 2022; 63:5841-5855. [PMID: 35014569 DOI: 10.1080/10408398.2021.2025035] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Fermented foods are important parts of traditional food culture with a long history worldwide. Abundant nutritional materials and open fermentation contribute to the diversity of microorganisms, resulting in unique product quality and flavor. Lactic acid bacteria (LAB), as important part of traditional fermented foods, play a decisive role in the quality and safety of fermented foods. Reproduction and metabolic of microorganisms drive the food fermentation, and microbial interaction plays a major role in the fermentation process. Nowadays, LAB have attracted considerable interest due to their potentialities to add functional properties to certain foods or as supplements along with the research of gut microbiome. This review focuses on the characteristics of diversity and variability of LAB in traditional fermented foods, and describes the principal mechanisms involved in the flavor formation dominated by LAB. Moreover, microbial interactions and their mechanisms in fermented foods are presented. They provide a theoretical basis for exploiting LAB in fermented foods and improving the quality of traditional fermented foods. The traditional fermented food industry should face the challenge of equipment automation, green manufacturing, and quality control and safety in the production.
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Affiliation(s)
- Yingyu Wang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, WuXi, China
| | - Chenhao Zhang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, WuXi, China
| | | | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, WuXi, China
| | - Xiaole Xia
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, WuXi, China
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29
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Volatile compounds, bacteria compositions and physicochemical properties of 10 fresh fermented rice noodles from southern China. Food Res Int 2021; 150:110787. [PMID: 34865802 DOI: 10.1016/j.foodres.2021.110787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/08/2021] [Accepted: 10/24/2021] [Indexed: 01/15/2023]
Abstract
To clarify the discrepancy in characteristic flavor and bacteria composition of 10 fresh fermented rice noodles from southern China, the volatile and bacteria composition were determined by headspace-gas chromatography ion mobility spectrometry and 16SrRNA sequencing methods. The potential relationship between volatile compounds and bacterial composition has also been further revealed using spearman's correlation analysis. The contents of proximate composition, cooking properties and texture properties of 10 fresh fermented rice noodles exhibited significant different among them (p < 0.05). The flavor analysis showed that a total of 54 compounds were detected. 1-Octen-one, ethyl 3-methylbutanoate, 3-methylbutanal, n-nonanal, hexanal, amyl acetate, ethanol and 2-pentyl furan were the key volatiles among them. The bacterial analysis showed that Leuconostoc and Lactococcus were the core bacteria at the genu level of all samples. Amyl acetate, 2-butanone and methyl-2-methylpropanoate were positively related to Lactococcus while ethanol was negatively correlated with Lactococcus. And Leuconostoc was positively related to 3-methylbutanal and acetone, while was negatively correlated with hexanal. Results indicated that key volatiles and textural properties of different fresh fermented rice noodle samples were associated with bacterial composition.
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30
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Ye H, Lang X, Ji Y, Li S, Xin N, Meng X, Zhang T, Shen X, Zhao C. The interaction between Lactobacillus plantarum SC-5 and its biogenic amine formation with different salt concentrations in Chinese Dongbei Suancai. Food Res Int 2021; 150:110813. [PMID: 34863503 DOI: 10.1016/j.foodres.2021.110813] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/25/2021] [Accepted: 11/09/2021] [Indexed: 01/09/2023]
Abstract
Dongbei Suancai (DBSC) - a Chinese cabbage-based sauerkraut is a traditional fermented food which is popular in Asian countries. The biogenic amines that are usually generated during spontaneous fermentation have raised public health concern, while inoculation technology may solve this problem. In the current research, the biogenic amines, as well as their interactions with the microbial community in DBSC inoculated with Lactobacillus plantarum SC-5 or spontaneously fermented without inoculation were systematically investigated throughout 60 d fermentation. High-performance liquid chromatography analysis showed that the predominant biogenic amines in DBSC including putrescine, tyramine, spermidine, cadaverine and histamine increased during fermentation. Inoculated DBSC had a significantly lower content of total biogenic amines than the spontaneously fermented DBSC (216.72-237.33 mg/kg vs. 234.62-266.81 mg/kg) during 60 days' fermentation (P < 0.05). High throughput sequencing based on 16S rDNA identified 70 species in the bacterial community belonging to 7 genera of lactic acid bacteria, of which Lactobacillus, Leuconostoc and Lactococcus were dominant. Furthermore, six common genera of bacteria were positively correlated with biogenic amines based on Spearman's rank correlation test. Notably, the abundance of Lactobacillus plantarum SC-5 was negatively correlated with the content of biogenic amines in DBSC. In conclusion, inoculation of the proper starter like Lactobacillus plantarum SC-5 can reduce total biogenic amines in DBSC possibly by modifying the microbial communities in the fermented sauerkraut, which provides practical guidance for industrial production of high quality DBSC.
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Affiliation(s)
- Haiqing Ye
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China
| | - Xinsong Lang
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China
| | - Yaoyao Ji
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China
| | - Shengnan Li
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China
| | - Naicheng Xin
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China
| | - Xiangren Meng
- School of Food Science and Engineering, Yangzhou University, 196 Huayangxi Road, Yangzhou 225127, China
| | - Tiehua Zhang
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China
| | - Xue Shen
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China.
| | - Changhui Zhao
- College of Food Science and Engineering, Jilin University, 5333 Xi'an Road, Changchun 130062, China.
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31
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Ding W, Ye X, Zhao X, Liu Y, Zhang M, Luo Y, Xiong Y, Liu Y, Che Z, Lin H, Huang J, Tang X. Fermentation characteristics of Pixian broad bean paste in closed system of gradient steady-state temperature field. Food Chem 2021; 374:131560. [PMID: 34848085 DOI: 10.1016/j.foodchem.2021.131560] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/04/2021] [Accepted: 11/07/2021] [Indexed: 11/04/2022]
Abstract
A closed system of gradient steady-state temperature field (GSTF) was constructed to ferment Pixian broad bean paste (PBP). The contents of physicochemical factors and organic acids in the fermentation under GSTF (FG) were closer to those in the traditional fermentation (TF). The taste intensities of 8 free amino acids in the FG were higher than those in the constant temperature fermentation (CTF), but 14 in the TF showed the highest among the processes of FG, CTF and TF. The FG product had the most volatiles with 87, and its flavor properties were more stable. The FG produced great effects on the microbe evolutions especially improved the fungal diversity. Bacillus were identified as the core microbes in the FG while the roles of Staphylococcus, Lactobacillus and Pantoea were strengthened. The results indicated that the fermentation characteristics in the FG had been further improved compared with the CTF.
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Affiliation(s)
- Wenwu Ding
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China.
| | - Xiaoqing Ye
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Xiaoyan Zhao
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China; Sichuan Pixian Douban Company Limited, Chengdu 611730, China
| | - Yan Liu
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Manna Zhang
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yifei Luo
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yuanru Xiong
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yi Liu
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Zhenming Che
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Hongbin Lin
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Jiaquan Huang
- Sichuan Pixian Douban Company Limited, Chengdu 611730, China
| | - Xiaoyu Tang
- Institute of Modern Agricultural Equipment, Xihua University, Chengdu 610039, China.
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32
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Zhao S, Niu C, Suo J, Zan Y, Wei Y, Zheng F, Liu C, Wang J, Li Q. Unraveling the mystery of ‘bask in daytime and dewed at night’ technique in doubanjiang (broad bean paste) fermentation. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111723] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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33
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Ding W, Zhao X, Xie S, Liu Y, Zhang M, Che Z, Liu Y, Liu P, Lin H. Dynamics and correlation of microbial community and flavor in Pixian Douban fermented with closed process of constant temperature. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:4142-4153. [PMID: 33368355 DOI: 10.1002/jsfa.11050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/30/2020] [Accepted: 12/26/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND As a Chinese traditional flavor condiment, Pixian Douban (PXDB) is produced using a traditional open fermentation process. In this study, an experimental fermentation of PXDB was conducted at 40 °C for 90 days in a closed system, which has not been applied to PXDB production. The flavor, microbial community and correlations of the samples in the closed system were compared with those in the traditional fermentation. RESULTS The content of organic acids and free amino acids in the closed fermentation of constant temperature (CFCT) achieved the standards of product quality, although they were lower than those in the traditional fermentation. Of the 140 detected aroma components, 98 were shared in the two fermentation processes. Enterobacter, Bacteroides and Megamonas were the core microbial genera related to 26 flavor components in the traditional fermentation, while Pantoea was the core microbial genus related to 18 flavor components in CFCT. The CFCT has its own unique advantages over traditional fermentation in forming aromas. It produced a greater impact on the succession of fungi than those of bacteria after changing traditional fermentation to CFCT. The influence of microorganisms on the formation of flavor components was relatively more balanced in CFCT, while the changed fermentation process impacted greatly on the functions of Zygosaccharomomyces and Pichia but little on those of Sphingomonas, Megamonas and Parabacteroides. CONCLUSION The study indicated that it was feasible to ferment PXDB in the closed system, and provides a basis to realize controllable PXDB production. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Wenwu Ding
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Xiaoyan Zhao
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Si Xie
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Yan Liu
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Manna Zhang
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Zhenming Che
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Yi Liu
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Ping Liu
- College of Food and Bioengineering, Xihua University, Chengdu, China
| | - Hongbin Lin
- College of Food and Bioengineering, Xihua University, Chengdu, China
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Deciphering Bacterial Community Structure, Functional Prediction and Food Safety Assessment in Fermented Fruits Using Next-Generation 16S rRNA Amplicon Sequencing. Microorganisms 2021; 9:microorganisms9081574. [PMID: 34442653 PMCID: PMC8401261 DOI: 10.3390/microorganisms9081574] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 01/02/2023] Open
Abstract
Fermented fruits and vegetables play an important role in safeguarding food security world-wide. Recently, robust sequencing-based microbial community analysis platforms have improved microbial safety assessment. This study aimed to examine the composition of bacteria and evaluate the bacterial safety of fermented fruit products using high-throughput 16S-rRNA metagenomic analysis. The operational taxonomic unit-based taxonomic classification of DNA sequences revealed 53 bacterial genera. However, the amplicon sequencing variant (ASV)-based clustering revealed 43 classifiable bacterial genera. Taxonomic classifications revealed that the abundance of Sphingomonas, which was the predominant genus in the majority of tested samples, was more than 85–90% among the total identified bacterial community in most samples. Among these identified genera, 13 low abundance genera were potential opportunistic pathogens, including Acinetobacter, Bacillus, Staphylococcus, Clostridium, Klebsiella, Mycobacterium, Ochrobactrum, Chryseobacterium, Stenotrophomonas, and Streptococcus. Of these 13 genera, 13 major opportunistic pathogenic species were validated using polymerase chain reaction. The pathogens were not detected in the samples of different stages and the final products of fermentation, except in one sample from the first stage of fermentation in which S. aureus was detected. This finding was consistent with that of ASV-based taxonomic classification according to which S. aureus was detected only in the sample from the first stage of fermentation. However, S. aureus was not significantly correlated with the human disease pathways. These results indicated that fermentation is a reliable and safe process as pathogenic bacteria were not detected in the fermentation products. The hybrid method reported in this study can be used simultaneously to evaluate the bacterial diversity, their functional predictions and safety assessment of novel fermentation products. Additionally, this hybrid method does not involve the random detection of pathogens, which can markedly decrease the time of detection and food safety verification. Furthermore, this hybrid method can be used for the quality control of products and the identification of external contamination.
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35
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Ryu JA, Kim E, Yang SM, Lee S, Yoon SR, Jang KS, Kim HY. High-throughput sequencing of the microbial community associated with the physicochemical properties of meju (dried fermented soybean) and doenjang (traditional Korean fermented soybean paste). Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111473] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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36
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Ding W, Liu Y, Zhao X, Peng C, Ye X, Che Z, Liu Y, Liu P, Lin H, Huang J, Xu M. Characterization of volatile compounds of Pixian Douban fermented in closed system of gradient steady-state temperature field. Food Sci Nutr 2021; 9:2862-2876. [PMID: 34136154 PMCID: PMC8194942 DOI: 10.1002/fsn3.2242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 11/22/2022] Open
Abstract
As an essential flavor condiment in Sichuan cuisine, Pixian Douban (PXDB) is usually produced by open fermentation process in strip pools or ceramic vats. In this study, an experiment of PXDB fermentation was conducted for 90 days in a closed system of gradient steady-state temperature field (GSTF). To investigate the characterization of volatile compounds of PXDB in the closed system, the volatiles in three kinds of samples including samples of GSTF (SGT), samples of constant temperature (SCT), and samples of traditional fermentation (STF) were analyzed. The results showed that 75, 67, and 68 volatile compounds were detected in SGT, SCT, and STF, respectively. Compared with the traditional fermentation, the process in the closed system of GSTF was conducive to produce more kinds of esters and alcohols. A total of 22 major aroma active compounds were identified in three samples by combination analyses of gas chromatography-olfactometry (GC-O) and odor activity value (OAV). The appearance, smell, texture, and taste of the three different samples had shown different changes, but the sensory characteristics of the SGT were more similar to those of the STF by quantitative descriptive analysis (QDA) and principal component analysis (PCA). This study indicated that the closed system of GSTF could be applied in PXDB fermentation to obtain higher quality products, which brought a bright prospect of replacing the traditional fermentation process to realize the controllable industrialized production of PXDB.
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Affiliation(s)
- Wenwu Ding
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Yan Liu
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Xiaoyan Zhao
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Changbo Peng
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Xiaoqing Ye
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Zhenming Che
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Yi Liu
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Ping Liu
- College of Food and BioengineeringXihua UniversityChengduChina
| | - Hongbin Lin
- College of Food and BioengineeringXihua UniversityChengduChina
| | | | - Min Xu
- College of Food and BioengineeringXihua UniversityChengduChina
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37
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Wu J, Yan D, Liu Y, Luo X, Li Y, Cao C, Li M, Han Q, Wang C, Wu R, Zhang L. Purification, Structural Characteristics, and Biological Activities of Exopolysaccharide Isolated From Leuconostoc mesenteroides SN-8. Front Microbiol 2021; 12:644226. [PMID: 33841368 PMCID: PMC8033024 DOI: 10.3389/fmicb.2021.644226] [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: 12/20/2020] [Accepted: 03/02/2021] [Indexed: 11/13/2022] Open
Abstract
In this study, a novel exopolysaccharide (EPS) was extracted from Leuconostoc mesenteroides Shen Nong's (SN)-8 which can be obtained from Dajiang. After the purification step, EPS-8-2 was obtained with molecular weights of 1.46 × 105 Da. The structural characterization of EPS indicated that the EPS belonged to the class polysaccharide, mainly composed of glucan and also contained certain mannose residues that were found to be connected by α-1,6 glycosidic bonds. Moreover, the results demonstrated that EPS displayed a significant capacity to scavenge free radical to some extent, and this anti-oxidant potential was found to be concentration dependent. The results further revealed that EPS displayed a significant inhibitory potential on the growth of HepG2 cells by promoting apoptosis and induced cell cycle arrest in G1 and G2 phases. Overall, these results suggested that EPS can be explored as a possible anti-cancer agent.
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Affiliation(s)
- Junrui Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Danli Yan
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Yumeng Liu
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Xue Luo
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Yang Li
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Chengxu Cao
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Mo Li
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Qi Han
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Cong Wang
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Lanwei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
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38
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Song Z, Hu Y, Chen X, Li G, Zhong Q, He X, Xu W. Correlation between bacterial community succession and propionic acid during gray sufu fermentation. Food Chem 2021; 353:129447. [PMID: 33714122 DOI: 10.1016/j.foodchem.2021.129447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 02/20/2021] [Accepted: 02/21/2021] [Indexed: 01/25/2023]
Abstract
In order to explore the correlation between the production of propionic acid (PA) and the succession of bacterial community during the fermentation of gray sufu, high-throughput sequencing and HPLC (High Performance Liquid Chromatography) were used to monitor the changes of bacterial community and metabolite content. The abundance and metabolite concentration of Propionibacterium increased rapidly in the early stage of fermentation. In the middle stage, the abundance of Lactobacillus began to increase, while the pH decreased rapidly. In the late stage, the concentration of PA began to decrease, but it remained at a high level at the end of fermentation. Correlation analysis showed that Lactobacillus and Bacillus had a strong negative correlation with PA and its precursor. The results showed that Fusobacterium, Providencia, Lactobacillus and Bacillus could be the key factors to reduce the PA content. This study provides a new idea for the quality control of traditional fermented food.
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Affiliation(s)
- Zhengyang Song
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; China National Institute of Food and Fermentation Industries, Beijing 100015, China
| | - Yanzhou Hu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xu Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Guohui Li
- China National Institute of Food and Fermentation Industries, Beijing 100015, China
| | - Qiding Zhong
- China National Institute of Food and Fermentation Industries, Beijing 100015, China.
| | - Xiaoyun He
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Wentao Xu
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), College of Food Science and Nutritional Engineering, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China.
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39
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Hu Y, Wang H, Kong B, Wang Y, Chen Q. The succession and correlation of the bacterial community and flavour characteristics of Harbin dry sausages during fermentation. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110689] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Yue X, Li M, Liu Y, Zhang X, Zheng Y. Microbial diversity and function of soybean paste in East Asia: what we know and what we don’t. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2020.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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41
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Potential correlation between volatiles and microbiome of Xiang xi sausages from four different regions. Food Res Int 2021; 139:109943. [DOI: 10.1016/j.foodres.2020.109943] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 11/08/2020] [Accepted: 11/27/2020] [Indexed: 12/30/2022]
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42
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Hu Y, Zhang L, Wen R, Chen Q, Kong B. Role of lactic acid bacteria in flavor development in traditional Chinese fermented foods: A review. Crit Rev Food Sci Nutr 2020; 62:2741-2755. [PMID: 33377402 DOI: 10.1080/10408398.2020.1858269] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Traditional Chinese fermented foods are favored by consumers due to their unique flavor, texture and nutritional values. A large number of microorganisms participate in the process of fermentation, especially lactic acid bacteria (LAB), which are present in almost all fermented foods and contribute to flavor development. The formation process of flavor is complex and involves the biochemical conversion of various food components. It is very important to fully understand the conversion process to direct the flavor formation in foods. A comprehensive link between the LAB community and the flavor formation in traditional Chinese fermented foods is reviewed. The main mechanisms involved in the flavor formation dominated by LAB are carbohydrate metabolism, proteolysis and amino acid catabolism, and lipolysis and fatty acid metabolism. This review highlights some useful novel approaches for flavor enhancement, including the application of functional starter cultures and metabolic engineering, which may provide significant advances toward improving the flavor of fermented foods for a promising market.
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Affiliation(s)
- Yingying Hu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Lang Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Rongxin Wen
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Qian Chen
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
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43
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Metatranscriptome-based investigation of flavor-producing core microbiota in different fermentation stages of dajiang, a traditional fermented soybean paste of Northeast China. Food Chem 2020; 343:128509. [PMID: 33199116 DOI: 10.1016/j.foodchem.2020.128509] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 12/30/2022]
Abstract
Dajiang, or naturally fermented soybean paste, has a unique flavor that is influenced by the resident microflora. However, the association between flavor and the core microbiota is unclear. Recent advances in RNA sequencing have identified genes that are actively expressed in complex microbial communities. To this end, we analyzed the time-dependent changes in the microbiota and the metabolite profiles of Dajiang using metatranscriptome sequencing, HS-SPME-GC-MS and amino acid analysis identified 10 volatile compounds that contribute to the development of soybean paste flavor. Further analysis of the correlation between the active microorganisms and the physicochemical characteristics and flavor substances in soybean paste indicated that Lactobacillus and Tetragenococcus were the core genera affecting chromaticity and flavor. These microorganisms produce enzymes that catalyze a series of metabolic pathways that generate flavor substances. Our findings provide new insights into the role of the microbiota in the development of flavor in fermented foods.
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44
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He W, Chung HY. Exploring core functional microbiota related with flavor compounds involved in the fermentation of a natural fermented plain sufu (Chinese fermented soybean curd). Food Microbiol 2020; 90:103408. [DOI: 10.1016/j.fm.2019.103408] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 11/24/2019] [Accepted: 12/21/2019] [Indexed: 01/01/2023]
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45
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Purification, characterization and antitumor activity of an exopolysaccharide produced by Bacillus velezensis SN-1. Int J Biol Macromol 2020; 156:354-361. [DOI: 10.1016/j.ijbiomac.2020.04.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/04/2020] [Accepted: 04/04/2020] [Indexed: 12/15/2022]
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46
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Xie M, An F, Zhao Y, Wu R, Wu J. Metagenomic analysis of bacterial community structure and functions during the fermentation of da-jiang, a Chinese traditional fermented food. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109450] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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47
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Lin LJ, Du FM, Zeng J, Liang ZJ, Zhang XY, Gao XY. Deep insights into fungal diversity in traditional Chinese sour soup by Illumina MiSeq sequencing. Food Res Int 2020; 137:109439. [PMID: 33233120 DOI: 10.1016/j.foodres.2020.109439] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/28/2020] [Accepted: 06/12/2020] [Indexed: 11/16/2022]
Abstract
Sour soup is a traditional condiment in Guizhou Province, China. The purpose of this study was to investigate the differences in the fungi present in 5 types of sour soup (tomato sour soup, chili sour soup, cherry tomato sour soup, spoiled tomato sour soup, and red sour soup made from blended tomato and chili sour soup subjected to secondary fermentation) and to determine the reasons for the deterioration of tomato sour soup by comparing the fungal communities in normal and deterioratedtomato sour soup. A total of 5 phyla were detected in all 5 samples, including Ascomycota (69.38%), Basidiomycota (7.63%), Zygomycota (1.59%), Chytridiomycota (0.01%) and unclassified phyla (21.39%). Ascomycota was the main phylum in each sample except the red sour soup made from blended tomato and chili sour soup subjected to secondary fermentation. That sour soup contained many unrecognized phyla. At the genus level, there were major differences among the different samples. Dekkera spp. and Pichia spp. were the main dominant fungus in tomato sour soup, Saccharomyces spp. and Pichia spp. were the dominant fungus in chili sour soup, and Pichia spp. were the dominant fungus in cherry tomato sour soup. When sour soup went bad, the fungus of sour soup changed greatly, and the unknown fungal genera, Cladospora spp., Saccharomyces spp. and Emericella spp. became the dominant fungal genera. In addition, after the secondary fermentation of tomato and chili sour soup mixed with garlic and ginger, the fungal genera of the base fermentation were replaced by unknown fungal genera. Moreover, there were various spoilage fungi in sour soup, which indicated that there were safety risks in naturally fermented sour soup and should be further controlled. This study revealed the fungal flora in sour soup made from different vegetables and compared the fungal diversity of spoiled and normal tomato sour soup and thereby provided a basis for understanding the fungal diversity of sour soup in China and guiding the production of sour soup.
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Affiliation(s)
- Liang-Jing Lin
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Fang-Min Du
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jian Zeng
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Zi-Jian Liang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiao-Yong Zhang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China.
| | - Xiang-Yang Gao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
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48
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A Bottom-Up Approach To Develop a Synthetic Microbial Community Model: Application for Efficient Reduced-Salt Broad Bean Paste Fermentation. Appl Environ Microbiol 2020; 86:AEM.00306-20. [PMID: 32303548 DOI: 10.1128/aem.00306-20] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/14/2020] [Indexed: 12/30/2022] Open
Abstract
Humans have used high salinity for the production of bean-based fermented foods over thousands of years. Although high salinity can inhibit the growth of harmful microbes and select functional microbiota in an open environment, it also affects fermentation efficiency of bean-based fermented foods and has a negative impact on people's health. Therefore, it is imperative to develop novel defined starter cultures for reduced-salt fermentation in a sterile environment. Here, we explored the microbial assembly and function in the fermentation of traditional Chinese broad bean paste with 12% salinity. The results revealed that the salinity and microbial interactions together drove the dynamic of community and pointed out that five dominant genera (Staphylococcus, Bacillus, Weissella, Aspergillus, and Zygosaccharomyces) may play different key roles in different fermentation stages. Then, core species were isolated from broad bean paste, and their salinity tolerance, interactions, and metabolic characteristics were evaluated. The results provided an opportunity to validate in situ predictions through in vitro dissection of microbial assembly and function. Last, we reconstructed the synthetic microbial community with five strains (Aspergillus oryzae, Bacillus subtilis, Staphylococcus gallinarum, Weissella confusa, and Zygosaccharomyces rouxii) under different salinities and realized efficient fermentation of broad bean paste for 6 weeks in a sterile environment with 6% salinity. In general, this work provided a bottom-up approach for the development of a simplified microbial community model with desired functions to improve the fermentation efficiency of bean-based fermented foods by deconstructing and reconstructing the microbial structure and function.IMPORTANCE Humans have mastered high-salinity fermentation techniques for bean-based fermented product preparation over thousands of years. High salinity was used to select the functional microbiota and conducted food fermentation production with unique flavor. Although a high-salinity environment is beneficial for suppressing harmful microbes in the open fermentation environment, the fermentation efficiency of functional microbes is partially inhibited. Therefore, application of defined starter cultures for reduced-salt fermentation in a sterile environment is an alternative approach to improve the fermentation efficiency of bean-based fermented foods and guide the transformation of traditional industry. However, the assembly and function of self-organized microbiota in an open fermentation environment are still unclear. This study provides a comprehensive understanding of microbial function and the mechanism of community succession in a high-salinity environment during the fermentation of broad bean paste so as to reconstruct the microbial community and realize efficient fermentation of broad bean paste in a sterile environment.
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Li Y, Wu J, Cao C, Zhu X, Sun X, Wu R. Effects of skim milk fermented with Lactobacillus plantarum WW on the constitutions of rats fed a high-fat diet. J Dairy Sci 2020; 103:5019-5029. [DOI: 10.3168/jds.2019-17560] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 02/12/2020] [Indexed: 12/18/2022]
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50
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Li Y, Liu Y, Cao C, Zhu X, Wang C, Wu R, Wu J. Extraction and biological activity of exopolysaccharide produced by Leuconostoc mesenteroides SN-8. Int J Biol Macromol 2020; 157:36-44. [PMID: 32339581 DOI: 10.1016/j.ijbiomac.2020.04.150] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/09/2020] [Accepted: 04/19/2020] [Indexed: 12/21/2022]
Abstract
An exopolysaccharide (EPS)-producing strain SN-8 isolated from Dajiang was identified as Leuconostoc mesenteroides. When sucrose was used as the carbon source for fermentation, the output of EPS was 2.42 g/L. High performance liquid chromatography analysis confirmed the presence of monomers such as glucan and mannose. The molecular weight detection value is 2.0 × 105 Da. Fourier transform infrared spectroscopy displayed the EPS had the basic skeleton and functional groups of a typical polysaccharide structure. Scanning electron microscopy showed smooth surfaces and compact structure. Thermal performance analysis showed that the highest heat resistance temperature of the EPS was 80 °C. Compared with vitamin C, its hydroxyl radical scavenging rate was as high as 32% and 1,1-diphenyl-2-picrylhydrazyl scavenging rate was as high as 40% under the same concentration. The peanut oil was the most emulsifiable at a concentration of 1.5 mg/mL, and the emulsification index was 0.55. These results might show that the EPS had high application value.
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Affiliation(s)
- Yang Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China.
| | - Yiming Liu
- College of Foreign Language, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Chengxu Cao
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - XinYuan Zhu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Cong Wang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China.
| | - Junrui Wu
- College of Foreign Language, Shenyang Agricultural University, Shenyang 110866, PR China.
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