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Wang X, Cai G, Wu D, Lu J. Correlation between the bacterial community succession and purine compound changes during Huangjiu fermentation. Food Microbiol 2024; 121:104522. [PMID: 38637084 DOI: 10.1016/j.fm.2024.104522] [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: 12/07/2023] [Revised: 03/13/2024] [Accepted: 03/16/2024] [Indexed: 04/20/2024]
Abstract
Purine is mainly culprit of hyperuricemia (HUA) and gout, which is widely present in Huangjiu in the form of free bases. Bacterial succession plays an important role in quality control in Huangjiu. The correlation between the purine compound content and the bacterial communities during the fermentation process has not yet been evaluated. In this study, high-throughput sequencing (HTS) technology was used to monitor the bacterial community composition of Huangjiu at different fermentation stages. The correlation between the bacterial community and the contents of physicochemical properties and purine compounds were evaluated using the Spearman analysis method. The key enzymes of purine metabolism pathway in the microbial community were analyzed by bioinformatics using Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt). The results showed that the purine content in Huangjiu increased gradually in 0∼9d of fermentation (21.05-65.71 mg/L), and stabilized gradually in 12∼18d (65.63-69.55 mg/L), while the abundance of lactic acid bacteria (LAB) of bacterial microbial flora were increased (0∼9d) and then stabilized (12∼18d). Moreover, Lactobacillus acetotolerans and Lactobacillus helveticus were highly correlated positively with purine contents, while Limosilactobacillus fermentum and Lactiplantibacillus plantarum were correlated negatively. In addition, the dominant strains of bacteria were involved in the metabolism of purine, and the key enzymes for purine compound synthesis were more abundant than that for purine degradation. This study is helpful to scientifically understand the formation mechanism of purines, providing a basis for screening functional strains of purine degrading to accurately regulate purine level in Huangjiu.
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Affiliation(s)
- Xianglin Wang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China; National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China.
| | - Guolin Cai
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China
| | - Dianhui Wu
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China.
| | - Jian Lu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China.
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2
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Chen X, Song C, Zhao J, Xiong Z, Peng L, Zou L, Shen C, Li Q. Application of Strain Selection Technology in Alcoholic Beverages: A Review. Foods 2024; 13:1396. [PMID: 38731767 PMCID: PMC11083718 DOI: 10.3390/foods13091396] [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: 04/07/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
The diversity of alcohol beverage microorganisms is of great significance for improving the brewing process and the quality of alcohol beverage products. During the process of making alcoholic beverages, a group of microorganisms, represented by yeast and lactic acid bacteria, conducts fermentation. These microorganisms have complex synergistic or competitive relationships, and the participation of different microorganisms has a major impact on the fermentation process and the flavor and aroma of the product. Strain selection is one of the key steps. Utilizing scientific breeding technology, the relationship between strains can be managed, the composition of the alcoholic beverage microbial community can be improved, and the quality and flavor of the alcoholic beverage products can be increased. Currently, research on the microbial diversity of alcohol beverages has received extensive attention. However, the selection technology for dominant bacteria in alcohol beverages has not yet been systematically summarized. To breed better-quality alcohol beverage strains and improve the quality and characteristics of wine, this paper introduces the microbial diversity characteristics of the world's three major brewing alcohols: beer, wine, and yellow wine, as well as the breeding technologies of related strains. The application of culture selection technology in the study of microbial diversity of brewed wine was reviewed and analyzed. The strain selection technology and alcohol beverage process should be combined to explore the potential application of a diverse array of alcohol beverage strains, thereby boosting the quality and flavor of the alcohol beverage and driving the sustainable development of the alcoholic beverage industry.
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Affiliation(s)
- Xiaodie Chen
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (X.C.); (Z.X.); (L.P.); (L.Z.)
| | - Chuan Song
- Luzhou Laojiao Co., Ltd., Luzhou 646000, China;
- National Engineering Research Center of Solid-State Brewing, Luzhou 646000, China
- Postdoctoral Research Station of Luzhou Laojiao Company, Luzhou 646000, China
| | - Jian Zhao
- School of Life Sciences, Sichuan University, Chengdu 610041, China;
| | - Zhuang Xiong
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (X.C.); (Z.X.); (L.P.); (L.Z.)
| | - Lianxin Peng
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (X.C.); (Z.X.); (L.P.); (L.Z.)
| | - Liang Zou
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (X.C.); (Z.X.); (L.P.); (L.Z.)
| | - Caihong Shen
- Luzhou Laojiao Co., Ltd., Luzhou 646000, China;
- National Engineering Research Center of Solid-State Brewing, Luzhou 646000, China
- Postdoctoral Research Station of Luzhou Laojiao Company, Luzhou 646000, China
| | - Qiang Li
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (X.C.); (Z.X.); (L.P.); (L.Z.)
- Postdoctoral Research Station of Luzhou Laojiao Company, Luzhou 646000, China
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3
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Yang Y, Li S, Xia Y, Wang G, Ni L, Zhang H, Ai L. Effects of different lactic acid bacteria on the characteristic flavor profiles of Chinese rice wine. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:421-430. [PMID: 37607217 DOI: 10.1002/jsfa.12935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND It has been well accepted that lactic acid bacteria (LAB) are the main bacterial genera present during the brewing of Chinese rice wine (CRW). LAB plays a decisive role in the flavor quality of CRW; however, its application in CRW has previously been overlooked. Therefore, effects of different LAB as co-fermenter on the flavor characteristics of CRW were investigated. RESULTS Co-fermentation of LAB increased the utilization rate of reducing sugar, concentration of lactic acid, amino acid nitrogen and total acidity, as well as the content of volatile flavor compounds. Different LAB doses had little effect on the flavor profiles of CRW, but the species of LAB greatly affected the flavor characteristic. The flavor of CRW co-fermented with Lactococcus lactis was characterized by long-chain fatty acid ethyl esters, while co-fermentation with Weissella confusa highlighted the ethyl esters of low molecular weight and short carbon chains in the resultant CRW. Alcohol compounds were dominant in the CRW co-fermented using Pediococcus pentosaceus. CONCLUSION The co-fermentation of LAB increased the number of volatile flavor compounds, especially esters. LAB exhibited great potential in the application of CRW industry to enrich the flavor characteristics and enhance the flavor diversity of the final product. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yijin Yang
- Shanghai Engineering Research Center of Food Microbiology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
| | - Shen Li
- Shanghai Engineering Research Center of Food Microbiology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
| | - Yongjun Xia
- Shanghai Engineering Research Center of Food Microbiology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
| | - Guangqiang Wang
- Shanghai Engineering Research Center of Food Microbiology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
| | - Li Ni
- Institute of Food Science and Technology, Fuzhou University, Fuzhou, People's Republic of China
| | - Hui Zhang
- Shanghai Jinfeng Wine Co. Ltd, Shanghai, People's Republic of China
| | - Lianzhong Ai
- Shanghai Engineering Research Center of Food Microbiology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, People's Republic of China
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4
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Chen G, Li W, Yang Z, Liang Z, Chen S, Qiu Y, Lv X, Ai L, Ni L. Insights into microbial communities and metabolic profiles in the traditional production of the two representative Hongqu rice wines fermented with Gutian Qu and Wuyi Qu based on single-molecule real-time sequencing. Food Res Int 2023; 173:113488. [PMID: 37803808 DOI: 10.1016/j.foodres.2023.113488] [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: 07/23/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/08/2023]
Abstract
Hongqu rice wine, a famous traditional fermented alcoholic beverage, is brewed with traditional Hongqu (mainly including Gutian Qu and Wuyi Qu). This study aimed to compare the microbial communities and metabolic profiles in the traditional brewing of Hongqu rice wines fermented with Gutian Qu and Wuyi Qu. Compared with Hongqu rice wine fermented with Wuyi Qu (WY), Hongqu rice wine fermented with Gutian Qu (GT) exhibited higher levels of biogenic amines. The composition of volatile flavor components of Hongqu rice wine brewed by different fermentation starters (Gutian Qu and Wuyi Qu) was obviously different. Among them, ethyl acetate, isobutanol, 3-methylbutan-1-ol, ethyl decanoate, ethyl palmitate, ethyl oleate, nonanoic acid, 4-ethylguaiacol, 5-pentyldihydro-2(3H)-furanone, ethyl acetate, n-decanoic acid etc. were identified as the characteristic aroma-active compounds between GT and WY. Microbiome analysis based on high-throughput sequencing of full-length 16S rDNA/ITS-5.8S rDNA amplicons revealed that Lactococcus, Leuconostoc, Pseudomonas, Serratia, Enterobacter, Weissella, Saccharomyces, Monascus and Candida were the predominant microbial genera during the traditional production of GT, while Lactococcus, Lactobacillus, Leuconostoc, Enterobacter, Kozakia, Weissella, Klebsiella, Cronobacter, Saccharomyces, Millerozyma, Monascus, Talaromyces and Meyerozyma were the predominant microbial genera in the traditional fermentation of WY. Correlation analysis revealed that Lactobacillus showed significant positive correlations with most of the characteristic volatile flavor components and biogenic amines. Furthermore, bioinformatical analysis based on PICRUSt revealed that microbial enzymes related to biogenic amines synthesis were more abundant in GT than those in WY, and the enzymes responsible for the degradation of biogenic amines were less abundant in GT than those in WY. Collectively, this study provides important scientific data for enhancing the flavor quality of Hongqu rice wine, and lays a solid foundation for the healthy and sustainable development of Hongqu rice wine industry.
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Affiliation(s)
- Guimei Chen
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China
| | - Wenlong Li
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian 362200, PR China
| | - Ziyi Yang
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian 362200, PR China
| | - Zihua Liang
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian 362200, PR China
| | - Shiyun Chen
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian 362200, PR China
| | - Yijian Qiu
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian 362200, PR China
| | - Xucong Lv
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian 362200, PR China.
| | - Lianzhong Ai
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Li Ni
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, PR China; Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian 362200, PR China.
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5
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Chen Y, Yang Y, Cai W, Zeng J, Liu N, Wan Y, Fu G. Research progress of anti-environmental factor stress mechanism and anti-stress tolerance way of Saccharomyces cerevisiae during the brewing process. Crit Rev Food Sci Nutr 2023; 63:12308-12323. [PMID: 35848108 DOI: 10.1080/10408398.2022.2101090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Saccharomyces cerevisiae plays a decisive role in the brewing of alcohol products, and the ideal growth and fermentation characteristics can give the pure flavor of alcohol products. However, S. cerevisiae can be affected profoundly by environmental factors during the brewing process, which have negative effects on the growth and fermentation characteristics of S. cerevisiae, and seriously hindered the development of brewing industry. Therefore, we summarized the environmental stress factors (ethanol, organic acids, temperature and osmotic pressure) that affect S. cerevisiae during the brewing process. Their impact mechanisms and the metabolic adaption of S. cerevisiae in response to these stress factors. Of note, S. cerevisiae can increase the ability to resist stress factors by changing the cell membrane components, expressing transcriptional regulatory factors, activating the anti-stress metabolic pathway and enhancing ROS scavenging ability. Meantime, the strategies and methods to improve the stress- tolerant ability of S. cerevisiae during the brewing process were also introduced. Compared with the addition of exogenous anti-stress substances, mutation breeding and protoplast fusion, it appears that adaptive evolution and genetic engineering are able to generate ideal environmental stress tolerance strains of S. cerevisiae and are more in line with the needs of the current brewing industry.
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Affiliation(s)
- Yanru Chen
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology & International Institute of Food Innovation, Nanchang University, Nanchang, PR China
| | - Yili Yang
- China Regional Research Centre, International Centre of Genetic Engineering & Biotechnology, Taizhou, PR China
| | - Wenqin Cai
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology & International Institute of Food Innovation, Nanchang University, Nanchang, PR China
| | - Jiali Zeng
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology & International Institute of Food Innovation, Nanchang University, Nanchang, PR China
| | - Na Liu
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology & International Institute of Food Innovation, Nanchang University, Nanchang, PR China
| | - Yin Wan
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology & International Institute of Food Innovation, Nanchang University, Nanchang, PR China
| | - Guiming Fu
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology & International Institute of Food Innovation, Nanchang University, Nanchang, PR China
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6
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Mao X, Yue SJ, Xu DQ, Fu RJ, Han JZ, Zhou HM, Tang YP. Research Progress on Flavor and Quality of Chinese Rice Wine in the Brewing Process. ACS OMEGA 2023; 8:32311-32330. [PMID: 37720734 PMCID: PMC10500577 DOI: 10.1021/acsomega.3c04732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023]
Abstract
Chinese rice wine (CRW) is a traditional and unique alcoholic beverage in China, favored by many consumers for its rich aroma, unique taste, and complex ingredients. Its flavor is primarily composed of volatile and nonvolatile compounds. These flavor compounds are partly derived from grains and starters (Qu), while the other part is produced by microbial metabolism and chemical reactions during the brewing process. Additionally, ethyl carbamate (EC) in CRW, a hazardous chemical, necessitates controlling its concentration during brewing. In recent years, numerous new brewing techniques for CRW have emerged. Therefore, this paper aims to collect aroma descriptions and thresholds of flavor compounds in CRW, summarize the relationship between the brewing process of CRW and flavor formation, outline methods for reducing the concentration of EC in the brewing process of CRW, and summarize the four stages (pretreatment of grains, fermentation, sterilization, and aging process) of new techniques. Furthermore, we will compare the advantages and disadvantages of different approaches, with the expectation of providing a valuable reference for improving the quality of CRW.
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Affiliation(s)
- Xi Mao
- Key
Laboratory of Shaanxi Administration of Traditional Chinese Medicine
for TCM Compatibility, and State Key Laboratory of Research &
Development of Characteristic Qin Medicine Resources (Cultivation),
and Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New
Drugs Research, Shaanxi University of Chinese
Medicine, Xi’an 712046, Shaanxi Province, China
| | - Shi-Jun Yue
- Key
Laboratory of Shaanxi Administration of Traditional Chinese Medicine
for TCM Compatibility, and State Key Laboratory of Research &
Development of Characteristic Qin Medicine Resources (Cultivation),
and Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New
Drugs Research, Shaanxi University of Chinese
Medicine, Xi’an 712046, Shaanxi Province, China
| | - Ding-Qiao Xu
- Key
Laboratory of Shaanxi Administration of Traditional Chinese Medicine
for TCM Compatibility, and State Key Laboratory of Research &
Development of Characteristic Qin Medicine Resources (Cultivation),
and Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New
Drugs Research, Shaanxi University of Chinese
Medicine, Xi’an 712046, Shaanxi Province, China
| | - Rui-Jia Fu
- Key
Laboratory of Shaanxi Administration of Traditional Chinese Medicine
for TCM Compatibility, and State Key Laboratory of Research &
Development of Characteristic Qin Medicine Resources (Cultivation),
and Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New
Drugs Research, Shaanxi University of Chinese
Medicine, Xi’an 712046, Shaanxi Province, China
| | - Jian-Zhang Han
- Xi’an
DaKou Wine Company Ltd., Xi’an 710300, Shaanxi Province, China
| | - Hao-Ming Zhou
- Key
Laboratory of Shaanxi Administration of Traditional Chinese Medicine
for TCM Compatibility, and State Key Laboratory of Research &
Development of Characteristic Qin Medicine Resources (Cultivation),
and Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New
Drugs Research, Shaanxi University of Chinese
Medicine, Xi’an 712046, Shaanxi Province, China
| | - Yu-Ping Tang
- Key
Laboratory of Shaanxi Administration of Traditional Chinese Medicine
for TCM Compatibility, and State Key Laboratory of Research &
Development of Characteristic Qin Medicine Resources (Cultivation),
and Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New
Drugs Research, Shaanxi University of Chinese
Medicine, Xi’an 712046, Shaanxi Province, China
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7
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Sun D, Li W, Luo L. Deciphering the brewing process of Cantonese-style rice vinegar: Main flavors, key physicochemical factors, and important microorganisms. Food Res Int 2023; 171:113068. [PMID: 37330828 DOI: 10.1016/j.foodres.2023.113068] [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: 04/04/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/19/2023]
Abstract
Cantonese-style rice vinegar is one of the most important Chinese rice vinegars and is quite popular all over the southeast coast of China, especially in Guangdong. This study identified 31 volatile compounds, including 11 esters, 6 alcohols, 3 aldehydes, 3 acids, 2 ketones, 1 phenol, and 5 alkanes, using headspace solid-phase microextraction-gas chromatography-mass spectrometry. Six organic acids were detected by high performance liquid chromatography. The ethanol content was detected by gas chromatography. During acetic acid fermentation, physicochemical analysis showed that the initial concentrations of reducing sugar and ethanol were 0.0079 g/L and 23.81 g/L, respectively, and the final value of total acid was 46.5 g/L, and the pH value was stable at 3.89. High-throughput sequencing was used to identify the microorganisms, and Acetobacter, Komagataeibacter, and Ralstonia were the top three bacterial genera. Quantitative real-time polymerase chain reaction revealed patterns that were different from those of high-throughput sequencing. The co-occurrence network of microorganisms and the correlation analysis between microorganisms and flavor substances indicate that Acetobacter and Ameyamaea played crucial roles as the main functional AAB, and the failure of Cantonese-style rice vinegar fermentation can be attributed to the abnormal increase in Komagataeibacter. Microbial co-occurrence network analysis indicated that Oscillibacter, Parasutterella, and Alistipes were the top three microorganisms. Redundancy analysis disclosed that total acid and ethanol were the key environmental factors influencing the microbial community. Fifteen microorganisms closely related to the metabolites were identified using the bidirectional orthogonal partial least squares model. Correlation analysis showed that these microorganisms were strongly associated with flavor metabolites and environmental factors. The findings of this study deepen our understanding of the fermentation of traditional Cantonese-style rice vinegar.
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Affiliation(s)
- Dongdong Sun
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China; Guangdong Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Weixin Li
- Guangdong Heshan Donggu Flavoring Food Co. Ltd, Heshan 529700, PR China
| | - Lixin Luo
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China; Guangdong Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou 510006, PR China.
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8
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Qian M, Ruan F, Zhao W, Dong H, Bai W, Li X, Liu X, Li Y. Comparison Study of the Physicochemical Properties, Amino Acids, and Volatile Metabolites of Guangdong Hakka Huangjiu. Foods 2023; 12:2915. [PMID: 37569185 PMCID: PMC10417750 DOI: 10.3390/foods12152915] [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: 06/19/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
The physicochemical properties, amino acids, and volatile metabolites of 20 types of Guangdong Hakka Huangjiu were systematically compared in this study. Lower sugar contents were detected in LPSH, ZJHL-1, and GDSY-1, but the total sugar contents of the other types of Guangdong Hakka Huangjiu were more than 100 g/L (which belonged to the sweet type). Among them, a lower alcohol content was found in GDSY-1 (8.36 %vol). There was a significant difference in the organic acid and amino acid composition among the 20 Guangdong Hakka Huangjiu samples, especially the amino acid composition. However, bitter amino acids as the major amino acids accounted for more than 50% of the total amino acids. A substantial variation in volatile profiles was also observed among all types of Guangzhou Hakka Huangjiu. Interestingly, MZSK-1 had different volatile profiles from other Guangzhou Hakka Huangjiu samples. According to gas chromatography olfactometry (GC-O), most of the aroma-active ingredients identified in Guangdong Hakka Huangjiu were endowed with a pleasant aroma of "fruity".
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Affiliation(s)
- Min Qian
- College of Light Industry and Food Sciences, Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.Q.); (F.R.); (W.B.); (X.L.); (X.L.); (Y.L.)
- Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
- Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou 510225, China
| | - Fengxi Ruan
- College of Light Industry and Food Sciences, Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.Q.); (F.R.); (W.B.); (X.L.); (X.L.); (Y.L.)
| | - Wenhong Zhao
- College of Light Industry and Food Sciences, Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.Q.); (F.R.); (W.B.); (X.L.); (X.L.); (Y.L.)
| | - Hao Dong
- Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
- Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou 510225, China
| | - Weidong Bai
- College of Light Industry and Food Sciences, Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.Q.); (F.R.); (W.B.); (X.L.); (X.L.); (Y.L.)
- Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
- Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou 510225, China
| | - Xiangluan Li
- College of Light Industry and Food Sciences, Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.Q.); (F.R.); (W.B.); (X.L.); (X.L.); (Y.L.)
- Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
- Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou 510225, China
| | - Xiaoyan Liu
- College of Light Industry and Food Sciences, Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.Q.); (F.R.); (W.B.); (X.L.); (X.L.); (Y.L.)
- Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
- Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou 510225, China
| | - Yanxin Li
- College of Light Industry and Food Sciences, Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.Q.); (F.R.); (W.B.); (X.L.); (X.L.); (Y.L.)
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9
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Ye X, Yu Y, Liu J, Zhu Y, Yu Z, Liu P, Wang Y, Wang K. Inoculation strategies affect the physicochemical properties and flavor of Zhenjiang aromatic vinegar. Front Microbiol 2023; 14:1126238. [PMID: 36970705 PMCID: PMC10033837 DOI: 10.3389/fmicb.2023.1126238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/15/2023] [Indexed: 03/11/2023] Open
Abstract
Inoculation strategy is a significant determinant of the flavor quality of Zhenjiang aromatic vinegar. Herein, the comparative analyses of the effects of various inoculation strategies on the physicochemical properties, microbial community structure, and flavoring characteristics of Zhenjiang aromatic vinegar were performed. The results showed that the contents of total acid (6.91 g/100 g), organic acid (2099.63 ± 4.13 mg/100 g) and amino acid (3666.18 ± 14.40 mg/100 g) in the direct inoculation strategy were higher than those in the traditional inoculation strategy (6.21 ± 0.02 g/100 g, 1939.66 ± 4.16 mg/100 g and 3301.46 ± 13.41 mg/100 g). At the same time, it can effectively promote the production of acetoin. The diversity of strains under the traditional inoculation strategy was higher than that under the direct inoculation strategy, and the relative abundance of major microbial genera in the fermentation process was lower than that under the direct inoculation strategy. In addition, for two different inoculation strategies, pH was proved to be an important environmental factor affecting the microbial community structure during acetic acid fermentation. The correlation between main microbial species, organic acids, non-volatile acids, and volatile flavor compounds is more consistent. Therefore, this study may help to develop direct injection composite microbial inoculants to replace traditional starter cultures in future research.
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10
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Tian S, Li Y, Li Y, Du G. Effect of two starters (Jiu Yao) on Chinese rice wine microbial community and flavour. Int J Food Sci Technol 2023. [DOI: 10.1111/ijfs.16374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Affiliation(s)
- Shufang Tian
- College of Biological and Food Engineering Anhui Polytechnic University Wuhu 241000 China
- Science Center for Future Foods Jiangnan University Wuxi 214122 China
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding Anhui Polytechnic University Wuhu Anhui 241000 China
| | - Yanbin Li
- College of Biological and Food Engineering Anhui Polytechnic University Wuhu 241000 China
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding Anhui Polytechnic University Wuhu Anhui 241000 China
| | - Yudong Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education and School of Biotechnology Jiangnan University 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Guocheng Du
- Science Center for Future Foods Jiangnan University Wuxi 214122 China
- Key Laboratory of Industrial Biotechnology, Ministry of Education and School of Biotechnology Jiangnan University 1800 Lihu Road Wuxi Jiangsu 214122 China
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11
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De Guidi I, Legras JL, Galeote V, Sicard D. Yeast domestication in fermented food and beverages: past research and new avenues. Curr Opin Food Sci 2023. [DOI: 10.1016/j.cofs.2023.101032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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12
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Chantarot S, Nopharatana M, Jirasatid S. Influence of Saccharomyces cerevisiae strains on fermentation of Monascus vinegar from rice pasta by-product. INTERNATIONAL FOOD RESEARCH JOURNAL 2022. [DOI: 10.47836/ifrj.29.6.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present work, rice pasta by-product (RPBP) was used as a raw material for the production of Monascus vinegar. Alcoholic fermentation using RPBP and red yeast rice koji were carried out, and the fermentative characteristics based on the yeast strains (Saccharomyces cerevisiae TISTR 5169, TISTR 5196, and TISTR 5197) were investigated. The compositional changes and functional properties of Monascus vinegar were examined. S. cerevisiae TISTR 5169 produced a higher yield of alcohol in a shorter time as compared to other strains, in which 10% alcohol was observed after four days of fermentation. Descriptive sensory evaluation showed that Monascus wine fermented by S. cerevisiae TISTR 5169 (W5169) showed the highest result of intensity in cereal, fruit, and alcohol aroma. Therefore, W5169 was selected for subsequent acetous fermentation. During fermentation for 39 days, the titratable acidity (acetic acid) increased, associated with the decrease in alcohol contents and pH values. Acetification increased total phenolic content in accordance with an increase of antioxidant activity. Moreover, Monascus vinegar contained functional ingredients including Monascus pigments; yellow (0.17 OD unit/mL), orange (0.08 OD unit/mL), red (0.06 OD unit/mL), monacolin K (0.0141 ppm), and total phenolic content (71.70 µg GAE/mL). Monascus vinegar exhibited potential for antioxidant activity (58.8%) and xanthine oxidase inhibitory activity (73.7%), and in particular, was without the mycotoxin citrinin.
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13
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Chen GM, Li WL, Tong SG, Qiu YT, Han JZ, Lv XC, Ai LZ, Sun JY, Sun BG, Ni L. Effects of the microbial community on the formation of volatile compounds and biogenic amines during the traditional brewing of Hongqu rice wine. Curr Res Food Sci 2022; 5:1433-1444. [PMID: 36110382 PMCID: PMC9467907 DOI: 10.1016/j.crfs.2022.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 11/25/2022] Open
Abstract
As a typical representative of Chinese rice wine (Huangjiu), Hongqu rice wine is famous for its red color, mellow taste and strong fragrance. However, due to the open brewing environment and traditional fermentation technology, there are some safety risks in traditional brewed Hongqu rice wine, such as a certain amount of biogenic amines. In this study, the dynamic changes and the differences of microbial communities and volatile flavor components between two types of Hongqu rice wine with high and low biogenic amine contents (LBAW and HBAW) during the traditional brewing were systematically investigated. The results showed that the total biogenic amine contents in LBAW and HBAW were 20.91 and 69.06 mg/L, respectively. The contents of putrescine, cadaverine, spermine and spermidine in HBAW were significantly higher than those in LBAW, and it was noteworthy that spermine content in HBAW was 17.62 mg/L, which was not detected in LBAW. In addition, the volatile flavor characteristics of the two kinds of Hongqu rice wine were obviously different. The contents of acetophenone, n-butyl butanoate and benzothiazole were obviously higher in HBAW, while the contents of isoamyl acetate, ethyl lactate, ethyl caprate and phenylethyl alcohol were significantly higher in LBAW. High-throughput sequencing of 16S/ITS amplicon revealed that Weissella, Kosakonia, Pantoea, Monascus, Saccharomyces and Millerozyma were the predominant microbial genera during the traditional brewing of HBAW, while Weissella, Kosakonia, Monascus, Saccharomyces and Issatchenkia were the predominant microbial genera during the traditional brewing of LBAW. Correlation analysis revealed that biogenic amines were significantly negatively correlated with unclassified_o_Saccharomycetales, Cyberlindnera, Zygoascus, Aspergillus and Acinetobacter, but positively correlated with Lactobacillus, Pediococcus, Millerozyma and Apiotrichum. In addition, we also found that Lactobacillus, Pediococcus and Saccharomyces were significantly positively correlated with most of the volatile flavor components, while Candida, Trichosporon and Monascus were significantly negatively correlated with most of the volatile flavor components. In addition, bioinformatical analysis based on PICRUSt demonstrated that the key enzymes for biogenic amine biosynthesis were more abundant in the microbial community of HBAW than LBAW. These findings demonstrate that the formations of volatile flavor and biogenic amines in Hongqu rice wine are influenced by microbial community during the fermentation. This work facilitates scientific understanding of the formation mechanism of biogenic amines, and may be useful to develop effective strategies to improve the quality of Hongqu rice wine.
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Affiliation(s)
- Gui-Mei Chen
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian, 362200, PR China
| | - Wen-Long Li
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian, 362200, PR China
| | - Shan-Gong Tong
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian, 362200, PR China
| | - Yun-Tao Qiu
- Fujian Huizelong Alcohol Co., Ltd, Pingnan County, Ningde, Fujian, 352303, PR China
| | - Jin-Zhi Han
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian, 362200, PR China
| | - Xu-Cong Lv
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian, 362200, PR China
| | - Lian-Zhong Ai
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, PR China
| | - Jin-Yuan Sun
- Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048, PR China
| | - Bao-Guo Sun
- Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048, PR China
| | - Li Ni
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Institute of Food Science and Technology, College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, PR China
- Food Nutrition and Health Research Center, School of Advanced Manufacturing, Fuzhou University, Jinjiang, Fujian, 362200, PR China
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14
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Nguyen NTH, Wang WY, Huang WL, Huang CL, Chiang TY. Metagenomics analyses of microbial dynamics associated with putative flavor development in mash fermentation of sake. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Liu N, Qin L, Pan J, Miao S. Characteristics of traditional Chinese acidic rice soup (rice-acid) prepared with different fermentation methods. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2021.11.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Huang T, Lu ZM, Peng MY, Liu ZF, Chai LJ, Zhang XJ, Shi JS, Li Q, Xu ZH. Combined effects of fermentation starters and environmental factors on the microbial community assembly and flavor formation of Zhenjiang aromatic vinegar. Food Res Int 2022; 152:110900. [DOI: 10.1016/j.foodres.2021.110900] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 01/06/2023]
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17
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Tian S, Zeng W, Fang F, Zhou J, Du G. The microbiome of Chinese rice wine (Huangjiu). Curr Res Food Sci 2022; 5:325-335. [PMID: 35198991 PMCID: PMC8844729 DOI: 10.1016/j.crfs.2022.01.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/30/2021] [Accepted: 01/09/2022] [Indexed: 12/30/2022] Open
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18
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Constructing a Defined Starter for Multispecies Vinegar Fermentation via Evaluating the Vitality and Dominance of Functional Microbes in Autochthonous Starter. Appl Environ Microbiol 2021; 88:e0217521. [PMID: 34818103 DOI: 10.1128/aem.02175-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Mature vinegar culture has usually been used as a type of autochthonous starter for rapidly initiate initiating the next batch of acetic acid fermentation (AAF) and maintaining the batch-to-batch uniformity of AAF in the production of traditional cereal vinegar. However, the vitality and dominance of functional microbes in autochthonous starters remain unclear, which hinders further improvement of fermentation yield and production. Here, based on metagenomic (MG), metatranscriptomic (MT), and 16S rRNA gene sequencings, 11 bacterial operational taxonomic units (OTUs) with significant metabolic activity (MT/MG ratio >1) and dominance (relative abundance >1%) were targeted in the autochthonous vinegar starter, all of which were assigned to 4 species (Acetobacter pasteurianus, Lactobacillus acetotolerans, L. helveticus, Acetilactobacillus jinshanensis). Then, we evaluated the successions and interactions of these 11 bacterial OTUs at different AAF stages. Last, a defined starter was constructed with 4 core species isolated from the autochthonous starter (A. pasteurianus, L. acetotolerans, L. helveticus, Ac. jinshanensis). The defined starter culture could rapidly initiate the AAF in a sterile or unsterilized environment and similar dynamics of metabolites (ethanol, titratable acidity, acetic acid, lactic acid, and volatile compounds) and environmental indexes (temperature, pH) of fermentation were observed as compared with that of autochthonous starter (P > 0.05). This work provides a method to construct a defined microbiota from a complex system while preserving its metabolic function. IMPORTANCE Complex microorganisms are beneficial to the flavor formation in natural food fermentation, but they also pose challenges to the mass production of standardized products. It is attractive to construct a defined starter to rapidly initiate fermentation process and significantly improve fermentation yield. This study provides a comprehensive understanding of vital and dominant species in the autochthonous vinegar starter via multi-omics, and designs a defined microbial community for the efficient fermentation of cereal vinegar.
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19
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Lin X, Ren X, Huang Y, Liang Z, Li W, Su H, He Z. Regional characteristics and discrimination of the fermentation starter Hong Qu in traditional rice wine brewing. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaozi Lin
- Institute of Agricultural Engineering Technology Fujian Academy of Agricultural Sciences Fuzhou Fujian 350003 China
- Fujian Key Laboratory of Agricultural Products (Food) Processing Fuzhou Fujian 350013 China
| | - Xiangyun Ren
- Institute of Agricultural Engineering Technology Fujian Academy of Agricultural Sciences Fuzhou Fujian 350003 China
- Fujian Key Laboratory of Agricultural Products (Food) Processing Fuzhou Fujian 350013 China
| | - Yingying Huang
- Institute of Agricultural Engineering Technology Fujian Academy of Agricultural Sciences Fuzhou Fujian 350003 China
- Fujian Key Laboratory of Agricultural Products (Food) Processing Fuzhou Fujian 350013 China
| | - Zhangcheng Liang
- Institute of Agricultural Engineering Technology Fujian Academy of Agricultural Sciences Fuzhou Fujian 350003 China
- Fujian Key Laboratory of Agricultural Products (Food) Processing Fuzhou Fujian 350013 China
| | - Weixin Li
- Institute of Agricultural Engineering Technology Fujian Academy of Agricultural Sciences Fuzhou Fujian 350003 China
- Fujian Key Laboratory of Agricultural Products (Food) Processing Fuzhou Fujian 350013 China
| | - Hao Su
- Institute of Agricultural Engineering Technology Fujian Academy of Agricultural Sciences Fuzhou Fujian 350003 China
- Fujian Key Laboratory of Agricultural Products (Food) Processing Fuzhou Fujian 350013 China
| | - Zhigang He
- Institute of Agricultural Engineering Technology Fujian Academy of Agricultural Sciences Fuzhou Fujian 350003 China
- Fujian Key Laboratory of Agricultural Products (Food) Processing Fuzhou Fujian 350013 China
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20
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Zhu L, Xu S, Li Y, Shi G. Improvement of 2-phenylethanol production in Saccharomyces cerevisiae by evolutionary and rational metabolic engineering. PLoS One 2021; 16:e0258180. [PMID: 34665833 PMCID: PMC8525735 DOI: 10.1371/journal.pone.0258180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 09/22/2021] [Indexed: 11/18/2022] Open
Abstract
2-Phenylethanol (2-PE) is a valuable aromatic compound with favorable flavors and good properties, resulting in its widespread application in the cosmetic, food and medical industries. In this study, a mutant strain, AD032, was first obtained by adaptive evolution under 2-PE stress. Then, a fusion protein from the Ehrlich pathway, composed of tyrB from Escherichia coli, kdcA from Lactococcus lactis and ADH2 from Saccharomyces cerevisiae, was constructed and expressed. As a result, 3.14 g/L 2-PE was achieved using L-phenylalanine as a precursor. To further increase 2-PE production, L-glutamate oxidase from Streptomyces overexpression was applied for the first time in our research to improve the supply of α-ketoglutarate in the transamination of 2-PE synthesis. Furthermore, we found that the disruption of the pyruvate decarboxylase encoding gene PDC5 caused an increase in 2-PE production, which has not yet been reported. Finally, assembly of the efficient metabolic modules and process optimization resulted in the strain RM27, which reached 4.02 g/L 2-PE production from 6.7 g/L L-phenylalanine without in situ product recovery. The strain RM27 produced 2-PE (0.8 mol/mol) with L-phenylalanine as a precursor, which was considerably high, and displayed manufacturing potential regarding food safety and process simplification aspects. This study suggests that innovative strategies regarding metabolic modularization provide improved prospects for 2-PE production in food exploitation.
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Affiliation(s)
- Linghuan Zhu
- College of Food Science and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Laboratory for Cereal Fermentation Technology, the Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi, China
| | - Sha Xu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Laboratory for Cereal Fermentation Technology, the Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi, China
| | - Youran Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Laboratory for Cereal Fermentation Technology, the Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi, China
| | - Guiyang Shi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Laboratory for Cereal Fermentation Technology, the Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi, China
- * E-mail:
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21
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Chen C, Liu Z, Zhou W, Tian H, Huang J, Yuan H, Yu H. Comparison of the Fermentation Activities and Volatile Flavor Profiles of Chinese Rice Wine Fermented Using an Artificial Starter, a Traditional JIUYAO and a Commercial Starter. Front Microbiol 2021; 12:716281. [PMID: 34616382 PMCID: PMC8488391 DOI: 10.3389/fmicb.2021.716281] [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: 05/28/2021] [Accepted: 08/24/2021] [Indexed: 12/25/2022] Open
Abstract
In this study, an artificial starter culture was prepared using the core microbial species of JIUYAO to produce Chinese rice wine (CRW). The fermentation activity and flavor profiles of CRW samples fermented with traditional JIUYAO, a commercial starter culture, and our artificial starter culture were compared. The optimal protectant combination for lyophilization of the artificial starter was established as 15.09% skim milk, 4.45% polyethylene glycol, 1.96% sodium glutamate, and 11.81% maltodextrin. A comparative analysis revealed that the ethanol content of the three CRW samples was similar. The total acid content of the CRW sample fermented with the artificial starter (7.10 g/L) was close to that of the sample fermented with JIUYAO (7.35 g/L), but higher than that of the sample fermented with the commercial starter (5.40 g/L). An electronic nose analysis revealed that the olfactory fingerprints of the CRW samples fermented with JIUYAO and the artificial starter resembled each other. For both above mentioned samples, the flavor profiles determined by gas chromatography–mass spectrometry indicated some differences in the variety and content of the aroma compounds, but the key odorants (odor activity values ≥1), such as isoamyl acetate, ethyl acetate, phenyl alcohol, and isoamyl alcohol, were similar.
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Affiliation(s)
- Chen Chen
- Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai, China
| | - Zheng Liu
- Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai, China
| | - Wenya Zhou
- Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai, China
| | - Huaixiang Tian
- Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai, China
| | - Juan Huang
- Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai, China
| | - Haibin Yuan
- Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai, China
| | - Haiyan Yu
- Department of Food Science and Technology, Shanghai Institute of Technology, Shanghai, China
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22
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Lee H, Lee S, Kyung S, Ryu J, Kang S, Park M, Lee C. Metabolite Profiling and Anti-Aging Activity of Rice Koji Fermented with Aspergillus oryzae and Aspergillus cristatus: A Comparative Study. Metabolites 2021; 11:524. [PMID: 34436465 PMCID: PMC8398186 DOI: 10.3390/metabo11080524] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/30/2021] [Accepted: 08/04/2021] [Indexed: 12/23/2022] Open
Abstract
Rice koji, used as a starter for maximizing fermentation benefits, produces versatile end products depending on the inoculum microbes used. Here, we performed metabolite profiling to compare rice koji fermented with two important filamentous fungus, Aspergillus oryzae and A. cristatus, during 8 days. The multivariate analyses showed distinct patterns of primary and secondary metabolites in the two kojis. The rice koji fermented with A. oryzae (RAO) showed increased α-glucosidase activity and higher contents of sugar derivatives than the one fermented with A. cristatus (RAC). RAC showed enhanced β-glucosidase activity and increased contents of flavonoids and lysophospholipids, compared to RAO. Overall, at the final fermentation stage (8 days), the antioxidant activities and anti-aging effects were higher in RAC than in RAO, corresponding to the increased metabolites such as flavonoids and auroglaucin derivatives in RAC. This comparative metabolomic approach can be applied in production optimization and quality control analyses of koji products.
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Affiliation(s)
- Hyunji Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (H.L.); (S.L.)
| | - Sunmin Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (H.L.); (S.L.)
| | - Seoyeon Kyung
- COSMAX BTI R&I Center, Pangyo inno Valley E, 255 Pangyo-ro, Bundang-gu, Seongnam-si 13486, Korea; (S.K.); (J.R.); (S.K.); (M.P.)
| | - Jeoungjin Ryu
- COSMAX BTI R&I Center, Pangyo inno Valley E, 255 Pangyo-ro, Bundang-gu, Seongnam-si 13486, Korea; (S.K.); (J.R.); (S.K.); (M.P.)
| | - Seunghyun Kang
- COSMAX BTI R&I Center, Pangyo inno Valley E, 255 Pangyo-ro, Bundang-gu, Seongnam-si 13486, Korea; (S.K.); (J.R.); (S.K.); (M.P.)
| | - Myeongsam Park
- COSMAX BTI R&I Center, Pangyo inno Valley E, 255 Pangyo-ro, Bundang-gu, Seongnam-si 13486, Korea; (S.K.); (J.R.); (S.K.); (M.P.)
| | - Choonghwan Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (H.L.); (S.L.)
- Research Institute for Bioactive-Metabolome Network, Konkuk University, Seoul 05029, Korea
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23
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Lu S, Zheng F, Wen L, He Y, Wang D, Wu M, Wang B. Yeast engineering technologies and their applications to the food industry. FOOD BIOTECHNOL 2021. [DOI: 10.1080/08905436.2021.1942037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Siyan Lu
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Fei Zheng
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Liankui Wen
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Yang He
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Donghui Wang
- SBU of Agriculture, Sinochem Group Co., Ltd., Beijing, China
| | - Manyu Wu
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Bixiang Wang
- Department of Food Science and Engineering, Jilin Agricultural University, Changchun, China
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24
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Zhou K, Wu L, Chen G, Liu Z, Zhao X, Zhang C, Lv X, Zhang W, Rao P, Ni L. Development of a Novel Restrictive Medium for Monascus Enrichment From Hongqu Based on the Synergistic Stress of Lactic Acid and Ethanol. Front Microbiol 2021; 12:702951. [PMID: 34234769 PMCID: PMC8256164 DOI: 10.3389/fmicb.2021.702951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/25/2021] [Indexed: 12/05/2022] Open
Abstract
Hongqu is a famous fermented food produced by Monascus and has been used as food coloring, wine starters and food additives for thousands of years in China. Excellent Monascus strain is an important prerequisite for producing high-quality Hongqu. However, the isolation of Monascus pure culture from Hongqu samples is time-consuming and laborious because it is easily interfered by other microorganisms (especially filamentous fungi). Therefore, the development of restrictive medium for Monascus enrichment from Hongqu is of great significance for the preparation and screening of excellent Monascus strains. Results of this study showed that Monascus has good tolerance to lactic acid and ethanol. Under the conditions of tolerance limits [7.5% lactic acid (v/v) and 12.0% ethanol (v/v)], Monascus could not grow but it still retained the vitality of spore germination, and the spore activity gradually decreased with the increasing concentrations of lactic acid and ethanol. More interestingly, the addition of lactic acid and ethanol significantly changed the microbial community structure in rice milk inoculated with Hongqu. After response surface optimization, Monascus could be successfully enriched without the interference of other microorganisms when 3.98% (v/v) lactic acid and 6.24% (v/v) ethanol were added to rice milk simultaneously. The optimal enrichment duration of Monascus by the restrictive medium based on the synergistic stress of lactic acid and ethanol is 8∼24 h. The synergistic stress of lactic acid and ethanol had no obvious effects on the accumulation of major metabolites in the progeny of Monascus, and was suitable for the enrichment of Monascus from different types of Hongqu. Finally, the possible mechanisms on the tolerance of Monascus to the synergistic stress of lactic acid and ethanol were preliminarily studied. Under the synergistic stress of lactic acid and ethanol, the cell membrane of Monascus defends against lactic acid and ethanol into cells to some extent, and the superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) activities of Monascus were higher than those of other fungi, which significantly reduced the degree of lipid peroxidation of cell membrane, while secreting more amylase to make reducing sugars to provide the cells with enough energy to resist environmental stress. This work has great application value for the construction of Monascus strain library and the better development of its germplasm resources.
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Affiliation(s)
- Kangxi Zhou
- College of Chemical Engineering, Fuzhou University, Fuzhou, China.,Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Li Wu
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Guimei Chen
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Zhibin Liu
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Xinze Zhao
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Chen Zhang
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Xucong Lv
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Wen Zhang
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Pingfan Rao
- Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
| | - Li Ni
- College of Chemical Engineering, Fuzhou University, Fuzhou, China.,Fujian Center of Excellence for Food Biotechnology, Institute of Food Science and Technology, Fuzhou University, Fuzhou, China
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Yang Y, Xia Y, Song X, Mu Z, Qiu H, Tao L, Ai L. The Potential of Flos sophorae immaturus as a Pigment-Stabilizer to Improve the Monascus Pigments Preservation, Flavor Profiles, and Sensory Characteristic of Hong Qu Huangjiu. Front Microbiol 2021; 12:678903. [PMID: 34093500 PMCID: PMC8174305 DOI: 10.3389/fmicb.2021.678903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/12/2021] [Indexed: 11/24/2022] Open
Abstract
Hong Qu Huangjiu (HQW) is distinguished by its inclusion of Monascus pigments, meaning that photosensitivity strongly affects the sensory quality of the wine. In this study, the effects of Flos sophorae immaturus (FSI) on the stability of Monascus pigments, the flavor profiles, and the sensory characteristics of HQW were investigated. After sterilization, the addition of FSI increased the preservation rate of Monascus pigments in HQW by up to 93.20%, which could be accounted for by the synergy of rutin and quercetin in FSI. The total content of the volatile flavor compounds in HQW increased significantly as the added amounts of FSI were increased, especially 3-methyl-1-butanol, 2-methyl-1-propanol, and short-chain fatty acid ethyl esters (SCFAEE). Sensory evaluation and partial least-squares regression revealed that the concentration of FSI significantly affected the aroma characteristics of HQW but had little effect on the mouthfeel. The addition of 0.9 mg/mL FSI yielded a satisfactory HQW with high scores in terms of mouthfeel and aroma. The strong correlation between fruit-aroma, full-body, and SCFAEE suggests that FSI might alter the aroma of HQW by enhancing the synthesis of SCFAEE. Summarily, treatment with FSI represents a new strategy for improving the stability of photosensitive pigments and thus adjusting the aroma of HQW or similar beverages.
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Affiliation(s)
- Yijin Yang
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China.,School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Yongjun Xia
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Xin Song
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhiyong Mu
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Huazhen Qiu
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Leren Tao
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Lianzhong Ai
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
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26
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Li S, Zhang Y, Yin P, Zhang K, Liu Y, Gao Y, Li Y, Wang T, Lu S, Li B. Probiotic potential of γ-aminobutyric acid (GABA)-producing yeast and its influence on the quality of cheese. J Dairy Sci 2021; 104:6559-6576. [PMID: 33685696 DOI: 10.3168/jds.2020-19845] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/22/2021] [Indexed: 01/23/2023]
Abstract
Kazakh cheese is a traditional dairy product in Xinjiang, China. To study the function and potential probiotic characteristics of yeast in Kazakh cheese and its contribution to cheese fermentation, we screened the γ-aminobutyric acid (GABA)-producing yeasts Pichia kudriavzevii 1-21, Kluyveromyces marxianus B13-5, Saccharomyces cerevisiae DL6-20, and Kluyveromyces lactis DY1-10. We investigated the potential probiotic properties of these strains and their use in cheese fermentation (cheeses designated CSP, CSM, CSS, and CSI, respectively); a control with no added yeast was designated CS. The results showed that the 4 yeast strains all showed high self-polymerization (2- and 24-h autoaggregation capacity of >80 and 90%, respectively), hydrophobicity (40-92% variation, low hydrophobicity in xylene, but within the range of probiotics), and the ability to survive the gastrointestinal tract (survival rate >75% after simulation), indicating the probiotic ability of the strains in vitro. The GABA production capacity of the CSM cheese increased (to 95.6 mg/100 g), but its protein content did not change significantly, and amino acid degradation was obvious. The GABA production capacity of the CSS cheese decreased (to 450 mg/kg); its protein content declined, and its amino acid content increased. Except for water and protein, we found no obvious differences in most physical and chemical indicators. Kluyveromyces marxianus B13-5 helped to form the desired texture. Multivariate statistical analysis showed that fermentation of the cheese with the 4 yeasts improved the production of esters and alcohols. The CSS cheese had good aroma production performance, because S. cerevisiae DL6-20 produced high concentrations of isoamyl alcohol, hexanoic acid ethyl ester, benzyl alcohol, octanoic acid ethyl ester, 3-hydroxy-2-butanone, and hexanoic acid; the content of 2-methyl-propanoic acid was low. Compared with the CSP cheese, the CSI and CSM cheeses had a fruitier aroma and a milder odor, but the CSI and CSM cheeses had high concentrations of ethyl acetate, butanoic acid, ethyl ester, 3-methyl-1-butanol-acetate, ethyl hexanoate, ethyl octanoate, acetic acid 2-phenylethyl ester, and ethyl lactate; concentrations of 3-methyl-butanoic acid, propanoic acid, acetic acid, and butanoic acid were low. The CSP cheese had stronger acid-producing ability. The order of fragrance production performance was CSS > CSI, CSM > CSP > CS. Research into the fermentation mechanisms of GABA-producing yeast in cheese will provide a theoretical basis for the quality control and industrial production of Kazakh cheese.
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Affiliation(s)
- Shan Li
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Yan Zhang
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Pingping Yin
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Kaili Zhang
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Yue Liu
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Yunyun Gao
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Yandie Li
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Tong Wang
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Shiling Lu
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China
| | - Baokun Li
- School of Food Science and Technology and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of the Ministry of Education, Shihezi University, Shihezi, Xinjiang 832000, P. R. China.
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Microbial and Chemical Analysis of Non-Saccharomyces Yeasts from Chambourcin Hybrid Grapes for Potential Use in Winemaking. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7010015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Native microorganisms present on grapes can influence final wine quality. Chambourcin is the most abundant hybrid grape grown in Pennsylvania and is more resistant to cold temperatures and fungal diseases compared to Vitis vinifera. Here, non-Saccharomyces yeasts were isolated from spontaneously fermenting Chambourcin must from three regional vineyards. Using cultured-based methods and ITS sequencing, Hanseniaspora and Pichia spp. were the most dominant genus out of 29 fungal species identified. Five strains of Hanseniaspora uvarum, H. opuntiae, Pichia kluyveri, P. kudriavzevii, and Aureobasidium pullulans were characterized for the ability to tolerate sulfite and ethanol. Hanseniaspora opuntiae PSWCC64 and P. kudriavzevii PSWCC102 can tolerate 8–10% ethanol and were able to utilize 60–80% sugars during fermentation. Laboratory scale fermentations of candidate strain into sterile Chambourcin juice allowed for analyzing compounds associated with wine flavor. Nine nonvolatile compounds were conserved in inoculated fermentations. In contrast, Hanseniaspora strains PSWCC64 and PSWCC70 were positively correlated with 2-heptanol and ionone associated to fruity and floral odor and P. kudriazevii PSWCC102 was positively correlated with a group of esters and acetals associated to fruity and herbaceous aroma. Microbial and chemical characterization of non-Saccharomyces yeasts presents an exciting approach to enhance flavor complexity and regionality of hybrid wines.
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28
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Ren X, He Z, Lin X, Lin X, Liang Z, Liu D, Huang Y, Fang Z. Screening and evaluation of Monascus purpureus FJMR24 for enhancing the raw material utilization rate in rice wine brewing. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:185-193. [PMID: 32623720 DOI: 10.1002/jsfa.10630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/24/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The rapid development of the rice wine industry has increased the demand for raw materials worldwide. A fungal strain with good adaptability to rice wine brewing conditions, which can also enhance the utilization rate of raw materials (URRM), thus increasing the production efficiency, was sought in the present research. RESULTS The strain FJMR24 was successfully isolated and screened from 35 fermentation starters and exhibited high amylase activity (2200.9 ± 18.5 U g-1 ) and high glucoamylase activity (2330.4 ± 31.9 U g-1 ). Based on a morphological examination and a sequence analysis of the internal transcribed spacer (ITS) gene and β-tubulin gene, FJMR24 was identified as Monascus purpureus, which is an edible and versatile fungus that plays a dominant role in the processing of Hong Qu. A moderate pH of 5-6 under incubation at 35 °C for 5-6 days was favorable for the growth and enzyme production of FJMR24. The strain could also tolerate the extreme conditions of 15-45 °C, 18% ethanol (v/v), and an acidity of pH 2. The excellent fermentation adaptability of FJMR24 might enable it to retain high enzyme activity during rice wine brewing. As a result of the action of FJMR24, the URRM of the base liquor increased by around 26% due to increased starch hydrolysis efficiency, which was mainly due to the high unit enzyme activity of FJMR24. CONCLUSION This study provides perspectives for the application of a M. purpureus strain with high starch hydrolysis activity for enhancing the URRM in traditional rice wine brewing. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xiangyun Ren
- Institute of Agricultural Engineering Technology, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Key Laboratory of Agricultural Products (Food) Processing, Fuzhou, China
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Zhigang He
- Institute of Agricultural Engineering Technology, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Key Laboratory of Agricultural Products (Food) Processing, Fuzhou, China
| | - Xiaozi Lin
- Institute of Agricultural Engineering Technology, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Key Laboratory of Agricultural Products (Food) Processing, Fuzhou, China
| | - Xiaojie Lin
- Institute of Agricultural Engineering Technology, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Key Laboratory of Agricultural Products (Food) Processing, Fuzhou, China
| | - Zhangcheng Liang
- Institute of Agricultural Engineering Technology, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Key Laboratory of Agricultural Products (Food) Processing, Fuzhou, China
| | - Di Liu
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Yingying Huang
- Institute of Agricultural Engineering Technology, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Key Laboratory of Agricultural Products (Food) Processing, Fuzhou, China
| | - Zhongxiang Fang
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
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29
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Identification of key odorants in traditional Shaoxing-jiu and evaluation of their impacts on sensory descriptors by using sensory-directed flavor analysis approaches. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-020-00769-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Chen L, Li D, Ren L, Ma X, Song S, Rong Y. Effect of
non‐Saccharomyces
yeasts fermentation on flavor and quality of rice wine. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Lihua Chen
- School of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai China
| | - Dongna Li
- School of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai China
| | - Lixia Ren
- School of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai China
| | - Xia Ma
- School of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai China
| | - Shiqing Song
- School of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai China
| | - Yuzhi Rong
- School of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai China
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31
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Yang Y, Hu W, Xia Y, Mu Z, Tao L, Song X, Zhang H, Ni B, Ai L. Flavor Formation in Chinese Rice Wine (Huangjiu): Impacts of the Flavor-Active Microorganisms, Raw Materials, and Fermentation Technology. Front Microbiol 2020; 11:580247. [PMID: 33281774 PMCID: PMC7691429 DOI: 10.3389/fmicb.2020.580247] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/22/2020] [Indexed: 11/13/2022] Open
Abstract
Huangjiu (Chinese rice wine) has been consumed for centuries in Asian countries and is known for its unique flavor and subtle taste. The flavor compounds of Huangjiu are derived from a wide range of sources, such as raw materials, microbial metabolic activities during fermentation, and chemical reactions that occur during aging. Of these sources, microorganisms have the greatest effect on the flavor quality of Huangjiu. To enrich the microbial diversity, Huangjiu is generally fermented under an open environment, as this increases the complexity of its microbial community and flavor compounds. Thus, understanding the formation of flavor compounds in Huangjiu will be beneficial for producing a superior flavored product. In this paper, a critical review of aspects that may affect the formation of Huangjiu flavor compounds is presented. The selection of appropriate raw materials and the improvement of fermentation technologies to promote the flavor quality of Huangjiu are discussed. In addition, the effects of microbial community composition, metabolic function of predominant microorganisms, and dynamics of microbial community on the flavor quality of Huangjiu are examined. This review thus provides a theoretical basis for manipulating the fermentation process by using selected microorganisms to improve the overall flavor quality of Huangjiu.
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Affiliation(s)
- Yijin Yang
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China.,School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Wuyao Hu
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Yongjun Xia
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhiyong Mu
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Leren Tao
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Xin Song
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Hui Zhang
- Shanghai Jinfeng Wine Co., Ltd., Shanghai, China
| | - Bin Ni
- Shanghai Jinfeng Wine Co., Ltd., Shanghai, China
| | - Lianzhong Ai
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
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32
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Yin L, Wang C, Zhu X, Ning C, Gao L, Zhang J, Wang Y, Huang R. A multi-step screening approach of suitable non-Saccharomyces yeast for the fermentation of hawthorn wine. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109432] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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33
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Zhu F, Li S, Guan X, Huang K, Li Q. Influence of vacuum soaking on the brewing properties of japonica rice and the quality of Chinese rice wine. J Biosci Bioeng 2020; 130:159-165. [PMID: 32418725 DOI: 10.1016/j.jbiosc.2020.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/02/2020] [Accepted: 03/12/2020] [Indexed: 11/17/2022]
Abstract
Soaking is an important process in Chinese rice wine brewing. In this study, the influence of vacuum soaking on Chinese rice wine production was investigated. Rice subjected to a 1-h vacuum soaking process or a traditional 2-days soaking process was steamed and fermented. Our results showed that vacuum soaking led to similar absorbed water but less leached solids compared with traditional soaking and showed limited influence on the physiochemical characteristics of steamed rice. Monitoring of the fermentation process suggested that the content of amino acid nitrogen in the vacuum-soaked group was significantly higher than that of the traditional-soaked group, while the other indexes were similar. The detection of flavor substances in the rice wine indicated that the contents of organic acids and free amino acids were higher in the vacuum-soaked group, and the main kinds of volatile flavor compounds from the two groups were similar. Additionally, sensory evaluation reflected that the rice wine brewed with rice subjected to either of the two different soaking treatments had similar sensory performances. Our research indicated that vacuum soaking could effectively shorten the soaking time of rice in Chinese rice wine production, thus shortening the brewing cycle without sacrificing the quality of the rice wine.
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Affiliation(s)
- Fengbo Zhu
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Sen Li
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xiao Guan
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Kai Huang
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Qiuyun Li
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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34
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Xu Y, Zhao H, Yan X, Zhao S. Preparation of a probiotic rice tablet: Sensory evaluation and antioxidant activity during gastrointestinal digestion. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108911] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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35
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Construction of recombinant fusant yeasts for the production of cider with low alcohol and enhanced aroma. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03436-9] [Citation(s) in RCA: 2] [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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36
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Metagenomic analysis reveals the impact of JIUYAO microbial diversity on fermentation and the volatile profile of Shaoxing-jiu. Food Microbiol 2020; 86:103326. [PMID: 31703871 DOI: 10.1016/j.fm.2019.103326] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/24/2019] [Accepted: 09/04/2019] [Indexed: 01/23/2023]
Abstract
This study focused on the microbial communities found in JIUYAO, the fermentation starter traditionally used in Shaoxing-jiu, and elucidated their relationship with the fermentation activities and volatile compounds involved in winemaking. The microbial communities found in all JIUYAO samples tested were dominated by Pediococcus and Weissella bacteria and Saccharomycopsis and Rhizopus fungi. Saccharifying power showed significant positive correlations with the presence of Pedioccoccus, Saccharomycopsis, and Rhizopus, whereas acid production capacity was strongly associated with Pedioccoccus, Weissella, and Rhizopus. Alcohol production capacity positively correlated with the presence of Pedioccoccus and Rhizopus. Fifteen important volatile compounds (odor-activity values ≥ 1) including esters, alcohols, acids, and aldehydes were identified in Huangjiu samples fermented with JIUYAO. Positive correlations were found between Saccharomycopsis and phenylethanol/ethyl butyrate, Rhizopus and ethyl propionate/ethyl laurate/ethyl butyrate, Pedioccoccus and ethyl laurate/acetic acid, and Weissella and decanoic acid/isopentanol. These results imply that these microorganisms significantly contribute to the fermentation activities and flavor of Shaoxing-jiu. Finally, the results showed that a combination of five core microbes with Saccharomyces cerevisiae could be used as a starter in winemaking. To conclude, this study provides a comprehensive overview of the core microbes found in JIUYAO and strategies for the selection of beneficial microorganisms to improve the quality and flavor of Shaoxing-jiu.
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37
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YANG F, WANG YP, ZHAO H. Quality enhancement of fermented vegetable juice by probiotic through fermented yam juice using Saccharomyces cerevisiae. FOOD SCIENCE AND TECHNOLOGY 2020. [DOI: 10.1590/fst.29918] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Fan YANG
- Tianjin University of Science and Technology, People’s Republic of China
| | - Yu-peng WANG
- Tianjin University of Science and Technology, People’s Republic of China
| | - Hua ZHAO
- Tianjin University of Science and Technology, People’s Republic of China
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38
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Xin Y, Yang M, Yin H, Yang J. Improvement of Ethanol Tolerance by Inactive Protoplast Fusion in Saccharomyces cerevisiae. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1979318. [PMID: 32420325 PMCID: PMC7201837 DOI: 10.1155/2020/1979318] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 08/01/2019] [Accepted: 11/11/2019] [Indexed: 12/19/2022]
Abstract
Saccharomyces cerevisiae is a typical fermentation yeast in beer production. Improving ethanol tolerance of S. cerevisiae will increase fermentation efficiency, thereby reducing capital costs. Here, we found that S. cerevisiae strain L exhibited a higher ethanol tolerance (14%, v/v) than the fermentative strain Q (10%, v/v). In order to enhance the strain Q ethanol tolerance but preserve its fermentation property, protoplast fusion was performed with haploids from strain Q and L. The fusant Q/L-f2 with 14% ethanol tolerance was obtained. Meanwhile, the fermentation properties (flocculability, SO2 production, α-N assimilation rate, GSH production, etc.) of Q/L-f2 were similar to those of strain Q. Therefore, our works established a series of high ethanol-tolerant strains in beer production. Moreover, this demonstration of inactivated protoplast fusion in industrial S. cerevisiae strain opens many doors for yeast-based biotechnological applications.
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Affiliation(s)
- Yi Xin
- State Key Laboratory of Biological Fermentation Engineering of Beer, Technology Center of Tsingtao Brewery Co., Ltd., Qingdao, Shandong 266061, China
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Laboratory of Energy Genetics, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266061, China
| | - Mei Yang
- State Key Laboratory of Biological Fermentation Engineering of Beer, Technology Center of Tsingtao Brewery Co., Ltd., Qingdao, Shandong 266061, China
| | - Hua Yin
- State Key Laboratory of Biological Fermentation Engineering of Beer, Technology Center of Tsingtao Brewery Co., Ltd., Qingdao, Shandong 266061, China
| | - Jianming Yang
- Energy-rich Compounds Production by Photosynthetic Carbon Fixation Research Center, College of Life Sciences, Qingdao Agricultural University, Qingdao, Shandong 266109, China
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Xu X, Zhou S, Julian McClements D, Huang L, Meng L, Xia X, Dong M. Multistarter fermentation of glutinous rice with Fu brick tea: Effects on microbial, chemical, and volatile compositions. Food Chem 2019; 309:125790. [PMID: 31784075 DOI: 10.1016/j.foodchem.2019.125790] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/21/2019] [Accepted: 10/23/2019] [Indexed: 01/06/2023]
Abstract
A higher fermentation efficiency was achieved, using multistarter fermentation of glutinous rice supplemented with Fu brick tea (FGR-FBT), than when using traditional fermentation. The effects of multistarter fermentation on the microbial, chemical, and volatile compositions were determined. When FBT was incorporated during glutinous rice fermentation, increased population of yeasts and fungi, as well as enhanced α-amylase, proteinase and β-glucosidase activities, were observed. Specific fungi were isolated and identified as Aspergillus spp., which are known to secrete extracellular enzymes that modify the chemical properties, including ethanol levels, pH, total acids, and total soluble solids. The aroma profile of fermented glutinous rice was studied in the absence and presence of FBT, using HS-SPME-GC-MS and the electronic-nose. This analysis indicated that 35 characteristic volatile compounds were only found in FGR-FBT. The results show that FBT can be added during the fermentation of food products to enhance microbial biotransformation and modify flavour metabolism.
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Affiliation(s)
- Xiao Xu
- College of Life Science, Shaoxing University, Shaoxing, Zhejiang 312000, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China; Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
| | - Siduo Zhou
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | | | - Lu Huang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China; Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China
| | - Ling Meng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Xiudong Xia
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China
| | - Mingsheng Dong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
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Membrane Fluidity of Saccharomyces cerevisiae from Huangjiu (Chinese Rice Wine) Is Variably Regulated by OLE1 To Offset the Disruptive Effect of Ethanol. Appl Environ Microbiol 2019; 85:AEM.01620-19. [PMID: 31540996 DOI: 10.1128/aem.01620-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/19/2019] [Indexed: 11/20/2022] Open
Abstract
An evolution and resequencing strategy was used to research the genetic basis of Saccharomyces cerevisiae BR20 (with 18 vol% ethanol tolerance) and the evolved strain F23 (with 25 vol% ethanol tolerance). Whole-genome sequencing and RNA sequencing (RNA-seq) indicated that the enhanced ethanol tolerance under 10 vol% ethanol could be attributed to amino acid metabolism, whereas 18 vol% ethanol tolerance was due to fatty acid metabolism. Ultrastructural analysis indicated that F23 exhibited better membrane integrity than did BR20 under ethanol stress. At low concentrations (<5 vol%), the partition of ethanol into the membrane increased the membrane fluidity, which had little effect on cell growth. However, the toxic effects of medium and high ethanol concentrations (5 to 20 vol%) tended to decrease the membrane fluidity. Under high ethanol stress (>10 vol%), the highly tolerant strain was able to maintain a relatively constant fluidity by increasing the content of unsaturated fatty acid (UFA), whereas less-tolerant strains show a continuous decrease in fluidity and UFA content. OLE1, which was identified as the only gene with a differential single-nucleotide polymorphism (SNP) mutation site related to fatty acid metabolism, was significantly changed in response to ethanol. The role of OLE1 in membrane fluidity was positively validated in its overexpressed transformants. Therefore, OLE1 lowered the rate of decline in membrane fluidity and thus enabled the yeast to better fight the deleterious effects of ethanol.IMPORTANCE Yeasts with superior ethanol tolerance are desirable for winemakers and wine industries. In our previous work, strain F23 was evolved with superior ethanol tolerance and fermentation activity to improve the flavor profiles of Chinese rice wine. Therefore, exploring the genomic variations and ethanol tolerance mechanism of strain F23 could contribute to an understanding of its effect on the flavor characteristics in the resulting Chinese rice wine. The cellular membrane plays a vital role in the ethanol tolerance of yeasts; however, how the membrane is regulated to fight the toxic effect of ethanol remains to be elucidated. This study suggests that the membrane fluidity is variably regulated by OLE1 to offset the disruptive effect of ethanol. Current work will help develop more ethanol-tolerant yeast strains for wine industries and contribute to a deep understanding of its high flavor-producing ability.
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Jiang J, Liu Y, Li H, Yang Q, Wu Q, Chen S, Tang J, Xu Y. Modeling and Regulation of Higher Alcohol Production through the Combined Effects of the C/N Ratio and Microbial Interaction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10694-10701. [PMID: 31476866 DOI: 10.1021/acs.jafc.9b04545] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Too large of a higher alcohol content has negative effects on the liquor taste and health. Revealing the key microbes and their key driving forces is essential to regulate the higher alcohol content in spontaneous liquor fermentation. Herein, we used high-throughput sequencing associated with a multivariate statistical algorithm to reveal the contributing microbes for higher alcohol production in Chinese light-aroma-type liquor and identified that Saccharomyces and Pichia were the main contributors. In addition, the C/N ratio and microbial interaction were found to significantly affect the production of higher alcohols. Herein, we used response surface methodology to establish a predictive model for higher alcohol production with the regulating factors, and the content of total higher alcohols decreased significantly from 328.80 ± 24.83 to 114.88 ± 5.02 mg/L with the optimized levels of the regulators. This work would facilitate the control of flavor production via regulating microbial communities in food fermentation.
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Affiliation(s)
- Jian Jiang
- Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science and Technology, School of Biotechnology , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Yuancai Liu
- Hubei Provincial Key Laboratory for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute , Jing Brand Company, Limited , Daye , Hubei 435100 , China
| | - Huanhuan Li
- Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science and Technology, School of Biotechnology , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Qiang Yang
- Hubei Provincial Key Laboratory for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute , Jing Brand Company, Limited , Daye , Hubei 435100 , China
| | - Qun Wu
- Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science and Technology, School of Biotechnology , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Shenxi Chen
- Hubei Provincial Key Laboratory for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute , Jing Brand Company, Limited , Daye , Hubei 435100 , China
| | - Jie Tang
- Hubei Provincial Key Laboratory for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute , Jing Brand Company, Limited , Daye , Hubei 435100 , China
| | - Yan Xu
- Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science and Technology, School of Biotechnology , Jiangnan University , Wuxi , Jiangsu 214122 , China
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Wang J, Zhu L, Zhang W, Wei Z. Application of the voltammetric electronic tongue based on nanocomposite modified electrodes for identifying rice wines of different geographical origins. Anal Chim Acta 2018; 1050:60-70. [PMID: 30661592 DOI: 10.1016/j.aca.2018.11.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/06/2018] [Accepted: 11/07/2018] [Indexed: 01/19/2023]
Abstract
In the study, the voltammetric electronic tongue based on three nanocomposites modified electrodes was applied for the identification of rice wines of different geographical origins. The nanocomposites were prepared by gold and copper nanoparticles in the presence of conducting polymers (polymer sulfanilic acid, polymer glutamic acid) and carboxylic multi - walled carbon nanotubes. The modified electrodes showed high sensitivity to guanosine - 5' - monophosphate disodium salt, tyrosine and gallic acid which have good correlation with the geographical origins of rice wines. Scanning electron microscopy was performed to display the surface morphologies of the nanocomposites, and cyclic voltammetry was applied to study the electrochemical behaviors of the taste substances on the electrode surfaces. Four types of electrochemical parameters (pH, scan rates, accumulation potentials and time) were optimized for getting a low limit of the detection of each taste substance. The geographical information of rice wines was obtained by the modified electrodes based on two types of multi - frequency large amplitude pulse voltammetry, and "area method" was applied for extracting the feature data from the original information obtained. Based on the area feature data, principal component analysis, locality preserving projection (LPP), and linear discriminant analysis were applied for the classification of the rice wines of different geographical origins, and LPP presented the best results; extreme learning machine (ELM) and alibrary for support vector machines were applied for predicting the geographical origins of rice wines, and ELM performed better.
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Affiliation(s)
- Jun Wang
- Department of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China
| | - Luyi Zhu
- Department of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China
| | - Weilin Zhang
- Department of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China
| | - Zhenbo Wei
- Department of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China.
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Abstract
Fermented juice was prepared with byproducts (pulp and rind) of seed watermelon (Citrullus lanatus sp. vulgaris var. megalaspermus) for the first time, and its radical scavenging capacity and aroma were compared with those of the corresponding unfermented juice. The 2,2-diphenyl-1-picryhydrazyl and hydroxyl radical scavenging capacities of the fermented juice were significantly stronger than those of the unfermented juice. The oxygen radical scavenging capacity of the fermented juice was 60 µM trolox equivalent/mL, which was 7.14% higher than that of the unfermented juice. Gas chromatography-mass spectrometer analysis showed a total of 26 and 29 volatiles in unfermented juice and fermented juice, respectively. The content of typical watermelon aroma, including 1-nonanol, 3,6-nonadien-1-ol, nonanal, trans-2-nonenal, and trans,cis-2,6-nonadienal, was reduced from 92.08 mg/L in the unfermented juice to 26.41 mg/L in the fermented juice. Furthermore, isoamylol, ethyl octanoate, ethyl acetate, and ethyl laurate contributed a typical grape-wine bouquet to the fermented juice. Sensory evaluation further confirmed the attractive appearance and watermelon aroma of the fermented juice. Therefore, the fermented seed-watermelon juice showed a strong radical scavenging capacity and presented the typical watermelon aroma with a grape-wine bouquet.
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