1
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Jia Y, Wang C, Zhang Y, Deng W, Ma Y, Ma J, Han G. The Flavor Characteristics and Metabolites of Three Commercial Dried Jujube Cultivars. Foods 2024; 13:1193. [PMID: 38672867 PMCID: PMC11048840 DOI: 10.3390/foods13081193] [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: 02/29/2024] [Revised: 03/24/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
To understand the flavor and metabolite differences between the three commercial dried jujube cultivars Huizao (HZ), Hamazao 1 (HMZ), and Qiyuexian (QYX), their soluble sugars, organic acids, volatiles, and metabolites were systematically investigated. The results show that sucrose and malic acid were the main soluble sugar and organic acids contained in these dried jujubes, respectively. Sucrose (573.89 mg/g DW) had the highest presence in HZ, and the total sugar content (898.33 mg/g DW) was the highest in QYX. Both of these had a low total acid content, resulting in relatively high sugar-acid ratios (105.49 and 127.86, respectively) compared to that of HMZ (51.50). Additionally, 66 volatile components were detected in the 3 jujubes. These mainly included acids, aldehydes, esters, and ketones (90.5-96.49%). Among them, (E)-2-nonenal, (E)-2-decenal, heptanal, decanal, nonanal, and octanal were identified as the key aromatic substances of the dried jujubes, and their contents were the highest in HMZ. Moreover, 454 metabolites were identified, including alkaloids, amino acids, flavonoids, lipids, nucleotides, and terpenoids. The highest contents of flavonoids (5.6%) and lipids (24.9%) were detected in HMZ, the highest contents of nucleotides (10.2%) and alkaloids (27%) were found in QYX, and the contents of saccharides (5.7%) and amino acids (23.6%) were high in HZ. Overall, HZ, HMZ, and QYX significantly differ in their flavor and nutrition. HZ tastes better, HMZ is more fragrant, and QYX and HMZ possess higher nutritional values.
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Affiliation(s)
| | | | | | | | | | | | - Gang Han
- College of Forestry, Northwest A&F University, Xianyang 712100, China; (Y.J.); (C.W.); (Y.Z.); (W.D.); (Y.M.); (J.M.)
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2
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Wang R, Zeng Y, Liang J, Zhang H, Yi J, Liu Z. Effect of Rhodotorula mucilaginosa inoculation on the aroma development of a fermented vegetables simulated system. Food Res Int 2024; 179:113941. [PMID: 38342554 DOI: 10.1016/j.foodres.2024.113941] [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: 10/22/2023] [Revised: 12/26/2023] [Accepted: 01/02/2024] [Indexed: 02/13/2024]
Abstract
Fermented vegetables are known for their unique flavors and aromas, which are influenced by the complex microbial processes that occur during fermentation. Rhodotorula mucilaginosa is a red yeast strain that is frequently isolated from fermented vegetables. However, the specific mechanisms underlying their effects on aroma production remain unclear. In this study, a simulated system of vegetables fermented using vegetable juices was used to investigate the effects of R. mucilaginosa inoculation on aroma development. The results demonstrated that this red yeast strain could utilize the nutrients present in the vegetable juices to support its growth and reproduction. Moreover, the inoculation of fermented vegetable juices with this yeast strain led to an increase in the levels of umami amino acids and sweet amino acids. Furthermore, this yeast strain was found able to significantly reduce the content of sulfur-containing compounds, which may decrease the unpleasant odor of fermented vegetables. Additionally, the yeast strain was capable of producing high concentrations of aromatic compounds such as phenylethyl alcohol, methyl 2-methylbutyrate, methyl butyrate, and nonanoic acid in a minimum medium. However, only phenylethyl alcohol has been identified as a core aromatic compound in fermented vegetable juice. The three fermented vegetable juices exhibited significantly different flavor profiles according to comparative analysis. Therefore, the core flavor compounds found in fermented vegetables are primarily derived from the release and modification of endogenous flavors naturally present in the vegetables, facilitated by the yeast during fermentation.
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Affiliation(s)
- Rui Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China; Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
| | - Yi Zeng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China; Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
| | - Jiaqian Liang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China; Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
| | - Huixin Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China; Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China; Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
| | - Zhijiia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China; Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China.
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3
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Xie J, Gänzle M. Microbiology of fermented soy foods in Asia: Can we learn lessons for production of plant cheese analogues? Int J Food Microbiol 2023; 407:110399. [PMID: 37716309 DOI: 10.1016/j.ijfoodmicro.2023.110399] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/17/2023] [Accepted: 09/10/2023] [Indexed: 09/18/2023]
Abstract
The food industry is facing the challenge of creating innovative, nutritious, and flavored plant-based products, due to consumer's increasing demand for the health and environmental sustainability. Fermentation as a unique and effective tool plays an important role in the innovation of food products. Traditional fermented soy foods are popular in many Asian and African countries as nutritious, digestible and flavorful daily staples or condiments. They are produced by specific microorganisms with the unique fermentation process in which microorganisms convert the ingredients of whole soybean or soybean curd to flavorful and functional molecules. This review provides an overview on traditional fermented food produced from soy, including douchi, natto, tempeh, and sufu as well as stinky tofu, including the background of these products, the manufacturing process, and the microbial diversity involved in fermentation procedures as well as flavor volatiles that were identified in the final products. The contribution of microbes to the quality of these five fermented soy foods is discussed, with the comparison to the role of cheese ripening microorganisms in cheese flavor formation. This communication aims to summarize the microbiology of fermented soy foods in Asia, evoking innovative ideas for the development of new plant-based fermented foods especially plant-based cheese analogues.
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Affiliation(s)
- Jin Xie
- University of Alberta, Dept. of Agricultural, Food and Nutritional Science, Edmonton, Canada
| | - Michael Gänzle
- University of Alberta, Dept. of Agricultural, Food and Nutritional Science, Edmonton, Canada; Hubei University of Technology, College of Bioengineering and Food Science, Wuhan, Hubei, People's Republic of China.
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4
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Hu X, Liu S, Li E. Microbial community succession and its correlation with the dynamics of flavor compound profiles in naturally fermented stinky sufu. Food Chem 2023; 427:136742. [PMID: 37393638 DOI: 10.1016/j.foodchem.2023.136742] [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: 02/08/2023] [Revised: 06/04/2023] [Accepted: 06/25/2023] [Indexed: 07/04/2023]
Abstract
Wuhan stinky sufu is a traditional fermented soybean product with a short ripening period and unique flavor. The aim of this study was to explore the characteristic flavor compounds and core functional microbiota of naturally fermented Wuhan stinky sufu. The results indicated that 11 volatile compounds including guaiacol, 2-pentylfuran, dimethyl trisulfide, dimethyl disulfide, acetoin, 1-octen-3-ol, (2E)-2-nonenal, indole, propyl 2-methylbutyrate, ethyl 4-methylvalerate, nonanal were characteristic aroma compounds, and 6 free amino acids (Ser, Lys, Arg, Glu, Met and Pro) were identified as taste-contributing compounds. 4 fungal genera (Kodamaea, unclassified_Dipodascaceae, Geotrichum, Trichosporon), and 9 bacterial genera (Lysinibacillus, Enterococcus, Acidipropionibacterium, Bifidobacterium, Corynebacterium, Lactococcus, Pseudomonas, Enterobacter, and Acinetobacter) were identified as the core functional microbiota with positive effects on the production of flavor compounds. These findings would enhance the understanding of core flavor-producing microorganisms in naturally fermented soybean products and potentially provide guidance for enhancing the quality of sufu.
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Affiliation(s)
- Xuefen Hu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Shaoquan Liu
- Department of Food Science and Technology, National University of Singapore, Science Drive 2, Singapore 117543, Singapore
| | - Erhu Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
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5
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Li K, Gao N, Tang J, Ma H, Jiang J, Duan Y, Li Z. A Study on the Formation of Flavor Substances by Bacterial Diversity in the Fermentation Process of Canned Bamboo Shoots in Clear Water. Foods 2023; 12:3478. [PMID: 37761186 PMCID: PMC10529733 DOI: 10.3390/foods12183478] [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: 08/06/2023] [Revised: 09/09/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Canned bamboo shoots in clear water could produce a unique flavor through bacterial diversity via the fermentation process. Weissella, Streptococcus, Leuconostoc, Acinetobacter, Lactococcus and Lactobacillus were the main microorganisms. Tyrosine was the most abundant free amino acid (FAA), which had a negative correlation with Lactococcus. Ten kinds of flavor substances, such as 3-methyl-1-butanol, acetic acid, 2-phenylethyl ester, benzene acetaldehyde, benzoic acid and ethyl ester, were important influential factors in the flavor of fermented bamboo shoots. Through the verification test of tyrosine and phenylalanine decarboxylase, it was found that Lactococcus lactis TJJ2 could decompose tyrosine and phenylalanine to produce benzaldehyde and benzene acetaldehyde, which provided the fermented bamboo shoots with a grassy aroma.
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Affiliation(s)
- Ke Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (K.L.); (N.G.); (J.T.); (H.M.); (J.J.); (Y.D.)
- Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, China
| | - Ning Gao
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (K.L.); (N.G.); (J.T.); (H.M.); (J.J.); (Y.D.)
| | - Jiaojiao Tang
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (K.L.); (N.G.); (J.T.); (H.M.); (J.J.); (Y.D.)
| | - Huiqin Ma
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (K.L.); (N.G.); (J.T.); (H.M.); (J.J.); (Y.D.)
| | - Jiayan Jiang
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (K.L.); (N.G.); (J.T.); (H.M.); (J.J.); (Y.D.)
| | - Yufan Duan
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (K.L.); (N.G.); (J.T.); (H.M.); (J.J.); (Y.D.)
| | - Zongjun Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (K.L.); (N.G.); (J.T.); (H.M.); (J.J.); (Y.D.)
- Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, China
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6
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Elhalis H, See XY, Osen R, Chin XH, Chow Y. Significance of Fermentation in Plant-Based Meat Analogs: A Critical Review of Nutrition, and Safety-Related Aspects. Foods 2023; 12:3222. [PMID: 37685155 PMCID: PMC10486689 DOI: 10.3390/foods12173222] [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: 07/24/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Plant-based meat analogs have been shown to cause less harm for both human health and the environment compared to real meat, especially processed meat. However, the intense pressure to enhance the sensory qualities of plant-based meat alternatives has caused their nutritional and safety aspects to be overlooked. This paper reviews our current understanding of the nutrition and safety behind plant-based meat alternatives, proposing fermentation as a potential way of overcoming limitations in these aspects. Plant protein blends, fortification, and preservatives have been the main methods for enhancing the nutritional content and stability of plant-based meat alternatives, but concerns that include safety, nutrient deficiencies, low digestibility, high allergenicity, and high costs have been raised in their use. Fermentation with microorganisms such as Bacillus subtilis, Lactiplantibacillus plantarum, Neurospora intermedia, and Rhizopus oryzae improves digestibility and reduces allergenicity and antinutritive factors more effectively. At the same time, microbial metabolites can boost the final product's safety, nutrition, and sensory quality, although some concerns regarding their toxicity remain. Designing a single starter culture or microbial consortium for plant-based meat alternatives can be a novel solution for advancing the health benefits of the final product while still fulfilling the demands of an expanding and sustainable economy.
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Affiliation(s)
| | | | | | | | - Yvonne Chow
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos, Singapore 138669, Singapore; (H.E.); (X.Y.S.); (R.O.); (X.H.C.)
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7
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An F, Wu J, Feng Y, Pan G, Ma Y, Jiang J, Yang X, Xue R, Wu R, Zhao M. A systematic review on the flavor of soy-based fermented foods: Core fermentation microbiome, multisensory flavor substances, key enzymes, and metabolic pathways. Compr Rev Food Sci Food Saf 2023; 22:2773-2801. [PMID: 37082778 DOI: 10.1111/1541-4337.13162] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 04/01/2023] [Accepted: 04/06/2023] [Indexed: 04/22/2023]
Abstract
The characteristic flavor of fermented foods has an important impact on the purchasing decisions of consumers, and its production mechanisms are a concern for scientists worldwide. The perception of food flavor is a complex process involving olfaction, taste, vision, and oral touch, with various senses contributing to specific properties of the flavor. Soy-based fermented products are popular because of their unique flavors, especially in Asian countries, where they occupy an important place in the dietary structure. Microorganisms, known as the souls of fermented foods, can influence the sensory properties of soy-based fermented foods through various metabolic pathways, and are closely related to the formation of multisensory properties. Therefore, this review systematically summarizes the core microbiome and its interactions that play an active role in representative soy-based fermented foods, such as fermented soymilk, soy sauce, soybean paste, sufu, and douchi. The mechanism of action of the core microbial community on multisensory flavor quality is revealed here. Revealing the fermentation core microbiome and related enzymes provides important guidance for the development of flavor-enhancement strategies and related genetically engineered bacteria.
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Affiliation(s)
- Feiyu An
- College of Food Science, Shenyang Agricultural University, Shenyang, China
- Liaoning Provincial Engineering Research Center of Food Fermentation Technology, Shenyang, China
- Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, China
| | - Junrui Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, China
- Liaoning Provincial Engineering Research Center of Food Fermentation Technology, Shenyang, China
- Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, China
| | - Yunzi Feng
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Guoyang Pan
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Yuanyuan Ma
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Jinhui Jiang
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Xuemeng Yang
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Ruixia Xue
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, China
- Liaoning Provincial Engineering Research Center of Food Fermentation Technology, Shenyang, China
- Shenyang Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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8
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Chen Z, Liu L, Du H, Lu K, Chen C, Xue Q, Hu Y. Microbial community succession and their relationship with the flavor formation during the natural fermentation of Mouding sufu. Food Chem X 2023; 18:100686. [PMID: 37168719 PMCID: PMC10164778 DOI: 10.1016/j.fochx.2023.100686] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 04/18/2023] [Accepted: 04/18/2023] [Indexed: 05/13/2023] Open
Abstract
Mouding sufu, a traditional fermented soybean product in China, has been recognized by the public in the southwestern regions of China. To reveal the microbial community succession and their relationship with the flavor formation during the natural fermentation of Mouding sufu, microbial community, non-volatile flavor compounds and volatile flavor compounds were analyzed by high-throughput sequencing, high-performance liquid chromatography, gas chromatography ion migration spectroscopy, respectively. The results showed that Lactobacillus and Klebsiella were the most abundant bacterial genus, whereas the main fungal genera were unclassified-f-Dipodascaeae and Issatchenkia. In addition, Glutamic acid, Aspartic acid, Alanine, Valine, Lysine, Histidine, lactic acid, succinic acid, and acetic acid were the main non-volatile flavor substances. Furthermore, the taste activity values of glutamic acid, aspartic acid and lactic acid reached 132, 68.9, 18.18 at H60, respectively, meaning that umami and sour were the key taste compounds. Simultaneously, ethyl 3-methylbutanoate-M, ethyl propanoate, methyl 2-methylbutanoate, ethyl 2-methylbutanoate, ethyl 3-methylbutanoate-D, ethyl isobutyrate, linalool-M, linalool-D, cis-4-heptenal, 2-methylpropanal were the characteristic volatile flavor of Mouding sufu. Finally, correlation analysis showed that g__Erwinia and g__Acremonium correlated with most of the key aroma compounds. 20 bacteria and 21 fungi were identified as core functional microbe for Mouding sufu production.
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Affiliation(s)
- Zhongai Chen
- College of Food Science and Technology, Yunnan Agricultural University, NO. 452 Fengyuan Road, Panlong District, Kunming, Yunnan 650000, China
- Institute of Food Processing, Guizhou Academy of Agricultural Sciences, NO. 1 Jinnong Road, Huaxi District, Guiyang 550006, China
| | - Lijing Liu
- College of Food Science and Technology, Yunnan Agricultural University, NO. 452 Fengyuan Road, Panlong District, Kunming, Yunnan 650000, China
| | - Huan Du
- College of Food Science and Technology, Yunnan Agricultural University, NO. 452 Fengyuan Road, Panlong District, Kunming, Yunnan 650000, China
| | - Kaixiang Lu
- College of Food Science and Technology, Yunnan Agricultural University, NO. 452 Fengyuan Road, Panlong District, Kunming, Yunnan 650000, China
| | - Cong Chen
- College of Food Science and Technology, Yunnan Agricultural University, NO. 452 Fengyuan Road, Panlong District, Kunming, Yunnan 650000, China
| | - Qiaoli Xue
- Editorial Department of Journal of Yunnan Agricultural University, Yunnan Agricultural University, Kunming 650000, China
- Corresponding authors.
| | - Yongjin Hu
- College of Food Science and Technology, Yunnan Agricultural University, NO. 452 Fengyuan Road, Panlong District, Kunming, Yunnan 650000, China
- Corresponding authors.
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Qiu Y, Li C, Xia M, Dong H, Yuan H, Ye S, Wang Q. Exploring a new technology for producing better-flavored HongJun Tofu, a traditional Neurospora-type okara food. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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10
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Elhalis H, Chin XH, Chow Y. Soybean fermentation: Microbial ecology and starter culture technology. Crit Rev Food Sci Nutr 2023:1-23. [PMID: 36916137 DOI: 10.1080/10408398.2023.2188951] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Fermented soybean products, including Soya sauce, Tempeh, Miso, and Natto have been consumed for decades, mainly in Asian countries. Beans are processed using either solid-state fermentation, submerged fermentation, or a sequential of both methods. Traditional ways are still used to conduct the fermentation processes, which, depending on the fermented products, might take a few days or even years to complete. Diverse microorganisms were detected during fermentation in various processes with Bacillus species or filamentous fungi being the two main dominant functional groups. Microbial activities were essential to increase the bean's digestibility, nutritional value, and sensory quality, as well as lower its antinutritive factors. The scientific understanding of fermentation microbial communities, their enzymes, and their metabolic activities, however, still requires further development. The use of a starter culture is crucial, to control the fermentation process and ensure product consistency. A broad understanding of the spontaneous fermentation ecology, biochemistry, and the current starter culture technology is essential to facilitate further improvement and meet the needs of the current extending and sustainable economy. This review covers what is currently known about these aspects and reveals the limited available information, along with the possible directions for future starter culture design in soybean fermentation.
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Affiliation(s)
- Hosam Elhalis
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Nanos, Singapore, Singapore.,Food Science and Technology, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales, Australia
| | - Xin Hui Chin
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Nanos, Singapore, Singapore
| | - Yvonne Chow
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Nanos, Singapore, Singapore
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11
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Shi Q, Tang H, Mei Y, Chen J, Wang X, Liu B, Cai Y, Zhao N, Yang M, Li H. Effects of endogenous capsaicin stress and fermentation time on the microbial succession and flavor compounds of chili paste (a Chinese fermented chili pepper). Food Res Int 2023; 168:112763. [PMID: 37120214 DOI: 10.1016/j.foodres.2023.112763] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023]
Abstract
Chili paste, is a popular traditional product derived from chili pepper, and its fermentation system is affected by the variable concentration of capsaicin, which originates from the peppers. In the present study, the effects of capsaicin and fermentation time on the microbial community and flavor compounds of chili paste were investigated. After capsaicin supplementation, the total acid was significantly decreased (p < 0.05) along with lower total bacteria, especially lactic acid bacteria. Lactiplantibacillus, Lactobacillus, Weissella, Issatchenkia, Trichoderma, and Pichia were the shared and predominant genera; whereas, the Bacteroides and Kazachstania abundance was significantly increased due to the selection effect of capsaicin over time. Additionally, alterations of the microbial interaction networks and their metabolic preferences led to less lactic acid content with greater accumulation of ethyl nonanoate, methyl nonanoate, etc. This study will provide a perspective for selecting chili pepper varieties and improving the quality of fermented chili paste.
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12
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Mao J, Zhou Z, Yang H. Microbial succession and its effect on the formation of umami peptides during sufu fermentation. Front Microbiol 2023; 14:1181588. [PMID: 37138594 PMCID: PMC10149673 DOI: 10.3389/fmicb.2023.1181588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 03/30/2023] [Indexed: 05/05/2023] Open
Abstract
Sufu, a traditional Chinese fermented food, is famous for its unique flavor, especially umami. However, the formation mechanism of its umami peptides is still unclear. Here, we investigated the dynamic change of both umami peptides and microbial communities during sufu production. Based on peptidomic analysis, 9081 key differential peptides were identified, which mainly involved in amino acid transport and metabolism, peptidase activity and hydrolase activity. Twenty-six high-quality umami peptides with ascending trend were recognized by machine learning methods and Fuzzy c-means clustering. Then, through correlation analysis, five bacterial species (Enterococcus italicus, Leuconostoc citreum, L. mesenteroides, L. pseudomesenteroides, Tetragenococcus halophilus) and two fungi species (Cladosporium colombiae, Hannaella oryzae) were identified to be the core functional microorganisms for umami peptides formation. Functional annotation of five lactic acid bacteria indicated their important functions to be carbohydrate metabolism, amino acid metabolism and nucleotide metabolism, which proved their umami peptides production ability. Overall, our results enhanced the understanding of microbial communities and the formation mechanism of umami peptides in sufu, providing novel insights for quality control and flavor improvement of tofu products.
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Affiliation(s)
- Jieqi Mao
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Zhilei Zhou
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Hongshun Yang
- Shaoxing Key Laboratory of Traditional Fermentation Food and Human Health, Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, Zhejiang, China
- *Correspondence: Hongshun Yang,
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13
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Wei G, Chitrakar B, Regenstein JM, Sang Y, Zhou P. Microbiology, flavor formation, and bioactivity of fermented soybean curd (furu): A review. Food Res Int 2023; 163:112183. [PMID: 36596125 DOI: 10.1016/j.foodres.2022.112183] [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: 09/22/2022] [Revised: 10/30/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
Soybeans are an important plant-based food but its beany flavor and anti-nutritional factors limit its consumption. Fermentation is an effective way to improve its flavor and nutrition. Furu is a popular fermented soybean curd and mainly manufactured in Asia, which has been consumed for thousands of years as an appetizer because of its attractive flavors. This review first classifies furu products on the basis of various factors; then, the microorganisms involved in its fermentation and their various functions are discussed. The mechanisms for the formation of aroma and taste compounds during fermentation are also discussed; and the microbial metabolites and their bioactivities are analyzed. Finally, future prospects and challenges are introduced and further research is proposed. This information is needed to protect the regional characteristics of furu and to regulate its consistent quality. The current information suggests that more in vivo experiments and further clinical trials are needed to confirm its safety and the microbial community needs to be optimized and standardized for each type of furu to improve the production process.
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Affiliation(s)
- Guanmian Wei
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei Province 071001, China; State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Bimal Chitrakar
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei Province 071001, China
| | - Joe M Regenstein
- Department of Food Science, Cornell University, Ithaca, NY 14853-7201, USA
| | - Yaxin Sang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei Province 071001, China
| | - Peng Zhou
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China.
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Santamarina-García G, Amores G, Hernández I, Morán L, Barrón LJR, Virto M. Relationship between the dynamics of volatile aroma compounds and microbial succession during the ripening of raw ewe milk-derived Idiazabal cheese. Curr Res Food Sci 2022; 6:100425. [PMID: 36691591 PMCID: PMC9860272 DOI: 10.1016/j.crfs.2022.100425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/10/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Cheese microbiota contributes to various biochemical processes that lead to the formation of volatile compounds and the development of flavour during ripening. Nonetheless, the role of these microorganisms in volatile aroma compounds production is little understood. This work reports for the first time the dynamics and odour impact of volatile compounds, and their relationship to microbial shifts during the ripening of a raw ewe milk-derived cheese (Idiazabal). By means of SPME-GC-MS, 81 volatile compounds were identified, among which acids predominated, followed by esters, ketones and alcohols. The ripening time influenced the abundance of most volatile compounds, thus the moments of greatest abundance were determined (such as 30-60 days for acids). Through Odour Impact Ratio (OIR) values, esters and acids were reported as the predominant odour-active chemical families, while individually, ethyl hexanoate, ethyl 3-methyl butanoate, ethyl butanoate, butanoic acid or 3-methyl butanal were notable odorants, which would provide fruity, rancid, cheesy or malt odour notes. Using a bidirectional orthogonal partial least squares (O2PLS) approach with Spearman's correlations, 12 bacterial genera were reported as key bacteria for the volatile and aromatic composition of Idiazabal cheese, namely Psychrobacter, Enterococcus, Brevibacterium, Streptococcus, Leuconostoc, Chromohalobacter, Chryseobacterium, Carnobacterium, Lactococcus, Obesumbacterium, Stenotrophomonas and Flavobacterium. Non-starter lactic acid bacteria (NSLAB) were highly related to the formation of certain acids, esters and alcohols, such as 3-hexenoic acid, ethyl butanoate or 1-butanol. On the other hand, the starter LAB (SLAB) was related to particular ketones production, specifically 3-hydroxy-2-butanone; and environmental and/or non-desirable bacteria to certain ketones, hydrocarbons and sulphur compounds formation, such as 2-propanone, t-3-octene and dimethyl sulphone. Additionally, the SLAB Lactococcus and Psychrobacter, Brevibacterium and Chromohalobacter were described as having a negative effect on aroma development caused by NSLAB and vice versa. These results provide novel knowledge to help understand the aroma formation in a raw ewe milk-derived cheese.
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Affiliation(s)
- Gorka Santamarina-García
- Lactiker Research Group, Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain,Corresponding author.
| | - Gustavo Amores
- Lactiker Research Group, Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain
| | - Igor Hernández
- Lactiker Research Group, Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain
| | - Lara Morán
- Lactiker Research Group, Department of Pharmacy and Food Sciences, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain
| | - Luis Javier R. Barrón
- Lactiker Research Group, Department of Pharmacy and Food Sciences, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain
| | - Mailo Virto
- Lactiker Research Group, Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain,Corresponding author.
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Sun H, Chen X, Xiang Y, Hu Q, Zhao L. Fermentation characteristics and flavor properties of Hericium erinaceus and Tremella fuciformis fermented beverage. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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16
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Relationship between microbial community and flavor profile during the fermentation of chopped red chili (Capsicum annuum L.). FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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17
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Wang D, Chen G, Tang Y, Li J, Huang R, Ye M, Ming J, Wu Y, Xu F, Lai X, Zhang Q, Zhang W. Correlation between autochthonous microbial communities and flavor profiles during the fermentation of mustard green paocai (Brassica juncea Coss.), a typical industrial-scaled salted fermented vegetable. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Qiu Y, Li C, Dong H, Yuan H, Ye S, Huang X, Zhang X, Wang Q. Analysis of key fungi and their effect on the edible quality of HongJun tofu, a Chinese fermented okara food. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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