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Bai X, Zhang Q, Zhou X, Yao J, Wan P, Chen DW. Use of egg yolk phospholipids to improve the thermal-oxidative stability of fatty acids, capsaicinoids and carotenoids in chili oil. Food Chem 2024; 451:139423. [PMID: 38677135 DOI: 10.1016/j.foodchem.2024.139423] [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: 01/15/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/29/2024]
Abstract
Phospholipids can act as antioxidants in food. In this study, egg yolk phospholipids (EPL) and sunflower oil were utilized in making chili oil, and proton nuclear magnetic resonance spectroscopy was employed to quantify the concentrations of fatty acyl groups, carotenoids, capsaicinoids in chili oil according to their specific signals in the spectra. The results showed that the changes in the concentrations of fatty acyl groups in the control samples were greater than those in the EPL-treated samples at the same frying temperature, while the contents of carotenoids and capsaicinoids were significantly lower than those of the EPL-treated samples when fried at 150 °C (p < 0.05). Two-way ANOVA indicated that frying temperature and EPL treatment, as well as their interaction had significant impacts on the thermal-oxidative stability of chili oil (p < 0.05). The results suggest that EPL may act as antioxidants during frying, and EPL can improve the thermal-oxidative stability of chili oil.
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Affiliation(s)
- Xueying Bai
- Department of Food Science, Guangxi University, Nanning, Guangxi 530004, China; Fisheries Research Institute of Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou 550025, China
| | - Qin Zhang
- Department of Food Science, Guangxi University, Nanning, Guangxi 530004, China
| | - Xiatao Zhou
- Department of Food Science, Guangxi University, Nanning, Guangxi 530004, China
| | - Jingyu Yao
- Department of Food Science, Guangxi University, Nanning, Guangxi 530004, China
| | - Peng Wan
- Department of Food Science, Guangxi University, Nanning, Guangxi 530004, China
| | - De-Wei Chen
- Department of Food Science, Guangxi University, Nanning, Guangxi 530004, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Education Department of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530004, China.
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2
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Chen J, Huang Y, Wang X, He J, Li W, Lu M, Sun X, Yin Y. Revealing core functional microorganisms in the fermentation process of Qicaipaojiao (Capsicum annuum L.) based on microbial metabolic network. Food Res Int 2024; 187:114315. [PMID: 38763628 DOI: 10.1016/j.foodres.2024.114315] [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: 03/04/2024] [Revised: 04/09/2024] [Accepted: 04/16/2024] [Indexed: 05/21/2024]
Abstract
Paojiao, a typical Chinese traditional fermented pepper, is favored by consumers for its unique flavor profile. Microorganisms, organic acids, amino acids, and volatile compounds are the primary constituents influencing the development of paojiao's flavor. To elucidate the key flavor compounds and core microorganisms of Qicaipaojiao (QCJ), this study conducted a comprehensive analysis of the changes in taste substances (organic acids and amino acids) and volatile flavor compounds during QCJ fermentation. Key flavor substances in QCJ were identified using threshold aroma value and odor activity value and the core microorganisms of QCJ were determined based on the correlation between dominant microorganisms and the key flavor substances. During QCJ fermentation, 16 key taste substances (12 free amino acids and 4 organic acids) and 12 key aroma substances were identified. The fermentation process involved 10 bacteria and 7 fungal genera, including Lactiplantibacillus, Leuconostoc, Klebsiella, Pichia, Wickerhamomyces, and Candida. Correlation analysis revealed that the core functional microorganisms encompassed representatives from 8 genera, including 5 bacterial genera (Lactiplantibacillus, Weissella, Leuconostoc, Klebsiella, and Kluyvera) and 3 fungal genera (Rhodotorula, Phallus, and Pichia). These core functional microorganisms exhibited significant correlations with approximately 70 % of the key flavor substances (P < 0.05). This study contributes to an enhanced understanding of flavor formation mechanisms and offers valuable insight into flavor quality control in food fermentation processes.
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Affiliation(s)
- Ju Chen
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Yubing Huang
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Xueya Wang
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China.
| | - Jianwen He
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China.
| | - Wenxin Li
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Min Lu
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Xiaojing Sun
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Yong Yin
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
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3
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Jiang Q, Zhao S, Zhao W, Wang P, Qin P, Wang J, Zhao Y, Ge Z, Zhao X, Wang D. The role of water distribution, cell wall polysaccharides, and microstructure on radish ( Raphanus sativus L.) textural properties during dry-salting process. Food Chem X 2024; 22:101407. [PMID: 38711773 PMCID: PMC11070821 DOI: 10.1016/j.fochx.2024.101407] [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: 02/17/2024] [Revised: 04/08/2024] [Accepted: 04/21/2024] [Indexed: 05/08/2024] Open
Abstract
Radish (Raphanus sativus L.) undergoes texture changes in their phy-chemical properties during the long-term dry-salting process. In our study, we found that during the 60-day salting period, the hardness and crispness of radish decreased significantly. In further investigation, we observed that the collaborative action of pectin methylesterase (PME) and polygalacturonase (PG) significantly decreased the total pectin, alkali-soluble pectin (ASP), and chelator-soluble pectin (CSP) content, while increasing the water-soluble pectin (WSP) content. Furthermore, the elevated activities of cellulase and hemicellulase directly led to the notable fragmentation of cellulose and hemicellulose. The above reactions jointly induced the depolymerization and degradation of cell wall polysaccharides, resulting in an enlargement of intercellular spaces and shrinkage of the cell wall, which ultimately led to a reduction in the hardness and crispness of the salted radish. This study provided key insights and guidance for better maintaining textural properties during the dry-salting process of radish.
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Affiliation(s)
- Qianqian Jiang
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Shuang Zhao
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Wenting Zhao
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Pan Wang
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Peiyou Qin
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Junjuan Wang
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Yuanyuan Zhao
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Zhiwen Ge
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Xiaoyan Zhao
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Dan Wang
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
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4
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Moosavi SF, Haghighi M, Mirmazloum I. Interacting effects of phytohormones and fruit pruning on the morpho-physiological and biochemical attributes of bell pepper. Sci Rep 2024; 14:14801. [PMID: 38926600 PMCID: PMC11208527 DOI: 10.1038/s41598-024-65855-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024] Open
Abstract
Several factors, such as pruning and phytohormones, have demonstrated an influence on both the quantity and quality in the bell pepper. A factorial experiment using a completely randomized design was conducted on the Lumos yellow bell in a greenhouse. Treatments were the fruit pruning (0, 10, and 30%) and foliar application of phytohormones auxin (AUX) and gibberellic acid (GA3) at concentrations of 10 µM AUX, 10 µM GA3, 10 µM AUX + 10 µM GA3+, and 20 µM AUX + 10 µM GA3 along with controls. The plants were sprayed with phytohormones in four growth stages (1: flowering stage when 50% of the flowers were on the plant, 2: fruiting stage when 50% of the fruits were the size of peas, 3: fruit growth stage when 50% of the fruits had reached 50% of their growth, and 4: ripening stage when 50% of the fruits were at color break). The results of the present investigation showed that pruning rate of 30% yielded the highest flesh thickness and vitamin C content, decreased seed count and hastened fruit ripening. The use of GA3 along with AUX has been observed to augment diverse fruit quality characteristics. According to the results, the application of 10% pruning in combination with 20 µM AUX and 10 µM GA3 demonstrated the most significant levels of carotenoids, chlorophyll, and fruit length. The experimental group subjected to the combined treatment of 30% pruning and 10 µM AUX + 10 µM GA3 showed the most noteworthy levels of vitamin C, fruit weight, and fruit thickness. The groups that received the 10 µM GA3 and 20 µM AUX + 10 µM GA3 treatments exhibited the most favorable fruit flavor. According to the research results, the implementation of hormonal treatments 10 µM AUX and 10 µM AUX + 10 µM GA3 in combination with a 30% pruning strategy resulted in the most advantageous yield of bell peppers.
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Affiliation(s)
- Sayedeh Fatemeh Moosavi
- Department of Horticulture, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Maryam Haghighi
- Department of Horticulture, College of Agriculture, Isfahan University of Technology, Isfahan, Iran.
| | - Iman Mirmazloum
- Department of Plant Physiology and Plant Ecology, Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Ménesi Str. 44, 1118, Budapest, Hungary.
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5
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Liu M, Deng N, Hou X, Zhang B, Li H, Wang J. Characterisation of flavour profiles and microbial communities of fermented peppers with different fermentation years by combining flavouromics and metagenomics. Food Chem 2024; 443:138550. [PMID: 38277936 DOI: 10.1016/j.foodchem.2024.138550] [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: 10/20/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 01/28/2024]
Abstract
The changes in flavours, volatile aromas and microbial communities of fermented peppers with different fermentation years and their relationships were investigated in this study. Results indicated a gradual increase in organic acids during fermentation, whereas free amino acids and capsaicinoids reached stability after 1 year of fermentation. Overall, the analysis detected 340 volatile compounds in fermented peppers and regarded 69 of them as differential compounds. Peppers fermented for 2 (FY2) and 4 years (FY4) possessed a greater number of differential volatiles with large odour activity values, thus endowing them with more favourable flavours. Hence, metagenomic analysis compared their microbial communities and functional annotations. Results revealed that Lactiplantibacillus plantarum and Zygosaccharomyces rouxii were the dominant bacterium and fungus, and metabolism was the main Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway in FY2. Correlation analysis demonstrated that Hyphopichia, Kazachstania and Clavispora were highly positively correlated with 12 key aroma flavours.
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Affiliation(s)
- Miao Liu
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre of Prepared Dishes, Changsha 410114, China
| | - Na Deng
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre of Prepared Dishes, Changsha 410114, China
| | - Xiaoyi Hou
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre of Prepared Dishes, Changsha 410114, China
| | - Bo Zhang
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre of Prepared Dishes, Changsha 410114, China
| | - Hui Li
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre of Prepared Dishes, Changsha 410114, China
| | - Jianhui Wang
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre of Prepared Dishes, Changsha 410114, China.
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6
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Liu M, Deng N, Li H, Hou X, Zhang B, Wang J. Characterization and comparison of flavors in fresh and aged fermented peppers: Impact of different varieties. Food Res Int 2024; 182:114187. [PMID: 38519195 DOI: 10.1016/j.foodres.2024.114187] [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: 10/20/2023] [Revised: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 03/24/2024]
Abstract
The flavor profiles of fresh and aged fermented peppers obtained from four varieties were thoroughly compared in this study. A total of 385 volatile compounds in fermented pepper samples were detected by flavoromics (two-dimensional gas chromatography-time-of-flight mass spectrometry). As fermentation progressed, both the number and the total concentration of volatile compounds changed, with esters, alcohols, acids, terpenoids, sulfur compounds, and funans increasing, whereas hydrocarbons and benzenes decreased. In contrast to the fresh fermented peppers, the aged fermented samples exhibited lower values of pH, total sugars, and capsaicinoids but higher contents of organic acids and free amino acids. Furthermore, the specific differences and characteristic aroma substances among aged fermented peppers were unveiled by multivariate statistical analysis. Overall, 64 volatiles were screened as differential compounds. In addition, Huanggongjiao samples possessed the most abundant differential volatiles and compounds with odor activity values > 1, which were flavored with fruity, floral, and slightly phenolic odors. Correlation analysis demonstrated that the levels of 23 key aroma compounds (e.g., ethyl 2-methylbutyrate, 1-butanol, and ethyl valerate) showed a significantly positive correlation with Asp, Glu and 5 organic acids. By contrast, there is a negative association between the pH value and total sugar. Overall, aging contributed significantly to the flavor attributes of fermented peppers.
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Affiliation(s)
- Miao Liu
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Center of Prepared Dishes, Changsha, 410114, China
| | - Na Deng
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Center of Prepared Dishes, Changsha, 410114, China
| | - Hui Li
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Center of Prepared Dishes, Changsha, 410114, China
| | - Xiaoyi Hou
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Center of Prepared Dishes, Changsha, 410114, China
| | - Bo Zhang
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Center of Prepared Dishes, Changsha, 410114, China
| | - Jianhui Wang
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Prepared Dishes Modern Industrial College, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Center of Prepared Dishes, Changsha, 410114, China.
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7
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Zhu J, Sun Y, Zhang S, Li H, Liu Z, Liu X, Yi J. Unraveling the Genetic Adaptations in Cell Surface Composition and Transporters of Lactiplantibacillus plantarum for Enhanced Acid Tolerance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5368-5378. [PMID: 38394628 DOI: 10.1021/acs.jafc.3c09292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
This study employed adaptive laboratory evolution to improve the acid tolerance of Lactiplantibacillus plantarum, a vital strain in food fermentation and a potential probiotic. Phenotype and genomic analyses identified the overexpression of stress response proteins, ATP synthases, and transporters as pivotal in conferring acid tolerance to the evolved strains. These adaptations led to a shorter lag phase, improved survival rates, and higher intracellular pH values compared to the wild-type strain under acid stress conditions. Additionally, the evolved strains showed an increased expression of genes in the fatty acid synthesis pathway, resulting in a higher production of unsaturated fatty acids. The changes in cell membrane composition possibly prevented H+ influx, while mutant genes related to cell surface structure contributed to observed elongated cells and thicker cell surface. These alterations in cell wall and membrane composition, along with improved transporter efficiency, were key factors contributing to the enhanced acid tolerance in the evolved strains.
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Affiliation(s)
- Jiang Zhu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
| | - Yuwei Sun
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
| | - Hong Li
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Key Laboratory for Food Advanced Manufacturing, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
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8
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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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9
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Feixia D, Ya L, Dafei L, Dingjiang Z, Guiping H, Zeliang W, Lirong J. Kaili Red sour soup: Correlations in composition/microbial metabolism and flavor profile during post-fermentation. Food Chem 2024; 435:137602. [PMID: 37813025 DOI: 10.1016/j.foodchem.2023.137602] [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: 05/07/2023] [Revised: 08/31/2023] [Accepted: 09/24/2023] [Indexed: 10/11/2023]
Abstract
Flavor and chemical changes with microbial succession during Red-Sour-Soup (RSS) post-fermentation were urgent to be revealed for quality control. RSS post-fermentation could be divided into three stages according to acidity, nutrients exhausting and total colony counts, without coliform bacteria growth nor nitrite peak was observed. Lactobacillus acetotolerans induced over 50 % increase of lactic acid, finally conducing to the lactic acid-dominated sour taste of RSS. The volatile compounds totally increased by 25.70 % in chili sauce and 32.58 % in tomato sauce (p < 0.05). In early-/middle-stage (pH > 3.5), alcohols and short-chain fatty acids increased, and butyric acid with unpleasant odor became the maximum flavor contributor. Nevertheless, in late-stage (pH < 3.5), with the reduction of alcohols and fatty acids, esters, 2-nonanone and terpenoids with pleasant flavors increased by Clavispora lusitaniae, Pichia, Cladosporium delicatulum and Rozellomycota sp.. In conclusion, the post-fermentation, especially L. acetotolerans metabolism and aciduric fungal esterification were essential for RSS characteristic flavor formation.
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Affiliation(s)
- Duan Feixia
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
| | - Luo Ya
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
| | - Li Dafei
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
| | - Zhong Dingjiang
- Majing Mingyang Food Co., Ltd., Qiandongnan 556000, PR China
| | - He Guiping
- Majing Mingyang Food Co., Ltd., Qiandongnan 556000, PR China
| | - Wei Zeliang
- Core Facilities of West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Jia Lirong
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China.
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10
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Li M, Lao F, Pan X, Yuan L, Zhang D, Wu J. Insights into the mechanisms driving microbial community succession during pepper fermentation: Roles of microbial interactions and endogenous environmental changes. Food Res Int 2024; 179:114033. [PMID: 38342553 DOI: 10.1016/j.foodres.2024.114033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/13/2024]
Abstract
Elucidating the driving mechanism of microbial community succession during pepper fermentation contributes to establishing efficient fermentation regulation strategies. This study utilized three-generation high-throughput sequencing technology, microbial co-occurrence network analysis, and random forest analysis to reveal microbial community succession processes and driving mechanisms during pepper fermentation. The results showed that more positive correlations than negative correlations were observed among microorganisms, with positive correlation proportions of 60 %, 51.03 %, and 71.43 % between bacteria and bacteria, fungi and fungi, and bacteria and fungi in sipingtou peppers, and 69.23 %, 54.93 %, and 79.44 % in zhudachang peppers, respectively. Microbial interactions, mainly among Weissella hellenica, Lactobacillus plantarum, Hanseniaspora opuntiae, and Kazachstania humillis, could drive bacterial and fungal community succession. Notably, the bacterial community successions during the fermentation of two peppers were similar, showing the transition from Leuconostoc pseudomesenteroides, Lactococcus lactis, Weissella ghanensis to Weissella hellenica and Lactobacillus plantarum. However, the fungal community successions in the two fermented peppers differed significantly, and the differential biomarkers were Dipodascus geotrichum and Kazachstania humillis. Differences in autochthonous microbial composition and inherent constituents brought by pepper varieties resulted in different endogenous environmental changes, mainly in fructose, malic acid, and citric acid. Furthermore, endogenous environmental factors could also drive microbial community succession, with succinic acid, lactic acid, and malic acid being the main potential drivers of bacterial community succession, whereas fructose, glucose, and succinic acid were the main drivers of fungal community succession. These results will provide insights into controlling fermentation processes by raw material combinations, optimization of environmental parameters, and microbial interactions.
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Affiliation(s)
- Meilun Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China; Beijing Key Laboratory for Food Non-thermal Processing, Beijing 100083, China
| | - Fei Lao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China; Beijing Key Laboratory for Food Non-thermal Processing, Beijing 100083, China
| | - Xin Pan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China; Beijing Key Laboratory for Food Non-thermal Processing, Beijing 100083, China
| | - Lin Yuan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China; Beijing Key Laboratory for Food Non-thermal Processing, Beijing 100083, China
| | - Donghao Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China; Beijing Key Laboratory for Food Non-thermal Processing, Beijing 100083, China
| | - Jihong Wu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China; Beijing Key Laboratory for Food Non-thermal Processing, Beijing 100083, China.
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11
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Bao X, Zhang S, Xiao Y, Jiang Y, Liu Z, Wang T, Hu X, Yi J. Effect of pasteurization processing and storage conditions on softening of acidified chili pepper: Pectin and it related enzymes. Int J Biol Macromol 2023; 253:126690. [PMID: 37673156 DOI: 10.1016/j.ijbiomac.2023.126690] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/14/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
The softening of acidified chili peppers induced by processing and storage has become a major challenge for the food industry. This study aims to explore the impact of pasteurization techniques, thermal processing (TP), high-pressure processing (HPP), addition of sodium metabisulfite (SMS), and storage conditions (25 °C, 37 °C, and 42 °C for 30 days) on the texture-related properties of acidified chili pepper. The results showed that the textural properties of samples were destructed by TP (the hardness of samples decreased by 19.43 %) but were less affected by HPP and SMS. Compared with processing, storage temperature had a more dominant impact on texture and pectin characteristics. With increased storage temperature, water-solubilized pectin fraction content increased (increased by 160.99 %, 136.74 %, and 13.01 % in TP, HPP, and SMS-stored groups, respectively), but sodium carbonate-solubilized pectin fraction content decreased (decreased by 29.84 %, 26.81 %, and 8.60 % in TP-, HPP-, and SMS-stored groups, respectively), especially in TP-stored groups. Multivariate data analysis showed that softening was more closely related to pectin conversion induced by acid hydrolysis and pectinase depolymerization. This finding offers new perspectives for the production of acidified chili pepper.
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Affiliation(s)
- Xi Bao
- 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, 650500 Kunming, China
| | - Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, 650500 Kunming, China
| | - Yue Xiao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, 650500 Kunming, China
| | - Yongli Jiang
- 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, 650500 Kunming, China
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, 650500 Kunming, China
| | - Tao Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, 650500 Kunming, China
| | - Xiaosong Hu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, 650500 Kunming, China.
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12
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Tian M, Lin K, Yang L, Jiang B, Zhang B, Zhu X, Ren D, Yu H. Characterization of key aroma compounds in gray sufu fermented using Leuconostoc mesenteroides subsp. Mesenteroides F24 as a starter culture. Food Chem X 2023; 20:100881. [PMID: 37767060 PMCID: PMC10520528 DOI: 10.1016/j.fochx.2023.100881] [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: 06/27/2023] [Revised: 08/17/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Gray sufu is a traditional fermented bean product with strong flavor in China, but traditional fermentation methods often lead to its off-flavor. This study was performed to investigate the flavor quality characteristics of gray sufu fermented using L. mesenteroides F24. Results showed 220 volatile compounds in gray sufu, among which alcohols and esters were the main volatiles. Inoculation with L. mesenteroides F24 considerably affected the contents of flavor substances in gray sufu and substantially increased the main flavor compounds. In addition, 29 kinds of key volatile compounds were identified by analyzing the ROAVs. Four unique key flavor substances were found in gray sufu inoculated with L. mesenteroides F24. This study is the first report on the feasibility of L. mesenteroides F24 as a promising starter culture to improve the flavor quality of gray sufu. The results provide a theoretical basis for improving the processing and quality control of gray sufu.
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Affiliation(s)
- Meng Tian
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin Province 130118, China
- Soybean Research & Development Centre, Division of Soybean Processing, Chinese Agricultural Research System, Changchun 130118, China
| | - Ke Lin
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin Province 130118, China
- Soybean Research & Development Centre, Division of Soybean Processing, Chinese Agricultural Research System, Changchun 130118, China
| | - Liu Yang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin Province 130118, China
| | - Bin Jiang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin Province 130118, China
| | - Biying Zhang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin Province 130118, China
| | - Xianming Zhu
- Changchun Zhu Laoliu Food Co., Ltd., Changchun, China
| | - Dayong Ren
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin Province 130118, China
- Soybean Research & Development Centre, Division of Soybean Processing, Chinese Agricultural Research System, Changchun 130118, China
| | - Hansong Yu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin Province 130118, China
- Soybean Research & Development Centre, Division of Soybean Processing, Chinese Agricultural Research System, Changchun 130118, China
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13
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Tan X, Cui F, Wang D, Lv X, Li X, Li J. Fermented Vegetables: Health Benefits, Defects, and Current Technological Solutions. Foods 2023; 13:38. [PMID: 38201066 PMCID: PMC10777956 DOI: 10.3390/foods13010038] [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: 11/30/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
This review summarizes current studies on fermented vegetables, analyzing the changes in nutritional components during pickling, the health benefits of fermented vegetables, and their safety concerns. Additionally, the review provides an overview of the applications of emergent non-thermal technologies for addressing these safety concerns during the production and processing of fermented vegetables. It was found that vitamin C would commonly be lost, the soluble protein would degrade into free amino acids, new nutrient compositions would be produced, and the flavor correlated with the chemical changes. These changes would be influenced by the variety/location of raw materials, the original bacterial population, starter cultures, fermentation conditions, seasoning additions, and post-fermentation processing. Consuming fermented vegetables benefits human health, including antibacterial effects, regulating intestinal bacterial populations, and promoting health (anti-cancer effects, anti-diabetes effects, and immune regulation). However, fermented vegetables have chemical and biological safety concerns, such as biogenic amines and the formation of nitrites, as well as the existence of pathogenic microorganisms. To reduce hazardous components and control the quality of fermented vegetables, unique starter cultures, high pressure, ultrasound, cold plasma, photodynamic, and other technologies can be used to solve these problems.
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Affiliation(s)
- Xiqian Tan
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China (X.L.); (J.L.)
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Fangchao Cui
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China (X.L.); (J.L.)
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Dangfeng Wang
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China (X.L.); (J.L.)
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Xinran Lv
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China (X.L.); (J.L.)
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Xuepeng Li
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China (X.L.); (J.L.)
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Jianrong Li
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China (X.L.); (J.L.)
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
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14
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Li Y, Luo X, Guo H, Bai J, Xiao Y, Fu Y, Wu Y, Wan H, Huang Y, Gao H. Metabolomics and metatranscriptomics reveal the influence mechanism of endogenous microbe (Staphylococcus succinus) inoculation on the flavor of fermented chili pepper. Int J Food Microbiol 2023; 406:110371. [PMID: 37659279 DOI: 10.1016/j.ijfoodmicro.2023.110371] [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: 07/11/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/04/2023]
Abstract
This study integrated metabolomic and metatranscriptomic techniques to examine how the endogenous microbe, Staphylococcus succinus, influenced the essential flavor of fermented chili peppers. The mechanisms governing spontaneous fermentation and S. succinus-inoculated fermentation were also elucidated. Esters (e.g., ethyl undecanoate, isoamyl acetate, and methyl salicylate), terpenes (e.g., terpinen-4-ol), and alcohols (e.g., α-terpineol, linalool, and 4-methyl-3-heptanol) were found to be the key aroma-active compounds, aspartic acid (Asp) and glutamic acid (Glu) were identified as primary flavoring free amino acids. Notably, during the early stages of S. succinus-inoculated fermentation, the production of these essential metabolites was abundant, while their gradual increase over time was observed in the case of spontaneous fermentation. Metatranscriptomic analysis revealed that S. succinus inoculation could up-regulate genes related to glycolysis, amino acid metabolism, and aroma compound synthesis. These changes sequentially boosted the production of sweet and umami free amino acids, enhanced organic acid levels, increased unique aroma compound generation, and further improved the flavor and quality of the fermented chili peppers. Therefore, S. succinus inoculation can augment the sensory quality of fermented chili peppers, making this strain a promising candidate for Sichuan pickle fermentation starters.
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Affiliation(s)
- Yumeng Li
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Xiaoqin Luo
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Huan Guo
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Jinrong Bai
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; Research Center for Nutrition, Metabolism & Food Safety, West China-PUMC C.C. Chen Institute of Health, Sichuan University, Chengdu 610041, China
| | - Yue Xiao
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; Research Center for Nutrition, Metabolism & Food Safety, West China-PUMC C.C. Chen Institute of Health, Sichuan University, Chengdu 610041, China
| | - Yuan Fu
- Jian Yang City Product Quality Supervision & Testing Institute, Jianyang, China
| | - Yanping Wu
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Hongyu Wan
- Jian Yang City Product Quality Supervision & Testing Institute, Jianyang, China.
| | - Yina Huang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; Research Center for Nutrition, Metabolism & Food Safety, West China-PUMC C.C. Chen Institute of Health, Sichuan University, Chengdu 610041, China
| | - Hong Gao
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China.
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15
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İncili CA, Karatepe P, Akgöl M, Tekin A, İncili GK, Hayaloğlu AA. Evaluation of homemade fermented pickle juice as a marinade: Effects on the microstructure, microbiological, physicochemical, textural properties, and sensory attributes of beef strip loin steaks. Meat Sci 2023; 205:109305. [PMID: 37562268 DOI: 10.1016/j.meatsci.2023.109305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/22/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023]
Abstract
The current study aimed to characterize homemade fermented pickle juice and evaluate its efficacy as a marinade on physicochemical, microbiological, textural properties, microstructure, and sensory attributes of the strip loins. Organic acids, phenolics, flavonoids, volatiles, total phenolic content (TPC), and in-vitro antioxidant capacity (ABTS and FRAP) analyses were carried out. Furthermore, minimum inhibitory concentration (MIC), and the diameter of inhibition zones of the pickle juice were determined against Escherichia coli O157:H7, Salmonella Typhimurium, S. enteritidis, and Listeria monocytogenes. The strip loins were marinated with five different concentrations (10%, 25%, 50%, 75%, and 100%) of pickle juice at 4 °C for 24 h. A total of 4 organic acids, 23 phenolic and flavonoid compounds, and 69 volatiles were identified in the pickle juice. The TPC, ABTS, and FRAP values of the pickle juice were found to be 184.24 ± 33.28 GAE/L, 44.48 ± 0.41 mg TEAC/L, and 2.79 ± 0.01 mM FE/L, respectively. The MIC and inhibition zones were recorded between 7.81 and 12.50% and 8.25-13.80 mm against pathogenic bacteria, respectively. The textural properties of the strip loins marinated with 100% pickle were improved compared to the control (P < 0.05). Moreover, this concentration decreased the number of pathogens in strip loins, ranging between 1.07 and 2.77 log10 CFU/g (P < 0.05). Regarding sensory attributes, the strip loins marinated with 50% and 100% pickle juice had higher scores compared to the non-marinated samples. The results of this study indicated that pickle juice can be evaluated as a marinade to improve the microbiological quality and textural properties of strip loins.
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Affiliation(s)
- Canan Akdeniz İncili
- Department of Pathology, Faculty of Veterinary Medicine, Fırat University, Elazığ, Turkey
| | - Pınar Karatepe
- Food Processing Department, Keban Vocational School, Fırat University, Elazığ, Turkey
| | - Müzeyyen Akgöl
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Fırat University, Elazığ, Turkey
| | - Ali Tekin
- Food Processing Department, Keban Vocational School, Fırat University, Elazığ, Turkey; Department of Food Engineering, Engineering Faculty, Inonu University, Malatya, Turkey
| | - Gökhan Kürşad İncili
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Fırat University, Elazığ, Turkey
| | - Ali Adnan Hayaloğlu
- Department of Food Engineering, Engineering Faculty, Inonu University, Malatya, Turkey.
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16
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Yang Z, Fan H, Li R, Li B, Fan J, Ge J, Xu X, Pan S, Liu F. Potential role of cell wall pectin polysaccharides, water state, and cellular structure on twice "increase-decrease" texture changes during kohlrabi pickling process. Food Res Int 2023; 173:113308. [PMID: 37803613 DOI: 10.1016/j.foodres.2023.113308] [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: 01/21/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 10/08/2023]
Abstract
Pickled kohlrabi is a traditional and favored vegetable product in China. During pickling, the hardness, springiness, and chewiness of kohlrabi all experienced a typical change with twice "increase-decrease" trend. However, little is known about its mechanism. In this study, in situ analysis including immunofluorescence, low field nuclear magnetic, and transmission electron microscopy were used to explore the effects of cell wall pectin, water state, and cellular structure on kohlrabi texture changes during pickling. Results revealed that at the early stage, due to the rapid loss of water after three times salting, the cells shrank and the interstitial space reduced, resulting in the first increase on kohlrabi texture. Subsequently, the dehydration-rehydration caused by the first brine processing resulted in the first decrease on kohlrabi texture. Then under the action of PME enzyme, more low-esterified pectin was produced, and chelate-soluble pectin with more branched structure was further formed, leading to another elevation of the sample texture. As the pickling continued, under the combined action of PG and PME, the molecular weight of pectin was decreased and the rigidity of the cell tissue was destroyed, caused kohlrabi texture continued to decline. These researches could provide important information and guidance for better maintaining the texture of pickled vegetables during processing.
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Affiliation(s)
- Zhixuan Yang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Hekai Fan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Ruoxuan Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Bowen Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Jiangtao Fan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Jinjiang Ge
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Xiaoyun Xu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Siyi Pan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China
| | - Fengxia Liu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, PR China; Hubei Key Laboratory of Fruit & Vegetable Processing & Quality Control (Huazhong Agricultural University), Wuhan, Hubei, PR China.
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17
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Xiao Y, Zhang S, Liu Z, Wang T, Cai S, Chu C, Hu X, Yi J. Effect of inoculating Pichia spp. starters on flavor formation of fermented chili pepper: Metabolomics and genomics approaches. Food Res Int 2023; 173:113397. [PMID: 37803735 DOI: 10.1016/j.foodres.2023.113397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 10/08/2023]
Abstract
The influence of Pichia spp. on flavor formation and metabolic pathways during chili pepper fermentation was investigated in this study. Multiple omics approaches were employed, including metabolomics analysis to identify volatile and non-volatile flavor compounds, and genomic analysis to gain insights into the underlying molecular mechanism driving flavor formation of chili peppers inoculated with Pichia spp. The results showed that inoculation with Pichia spp. accelerated fermentation process of chili peppers compared to spontaneous fermentation. Metabolomics analysis showed P. fermentans promoted characteristic terpenes [e.g., (Z)-β-ocimene and linalool], L-glutamate, gamma-aminobutyric acid, and succinate production, while P. manshurica produced more alcohols (e.g., isoamyl alcohol and phenylethyl alcohol) and phenols (e.g., 4-ethylguaiacol and 2-methoxy-4-methylphenol). Genomics analysis revealed that a substantial portion of the genes in Pichia spp. were associated with amino acid and carbohydrate metabolism. Specifically, the pathways involved in amino acid metabolism and the release of glycoside-bound aromatic compounds were identified as the primary drivers behind the unique flavor of fermented chili peppers, facilitated by Pichia spp.
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Affiliation(s)
- Yue Xiao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Tao Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Shengbao Cai
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
| | - Chuanqi Chu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Xiaosong Hu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China; International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China.
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18
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Li K, Chen T, Shi X, Chen W, Luo X, Xiong H, Tan X, Liu Y, Zhang D. Residue behavior and processing factors of thirteen field-applied pesticides during the production of Chinese traditional fermented chopped pepper and chili powder. Food Chem X 2023; 19:100854. [PMID: 37780331 PMCID: PMC10534233 DOI: 10.1016/j.fochx.2023.100854] [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: 05/04/2023] [Revised: 08/10/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023] Open
Abstract
In this study, the fate, processing factors and relationship with physicochemical properties of thirteen pesticides in field-collected pepper samples during Chinese chopped pepper and chili powder production was systematically studied. The washing, air-drying, chopping and salting and fermentation processes reduced 24.8%-62.8%, 0.9%-26.4%, 25.1%-50.3% and 16.3%-90.0% of thirteen pesticide residues, respectively, while the sun-drying processing increased the residues of eleven pesticides by 1.27-5.19 fold. The PFs of thirteen pesticides were < 1 in chopped pepper production and the PFs of eleven pesticides were more than 1 for chili powder production. The chopped pepper processing efficiency have most negative correlation with octanol-water partition coefficient. In contrast, the chili powder processing efficiency have most positive correlation with vapour pressure. Thus, this study can offer important references for assessment the pesticide residue levels in Chinese traditional fermented chopped pepper and chili powder production from fresh peppers.
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Affiliation(s)
- Kailong Li
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Tongqiang Chen
- Hunan Provincial institute of product and goods quality inspection, Changsha 410007, China
| | - Xiaobin Shi
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Wuying Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Xiangwen Luo
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Hao Xiong
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Xinqiu Tan
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Yong Liu
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Deyong Zhang
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China
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19
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Wang Z, Liu X, Fang Y, Wang X, Hu Y, Li Y. Microwaves affect the formation of volatile compounds in peper powder by changing the nucleophilic addition reactions in Maillard reactions. Food Chem X 2023; 19:100828. [PMID: 37780296 PMCID: PMC10534142 DOI: 10.1016/j.fochx.2023.100828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 08/01/2023] [Accepted: 08/05/2023] [Indexed: 10/03/2023] Open
Abstract
We explored the effect of microwave heating (MWH) and electric heating (ETH) on the volatile compounds (VCs) of pepper (Capsicum annuum L.). The spectral of the produced melanoidins by baking were used to screen samples with similar baking degrees. Mass spectrometry was used to detect the differences of VCs in samples. The results showed a dose-dependent effect between the intensity of absorption and fluorescence of melanoidins, which can be utilized as indicators for assessment baking degree. MWH samples produced larger variety of VCs than ETH. Changes in the variety and content of VCs infer changes in the flavor of pepper. According to the mechanism of Maillard reaction (MR) and MWH, it was deduced that MWH changes the type of chemical reaction in MR by affecting the distribution of valence electrons in the compounds. Therefore, MWH can be used as a novel method to modify the VCs and flavor of peppers.
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Affiliation(s)
- Zhisong Wang
- College of Public Health, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi 563000, China
| | - Xiang Liu
- College of Public Health, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi 563000, China
| | - Yihua Fang
- Market Supervision Commission of Zunyi Municipality, Zunyi 563000, China
| | - Xueya Wang
- Chili Pepper Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550025, China
| | - Ying Hu
- College of Public Health, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi 563000, China
| | - Yan Li
- College of Public Health, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi 563000, China
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20
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Yuan Y, Yang Y, Xiao L, Qu L, Zhang X, Wei Y. Advancing Insights into Probiotics during Vegetable Fermentation. Foods 2023; 12:3789. [PMID: 37893682 PMCID: PMC10606808 DOI: 10.3390/foods12203789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Fermented vegetables have a long history and are enjoyed worldwide for their unique flavors and health benefits. The process of fermentation improves the nutritional value, taste, and shelf life of foods. Microorganisms play a crucial role in this process through the production of metabolites. The flavors of fermented vegetables are closely related to the evaluation and succession of microbiota. Lactic acid bacteria (LABs) are typically the dominant bacteria in fermented vegetables, and they help inhibit the growth of spoilage bacteria and maintain a healthy gut microbiota in humans. However, homemade and small-scale artisanal products rely on spontaneous fermentation using bacteria naturally present on fresh vegetables or from aged brine, which may introduce external microorganisms and lead to spoilage and substandard products. Hence, understanding the role of LABs and other probiotics in maintaining the quality and safety of fermented vegetables is essential. Additionally, selecting probiotic fermentation microbiota and isolating beneficial probiotics from fermented vegetables can facilitate the use of safe and healthy starter cultures for large-scale industrial production. This review provides insights into the traditional fermentation process of making fermented vegetables, explains the mechanisms involved, and discusses the use of modern microbiome technologies to regulate fermentation microorganisms and create probiotic fermentation microbiota for the production of highly effective, wholesome, safe, and healthy fermented vegetable foods.
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Affiliation(s)
- Yingzi Yuan
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Yutong Yang
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Lele Xiao
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Lingbo Qu
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
- Food Laboratory of Zhongyuan, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoling Zhang
- Food Laboratory of Zhongyuan, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yongjun Wei
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
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21
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Xiong Y, Guan J, Wu B, Wang T, Yi Y, Tang W, Zhu K, Deng J, Wu H. Exploring the Profile Contributions in Meyerozyma guilliermondii YB4 under Different NaCl Concentrations Using GC-MS Combined with GC-IMS and an Electronic Nose. Molecules 2023; 28:6979. [PMID: 37836821 PMCID: PMC10574234 DOI: 10.3390/molecules28196979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/04/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
Using Meyerozyma guilliermondii YB4, which was isolated and screened from southern Sichuan pickles in the laboratory, as the experimental group, we investigated the changes in growth, total ester content, and volatile flavor substances of M. guilliermondii YB4 under different NaCl concentrations. The growth of M. guilliermondii YB4 was found to be inhibited by NaCl, and the degree of inhibition increased at higher NaCl concentrations. Additionally, the total ester content of the control group (CK) was significantly lower compared to the other groups (p < 0.05). The application of NaCl also resulted in distinct changes in the volatile profile of YB4, as evidenced by E-nose results. Gas chromatography-mass spectrometry (GC-MS) and gas chromatography-ion mobility spectrometry (GC-IMS) were employed to analyze the volatile compounds. A total of 148 and 86 volatiles were detected and identified using GC-MS and GC-IMS, respectively. Differential volatiles among the various NaCl concentrations in YB4 were determined by a variable importance in projection (VIP) analysis in partial least squares-discriminant analysis (PLS-DA). These differentially expressed volatiles were further confirmed by their relative odor activity value (ROAV) and odor description. Ten key contributing volatiles were identified, including ethanol, 1-pentanol, nonanal, octanal, isoamyl acetate, palmitic acid ethyl ester, acrolein, ethyl isobutanoate, prop-1-ene-3,3'-thiobis, and 2-acetylpyrazine. This study provides insights into the specificities and contributions of volatiles in YB4 under different NaCl concentrations. These findings offer valuable information for the development of aroma-producing yeast agents and the subsequent enhancement in the flavor of southern Sichuan pickles.
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Affiliation(s)
- Yiling Xiong
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Ju Guan
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Baozhu Wu
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Tianyang Wang
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Yuwen Yi
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Wanting Tang
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Kaixian Zhu
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Jing Deng
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Huachang Wu
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
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22
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Wu B, Zhu C, Deng J, Dong P, Xiong Y, Wu H. Effect of Sichuan Pepper ( Zanthoxylum genus) Addition on Flavor Profile in Fermented Ciba Chili ( Capsicum genus) Using GC-IMS Combined with E-Nose and E-Tongue. Molecules 2023; 28:5884. [PMID: 37570854 PMCID: PMC10420873 DOI: 10.3390/molecules28155884] [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: 06/28/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
This study examined the flavor profiles of fermented Ciba chili, comparing samples with Sichuan pepper (HJ) to those without Sichuan pepper (CK), using three analytical techniques: E-tongue, E-nose, and gas chromatography-ion mobility spectrometry (GC-IMS). The results obtained from the E-tongue and E-nose exhibited a clear difference in taste and flavor between CK and HJ. In detail, CK mainly exhibited a sour flavor profile, whereas HJ displayed an intricate and rich flavor. The HS-GC-IMS results identified a total of 60 compounds in the samples, with terpenes, alcohols, and esters being the primary volatile flavor compounds. Additionally, Zanthoxylum was found to significantly enhance the concentration of these compounds in fermented Ciba chili. Through robust principal component analysis (rPCA), 17 distinct flavor compounds were selected. Correlation analysis revealed that most terpenes exhibited positive correlations with LY2/LG, LY2/gCT1, LY2/Gct, LY2/G, LY2/Gh, and terpenes were found in higher concentrations in HJ. This study contributes a theoretical basis and provides data support for optimizing the fermentation process and elucidating the underlying mechanism of characteristic aroma formation in Ciba chili after fermentation.
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Affiliation(s)
- Baozhu Wu
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (B.W.); (J.D.); (P.D.); (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Chenglin Zhu
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China;
| | - Jing Deng
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (B.W.); (J.D.); (P.D.); (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Ping Dong
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (B.W.); (J.D.); (P.D.); (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Yiling Xiong
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (B.W.); (J.D.); (P.D.); (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
| | - Huachang Wu
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China; (B.W.); (J.D.); (P.D.); (Y.X.)
- Cuisine Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China
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23
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Jin Y, Qi Y, Fan M, Zhang J, Kong B, Shao B. Biotransformation of carbendazim in cowpea pickling process. Food Chem 2023; 415:135766. [PMID: 36868064 DOI: 10.1016/j.foodchem.2023.135766] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 02/15/2023] [Accepted: 02/19/2023] [Indexed: 03/05/2023]
Abstract
Carbendazim, a systemic fungicide, is one of the most commonly detected pesticides in cowpeas. Pickled cowpea is a fermented vegetable product with unique flavor favored in China. The dissipation and degradation of carbendazim were investigated in the pickled process. The degradation rate constant of carbendazim in pickled cowpeas was 0.9945 and the half-life of the carbendazim was 14.06 ± 0.82 d. Seven transformation products (TPs) were identified in the pickled process. Furthermore, the toxicity of some TPs show more harmful to three aquatic organisms (TP134) and rats (all the identified TPs) than carbendazim. And most of the TPs posed more development toxicity and mutagenicity than carbendazim. 4 out of 7 TPs were discovered in the real pickled cowpea samples. These results shed light on the degradation and biotransformation of the carbendazim in the pickled process, to better understand the potential health risk of pickled food and evaluate the environmental pollution.
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Affiliation(s)
- Yushen Jin
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Centre for Disease Control and Prevention, Beijing 100013, China
| | - Yan Qi
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Mengdie Fan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jing Zhang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Centre for Disease Control and Prevention, Beijing 100013, China
| | - Biao Kong
- School of Food and Biological Engineering, Xihua University, Chengdu 610039, China
| | - Bing Shao
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Centre for Disease Control and Prevention, Beijing 100013, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200438, China.
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24
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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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25
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Islam K, Rawoof A, Kumar A, Momo J, Ahmed I, Dubey M, Ramchiary N. Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37289974 DOI: 10.1021/acs.jafc.3c01901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Capsicum (chili pepper) is a widely popular and highly consumed fruit crop with beneficial secondary metabolites such as capsaicinoids, carotenoids, flavonoids, and polyphenols, among others. Interestingly, the secondary metabolite profile is a dynamic function of biosynthetic enzymes, regulatory transcription factors, developmental stage, abiotic and biotic environment, and extraction methods. We propose active manipulable genetic, environmental, and extraction controls for the modulation of quality and quantity of desired secondary metabolites in Capsicum species. Specific biosynthetic genes such as Pun (AT3) and AMT in the capsaicinoids pathway and PSY, LCY, and CCS in the carotenoid pathway can be genetically engineered for enhanced production of capsaicinoids and carotenoids, respectively. Generally, secondary metabolites increase with the ripening of the fruit; however, transcriptional regulators such as MYB, bHLH, and ERF control the extent of accumulation in specific tissues. The precise tuning of biotic and abiotic factors such as light, temperature, and chemical elicitors can maximize the accumulation and retention of secondary metabolites in pre- and postharvest settings. Finally, optimized extraction methods such as ultrasonication and supercritical fluid method can lead to a higher yield of secondary metabolites. Together, the integrated understanding of the genetic regulation of biosynthesis, elicitation treatments, and optimization of extraction methods can maximize the industrial production of secondary metabolites in Capsicum.
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Affiliation(s)
- Khushbu Islam
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Abdul Rawoof
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ajay Kumar
- Department of Plant Sciences, School of Biological Sciences, Central University of Kerala, Kasaragod 671316, Kerala, India
| | - John Momo
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ilyas Ahmed
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Meenakshi Dubey
- Department of Biotechnology, Delhi Technological University, New Delhi 110042, India
| | - Nirala Ramchiary
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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26
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Zhang Z, Zhao H, Deng Y, Luo W, Luo X, Wang C, Quan C, Guo Z, Wang Y. Bacterial diversity and its correlation with sensory quality of two types of zha-chili from Shennongjia region, China. Food Res Int 2023; 168:112789. [PMID: 37120235 DOI: 10.1016/j.foodres.2023.112789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/26/2023] [Accepted: 04/02/2023] [Indexed: 05/01/2023]
Abstract
In the Shennongjia region of China, two types of zha-chili with distinct flavors exist: the first type (P zha-chili) uses a significant amount of chili pepper but no potato, while the other (PP zha-chili) contains a smaller amount of chili pepper but a proportion of potato. In order to investigate the bacterial diversity and sensory properties of these two types of zha-chili, this study employed a combination of amplicon sequencing, culture-based methods, and sensory technology. The results of the study showed statistically significant differences (P < 0.05) in bacterial diversity and communities between the two types of zha-chili. In particular, four dominant lactic acid bacteria (LAB) genera - Lactiplantibacillus, Lactococcus, Leuconostoc, and Weissella - were significantly enriched in PP zha-chili. The findings suggest that the proportions of chili pepper and potato can influence the bacterial diversity and content of LAB, with a higher proportion of chili pepper potentially inhibiting the growth of harmful species within the Enterobacteriaceae family. The study also used culture-based methods to identify the most dominant bacteria in the zha-chili samples as Lactiplantibacillus plantarum group, Companilactobacillus alimentarius, and Lacticaseibacillus paracasei. Correlation analysis indicated that LAB likely plays a significant role in shaping the aroma profile of zha-chili, with Levilactobacillus, Leuconostoc, Lactiplantibacillus, and Lactococcus showing correlation with E-nose sensory indices. However, these LAB were not significantly correlated with the taste properties of zha-chili. The study provides new insights into the influence of chili pepper and potato on the microbial diversity and flavor properties of zha-chili, and also presents potential LAB isolates for future research on zha-chili.
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Affiliation(s)
- Zhendong Zhang
- School of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun, Guizhou Province, China.
| | - Huijun Zhao
- Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China; Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China.
| | - Yumei Deng
- School of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun, Guizhou Province, China.
| | - Wen Luo
- School of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun, Guizhou Province, China.
| | - Xiyun Luo
- School of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun, Guizhou Province, China.
| | - Chan Wang
- School of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun, Guizhou Province, China.
| | - Changbin Quan
- School of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun, Guizhou Province, China.
| | - Zhuang Guo
- Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China; Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China.
| | - Yurong Wang
- Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China; Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China.
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27
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Chen C, Li J, Cheng G, Liu Y, Yi Y, Chen D, Wang X, Cao J. Flavor changes and microbial evolution in fermentation liquid of sour bamboo shoots. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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28
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Li Y, Luo X, Long F, Wu Y, Zhong K, Bu Q, Huang Y, Gao H. Quality improvement of fermented chili pepper by inoculation of Pediococcus ethanolidurans M1117: Insight into relevance of bacterial community succession and metabolic profile. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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29
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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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Study on the quality formation mechanism of Zao chili with enhanced fermentation by Lactipllantbacillus plantarum 5-1. Food Chem X 2023; 17:100626. [PMID: 36974175 PMCID: PMC10039268 DOI: 10.1016/j.fochx.2023.100626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/19/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
Zao Chili (ZC) is a traditional fermented pepper, which plays an important role in Chinese cooking. The aim of this study was to elucidate the effect of Lactipllantbacillus plantarum 5-1 on the physicochemical properties, metabolite and microbiota profiling of ZC. The physicochemical factors changed regularly with the fermentation time. In the microbial communities, Lactobacillus, Weissella, Enterobacter, Gibberella, Fusarium, Zygosaccharomyces and Pichia were the dominant genera. 7 kinds of organic acids were detected in the whole fermentation process of ZC, but only 5 kinds changed significantly. Based on the OPLS-DA model with VIP > 1 and ANOVA with P < 0.05, 33 volatile flavor compounds with significant differences were screened out of 89. According to the redundancy analysis (RDA), fungi mainly contributed to soluble solids, while bacteria mainly contributed to pH. Lactobacillus, Weissella, Enterbacter and Zygosaccharomyces may be the potential flavor contributing microorganisms in the fermentation process of ZC by the Spearman correlation coefficient. A total of 11 main metabolic pathways were obtained by KEGG enrichment analysis of 89 volatile flavor compounds and 7 organic acids. Therefore, this study further enhanced our understanding of the flavor quality formation mechanism of Lactipllantbacillus plantarum in ZC, and providing a theoretical basis for improving the flavor quality of ZC.
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Mei Y, Ge L, Lai H, Wang Y, Zeng X, Huang Y, Yang M, Zhu Y, Li H, Li J, Guo C, Hu T, Zhao N. Decoding the evolution of aromatic volatile compounds and key odorants in Suancai (a Chinese traditional fermented vegetable) during fermentation using stir bar sorptive extraction–gas chromatography–olfactometry–mass spectrometry. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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32
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Zheng Z, Zhou Q, Chen Q, Gao J, Wu Y, Yang F, Zhong K, Gao H. Improvement of physicochemical characteristics, flavor profiles and functional properties in Chinese radishes via spontaneous fermentation after drying. J Food Sci 2023; 88:1292-1307. [PMID: 36815393 DOI: 10.1111/1750-3841.16486] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/13/2022] [Accepted: 01/18/2023] [Indexed: 02/24/2023]
Abstract
Spontaneously dried-fermented radishes have been consumed in China for hundreds of years and are usually fermented for a long time to acquire high quality. In this study, the spontaneously dried-fermented radishes with short-term manufacturing periods were made from five different varieties of radishes that grew in the same environment. In addition, the physicochemical characteristics (i.e., moisture content, soluble solid, and pH value), flavor profiles (i.e., free amino acids, organic acids, and volatile compounds), and functional properties (i.e., total phenolics content, total flavonoids content, sulforaphane content, and γ-aminobutyric acid [GABA] content) of these five raw radishes and spontaneously dried-fermented radishes were analyzed and compared. In detail, the content of volatile and nonvolatile compounds increased, especially in oxalic acid, succinic acid, and umami free amino acids. Furthermore, functional components, such as sulforaphane and GABA, were also enriched via spontaneous fermentation after drying. In addition, the results of principal component analysis, hierarchical clustering analysis, and redundancy analysis showed that there were significant discrepancies appeared when raw radishes were processed via spontaneous fermentation or not. These results suggested that the process of spontaneous fermentation after drying may contribute to improving the quality of fresh radishes. Notably, radishes with red skin and flesh were regarded as exceptional varieties for processing, because of the preferable flavor profiles and affluent functional substances via spontaneous fermentation after drying. Therefore, these findings could deliver a systematical insight into developing processed radishes with high quality. PRACTICAL APPLICATION: The spontaneously dried-fermented radishes were manufactured through the process of spontaneous fermentation after drying, which acquired tasty and healthy characteristics by accumulating the volatile and nonvolatile compounds as well as the functional components, like total phenolics, total flavonoids, sulforaphane, and γ-aminobutyric acid. Importantly, because of the excellent processing properties, the radishes with red skin and flesh could be more appropriate to produce spontaneously dried-fermented radishes. Our findings may provide a practical strategy for developing vegetable relishes with superb flavor profiles and good functional properties in pickled vegetables.
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Affiliation(s)
- Zimeng Zheng
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Qian Zhou
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Qian Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Jia Gao
- Institute of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Yanping Wu
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Feng Yang
- Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, Sichuan, China.,Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
| | - Kai Zhong
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Hong Gao
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
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Dong Y, Wang Y, Zhao H, Zhang Y, Zhang H, Sun Y, Guo Z. Levilactobacillus yiduensis sp. nov., Isolated from Zha-chili in Yidu County, Hubei Province, China. Curr Microbiol 2023; 80:112. [PMID: 36809591 DOI: 10.1007/s00284-023-03211-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/01/2023] [Indexed: 02/23/2023]
Abstract
The zha-chili isolate HBUAS62285T is a facultative anaerobic strain. This bacterium was gram-positive, but it could not generate catalase, was not motile, did not form spores, had no flagella, and produced gamma-aminobutyric acid (GABA). Comparing of HBUAS62285T with its related type strains Levilactobacillus suantsaiihabitans BCRC 81129T, Levilactobacillus angrenensis M1530-1T, Levilactobacillus cerevisiae DSM 100836T, Levilactobacillus wangkuiensis 6-5(1)T, Levilactobacillus lanxiensis 13B17T, and Levilactobacillus mulengensis 112-3T showed that the similarity of 16S rRNA gene sequence was less than 99.13%. Strain HBUAS62285T has a G+C content of 50.57 mol%, an ANI value of less than 86.61%, an AAI value of less than 92.9%, and a dDDH value of less than 32.9% when compared to the aforementioned closely related strains. In the end, the most major fatty acids in cells were determined to be C16:0, C18:1 ω9c, C19:1 cyclo ω9,10c, and summed feature 10. Overall, the results of the phenotypic, genomic, chemotaxonomic, and phylogenetic studies indicate that strains HBUAS62285T and CD0817 constitute a new species within the genus Levilactobacillus, and the name Levilactobacillus yiduensis sp. nov. is proposed. The type strain is HBUAS62285T (= JCM 35804T = GDMCC 1.3507T).
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Affiliation(s)
- Yun Dong
- Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China.,Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China.,College of Food and Wine, Ningxia University, Yinchuan, Ningxia Hui Autonomous Region, China
| | - Yurong Wang
- Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China. .,Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China.
| | - Huijun Zhao
- Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China.,Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China
| | - Yan Zhang
- Hubei Key Laboratory of Yeast Function, Yichang, Hubei, People's Republic of China
| | - Haibo Zhang
- Hubei Key Laboratory of Yeast Function, Yichang, Hubei, People's Republic of China
| | - Yafang Sun
- Hubei Key Laboratory of Yeast Function, Yichang, Hubei, People's Republic of China
| | - Zhuang Guo
- Hubei Provincial Engineering and Technology Research Center for Food Ingredients, Hubei University of Arts and Science, Xiangyang, Hubei, China. .,Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Hubei University of Arts and Science, Xiangyang, Hubei, China.
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Identification and validation of core microbes associated with key aroma formation in fermented pepper paste (Capsicum annuumL.). Food Res Int 2023; 163:112194. [PMID: 36596132 DOI: 10.1016/j.foodres.2022.112194] [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: 09/08/2022] [Revised: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
Fermented peppers are usually obtained by the spontaneous fermentation of microorganisms attached to fresh peppers, and the variable microbial composition would lead to inconsistencies in flavor between batches. To demonstrate the roles of microorganisms in flavor formation, the core microbes closely associated with the key aroma compounds of fermented pepper paste were screened and validated in this study. Lactobacillus was the dominant bacterial genus in fermented pepper paste, whereas the main fungal genera were Alternaria and Kazachstania. Nine strains of the genera Lactobacillus, Weissella, Bacillus, Zygosaccharomyces, Kazachstania, Debaryomyces, and Pichia were isolated from fermented pepper paste. Eleven key aroma compounds were identified using gas chromatography combined with olfactometry and relative odor activity values. Correlation analysis showed that Zygosaccharomyces and Kazachstania were positively correlated with the majority of the key aroma compounds, whereas Lactobacillus was negatively correlated with them. Thus, Zygosaccharomyces and Kazachstania were identified as core genera associated with the key odorants. Finally, Zygosaccharomyces bisporus, Kazachstania humilis, and Lactiplantibacillus plantarum were used as starter cultures for fermented peppers, confirming that Z. bisporus and K. humilis were more beneficial for the key aroma compounds (e.g., acetate, linalool, and phenyl ethanol) rather than L. plantarum. This study contributed to understanding the flavor formation mechanism and provided references for the quality control of food fermentation.
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Zhang S, Shang Z, Liu Z, Hu X, Yi J. Flavor production in fermented chayote inoculated with lactic acid bacteria strains: Genomics and metabolomics based analysis. Food Res Int 2023; 163:112224. [PMID: 36596153 DOI: 10.1016/j.foodres.2022.112224] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 11/18/2022] [Accepted: 11/20/2022] [Indexed: 11/27/2022]
Abstract
In this study, genomics and metabolomics were combined to reveal possible bio-synthetic pathways of core flavor compounds in pickled chayote via lactic acid bacteria (LAB) fermentation. The Lactiplantibacillus plantarum, Levilactobacillus brevis, and Lacticaseibacillus paracasei were selected as core LAB strains with better flavor-producing ability for chayote fermentation. The genomic results showed L. plantarum contained the largest number of metabolism annotated genes, while L. brevis had the fewest. Besides, the largest number of volatile compounds was detected in chayote fermented by L. plantarum, followed by L. brevis and L. paracasei. Some unique odor-active compounds (aldehydes, esters, and alcohols) and taste-active compounds (amino acids and dipeptides) were produced by different LAB strains. Accordingly, phenylalanine metabolic pathway (M00360), amino acid metabolic decomposition pathway (the Ehrlich pathway) and the anabolic pathway (the Harris pathway), and fatty acid biosynthesis pathway (M00061) were the main biosynthesis pathway involved in the flavor formation via LAB fermentation.
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Affiliation(s)
- Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming, Yunnan Province 650500, China.
| | - Zhixun Shang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming, Yunnan Province 650500, China.
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming, Yunnan Province 650500, China.
| | - Xiaosong Hu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming, Yunnan Province 650500, China; College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China; Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming, Yunnan Province 650500, China.
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36
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Zhang S, Xiao Y, Jiang Y, Wang T, Cai S, Hu X, Yi J. Effects of Brines and Containers on Flavor Production of Chinese Pickled Chili Pepper ( Capsicum frutescens L.) during Natural Fermentation. Foods 2022; 12:foods12010101. [PMID: 36613316 PMCID: PMC9818826 DOI: 10.3390/foods12010101] [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: 11/29/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/28/2022] Open
Abstract
The effects of (fresh/aged) brine and (pool/jar) containers on the flavor characteristics of pickled chili peppers were investigated based on a multivariate analysis integrated with kinetics modeling. The results showed that the effect of brine on organic acid, sugar, and aroma was more dominant than that of containers, while free amino acids production was more affected by containers than brines. Chili pepper fermented using aged brine exhibited higher acidity (3.71−3.92) and sugar (7.92−8.51 mg/g) than that using fresh brine (respective 3.79−3.96; 6.50−9.25 mg/g). Besides, chili peppers fermented using pool containers showed higher free amino acids content (424.74−478.82 mg/100 g) than using a jar (128.77−242.90 mg/100 g), particularly with aged brine. As for aroma, the number of volatiles in aged brine was higher (88−96) than that in fresh brine (76−80). The contents of the esters, alcohols, and ketones were significantly higher in the aged brine samples than those in fresh brine (p < 0.05), while terpenes in chili pepper fermented using the pool were higher than those using the jar. In general, jar fermentation with aged brine contributed more flavor to pickled chili peppers than other procedures.
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Affiliation(s)
- Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
| | - Yue Xiao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
| | - Yongli Jiang
- 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
| | - Tao Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
| | - Shengbao Cai
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
| | - Xiaosong Hu
- 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
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
- Correspondence: ; Tel.: +86-15810687441
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37
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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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38
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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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39
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Liao H, Luo Y, Huang X, Xia X. Dynamics of quality attributes, flavor compounds, and microbial communities during multi-driven-levels chili fermentation: Interactions between the metabolome and microbiome. Food Chem 2022; 405:134936. [DOI: 10.1016/j.foodchem.2022.134936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/15/2022]
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40
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Unraveling the microbial community and succession during zha-chili fermentation and their relationships with flavor formation. Food Res Int 2022; 157:111239. [DOI: 10.1016/j.foodres.2022.111239] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 01/04/2023]
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41
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Shang Z, Li M, Zhang W, Cai S, Hu X, Yi J. Analysis of phenolic compounds in pickled chayote and their effects on antioxidant activities and cell protection. Food Res Int 2022; 157:111325. [DOI: 10.1016/j.foodres.2022.111325] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 11/04/2022]
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Sun Y, Zhang S, Li H, Zhu J, Liu Z, Hu X, Yi J. Assessments of Probiotic Potentials of Lactiplantibacillus plantarum Strains Isolated From Chinese Traditional Fermented Food: Phenotypic and Genomic Analysis. Front Microbiol 2022; 13:895132. [PMID: 35615501 PMCID: PMC9125032 DOI: 10.3389/fmicb.2022.895132] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 03/25/2022] [Indexed: 12/02/2022] Open
Abstract
The lack of rapid and effective approaches to determine the health benefits of strains is one of the main challenges affecting the selection of probiotics from large numbers of candidates. In this study, the probiotic potential of 44 Lactiplantibacillus plantarum strains isolated from different Chinese traditional fermented foods was evaluated, including acid and bile salt resistance, adhesion ability, survival in simulated human gastrointestinal transit, antioxidant activity, bile salt hydrolase (BSH) activity, and antibacterial activity. All tested L. plantarum strains showed high antioxidant capacity, BSH activity, and antibacterial activity. Among the strains, B652, C232, D444, and E932 were identified as the best comprehensive performed strains, which were selected for whole-genome sequencing, in order to provide clear information and identify key genes responsible for functional characteristics in vitro. It demonstrated that the antioxidant activity, adhesion activity, and ability to survive in the simulated gastric environment were found to be closely correlated with antioxidant enzyme encoding genes, cell-surface protein-encoding genes, and stress response genes, respectively. The numbers of functional genes present in strains might decide their performance in probiotic profile evaluation. The outcome of the study could support the development of a novel approach for the screening and identification of probiotics.
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Affiliation(s)
- Yuwei Sun
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | - Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | - Hong Li
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | - Jiang Zhu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | - Xiaosong Hu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
- *Correspondence: Junjie Yi,
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Lin LJ, Zeng J, Tian QM, Ding XQ, Zhang XY, Gao XY. Effect of the bacterial community on the volatile flavour profile of a Chinese fermented condiment – Red sour soup – During fermentation. Food Res Int 2022; 155:111059. [DOI: 10.1016/j.foodres.2022.111059] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 12/16/2022]
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44
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Bao X, Zhang S, Zhang X, Jiang Y, Liu Z, Hu X, Yi J. Effects of pasteurization technologies and storage conditions on the flavor changes in acidified chili pepper. Curr Res Food Sci 2022; 5:1295-1304. [PMID: 36065197 PMCID: PMC9440270 DOI: 10.1016/j.crfs.2022.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Xi Bao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan province 650500, China
| | - Shiyao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan province 650500, China
| | - Xueting Zhang
- Wenshan Academy of Agricultural Sciences, Wenshan, Yunnan province 663000, China
| | - Yongli Jiang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan province 650500, China
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan province 650500, China
- Corresponding author.
| | - Xiaosong Hu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan province 650500, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Junjie Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan province 650500, China
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