1
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Yang L, Li H, Wu H, Liu S, He Z. Effect of staphylococci fermentation and their synergistic Lactobacillus on the physicochemical characteristics and nonvolatile metabolites of Chinese bacon. Meat Sci 2024; 212:109461. [PMID: 38394856 DOI: 10.1016/j.meatsci.2024.109461] [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: 01/01/2024] [Revised: 02/01/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
The impacts of Staphylococcus cohnii, S. saprophyticus and their synergistic Lactobacillus plantarum on the quality and flavor of Chinese bacon were investigated by monitoring the physicochemical characteristics and characterizing metabolites with non-targeted metabolomics. Results showed that S. cohnii could increase the tenderness and decrease the oxidation of muscle, while S. saprophyticus stabilized the springiness and increased the proteolysis. The metabolites produced by the co-fermentation of S. cohnii and S. saprophyticus showed a higher hierarchy, then exhibited the highest hierarchy in synergy with L. plantarum. The promising flavor may be related to the arginine biosynthesis, nicotinic acid and nicotinamide metabolism, and pyrimidine metabolism pathways. Staphylococcus contributed to flavor by promoting the accumulation of di- and tripeptides and activating the amino acid metabolic pathway through arginine metabolism. These findings provide thoughts for understanding the fermentation mechanism of Staphylococcus and the targeted modulation of the flavor of Chinese bacon.
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Affiliation(s)
- Li Yang
- College of Food Science, Southwest University, No .2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Hongjun Li
- College of Food Science, Southwest University, No .2 Tiansheng Road, Beibei District, Chongqing 400715, China; Chongqing Engineering Research Center of Regional Food, No. 2 Tiansheng Road, Beibei District, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, No. 2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Han Wu
- College of Food Science, Southwest University, No .2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Shuyun Liu
- College of Food Science, Southwest University, No .2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Zhifei He
- College of Food Science, Southwest University, No .2 Tiansheng Road, Beibei District, Chongqing 400715, China; Chongqing Engineering Research Center of Regional Food, No. 2 Tiansheng Road, Beibei District, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, No. 2 Tiansheng Road, Beibei District, Chongqing 400715, China.
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2
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Zhou C, Wu X, Pan D, Xia Q, Sun Y, Geng F, Cao J. TMT-labeled quantitative proteomic reveals the mechanism of proteolysis and taste improvement of dry-cured bacon with Staphylococcus co-inoculation. Food Chem 2024; 436:137711. [PMID: 37839122 DOI: 10.1016/j.foodchem.2023.137711] [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: 05/17/2023] [Revised: 10/04/2023] [Accepted: 10/08/2023] [Indexed: 10/17/2023]
Abstract
To understand the mechanism of co-inoculation of Staphylococcus xylosus and Staphylococcus vitulinus (SX & SV) on structural protein degradation and taste enhancement of dry-cured bacon, protease activities, protein degradation, surface morphology of proteins and taste parameters of dry-cured bacon with Staphylococcus inoculation were investigated. The dry-cured bacon with co-inoculation of Staphylococcus xylosus and Staphylococcus vitulinus showed the best taste attributes. High residual activities in cathepsin B + L (more than 1.6-fold) and alanyl aminopeptidase (more than 1.4-fold) accelerated structural protein degradation in SX & SV. 32 down-regulated proteins were identified in SX & SV by TMT-labeled quantitative proteomic compared with control group; myosin and actin showed the most intense response to the accumulation of sweet and umami amino acids, and atomic force microscopy confirmed structural proteins breakdown by morphological changes. The accumulation of glutamic acid, alanine and lysine was mainly responsible for taste improvement of dry-cured bacon with Staphylococcus co-inoculation.
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Affiliation(s)
- Changyu Zhou
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China.
| | - Xueyi Wu
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Daodong Pan
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Qiang Xia
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Yangying Sun
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Fang Geng
- Meat Processing Key Laboratory of Sichuan Province, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Jinxuan Cao
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China.
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3
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Zhang W, Xiao Z, Gu Z, Deng X, Liu J, Luo X, Song C, Jiang X. Fermentation-promoting effect of three salt-tolerant Staphylococcus and their co-fermentation flavor characteristics with Zygosaccharomyces rouxii in soy sauce brewing. Food Chem 2024; 432:137245. [PMID: 37657348 DOI: 10.1016/j.foodchem.2023.137245] [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: 06/07/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 09/03/2023]
Abstract
Staphylococcus is the dominant genus in the fermentation process of soy sauce, but its effect on the flavor of soy sauce has not been clearly established. In order to investigate the role of this genus in soy sauce fermentation, individual fermentation with Staphylococcus spp. screened from the moromi and their co-fermentation with an ester-producing yeast of Zygosaccharomyces rouxii were designed. Through the analysis of physicochemical properties, organic acid composition, volatile flavor compounds (VFCs) and sensory characteristics during fermentation, Staphylococcus was confirmed as a contributor to the acidity, ester aroma and alcohol aroma of soy sauce. In their co-fermentation with yeast, the ester aroma of soy sauce was further enhanced. Moreover, pathway enrichment analysis and network construction of key VFCs also revealed potential metabolic networks for formation of characteristic flavor compounds in co-fermentation. This work will help optimize the fermentation functional microbiota to obtain better soy sauce flavor.
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Affiliation(s)
- Wei Zhang
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Zhangchi Xiao
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Zimeng Gu
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Xiang Deng
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Jun Liu
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre for Condiment Fermentation, Changsha 410600, China
| | - Xiaoming Luo
- School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre for Condiment Fermentation, Changsha 410600, China
| | - Chunxiang Song
- Hunan Provincial Engineering Technology Research Centre for Condiment Fermentation, Changsha 410600, China
| | - Xuewei Jiang
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, China; Hunan Provincial Engineering Technology Research Centre for Condiment Fermentation, Changsha 410600, China.
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4
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Li Z, Li D, Pan D, Xia Q, Sun Y, Du L, He J, Zhou C, Geng F, Cao J. Insights into the mechanism of extracellular proteases from Penicillium on myofibrillar protein hydrolysis and volatile compound evolutions. Food Res Int 2024; 175:113774. [PMID: 38129063 DOI: 10.1016/j.foodres.2023.113774] [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: 08/18/2023] [Revised: 11/06/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
To investigate the mechanism of Penicillium proteases on the hydrolysis of myofibrillar protein (MP) and volatile compound evolutions, enzymatic characteristics of Penicillium proteases, hydrolysis capacities for MP, interactions between Penicillium proteases and MP, and profile changes of volatile compounds were investigated. P. aethiopicum (PA) and P. chrysogenum (PC) proteases showed the largest hydrolysis activities at pH 9.0 and 7.0, and were identified as alkaline serine protease and serine protease by LC-MS/MS, respectively. The proteases of PA and PC significantly degraded myosin and actin, and PA protease showed higher hydrolysis capacity for myosin than that of PC protease, which was confirmed by higher proteolysis index (56.06 %) and lower roughness (3.99 nm) of MP after PA treatment. Molecular docking revealed that hydrogen bond and hydrophobic interaction were the major interaction forces of Penicillium proteases with myosin and actin, and PA protease showed more binding sites with myosin compared with PC protease. The total content of free amino acids increased to 6.02-fold for PA treatment and to 5.51-fold for PC treatment after 4 h hydrolysis of MP, respectively. GC-MS showed that aromatic aldehydes and pyrazines in PA showed the largest increase compared with the control and PC during the hydrolysis of MP. Correlation analysis demonstrated that Phe, Leu and Ile were positively related with the accumulation of benzaldehyde, benzeneacetaldehyde, 2,4-dimethyl benzaldehyde and 2,5-dimethyl pyrazine.
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Affiliation(s)
- Zimu Li
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Danni Li
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Daodong Pan
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Qiang Xia
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Yangying Sun
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Lihui Du
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Jun He
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Changyu Zhou
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China.
| | - Fang Geng
- Meat Processing Key Laboratory of Sichuan Province, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Jinxuan Cao
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food Science and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China.
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5
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Yang L, Li H, Wu H, Liu S, Su C, He Z. Isolation, characterization, and fermentation potential of coagulase-negative Staphylococci with taste-enhancing properties from Chinese traditional bacon. Food Chem X 2023; 20:100912. [PMID: 38144787 PMCID: PMC10740041 DOI: 10.1016/j.fochx.2023.100912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 12/26/2023] Open
Abstract
No proprietary starter cultures for crafting Chinese bacon. This study aimed to isolate Coagulase-negative Staphylococci (CNS) from Chinese bacon, identify their species, and evaluate their ability to produce biogenic amines (BAs), peptides, free amino acids (FAAs), and degrade proteins. Twenty-one isolates were deficient in hemolysis, DNase, and coagulase activities, and exhibited low amino acid decarboxylase activity. Further characterization revealed 11 CNS species showing protease, lipase, or nitrate reductase activities. Specifically, S. cohnii WX-M8 was able to degrade both sarcoplasmic and myofibrillar proteins, while S. saprophyticus MY-A10 was found to only degrade myofibrillar proteins. Both were able to reduce the BAs and increase the content of peptides around day 3. The meat fermented by these two CNS contained FAAs that are more conducive to taste formation, such as Glu and Asp, and reduced the content of bitter FAAs. These findings will provide insights into the use of CNS for Chinese bacon.
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Affiliation(s)
- Li Yang
- College of Food Science, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Hongjun Li
- College of Food Science, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
- Chongqing Engineering Research Center of Regional Food, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
- Chongqing Key Laboratory of Special Food Co-Built by Sichuan and Chongqing, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Han Wu
- College of Food Science, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Shuyun Liu
- College of Food Science, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Chang Su
- College of Food Science, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
| | - Zhifei He
- College of Food Science, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
- Chongqing Engineering Research Center of Regional Food, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
- Chongqing Key Laboratory of Special Food Co-Built by Sichuan and Chongqing, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China
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6
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Wang H, Sui Y, Liu J, Kong B, Li H, Qin L, Chen Q. Analysis and comparison of the quality and flavour of traditional and conventional dry sausages collected from northeast China. Food Chem X 2023; 20:100979. [PMID: 38022737 PMCID: PMC10661686 DOI: 10.1016/j.fochx.2023.100979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
In this study, the physicochemical properties and flavour profile of traditional dry sausages (T-SH, T-DXAL, T-HG, T-MDJ, T-HRB) collected from various wet markets were compared with those of conventional dry sausages (C-QL, C-ND, C-YSD, C-YC, C-HRL) collected from various food companies in northeast China. Traditional dry sausages were characterised by a low moisture content, a low water activity, and a high shear force after a long fermentation time compared with conventional dry sausages. Electronic nose and electronic tongue signals combined with chemometrics methods were applied for a comprehensive qualitative analysis of the odour and taste of dry sausages. A total of 61 volatile compounds were identified using gas chromatography-mass spectrometry, and the multivariate chemometrics analysis confirmed the difference in volatile compounds between traditional and conventional samples. Moreover, the sensory evaluation revealed that conventional dry sausages lacked the characteristic fermented flavour of traditional dry sausages.
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Affiliation(s)
- Huiping Wang
- Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yumeng Sui
- Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Jiaqi Liu
- Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baohua Kong
- Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Huiyao Li
- Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Ligang Qin
- Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Chen
- Northeast Agricultural University, Harbin, Heilongjiang 150030, China
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7
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Bai G, Pan Y, Zhang Y, Li Y, Wang J, Wang Y, Teng W, Jin G, Geng F, Cao J. Research advances of molecular docking and molecular dynamic simulation in recognizing interaction between muscle proteins and exogenous additives. Food Chem 2023; 429:136836. [PMID: 37453331 DOI: 10.1016/j.foodchem.2023.136836] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/21/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
During storage and processing, muscle proteins, e.g. myosin and myoglobin, will inevitably undergo degeneration, which is thus accompanied by quality deterioration of muscle foods. Some exogenous additives have been widely used to interact with muscle proteins to stabilize the quality of muscle foods. Molecular docking and molecular dynamics simulation (MDS) are regarded as promising tools for recognizing dynamic molecular information at atomic level. Molecular docking and MDS can explore chemical bonds, specific binding sites, spatial structure changes, and binding energy between additives and muscle proteins. Development and workflow of molecular docking and MDS are systematically summarized in this review. Roles of molecular simulations are, for the first time, comprehensively discussed in recognizing the interaction details between muscle proteins and exogenous additives aimed for stabilizing color, texture, flavor, and other properties of muscle foods. Finally, research directions of molecular docking and MDS for improving the qualities of muscle foods are discussed.
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Affiliation(s)
- Genpeng Bai
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Yiling Pan
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Yuemei Zhang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China.
| | - Yang Li
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Jinpeng Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Ying Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Wendi Teng
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Guofeng Jin
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Fang Geng
- Meat Processing Key Laboratory of Sichuan Province, School of Food and Biological Engineering, Chengdu University, 610106 Chengdu, China
| | - Jinxuan Cao
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China.
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8
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Zhang D, Yang P, Liu K, Wu L, Li G, Zhang H, Ma X, Rong L, Li R. The effective of bacterial community dynamics driven by different starter cultures on the flavor development of Chinese fermented sausages. Food Chem X 2023; 19:100838. [PMID: 37780305 PMCID: PMC10534179 DOI: 10.1016/j.fochx.2023.100838] [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: 04/17/2023] [Revised: 08/06/2023] [Accepted: 08/11/2023] [Indexed: 10/03/2023] Open
Abstract
This study aimed to understand the community successions driven by different starters and their effects on the flavor development of Chinese fermented sausages. The results showed that the bacterial genus (67.6%) and pH (32.4%) were the key factors influencing the volatile profile. Inoculated the starters composed of Pediococcus and staphylococci maintained the stable community succession patterns dominated by staphylococci (samples T and S). Although the highly acidic environment (pH < 5.2) caused the community to exhibit a fluctuation in succession pattern, the inoculation of Latilactobacillus paracasei (sample Y) maintained microbial diversity and was conducive to the accumulation of aldehydes and esters. In sample P, inoculated the starter with Latilactobacillus and Staphylococcus also maintained microbial diversity, the moderately acidic environment (pH > 5.4) resulted in a stable succession pattern of the microbial community, and it was not conducive to the accumulation of aldehydes, alcohols and esters.
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Affiliation(s)
- Di Zhang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Peng Yang
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Kaihao Liu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Liu Wu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Guoliang Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
| | - Huan Zhang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
| | - Xiaozhong Ma
- Jinzi Ham Co., Ltd., No. 1000, Jinfan Street, Industrial Park, Jinhua, Zhejiang 321016, China
| | - Liangyan Rong
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
| | - Ruren Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
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9
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Song P, Zhang X, Wang S, Xu W, Wang F, Fu R, Wei F. Microbial proteases and their applications. Front Microbiol 2023; 14:1236368. [PMID: 37779686 PMCID: PMC10537240 DOI: 10.3389/fmicb.2023.1236368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023] Open
Abstract
Proteases (proteinases or peptidases) are a class of hydrolases that cleave peptide chains in proteins. Endopeptidases are a type of protease that hydrolyze the internal peptide bonds of proteins, forming shorter peptides; exopeptidases hydrolyze the terminal peptide bonds from the C-terminal or N-terminal, forming free amino acids. Microbial proteases are a popular instrument in many industrial applications. In this review, the classification, detection, identification, and sources of microbial proteases are systematically introduced, as well as their applications in food, detergents, waste treatment, and biotechnology processes in the industry fields. In addition, recent studies on techniques used to express heterologous microbial proteases are summarized to describe the process of studying proteases. Finally, future developmental trends for microbial proteases are discussed.
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Affiliation(s)
- Peng Song
- College of Life Sciences, Liaocheng University, Liaocheng, China
- Shandong Aobo Biotech Co. Ltd., Liaocheng, China
- Jiangxi Zymerck Biotech Co. Ltd., Nanchang, China
| | - Xue Zhang
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Shuhua Wang
- Shandong Aobo Biotech Co. Ltd., Liaocheng, China
| | - Wei Xu
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Fei Wang
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Rongzhao Fu
- Jiangxi Zymerck Biotech Co. Ltd., Nanchang, China
| | - Feng Wei
- College of Life Sciences, Liaocheng University, Liaocheng, China
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10
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Liu L, Zhou Y, Liu Y, Wan J, Zhu Q, Bi S, Zhou M, Wang Y, Li X, Liu Y, Lan L. Structural and functional changes on polyhydroxy alcohol-mediated curing pork myofibrillar protein: Experimental and molecular simulation investigations. Food Res Int 2023; 170:113012. [PMID: 37316079 DOI: 10.1016/j.foodres.2023.113012] [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: 03/05/2023] [Revised: 04/17/2023] [Accepted: 05/19/2023] [Indexed: 06/16/2023]
Abstract
This study aimed to investigate the structural and functional changes in polyhydroxy alcohol-mediated curing on pork myofibrillar proteins (MP). The results obtained from total sulfhydryl groups, surface hydrophobicity, fluorescence and Raman spectroscopies, and solubility demonstrated that the polyhydroxy alcohols (especially xylitol) significantly modified the MP tertiary structure, making this structure more hydrophobic and tighter. However, no significant differences were detected in the secondary structure. Furthermore, the thermodynamic analysis revealed that polyhydroxy alcohols could develop an amphiphilic interfacial layer on the MP surface, significantly increasing the denaturation temperature and enthalpy of denaturation (P < 0.05). On the other hand, the molecular docking and dynamics simulations showed that polyhydroxy alcohols interact with actin mainly through hydrogen bonds and van der Waals forces. Therefore, this could help reduce the effect of high-content salt ions on MP denaturation and improve the cured meat quality.
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Affiliation(s)
- Linggao Liu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Ying Zhou
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Yuanyuan Liu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Jing Wan
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China; Key Laboratory Mountain Plateau Animals Genetics and Breeding, Ministry of Education, Guiyang 550025, China
| | - Qiujin Zhu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China; Key Laboratory Mountain Plateau Animals Genetics and Breeding, Ministry of Education, Guiyang 550025, China.
| | - Shenghui Bi
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Mixin Zhou
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Yang Wang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Xiangrui Li
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Yehua Liu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
| | - Lisha Lan
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; Key Laboratory of Agricultural and Animal Products Store and Processing of Guizhou Province, Guiyang 550025, China
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11
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Sun F, Wang H, Liu Q, Xia X, Chen Q, Kong B. Proteolysis and quality characteristics of Harbin dry sausages caused by the addition of Staphylococcus xylosus protease. Food Chem 2023; 404:134692. [DOI: 10.1016/j.foodchem.2022.134692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
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12
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Quality relationship between smoked and air-dried bacon of Sichuan-Chongqing in China: Free amino acids, volatile compounds, and microbial diversity. Food Res Int 2023; 164:112274. [PMID: 36737892 DOI: 10.1016/j.foodres.2022.112274] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/22/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022]
Abstract
The quality formation of Chinese bacon is closely related to flavor compounds and microbial composition; however, the contribution of microbial to flavor has not been fully explored. Previous studies have focused on the differences in microorganisms and flavor substances in smoked bacon. Thus, this study aims to investigate the relationship among microorganisms, free amino acids (FAAs), and volatile compounds (VOCs) in bacon produced by different drying processes. We analyzed the microbial composition by sequencing the V3-V4 region of the 16S rDNA gene and the fungal ITS2 region and flavor substances using an amino acid analyzer and chromatography-mass spectrometry (GC-MS). Results of taste activity values (TVA) and partial least squares discriminant analysis (PLS-DA) revealed that the flavor components of the two types of bacon had general and specific characteristics, with the key FAAs (glutamic acid, lysine, and alanine) being comparable and the key VOCs being dissimilar. Based on non-metric multidimensional scaling (NMDS) and linear discriminant analysis effect size (LefSe), bacteria had more biomarkers than fungi. Correlation analysis demonstrated that microorganisms, particularly bacteria (Staphylococcus and Salinivibrio), are crucial in regulating and shaping the flavor of bacon. Some sub-abundance of bacteria such as Kocuria enrich the flavor of bacon. These findings indicate that the simultaneous fermentation of multiple microorganisms is conducive to the recreation of the artisan flavor of Chinese bacon.
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13
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Effect of fermentation by Pediococcus pentosaceus and Staphylococcus carnosus on the metabolite profile of sausages. Food Res Int 2022; 162:112096. [PMID: 36461402 DOI: 10.1016/j.foodres.2022.112096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/22/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022]
Abstract
A multi-omics approach was applied to investigate the differences and correlations between characteristic volatile flavor substances and non-volatile metabolites in sausages fermented by Pediococcus pentosaceus (P. pentosaceus) and Staphylococcus carnosus (S. carnosus) alone and in a mixture. Twenty-seven volatile metabolites were identified by headspace solid-phase microextraction/gas chromatography-mass. According to orthogonal projections to latent structures-differential analysis, 17 characteristic volatile metabolites were detected in the sausages of different treatments. Utilizing ultra-high-performance liquid chromatography coupled with a mass spectrometer to analyze metabolite profiles, 42.03% of the non-volatile metabolites were classified as lipids and lipid-like molecules, 25.00% of organic acids and derivatives, and others. Seventeen characteristic flavor substances were significantly correlated with twenty differential non-volatile metabolites, and the non-volatile metabolites changed significantly. Differences in the characteristics and combinations of microorganisms themselves have a decisive role in the development of flavor substances and non-volatile metabolites in sausages.
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14
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Jeong CH, Lee SH, Kim HY. Microbiological Composition and Sensory Characterization Analysis of Fermented Sausage Using Strains Isolated from Korean Fermented Foods. Food Sci Anim Resour 2022; 42:928-941. [PMID: 36415576 PMCID: PMC9647183 DOI: 10.5851/kosfa.2022.e56] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/07/2022] [Accepted: 09/19/2022] [Indexed: 09/14/2023] Open
Abstract
This study aimed to analyze the microbiological composition and sensory characterization of fermented sausage using strains isolated from Kimchi (GK1, Pediococcus pentosaceus SMFM2016-GK1; NK3, P. pentosaceus SMFM2016-NK3), Doenjang (D1, Debaryomyces hansenii SMFM2021-D1), and spontaneously fermented sausage (S8, D. hansenii SMFM2021-S8; S6, Penicillium nalgiovense SMFM2021-S6). The control was commercial starter culture. Nine treatments were applied [GD (GK1+D1), GS (GK1+S8), GDS (GK1+D1+S8), ND (NK3+D1), NS (NK3+S8), NDS (NK3+D1+S8), GND (GK1+NK3+D1), GNS (GK1+NK3+S8), and GNDS (GK1+NK3+D1+S8)] by mixing lactic acid bacteria and yeast, and S6 was sprayed. The microbial composition of fermented sausage was analyzed [aerobic bacteria (AC), Lactobacillus spp. (LABC), Staphylococcus spp. (STPC), and yeast and mold (YMC)], and pH and electronic nose and tongue measurements were taken. The AC, LABC, STPC, and YMC values of the control and treatment groups tended to increase during fermentation (p>0.05). The STPC values of the GD, GS, ND, and GDS groups were similar to that of the control on day 3. The pH of the control on day 3 was significantly lower than that of the GD, ND, and GND groups (p<0.05). Higher levels of 4-methylpentanol, 2-furanmethanol, and propyl nonanoate, which provide a "fermented" flavor, were detected in the GD group compared to in the control and other treatment groups. GD and ND groups showed higher umami values than the control and other treatment groups. Therefore, it is expected that GD can be valuable as a starter culture unique to Korea when manufacturing fermented sausage.
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Affiliation(s)
- Chang-Hwan Jeong
- Department of Animal Resources Science,
Kongju National University, Yesan 32439, Korea
| | - Sol-Hee Lee
- Department of Animal Resources Science,
Kongju National University, Yesan 32439, Korea
| | - Hack-Youn Kim
- Department of Animal Resources Science,
Kongju National University, Yesan 32439, Korea
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15
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Li H, Wang C, Wang Z, Zhao K, Zhang J, Li S, Chen L, Tang H. Functional properties and flavor formation of two Staphylococcus simulans strains isolated from Chinese dry fermented sausages. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Zhou J, Ying Y, Peng J, Su P, Chen J, Hu Y. Lactic acid bacteria and
Staphylococcus carnosus
fermentation as a means for eliminating 4‐alkyl branched odor fatty acids of mutton jerky and its effect on other quality characteristics. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiaying Zhou
- College of Biosystems Engineering and Food Science, National‐Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro‐Food Processing, Fuli Institute of Food Science, Zhejiang University Hangzhou 310058
- College of Food Science and Engineering, Hainan Tropical Ocean University; Yazhou Bay Innovation Institute; Marine Food Engineering Technology Research Center of Hainan Province; Collaborative Innovation Center of Marine Food Deep Processing Sanya 572022
| | - Yubin Ying
- College of Biosystems Engineering and Food Science, National‐Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro‐Food Processing, Fuli Institute of Food Science, Zhejiang University Hangzhou 310058
- College of Food Science and Engineering, Hainan Tropical Ocean University; Yazhou Bay Innovation Institute; Marine Food Engineering Technology Research Center of Hainan Province; Collaborative Innovation Center of Marine Food Deep Processing Sanya 572022
| | - Jianbin Peng
- College of Biosystems Engineering and Food Science, National‐Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro‐Food Processing, Fuli Institute of Food Science, Zhejiang University Hangzhou 310058
| | - Ping Su
- College of Biosystems Engineering and Food Science, National‐Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro‐Food Processing, Fuli Institute of Food Science, Zhejiang University Hangzhou 310058
| | - Jianchu Chen
- College of Biosystems Engineering and Food Science, National‐Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro‐Food Processing, Fuli Institute of Food Science, Zhejiang University Hangzhou 310058
| | - Yaqin Hu
- College of Food Science and Engineering, Hainan Tropical Ocean University; Yazhou Bay Innovation Institute; Marine Food Engineering Technology Research Center of Hainan Province; Collaborative Innovation Center of Marine Food Deep Processing Sanya 572022
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