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Chu Y, Wang J, Xie J. Exploring the correlation of microbial community diversity and succession with protein degradation and impact on the production of volatile compounds during cold storage of grouper (Epinephelus coioides). Food Chem 2024; 460:140469. [PMID: 39029368 DOI: 10.1016/j.foodchem.2024.140469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/10/2024] [Accepted: 07/13/2024] [Indexed: 07/21/2024]
Abstract
Microorganisms, proteins, and lipids play crucial and intricate roles in the aroma generation of aquatic products. To explore the impact of the interaction between microorganisms and proteins on the volatile compounds (VOCs) in grouper, this study employed whey protein isolate (WPI) to inhibit lipid oxidation and reduce mutual interference. Changes in bacterial profiles, metabolites, and VOCs were detected. Eighteen key VOCs associated with the overall flavor of grouper were identified, and the potential relationships among microorganisms, proteins, and VOCs were explored using a correlation network. Five microorganisms (Vibrio, Vagococcus, Pseudomonas, Psychrobacter, and Shewanella) closely related to characteristic flavor compounds were identified. Additionally, 30 differential metabolites related to proteins and six metabolic pathways were screened. Therefore, this study unveils the potential interaction between microorganisms and proteins in flavor formation and provides new insights into the relationships among microorganisms, proteins, and VOCs.
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Affiliation(s)
- Yuanming Chu
- College of Food Science & Technology, Shanghai Ocean University, Shanghai, China; National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
| | - Jinfeng Wang
- College of Food Science & Technology, Shanghai Ocean University, Shanghai, China; Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai, China; National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai, China.
| | - Jing Xie
- College of Food Science & Technology, Shanghai Ocean University, Shanghai, China; Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai, China; National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai, China; Collaborative Innovation Center of Seafood Deep Processing, Ministry of Education, Dalian 116034, China.
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Xue Y, Chen J, Wang L, Wang Y, Xu F. Exploring the flavor changes in mung bean flour through Lactobacillus fermentation: insights from volatile compounds and non-targeted metabolomics analysis. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:7238-7248. [PMID: 38625751 DOI: 10.1002/jsfa.13545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/23/2024] [Accepted: 04/16/2024] [Indexed: 04/18/2024]
Abstract
BACKGROUND Mung beans are highly nutritious but their leguminous flavor limits their development. Lactic acid bacteria (LAB) fermentation can decrease unwanted bean flavors in legumes and enhance their flavor. This study examined the influence of Lactobacillus fermentation on the flavor characteristics of mung bean flour (MBF) using volatile compounds and non-targeted metabolomics. RESULTS Lactobacillus plantarum LP90, Lactobacillus casei LC89, and Lactobacillus acidophilus LA85 eliminated 61.37%, 48.29%, and 43.73%, respectively, of the primary bean odor aldehydes from MBF. The relative odor activity value (ROAV) results showed that fermented mung bean flour (FMBF) included volatile chemicals that contributed to fruity, flowery, and milky aromas. These compounds included ethyl acetate, hexyl formate, 3-hydroxy-2-butanone, and 2,3-butanedione. The levels of amino acids with a fresh sweet flavor increased significantly by 93.89, 49.40, and 35.27% in LP90, LC89, and LA85, respectively. A total of 49 up-regulated and 13 down-regulated significantly differential metabolites were annotated, and ten metabolic pathways were screened for contributing to the flavor. The correlation between important volatile compounds and non-volatile substances relies on two primary metabolic pathways: the citric acid cycle pathway and the amino acid metabolic system. CONCLUSION The flavor of MBF was enhanced strongly by the process of Lactobacillus fermentation, with LP90 having the most notable impact. These results serve as a reference for identifying the flavor of FMBF. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Yuqi Xue
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
| | - Jie Chen
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
- Food Laboratory of Zhongyuan, Luohe, China
| | - Lei Wang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
| | - Yuwen Wang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
| | - Fei Xu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China
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Fei L, Ma Z, Yue A, Cui P, Qiu Y, Lyu F, Zhang J. Effect of low-voltage electrostatic field-assisted partial freezing on large yellow croaker protein properties and metabolomic analysis during storage. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:2359-2371. [PMID: 37985177 DOI: 10.1002/jsfa.13145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/15/2023] [Accepted: 11/21/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Large yellow croaker is highly perishable during storage because of high protein and moisture content. The degradation of the fish is mainly attributed to microbial growth and enzyme activity, so it is important to find an efficient storage method to extend its shelf life. METHODOLOGY This study investigated the effect of a low-voltage electrostatic field combined with partial freezing treatment on the physicochemical properties of myofibrillar protein (MP) and metabolomic analysis of large yellow croaker during preservation. The samples in chilled storage (C), partial freezing storage (PF) and 6 kV/m low-voltage electrostatic field partial freezing storage (LVEF-PF) were analyzed during an 18 day storage period. RESULTS In comparison with the C and PF groups, LVEF-PF delayed the oxidation of MP by inhibiting the formation of carbonyl groups (2.25 nmol/mg pro), and maintaining higher sulfhydryl content (29.73 nmol/mg pro). Fourier transform infrared (FTIR) spectroscopy and fluorescence spectroscopy analysis also demonstrated that the LVEF-PF treatment maintained the stability of the protein structure by increasing the a-helix ratio (19.88%) and reducing the random coil ratio (17.83%). Scanning electron microscopy showed that, compared with the LVEF-PF group, there was more degeneration and aggregation of MP in the C and PF groups after 18 days' storage. The results of untargeted metabolomic analysis showed that 415 kinds of differential metabolites were identified after storage, and the difference levels of differential metabolites were least between the samples treated with LVEF-PF stored on the ninth day and the fresh samples. The main differential metabolic pathways during storage were amino acid metabolism and lipid metabolism. CONCLUSION The LVEF-PF treatment could maintain the stability of myofibrillar protein in large yellow croaker during storage. These results showed a potential application of the LVEF-PF method for aquatic product preservation. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Lifeng Fei
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Ze Ma
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Aodong Yue
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Pengbo Cui
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Yue Qiu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Fei Lyu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Jianyou Zhang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
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Liu L, Lu S, Zhang W, Bai F, Wang J, Zhang X, Xu H, Jiang X, An S, Li W, Zhao Y, Xu X. Correlation investigation between core microbe inoculation and the evolution of flavor characteristics during the storage of sturgeon caviar (Acipenser gueldenstaedtii). Food Res Int 2024; 178:113903. [PMID: 38309899 DOI: 10.1016/j.foodres.2023.113903] [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: 09/26/2023] [Revised: 12/13/2023] [Accepted: 12/21/2023] [Indexed: 02/05/2024]
Abstract
The volatile and non-volatile compounds were monitored to investigate the microbial evolution associated with the characteristic flavors for sturgeon caviar during refrigeration. The results revealed that the composition of volatile compounds changed significantly with prolonged refrigeration time, especially hexanal, nonanal, phenylacetaldehyde, 3-methyl butyraldehyde, and 1-octen-3-ol. The nonvolatile metabolites were mainly represented by the increase of bitter amino acids (Thr. Ser, Gly, Ala, and Pro) and a decrease in polyunsaturated fatty acids, especially an 18.63 % decrease in 5 months of storage. A total of 332 differential metabolites were mainly involved in the biosynthetic metabolic pathways of α-linolenic acid, linoleic acid, and arachidonic acid. The precursors associated with flavor evolution were mainly phospholipids, including oleic, linoleic, arachidonic, eicosapentaenoic (EPA), and docosahexaenoic (DHA) acids. The most abundant at the genus level was Serratia, followed by Arsenophnus, Rhodococcus, and Pseudomonas, as obtained by high-throughput sequencing. Furthermore, seven core microorganisms were isolated and characterized from refrigerated caviar. Among them, inoculation with Mammalian coccus and Bacillus chrysosporium restored the flavor profile of caviar and enhanced the content of nonvolatile precursors, contributing to the characteristic aroma attributes of sturgeon caviar. The study presents a theoretical basis for the exploitation of technologies for quality stabilization and control of sturgeon caviar during storage.
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Affiliation(s)
- Li Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Shixue Lu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Weijia Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Fan Bai
- Quzhou Sturgeon Aquatic Food Science and Technology Development Co., Ltd., Quzhou 324002, China
| | - Jinlin Wang
- Quzhou Sturgeon Aquatic Food Science and Technology Development Co., Ltd., Quzhou 324002, China
| | - Xuqing Zhang
- Lianyungang Baohong Marine Technology Co., Ltd., Lianyungang 222000, China
| | - He Xu
- Lianyungang Baohong Marine Technology Co., Ltd., Lianyungang 222000, China
| | - Xiaoming Jiang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Shucai An
- Department of General Surgery, The District Hospital of Qingdao West Coast New Area, Qingdao 266400, Shandong, China
| | - Wei Li
- Department of General Surgery, The District Hospital of Qingdao West Coast New Area, Qingdao 266400, Shandong, China
| | - Yuanhui Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; Sanya Oceanographic Institution of Ocean University of China, Sanya 572024, China
| | - Xinxing Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China.
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Chu Y, Mei J, Xie J. Exploring the effects of lipid oxidation and free fatty acids on the development of volatile compounds in grouper during cold storage based on multivariate analysis. Food Chem X 2023; 20:100968. [PMID: 38144829 PMCID: PMC10740102 DOI: 10.1016/j.fochx.2023.100968] [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: 09/30/2023] [Revised: 10/12/2023] [Accepted: 10/25/2023] [Indexed: 12/26/2023] Open
Abstract
To investigate the relationship between lipid oxidation and the development of volatile compounds (VOCs) in grouper lipid during cold storage, lipids were extracted from grouper as a single-factor study to avoid the complex interactions between microorganisms and proteins. Lipid oxidation during storage and the content of 12 long-chain fatty acids (FAs) in grouper lipids were evaluated. The HS-SPME-GC-MS technique was used to analyze the VOCs in grouper lipids, and a total of 13 key VOCs, primarily comprising alcohols and aldehydes, were screened. Pearson correlation analysis showed a strong acorrelation between these 13 key VOCs, which influenced the overall flavor of grouper lipids, and lipid oxidation, mainly involving secondary oxidation of lipids and the oxidation of long-chain polyunsaturated fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Possible solutions for grouper lipid deterioration were proposed, providing a reference for maintaining the overall quality of grouper and regulating flavor formation.
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Affiliation(s)
- Yuanming Chu
- College of Food Science & Technology, Shanghai Ocean University, Shanghai, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
| | - Jun Mei
- College of Food Science & Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai, China
| | - Jing Xie
- College of Food Science & Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai, China
- Collaborative Innovation Center of Seafood Deep Processing, Ministry of Education, Dalian 116034, China
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