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Luo J, Liang L, Zhang J, Bi Y, Yang R, Sun B, Zhang Y. Effect of yeast (Saccharomyces cerevisiae) fermentation on conformational changes in pig liver proteins and their ability to bind to characteristic aldehydes. Food Chem 2024; 460:140637. [PMID: 39111139 DOI: 10.1016/j.foodchem.2024.140637] [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: 05/06/2024] [Revised: 07/06/2024] [Accepted: 07/23/2024] [Indexed: 09/05/2024]
Abstract
This study aimed to explore the potential of a fermentation technology to reduce off-flavour perception and its underlying mechanisms. Results revealed that yeast fermentation (YF) significantly ameliorated the off-flavour of pig liver (p < 0.05). Specifically, YF pre-treatment decreased the relative abundance of α-helix and fluorescence intensity while increasing the surface hydrophobicity and SS level and loosening the microstructure of myofibrillar proteins (MPs) in pig liver. Additionally, the appropriate fermentation treatments enhanced the MP-aldehyde binding capacity by 0.25-1.30 times, demonstrating that YF-induced conformational modifications in pig liver proteins made them more prone to interacting with characteristic aldehydes. Moreover, molecular docking results confirmed that hydrophobic interactions are the primary drivers of MP-aldehyde binding. These findings suggest that YF technology holds immense promise for modulating off-flavour perception in liver products by altering protein conformation.
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Affiliation(s)
- Jin Luo
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China; Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, 100048, China
| | - Li Liang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China; Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, 100048, China
| | - Jingcheng Zhang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China; Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, 100048, China
| | - Yongzhao Bi
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China; Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, 100048, China
| | - Rui Yang
- State Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Baoguo Sun
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China; Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China
| | - Yuyu Zhang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China; Food Laboratory of Zhongyuan, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Flavor Science of China General Chamber of Commerce, Beijing Technology and Business University, 100048, China.
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Liu L, Zhao Y, Zeng M, Xu X. Research progress of fishy odor in aquatic products: From substance identification, formation mechanism, to elimination pathway. Food Res Int 2024; 178:113914. [PMID: 38309863 DOI: 10.1016/j.foodres.2023.113914] [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: 09/15/2023] [Revised: 12/13/2023] [Accepted: 12/21/2023] [Indexed: 02/05/2024]
Abstract
Fishy odor in aquatic products has a significant impact on the purchasing decisions of consumers. The production of aquatic products is a complex process involving culture, processing, transportation, and storage, which contribute to decreases in flavor and quality. This review systematically summarizes the fishy odor composition, identification methods, generation mechanism, and elimination methods of fishy odor compounds from their origin and formation to their elimination. Fishy odor compounds include aldehydes (hexanal, heptanal, and nonanal), alcohols (1-octen-3-ol), sulfur-containing compounds (dimethyl sulfide), and amines (trimethylamine). The mechanism of action of various factors affecting fishy odor is revealed, including environmental factors, enzymatic reactions, lipid oxidation, protein degradation, and microbial metabolism. Furthermore, the control and removal of fishy odor are briefly summarized and discussed, including masking, elimination, and conversion. This study provides a theoretical basis from source to elimination for achieving targeted regulation of the flavor of aquatic products, promoting industrial innovation and upgrading.
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Affiliation(s)
- Li Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China
| | - Yuanhui Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China
| | - Mingyong Zeng
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China.
| | - Xinxing Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China.
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Wang X, Le B, Na Z, Bak KH, Zhang Y, Fu Y. Off‐flavor compounds in collagen peptides from fish: Formation, detection and removal. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xilong Wang
- College of Food Science Southwest University Chongqing 400715 China
| | - Bei Le
- College of Food Science Southwest University Chongqing 400715 China
| | - Zhang Na
- Key Laboratory of Food Science and Engineering of Heilongjiang Province, College of 4Food Engineering Harbin University of Commerce Harbin 150076 China
| | - Kathrine H. Bak
- Institute of Food Safety Food Technology and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinärplatz 1 1210 Vienna Austria
| | - Yuhao Zhang
- College of Food Science Southwest University Chongqing 400715 China
- Chongqing Key Laboratory of Speciality Food Co‐Built by Sichuan and Chongqing Chongqing 400715 China
| | - Yu Fu
- College of Food Science Southwest University Chongqing 400715 China
- Chongqing Key Laboratory of Speciality Food Co‐Built by Sichuan and Chongqing Chongqing 400715 China
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