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Integrated Microbiome and Metabolomics Insights into Meat Quality Changes in Rice-Field Eel Slices During Refrigeration Storage: Effects of ε-Polylysine, Vitamin C, Epigallocatechin Gallate, and Phloretin

文献类型： 外文期刊

作者： Shi, Liu 1 ; Yang, Lifeng 1 ; You, Juan 2 ; Wu, Wenjin 1 ; Xiong, Guangquan 1 ; Wang, Lan 1 ; Yin, Tao 1 ;

作者机构： 1.Hubei Acad Agr Sci, Key Lab Cold Chain Logist Technol Agroprod, Minist Agr & Rural Affairs, Inst Agroprod Proc & Nucl Agr Technol, Wuhan 430064, Peoples R China

2.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Peoples R China

3.Ctr Convent Freshwater Fish Proc Wuhan, Natl R&D Branch, Wuhan 430070, Peoples R China

4.Nanning Univ, Coll Food & Qual Engn, Nanning 530200, Peoples R China

关键词： muscle quality; biomarker; 16S rRNA sequencing; metabolic pathway; myoglobin

期刊名称：FOODS （ 影响因子：5.1； 五年影响因子：5.6 ）

ISSN：

年卷期： 2025 年 14 卷 13 期

页码：

收录情况： SCI

摘要： Rice-field eel (Monopterus albus) slices, an important aquatic product in Southeast Asia, are prone to spoilage and deterioration during cold chain storage. In this study, the effects of a composite preservative (epsilon-polylysine, Vitamin C (Vc), epigallocatechin gallate (EGCG), and phloretin) on the muscle quality (color, texture, water holding capacity (WHC)) of rice-field eel slices during refrigeration storage at 4 degrees C for up to 7 days was investigated, and the underlying mechanism was elucidated by the integrated microbiome and metabolomics, in addition to Elisa and Low-Field Nuclear Magnetic Resonance (LF-NMR). After 7 days of storage, the WHC, shear force, and a* decreased by 11.39%, 34.37%, and 49.20% in treated samples, and by 19.18%, 38.38%, and 54.87% in control samples, respectively. The addition of the composite preservative significantly increased Hexokinase, Pyruvate kinase, and Creatine kinase, while it decreased the total viable count (TVC), total volatile basic nitrogen (TVB-N), thiobarbituric acid reactive substance (TBARS), and Lactic acid. Preservative treatment maintained the moisture content of the eel slices during storage and prevented bright red oxymyoglobin from transforming into brown metmyoglobin. Microbiota composition (especially Pseudomonas) and metabolic pathways (including amino acid and its metabolites, nucleotide and its metabolite, and organic acid and its derivatives, etc.) were obviously altered by the preservative treatment. Pseudomonas, tryptophan-aspartic acid (Trp-Asp), D-Glucose 6-phosphate, Succinic Acid, Biliverdin 1, 5-Diaminopentane, and Tyramine, etc., are potential biomarkers for the quality changes of eel slices during refrigeration. These findings provide an in-depth understanding of the improvement of the eel slice quality during refrigeration storage by the composite preservative.

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