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Effects of HVEF treatment on microbial communities and physicochemical properties of catfish fillets during chilled storage

文献类型： 外文期刊

作者： Huang, Han 1 ; Sun, Weiqing 2 ; Xiong, Guangquan 1 ; Shi, Liu 1 ; Jiao, Chunhai 1 ; Wu, Wenjing 1 ; Li, Xin 1 ; Qiao, Yu; 1 ;

作者机构： 1.Hubei Acad Agr Sci, Inst Farm Prod Proc & Nucl Agr Technol, Wuhan 430064, Peoples R China

2.Yangtze Univ, Coll Life Sci, Jingzhou 434023, Peoples R China

关键词： High voltage electrostatic field; Catfish fillets; Physicochemical properties; High-throughput sequencing

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：4.952； 五年影响因子：5.383 ）

ISSN： 0023-6438

年卷期： 2020 年 131 卷

页码：

收录情况： SCI

摘要： The effects of high-voltage electrostatic field (HVEF) on the microbial communities and quality characteristics of catfish fillets were investigated. Samples with 30 kV/15 min HVEF treatment and without treatment (control) were stored at 4 degrees C for 0, 1, 3, 5 and 7 d. The total volatile basic nitrogen (TVB-N) and total viable count (TVC) of HVEF-treated sample (20.5 mg/100 g and 5.64 log CFU/g, respectively) were significantly lower than those of the control (32.4 mg/100 g and 7.42 log CFU/g, respectively) at 7 d. Therefore, the shelf life of HVEF-treated fillets was 2 days longer than the control (5 d). Besides, HVEF treated samples showed less tissue damages, lower thiobarbituric acid-reactive substances (TBARS) and higher water holding capacity throughout the chilling storage. Additionally, the high-throughput sequencing results indicated that HVEF treatment reduced the relevant abundance of Flavobacterium and Geobacillus at 0 d, and mainly inhibited the growth of Acinetobacter and Streptococcus after 7 d storage, which meant the growth of spoilage bacteria were inhibited, corresponding with the results of TVB-N and TVC. The results indicated HVEF treatment could be implemented as a new fish processing technology to delay product quality deterioration and extend the shelf life of catfish fillets.

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