壳聚糖处理对冷藏罗氏沼虾微生物多样性的影响

IF 1.3 4区 农林科学 Q4 FOOD SCIENCE & TECHNOLOGY
D. Zhou, Haiqi Zhang, Pengcheng Shen, Yanna Cui, Xueping Ye, Dongren Zhou
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引用次数: 0

摘要

摘要本研究旨在评价壳聚糖对罗氏沼虾冷藏保鲜的影响。将罗氏沼虾样品分为对照组和实验组,分别浸泡在纯水和1.5%壳聚糖溶液中,然后在4°C下储存。测量组织感官评分、pH(氢电位)、总挥发性碱氮(TVB-N)、总活菌数(TVC)和K值的变化。此外,16S核糖体核糖核酸(rRNA)测序用于研究壳聚糖在不同储存时间对对虾体内微生物多样性的影响。壳聚糖处理罗氏沼虾可抑制对虾TVB-N、TVC和K值的增加,从而延长对虾肉的保质期两到三天。在贮藏过程中,乳球菌和肝浆念珠菌成为罗氏沼虾细菌群落的主要腐败菌。罗氏乳杆菌实验样品在贮藏后期乳球菌的丰度高达69.84%,而对照组在贮藏中期的肝浆乳球菌丰度高达46.88%。壳聚糖有效地控制了罗氏沼虾肉在冷藏过程中品质的变化,改变了其细菌群落结构,抑制了腐败,并表现出有益的保鲜效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Effect of Chitosan Treatment on the Microbial Diversity of Cold-Stored Macrobrachium rosenbergii
ABSTRACT The objective of the study was to evaluate the effect of chitosan on the pre-servation of Macrobrachium rosenbergii during cold storage. M. rosenbergii samples were divided into control and experimental groups and immersed in pure water and 1.5% chitosan solutions, respectively, followed by storage at 4°C Changes were measured in tissue sensory scores, pH (hydrogen potential), total volatile base nitrogen (TVB-N), total viable count (TVC), and K values. Further, 16S ribosomal ribonucleic acid (rRNA) sequencing was used to study the effects of chitosan on microbial diversity within prawns across storage times. Treating M. rosenbergii with chitosan inhibited increases in TVB-N, TVC, and K values of prawns, thereby extending prawn meat shelf life by two to three days. During storage, Lactococcus and Candidatus Hepatoplasma became the dominant spoilage bacteria of M. rosenbergii bacterial communities. The abundance of Lactococcus in the experimental M. rosenbergii samples was as high as 69.84% during the late storage stage, while the abundance of Candidatus Hepatoplasma in the control group was as high as 46.88% in the middle storage stage. Chitosan effectively controlled changes in the quality of M. rosenbergii meat during cold storage, altered their bacterial community structures, inhibited spoilage, and exhibited beneficial preservation effects.
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来源期刊
Journal of Aquatic Food Product Technology
Journal of Aquatic Food Product Technology 农林科学-食品科技
CiteScore
3.50
自引率
6.20%
发文量
77
审稿时长
7 months
期刊介绍: The Journal of Aquatic Food Product Technology publishes research papers, short communications, and review articles concerning the application of science and technology and biotechnology to all aspects of research, innovation, production, and distribution of food products originating from the marine and freshwater bodies of the world. The journal features articles on various aspects of basic and applied science in topics related to: -harvesting and handling practices- processing with traditional and new technologies- refrigeration and freezing- packaging and storage- safety and traceability- byproduct utilization- consumer attitudes toward aquatic food. The Journal also covers basic studies of aquatic products as related to food chemistry, microbiology, and engineering, such as all flora and fauna from aquatic environs, including seaweeds and underutilized species used directly for human consumption or alternative uses. Special features in the journal include guest editorials by specialists in their fields and book reviews covering a wide range of topics.
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