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太平洋牡蛎细菌菌相分析及-20℃冻藏过程中菌相变化
引用本文:曹荣,薛长湖,许加超,李兆杰.太平洋牡蛎细菌菌相分析及-20℃冻藏过程中菌相变化[J].食品与发酵工业,2006,32(3):1-3.
作者姓名:曹荣  薛长湖  许加超  李兆杰
作者单位:中国海洋大学食品科学与工程学院,青岛,266003
基金项目:"新世纪优秀人才支持计划"资助项目
摘    要:以胶州湾太平洋牡蛎(Crassostrea gigas)为研究对象,分析了生鲜牡蛎的细菌菌相及在-20℃冻藏过程中的菌相变化情况。研究发现,生鲜牡蛎的初始菌相比较复杂,从生鲜牡蛎中分离到的85株细菌分别属于14个属(科),其中Pseudomonas和Vibrionaceae为优势菌,比例分别为22.4%和20.0%。冻藏过程中,各属(科)细菌的数量都呈下降趋势,Flavobacterium、Staphylococcus、Micrococcus、Lactococcus和Lactobacillus由于其较强的耐冻性,成为牡蛎冻藏过程中的优势菌。

关 键 词:太平洋牡蛎  细菌菌相  -20℃冻藏  菌相变化
收稿时间:10 20 2005 12:00AM
修稿时间:12 29 2005 12:00AM

Analysis of Microflora of Raw Pacific Oyster and Change of Microflora during Frozen Storage
Cao Rong, Xue Changhu.Analysis of Microflora of Raw Pacific Oyster and Change of Microflora during Frozen Storage[J].Food and Fermentation Industries,2006,32(3):1-3.
Authors:Cao Rong  Xue Changhu
Abstract:The microflora of raw Pacific oyster (Crassostrea gigas) and the microflora changes of samples storaged at -20℃ were analyzed. 85 strains from raw samples were isolated and identified. All of the 85 strains belonged to 14 genera, of which Pseudomonas and Vibrionaceae are the preponderant germs, which account for 22.4% and 20.0% respectively. Because of the relative high resistance against freezing, the proportions of Flavobacterium,Staphylococcus,Micrococcus,Lactococcus and Lactobacillus attained 28%,16%,22%,12% and 16% respectively after 90 days and became the predominant germs of oysters during -20℃ storage.
Keywords:Pacific oyster  microflora  frozen storage  change of microflora  
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