闽东大黄鱼在养殖和处理加工过程中的细菌污染  

Hygienic Status of Newly-caught and Chilly-processed Pseudosciaena crocea from Fish Farms along Coast of Fujian Province

作　　者：许钟[1] 郭全友[1] 杨宪时[1] 

机构地区：[1]中国水产科学研究院东海水产研究所,上海200090

出　　处：《中国食品卫生杂志》2006年第1期13-16,共4页Chinese Journal of Food Hygiene

基　　金：农业部引进国际先进农业科学技术项目(2001-478)

摘　　要：为了解闽东养殖大黄鱼的食品卫生状况,研究了闽东三都湾刚捕获及其经过冷却处理加工的养殖大黄鱼可食部分的细菌总数和细菌相。由于受不同养殖海区卫生状况的影响,刚捕获大黄鱼的细菌总数差别很大,为103～106CFUg。处理加工后大黄鱼细菌总数变化不明显。养殖密集海区刚捕获大黄鱼菌群中,嗜水气单胞菌居优势(25.2%),阴沟肠杆菌和弗氏柠檬酸杆菌占较大比例。处理加工后,嗜水气单胞菌所占比例下降为0,阴沟肠杆菌有所下降,其它菌群的比例有不同程度的上升。刚捕获和处理加工后大黄鱼的细菌总数和细菌相表明,大黄鱼的微生物污染主要来自养殖海区,处理加工过程没有明显的细菌污染,但是在处理加工结束时鱼体温度没有下降到0～8℃的冷却链范围,有待改进。In order to know the hygienic status of fish raised in east China sea, samples of newly-caught and chilly processed Pseudosciaena crocea from Sandu bay at the coast of FuJian Province is examined for the total number and flora of bacteria in the edible portion. The total bacterial count was influenced by the sanitary condition of the fish-farming water dramatically. Aeromonas hydrophila （25.5%） dominated in the microflora, a less proportion of Enterobacter cloacae and Cirtobacterfreundii was noted. After chilly processing the total bacterial count varied non-significantly, Aeromonas hydrophila disappeared, the proportion of Enterobacter cloacae decreased slightly, and the proportion of other bacteria increase at different levels. The total bacterial count and flora on newly-caught and processed Pseudosciaena crocea indicated that the microbial pollution mainly originated from cultivating water, and there was no significant microbial pollution in the processing. However, it was noted that the temperature of processed fish bodies did not meet the requirement of 0 - 8℃ of the cold chain.

关 键 词：鱼 大黄鱼 食品污染 冷却处理 食品处理和加工 

分 类 号：TS254[轻工技术与工程—水产品加工及贮藏工程]