广州秋季市售生蚝微生物污染状况调查

Investigation of Microbial Contaminations in Retail Oysters Available in Guangzhou market in Autumn

摘要:

目的是了解广州秋季市售生蚝微生物污染状况。按照GB/T 4789-2003《食品卫生微生物学检验》对样品进行微生物检测，结果发现秋季市售生蚝的微生物污染状况比较严重，菌落总数和大肠菌群指标均出现严重超标，超标率分别达到68%和78%，即使在温度偏低的11月份超标现象仍较严重。所检样品中，弧菌超标更为严重，3个月弧菌的检出率则高达90%。结论是广州市售生蚝的微生物污染状况严重，建议消费者不要生食或使用未煮熟的生蚝。

Abstract:

The microbial contaminations in retail oysters available in Guangzhou market in autumn was investigated by using the national standard method GB/T 4789-2003. Results showed that microbial contaminations in retail oysters in autumn in Guangzhou market were widespread in a serious state. Total plate count in 68% samples examined exceeded the limit set by Europe Union, whereas coliform counts in 78% samples examined exceeded the related limit set by Europe Union. Although the weather was becoming cold in November, microbial contamination was still widespread. Within this three-month examination months, the detection rate of vibrio species was as high as 90%. Hence, it was suggested that consumers should not eat raw or undercooked oysters.