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.
