食品中菌落总数能力验证结果分析

Analysis of Validation Results for Total Bacterial Count in Food

目的:为了加强食品中菌落总数检验能力,促进实验室内部质量控制,本实验室参加了中国检验检疫科学研究院测试评价中心组织的ACAS-PT1582(2023)食品中菌落总数计数能力验证。方法:依据《食品安全国家标准食品微生物学检验菌落总数测定》(GB 4789.2—2022)和能力验证作业指导书对两个样品进行检测。结果:样品A812菌落总数为1.4×10^(3)CFU·mL^(-1),样品Y109菌落总数为5.0×10^(3)CFU·mL^(-1)。经评价,两个考核样品的|Z|值均小于2,结果满意。结论:实验室具备食品中菌落总数的检测能力。

Objective:In order to strengthen the ability to detect total bacterial count in food and promote internal quality control in the laboratory,our laboratory participated in the ACAS-PT1582(2023)validation of the ability to count total bacterial count in food organized by the Testing and Evaluation Center of the Chinese Academy of Inspection and Quarantine Sciences.Method:Two samples were tested according to the GB 4789.2—2022 and the 3 capability verification operation manual.Result:The total colony count of sample A812 was 1.4×10^(3)CFU·mL^(-1),and 3 the total colony count of sample Y109 was 5.0×10^(3)CFU·mL^(-1).After evaluation,the|Z|values of both assessment samples are less than 2,and the results are satisfactory.Conclusion:The laboratory has the ability to detect the total number of bacterial colonies in food.