食品中霉菌和酵母菌计数的检测能力验证结果分析

Analysis of verification results of detection ability of molds and yeasts in food

中文关键词:  霉菌  酵母菌  计数  能力验证

英文关键词:mould  yeast  count  proficiency testing

中文摘要:

      目的 分析食品中霉菌和酵母菌计数的检测能力验证的结果。方法 依据GB 4789.15—2016《食品安全国家标准 食品微生物学检验 霉菌和酵母计数》和食品中霉菌和酵母菌计数的检测能力验证(第一轮) [ACAS-PT899 (2020)]的指导书, 对2份测试样品进行稀释、培养、计数。结果 样品20-C229的检测结果: 霉菌780 CFU/mL, 酵母菌70 CFU/mL, 霉菌和酵母菌850 CFU/mL; 样品20-K432的检测结果: 霉菌 1200 CFU/mL, 酵母菌580 CFU/mL, 霉菌和酵母菌1800 CFU/mL。经评价, 2个考核样品|Z|均小于2.0, 结果评价均为满意。结论 本实验室具备食品中霉菌和酵母菌计数的检测能力。

英文摘要:

      Objective To analyze the results of the proficiency test for the count of mold and yeast in food. Methods According to GB 4789.2—2016 National food safety standard-Microbiological inspection determination of food-Determination of total bacterial count and the guidance on the testing ability verification of mold and yeast count in food (the first round) [ACAS-PT899 (2020)], 2 test samples were diluted, cultured and counted. Results The detection results of sample 20-C229: 780 CFU/mL for mold, 70 CFU/mL for yeast, 850 CFU/mL for mold and yeast, and the results of sample 20-K432: 1200 CFU/mL for mold, 580 CFU/mL for yeast, 1800 CFU/mL for mold and yeast. According to the evaluation, the |Z| values of the 2 assessment samples were all less than 2.0, and the evaluation results were satisfactory. Conclusion This laboratory has the ability to detect the count of mold and yeast in food.