维生素C压片糖果微生物限度检验方法适用性试验

Applicability Test of Microbial Limit Test Method for Vitamin C Tableted Candy

目的:验证维生素C压片糖果的微生物限度检验方法。方法:按GB 4789.2—2016、GB 4789.15—2016、GB 4789.3—2016(第二法)、GB 4789.10—2016和GB 4789.4—2016方法,人为添加目标微生物,分别进行菌落总数、霉菌和酵母、大肠菌群、金黄色葡萄球菌和沙门氏菌试验。结果:样品经pH调节后基本无抑菌性,计数试验回收比值均在0.5~2范围内,控制菌试验组均未检出金黄色葡萄球菌和沙门氏菌。结论:上述方法适用该产品的微生物限度检验,结果有效可行。

Objective:To verify the microbial limit test method of vitamin C pressed candy.Method:According to GB 4789.2—2016,GB 4789.15—2016,GB 4789.3—2016(the second method),GB 4789.10—2016 and GB 4789.4—2016,artificially add target microorganisms,and respectively test the aerobic plate count,moulds and yeasts,coliforms,Staphylococcus aureus and Salmonella.Results:The samples were basically non-bacterial after pH adjustment,and the recovery ratios of the counting test were all in the range of 0.5~2.The control bacteria test group did not detect Staphylococcus aureus and Salmonella.Conclusion:The above method is applicable to the microbial limit test of the product,and the results are effective and feasible.