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水及食物microorganism查验方式is食物detectveryimportantof组成部分, is衡量食物卫生质量ofimportant指标. through食品microorganismdetect, be able to对食品ofbacteria污染程度做出一定evaluate.
水质及食品microorganismdetect常用of两pcsDetection Itemsisbacteria总数and大肠菌群. bacteria总数is指被检样品经过process, in一定条件下 (such asCulture Medium, Culture Temperatureandculture时间etc.) culture后, 所得每g(mL) 检样中形成ofmicroorganism菌落总数. 大肠菌群is指in一定Culture Conditions下能发酵乳糖, 产酸产气of需氧and兼性厌氧革兰氏阴性无芽孢杆菌.
编号 | 检验项目Items | 单位Unit | 检验结果Test Data | 备注Remarks |
1 | 菌落总数 | CFU/g或CFU/mL | 170000 | / |
2 | 大肠菌群 | CFU/g或CFU/mL | 50000 | / |
1, 样品量: 单指标of一times平行至少need30g(30mL) , 无菌袋封装, generally冰袋transport.
2, 多pcs平行 (n) recommend每pcs指标准备样品量for (n+2) copies , convenient实验取样.
菌落计数and大肠菌群常用ofDetection Methodis什么?
菌落计数generally参考GB 4789.2-2016食品safe国家标准 食品microorganism学检验菌落总数determine, 大肠菌群generally参考GB 4789.3-2016(第二法) 大肠菌群平板技术法.
