更新時間:2016-06-15
雙料乳糖膽鹽(含中和劑)培養基,年中放價銷售了,低價、*、優惠價供應,微生物培養基折扣價提供,BD培養基、Gibco培養基、Amresco培養基、OXOID培養基等國內外培養基,我們傾情提供。
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雙料乳糖膽鹽(含中和劑)培養基 | Double Lactose Bile Medium | 250g | 用于化妝品中糞大腸菌群的測定(GB標準) |
用途:用于化妝品中糞大腸菌群的測定(GB標準)
雙料乳糖膽鹽(含中和劑)培養基配方:(g/L) | |||||||||||||||||||||||||||||
蛋白胨 乳糖 牛膽鹽 溴甲酚紫 pH值 7.4 ± 0.2 | 40.0 10.0 20.0 0.02 25℃ | ||||||||||||||||||||||||||||
原理: | |||||||||||||||||||||||||||||
蛋白胨提供氮源,維生素,生長因子;乳糖提供能源;牛膽鹽抑制革蘭氏陰性菌生長;溴甲酚紫作為指示劑。 | |||||||||||||||||||||||||||||
用法: | |||||||||||||||||||||||||||||
稱取本品 70.0g,溶解于1000ml 蒸餾水中,分裝到有倒立發酵管的20mm×150mm試管中,每管10ml,115℃高壓滅菌 15 分鐘,備用。 | |||||||||||||||||||||||||||||
質量控制: | |||||||||||||||||||||||||||||
在36±1℃培養18-24小時。
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