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germ
:
math, physics, and chemistry
>
Ethyl Green Bouillon By bacteria
煌绿肉汤增菌液
成分
肉浸液肉汤(或牛肉膏汤)1000ml
磷酸氢二钾1g
2%煌绿溶液0.5~10ml
制法
1将肉浸液肉汤加入磷酸氢二钾(原已有磷酸氢二钾者可不加),校正ph,分装烧瓶,每瓶100ml, 121℃高压灭菌20min。
22%煌绿水溶液于临用前配制。
3按比例[见gb 4789.19—94《食品卫生微生物学检验蛋与蛋制品检验》]于肉汤内加入煌绿溶 液,摇匀,备用。
注:①加入煌绿溶液时,肉汤温度不宜过高,一般以放冷为宜。
②煌绿的纯度不应低于93%。