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germ
>
potato medium
马铃薯 20g
蔗糖 2g
自来水 100ml
琼脂 2g
ph 自然(约6.0)
灭菌 1.05kg/cm2,20min
马铃薯处理方法:
马铃薯去皮,切成块加水,煮沸30min(注意火力的控制,可适当补水) ,用纱布过滤,滤液加糖,补足水至100ml,装入三角瓶。