磷酸氢二钾Dipotassim hydrogen phosphate...1.0g 硫酸镁Magnessim hydrogen phosphate........0.5g 最终pH Final pH...........................6.4±0.2 胨Peptone.................................5.0g 酵母浸出粉Yeast extract...................5g 葡萄糖Dextrose............................20.0g 有效期:三年 Period of validity:Three years