蛋白胨来源于酪蛋白 [酪蛋白胨, 酸消化物]，Peptone from casein, acid digest

生物来源

bovine milk

质量水平

200

测定

≥4% amino-nitrogen basis
≥7% total nitrogen (N) basis

形式

powder

杂质

≤45% chloride (NaCl)

缺失

≤6% loss on drying

pH值（酸碱度）

5.5±1.0 (25 °C, 2% in H₂O)

溶解性

H₂O: 2%, clear, faintly to slightly yellow

application(s)

food and beverages
microbiology