胃蛋白酶Pepsin

胃蛋白酶为白色至淡黄色粉末，无霉败异味，具有引湿性，易溶于水，水溶液呈乳白色、显酸性，几乎不溶于乙醇、乙醚、氯仿。其水溶液在 70℃以上或碱性环境下易失活，干燥状态下耐热性相对更好。需密封，于 2～8℃阴凉避光干燥处存放。

Pepsin is white to pale yellow powder, free from musty odor and hygroscopic. It is soluble in water, forming milky and acidic aqueous solution, and nearly insoluble in ethanol, ether and chloroform. Its aqueous solution tends to lose activity above 70℃ or under alkaline conditions, while the dry product shows relatively better heat resistance. Store tightly sealed at 2～8℃ in cool, dry and dark environment.