蛋白胨来源于明胶 [明胶蛋白胨]，Peptone from gelatin；pancreatic digested, suitable for microbiology

Appearance: Lightly yellow to lightly brownishyellow fine powder.
Appearance of solution (5 %; water): Clear and yellow to brownishyellow.
pH-value (5 %; water): 6.5 - 7.5
Amino nitrogen (as N): 2.2 - 3.2 %
Total nitrogen (N) (Kjeldahl): 15.5 - 17.0 %
Sulfated ash (800 °C): ≤ 15.0 %
Loss on Drying (105°C): ≤ 6.0 %
Ca (Calcium): ≤ 0.2 %
Suitability for microbiology: passes test
Identity (NIR): passes test