Native Calf Stomach Rennin

Specification

• Cat#: THP-180
• Product Name: Native Calf Stomach Rennin
• Description: Rennin is a proteolytic enzyme found principally in the tissue of the fourth stomach of young calves, but also in some other ruminant mammals. Extracts from the fourth stomach of calves (vells) contain both active Rennin and also a zymogen prorennin which is activated to Rennin by exposure to pH 3.6 at 4°C for 1 to 2 days (Methods of Enzymatic Analysis, Bergmeyer, H.U., ed. Vol 2, 69, 1955, Academic Press, New York). The crude extract from vells used in cheese and known as Rennet may be purified to a stage where it is relatively easy to obtain crystalline Rennin.
• Species: Calf Stomach
• Molecular Weight: The molecular weight of Rennin has been given as 40,000
• Source: Calf Stomach
• Stability: -20° C; -4° F
• Physical Appearance: Freeze-dried
• Optimal pH: Rennin is most stable between pH 5.5 and 6.0 ;Its optimum activity on hemoglobin is at pH 3.7