R4877
Rennin from calf stomach
≥20 units/mg protein
Synonym(s):
Chymosin
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About This Item
Recommended Products
form
lyophilized powder
Quality Level
specific activity
≥20 units/mg protein
purified by
crystallization
composition
Protein, ≥40%
storage temp.
−20°C
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Application
Rennin, also known as chymosin, is a milkclotting acid proteinase produced in the stomach of a calf. It is used in cheesemaking and to study neonatal gastric digestion .
Biochem/physiol Actions
Rennin, a 323 amino acid chain, is secreted as an inactive precursor which is then converted into an active enzyme through limited proteolysis. It cleaves the peptide bond between phenylalanine and methionine in K-Casein.
Packaging
Package size based on protein content
Unit Definition
One unit will coagulate 10 mL of milk per min at 30 °C.
Physical form
Lyophilized powder containing sodium chloride
Analysis Note
Protein determined by biuret.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
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