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chymozín
Subject h. chymozín Subject h. Chymosin English X references Rennin Scope note in English The predominant milk-clotting enzyme from the true stomach or abomasum of the suckling calf. It is secreted as an inactive precursor called prorennin and converted in the acid environment of the stomach to the active enzyme. EC 3.4.23.4. 
subject heading
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