The aim of this work was to study the effect of carbon and nitrogen sources in submerged fermentation 414, 264 and 167 S.U., when using HCl 0.2 N, 0.3 N and 0.4 N respectively. SSF experiments using 1 and 2 g of casein/gram wheat bran (10% moisture) showed an increase in the enzymatic production (966 and 1,117 S.U.). The results suggested that increase in glucose concentration affected the enzyme synthesis, and casein was the prime factor in the enzyme synthesis induction. SSF showed to be a good system for rennin production.

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