Abstract

1. 1. The hydrolysis of glycol chitin preparations by several β- N-acetylglucosaminidases was monitored colorimetrically with the potassium ferriferrocyanide reagent. 2. 2. Glycol chitin samples from crab and insect sources varied considerably in chemical composition and susceptibility to enzymatic hydrolysis. 3. 3. Insect endochitinase preferred crab glycol chitin as substrate while hen's egg white lysozyme preferred commercial glycol chitin. 4. 4. Insect glycol chitin was well hydrolyzed by both enzymes. 5. 5. Insect exochitinase did not digest glycol chitin.

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