Q56: The egg shell membrane contains a bacteriolytic enzyme namely - Technology of Food Products, Packaging & Waste Management - ICAR AIEEA PGFood Science Technology 09 July 2023 (Shift 1) Paper | Agrigyan

Antimicrobial barrier enzymes in eggshell membranes:

• General endoglycosidases cleave interior glycan linkages but are not specific eggshell defense enzymes.
• Endoglycosidase H is a microbial enzyme used in molecular biology laboratories.
• The eggshell membrane and egg albumen contain $\beta$-N-acetylglucosaminidase, an active bacteriolytic glycosidase that hydrolyzes terminal N-acetylglucosamine residues of bacterial peptidoglycans, preventing bacterial penetration through the porous shell.
• Glucan-4-glucanohydrolase cleaves $(1\to4)$-$\alpha$-D-glucan bonds in starch/glycogen.