Figure 1. Acid-mediated hydrolysis of chitin through the formation of hemiacetal and free amino moieties to give glucosamine.

From

Cicada Shells as Chemical Education Resources to Study Functional Groups and Environmental Cycles

Naoki Maruyama, Toratane Munegumi

World Journal of Chemical Education. 2023, 11(4), 127-133 doi:10.12691/wjce-11-4-1