Figure 6. Benedict reaction of (a) standard chitin and (b) cicada shells hydrolyzed in 12 m HCl at 110 C. (c) Acid-hydrolysis of cicada shells in 12 m HCl at 110 C before the Benedict reaction. 0 h (A): without chitin; 0 h (B): with chitin.

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