Figure 7. Benedict reaction of standard (a) chitin and (b) cicada shells hydrolyzed in 12 M HCl at 25 C.

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