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Figure 2

From: Characterization of chitin and chitosan derived from Hermetia illucens, a further step in a circular economy process

Figure 2

(a) FTIR spectra of both unbleached (A,C) and bleached (B,D) chitin (A,B) and chitosan (C,D) samples extracted from H. illucens larvae (red line), pupal exuviae (blue line) and dead adults (black line). Commercial chitin and chitosan (wine lines) derived from crustaceans also are reported. (b) XRD spectra of both unbleached (A,C) and bleached (B,D) chitin (A,B) and chitosan (C,D) samples extracted from H. illucens larvae (red line), pupal exuviae (blue line) and dead adults (black line). Commercial chitin and chitosan (wine lines) derived from crustaceans are also reported.

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