Figure 8
From: Feather keratin hydrolysates obtained from microbial keratinases: effect on hair fiber
Electronic scanning microscope images obtained from an untreated bleached hair (A, B) and treated with the enzymatic hydrolysates with heat (C,D) or without heat (E,F). Black arrow indicates deposit of peptides from the enzymatic hydrolysates and white arrow shows the broken edges of the cuticle.