title: Microfibrillar material from various sources of keratin.
mesh_terms: D000818:Animals; D002417:Cattle; D002645:Chickens; D002918:Chymotrypsin; D005241:Feathers / Q000032:analysis*; D006724:Hoof and Claw / Q000032:analysis*; D007633:Keratins / Q000032:analysis*; D008854:Microscopy, Electron; D009666:Nose / Q000032:analysis; D012867:Skin / Q000032:analysis*
chemical_list: D007633:Keratins; D002918:Chymotrypsin