The presence of non-protein nitrogen in acetic acid-soluble calf-skin collagen.
D000085:Acetates; D019342:Acetic Acid; D000818:Animals; D002417:Cattle; D003094:Collagen; D009584:Nitrogen / Q000737:chemistry*
D000085:Acetates; D003094:Collagen; D009584:Nitrogen; D019342:Acetic Acid
NITROGEN/chemistry