释义 |
chitosan
chitosan (ˈkaɪtəʊˌzæn) na polysaccharide produced from chitinchitosan
chitosan (kī′tō-săn) A polysaccharide made of glucosamine, naturally present in the exoskeleton of crustaceans. It resists digestion in the stomach but degrades in the colon. It is used to protect drugs and oral vaccines for controlled release into the gastrointestinal tract. |