Chitin waa polysaccharide wax laga beddelay oo ay ku jiraan nitrogen; waxaa laga soo saaraa unugyada N-acetyl-D-glucosamine (si sax ah, 2-(acetylamino)-2-deoxy-D-glucose). Unugyadani waxay sameeyaan isku xirnaanta β-(1→4)-isku xirnaanta (sida isku xirnaanta unugyada gulukooska ee sameeya cellulose). Sidaa darteed, chitin waxaa lagu tilmaami karaa inuu yahay cellulose oo leh hal koox hydroxyl ah oo ku yaal monomer kasta oo lagu beddelay koox acetyl amyline ah. Tani waxay u oggolaaneysaa isku xirnaanta hydrogen ee kordhay ee u dhexeeya polymers-ka deriska ah, iyadoo la siinayo xoojinta matrix-ka chitin-polymer. Su'aal: Waa maxay magaca polysaccharide polysaccharide ee Hofmann laga helay 1929?
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