Isishwankathelo:Ngokubanzi, i-chitin ibhekisa ikakhulu kwi-chitosan, ekwabizwa ngokuba yi-chitosan, i-deacetylated chitin, i-deacetylated chitin, i-chitin enyibilikayo, kunye ne-chitin enyibilikayo.I-amorphous solids, i-rotation ethile[ α] D11—3°～+10 °. Phantse ayinakunyibilika emanzini, kodwa i-soluble kwi-organic acids efana ne-formic acid, i-acetic acid, i-benzoic acid, i-naphthenic acid, kunye ne-dilute inorganic acids.Iimveliso zemizi-mveliso zimhlophe okanye zingwevu ngeshiti eliguquguqukayo elimhlophe njengokuqina kunye nokukhazimla kweperile encinci.I-Odorless, i-Chemicalbook ayinayo ityhefu, iyancipha ngokulula, kwaye inqabileyo yendalo ye-cationic polyelectrolyte.I-Polysaccharides efunyenwe nge-hydrolysis ene-alkali enamandla okanye i-enzymatic hydrolysis ukususa amaqela e-acetyl kwiqela leswekile le-chitin.Iyanyibilika kwizisombululo ezinamanzi aneasidi ephantsi, ine-biocompatibility elungileyo, ayinayo i-antigenicity, kwaye ayinyibiliki kulwelo lwabantu.Ifunyenwe kwi-chitin kwiigobolondo zezilwanyana ezisezantsi kunye nezityalo ezifumaneka ngokubanzi kwindalo, njenge-arthropods (i-shrimp, i-crab), ngokuphendula kwe-deacetylation ngokudibanisa i-alkali kunye nokufudumeza.
Isenzo:Kukho iindlela ezimbini eziphambili zempembelelo ye-antibacterial ye-chitosan: enye kukuba i-chitosan adsorbs phezu kweeseli ukwenza i-membrane ye-molecular ephezulu, ukuthintela ukuthuthwa kwezondlo kwiiseli, ngaloo ndlela idlala indima ye-bacteriostatic kunye ne-bactericidal;Enye indlela yeyokuba i-chitosan ingena kumzimba weseli, ibhengeza i-cytoplasm ene-Chemicalbook anions kumzimba weseli, kwaye ibangele ukushukuma, iphazamise imisebenzi yesiqhelo yomzimba yeseli, ngaloo ndlela ibulala iintsholongwane.Ngenxa yezakhiwo ezahlukeneyo zodonga lweeseli zebhaktheriya yegram-positive kunye ne-gram negative bacteria, kunye nemigangatho eyahlukeneyo yempembelelo yemiphumo emibini kuzo, i-chitosan enobunzima obuhlukeneyo bemolekyuli ineendlela ezahlukeneyo zokulwa ne-antibacterial.I-Chitosan yintsika yokutya enemiphumo ukunciphisa i-serum cholesterol, ukulawula i-intestinal flora, kunye nokunciphisa uxinzelelo lwegazi.Emva kokungeniswa komntu kwe-chitosan, uhlalutyo lwe-fecal lubonisa ukuba phantse ayigatywanga kwaye ifunxa, ngoko ke iyinxalenye yodidi lwefiber yokutya.
Okwangoku, uZhongAn useke unxibelelwano nemarike yase-USA, kwaye uyaqhubeka nokubabonelela ngeChitosan nyanga zonke.Ukuba unayo nayiphi na imfuno, ungaqhagamshelana noZhongAn, kwaye uZhongAn uya kubonelela ngezona mpahla kunye neenkonzo ezingcono.
Ixesha lokuposa: Mar-24-2023
