•Ke Eng? Chitosan?
Chitosan(CS) ke polysaccharide ea bobeli e kholo ka ho fetisisa ea tlhaho ka tlhaho, haholo-holo e ntšitsoeng likhetleng tsa crustaceans tse kang shrimp le crab. Chitin ea eona ea mantlha e etsa karolo ea 27% ea litšila tse sebetsanang le li-shrimp le crab, 'me tlhahiso ea selemo le selemo e feta lithane tse limilione tse 13. Traditional ntšitsoeng hloka dithulaganyo tse tharo: acid leaching decalcification (qhibilia khalsiamo carbonate), alkaline a phehile ho tlosa protheine, 'me 40-50% concentrated alkali deacetylation,' me qetellong e fumana e tiileng e tšoeu ka tekanyo ea deacetylation e fetang 70%.
Khatelo-pele lilemong tsa morao tjena ke nts'etsopele ea fungal chitosan: chitosan e ntšitsoeng ho li-fungus tse kang Ganoderma lucidum ka mokhoa oa enzymatic e na le tekanyo ea deacetylation e fetang 85%, boima ba molek'hule ke 1/3 feela ho tloha ho shrimp le crab (hoo e ka bang 8-66kDa), 'me ha e na liprotheine tsa allergenic, le lisele tsa allergenic. Sehlopha sa Chinese Academy of Agricultural Sciences se netefalitse hore mokhoa oa ho ntšoa ha fungus-chitosan hybrid o ka laola ho kheloha ha boima ba limolek'hule ka har'a ± 5%, ho rarolla bothata ba ho fetoha ha linako tsa selemo lihlahisoa tse tala tsa leoatleng.
•Melemo ea Ke EfeChitosan ?
Tlholisano ea mantlha ea chitosan e tsoa lihlopheng tsa mahala tsa amino le hydroxyl ho ketane ea eona ea limolek'hule, ho etsa "lebokose la lisebelisoa tsa limolek'hule" le ikhethang:
Karabelo e Bohlale:amino protonation e lumella chitosan ho qhibiliha sebakeng se nang le asiti, ho fihlela tokollo e laoloang ke pH (joalo ka ho lokolloa ha moriana o thibelang mofetše doxorubicin ho pH 5.0 tikolohong ea tumor ke makhetlo a 7.3 ho feta a tikoloho ea 'mele);
Biological Adhesion:qoso e ntle e kopanya le tefiso e mpe ea mucosa ho lelefatsa nako ea ho boloka lithethefatsi ka molomong oa molomo le pampitšana ea mala, 'me ho khomarela mucosal ho eketseha ka makhetlo a 3 ka mor'a phetoho ea thiolation;
Ecological Synergy:Chitosan e ka senyeha ka ho feletseng ke lysozyme (sampole e phahameng ea deacetylation e lahleheloa ke boima ba 78% ka lihora tse 72), 'me lihlahisoa tsa ho senyeha li kenya letsoho ho potoloha mobu oa carbon le naetrojene.
Mokhoa oa Antibacterial o Tumme Haholo-holo:chitosan e tlaase ea molek'hule e senya botšepehi ba lera la baktheria, 'me bophara ba sebaka sa thibelo bakeng sa Escherichia coli le Staphylococcus aureus ke 13.5mm; matla a eona a antioxidant a ka boela a fokotsa oksijene e sebetsang e hlahisoang ke khatello ea meriana e bolaeang likokoanyana, ho fokotsa boemo ba malondialdehyde ba spinach e phekoloang ka chlorpyrifos ka 40%.
•Kopo ea Ke EfeChitosan?
1. Biomedicine: Ho tloha ho Sutures Ho ea ho Mrna Vaccine Guardians
Mokhoa oa ho fana ka bohlale: Ts'ebetso ea phetisetso ea CS/pDNA nanocomplex ke litaelo tsa 2 tsa boholo bo phahameng ho feta tsa liposomes, ho fetoha thatohatsi e ncha ea liphatsa tsa lefutso tse se nang kokoana-hloko;
Ho lokisa maqeba: Gel ea motsoako oa Ganoderma lucidum chitosan-glucan e khutsufatsa nako ea ho kopanya ka 50%, 'me sebopeho sa porous se nang le mahlakore a mararo se potlakisa ho tsosolosoa ha lisele tsa granulation;
Botsitso ba ente: Setsi sa tšireletso se omisitsoeng sa Chitosan se etsa hore sekhahla sa ts'ebetso ea ente ea mRNA e fete 90% mochesong oa kamore, ho rarolla bothata ba lipalangoang tse batang.
2. Temo e Tala: Senotlolo sa Tikoloho ho Fokotsa Tšebeliso ea Manyolo
Chitosanmenontsha e koaetsoeng e laoloang (CRFs) e eketsa ts'ebetso ka mekhoa e meraro:
Ho lokolloa ho lebeletsoeng: Graphene oxide/chitosan nanofilms e tsoela pele ho lokolla naetrojene ka matsatsi a 60 mobung o nang le asiti, 'me sekhahla sa tšebeliso se phahame ka 40% ho feta sa urea e koahetsoeng ke sebabole;
Ho hanyetsa khatello ea lijalo: Ho etsa hore limela li kopane le chitinase, chai ea tamati e eketsehile ka 22%, ha e ntse e fokotsa sekhahla sa tlhahiso ea O₂⁻;
Ntlafatso ea mobu: Eketsa litaba tsa manyolo ka makhetlo a 1.8, eketsa sechaba sa actinomycete ka makhetlo a 3, 'me u theole ka botlalo matsatsing a 60 ntle le masalla.
3. Sephutheloana sa Lijo: Phetoho ea Polokelo ea Filimi e Kopanetsoeng ea Likokoanyana tsa Protein
Sehlopha sa boqapi sa Sekolo sa Machaena sa Mahlale a Temo se kopanechitosane nang le protheine ea seboko sa lijo le propolis e ntšitsoeng ethanol:
Lisebelisoa tsa mechine: matla a matla a eketseha ka 200%, 'me mokoallo oa mouoane oa metsi o fihlile ho 90% ea lifilimi tse thehiloeng ho petroleum;
Ts'ebetso ea antibacterial: sekhahla sa antibacterial sa libaktheria tse senyang fragola se feta 99%, bophelo ba sethala bo ile ba atolosoa ho fihlela matsatsi a 14, mme sekhahla sa biodegradation e bile 100%.
4. Textile Printing le Dyeing: Tharollo ea Tlhaho Bakeng sa Antistatic Polyester
Ka kalafo ea phokotso ea alkali, likoting le lihlopha tsa carboxyl li thehoa holim'a polyester. Kamora hore chitosan e hokahane le tartaric acid:
Antistatic ea ka ho sa feleng: ho hanyetsa ho fokotsehile ho tloha ho 10¹²Ω ho ea ho 10⁴Ω, 'me mongobo o boela o sala ho 6.56% ka mor'a ho hlatsoa ha 30;
Thekiso ea tšepe e boima: Cu²⁰ chelation e sebetsang hantle ha ho hatisoa le ho daea metsi a litšila ke >90%, 'me litšenyehelo ke 1/3 ea resin ea maiketsetso.
•LITJHA TSE KHABANE tsa ho fana ka boleng bo holimoChitosanPhofo
Nako ea poso: Jul-03-2025
