I-Ginkgo biloba extract(GBE) isiqephu esenziwe ngamaqabunga omisiwe e-Ginkgo biloba, isitshalo somndeni wakwaGinkgo, esinezingxenye zamakhemikhali eziyinkimbinkimbi. Njengamanje, izinhlobo ezingaphezu kuka-160 zezinhlanganisela ziye zahlukaniswa kuwo, okuhlanganisa ama-flavonoid, ama-terpenoid lactones, ama-polypentenols, ama-organic acid, njll. Phakathi kwazo, ama-flavonoid nama-terpene lactones ayizinkomba ezivamile zokulawulwa kwekhwalithi ye-GBE namalungiselelo ayo, futhi ziyizingxenye eziyinhloko ezisebenzayo ze-GBE. Angathuthukisa ukujikeleza kwenhliziyo nemithambo yobuchopho, akhiphe ama-radicals angenawo umoya-mpilo, futhi ayasebenza ku-hypertension, i-arteriosclerosis, kanye nobuchopho obunzima. I-infarction nezinye izifo zenhliziyo nemithambo yegazi zinemiphumela engcono yokwelapha. Amalungiselelo anjengamaqabunga e-ginkgo, amaphilisi kanye namaphilisi aconsayo enziwe nge-GBE njengezisetshenziswa zokusetshenziswa kuyizithasiselo nemithi edliwayo ethandwa kakhulu eYurophu nase-United States.
Ama-Flavonoid: ikakhulukazi ahlanganisa ama-flavonoid nama-glycosides awo, ama-diflavonoid, ama-flavonols nama-glycosides awo, ama-anthocyanins, njll., anokuqukethwe okungu-2.5% kuya ku-5.91%. Ama-Flavonoid anomsebenzi oqinile wokulwa ne-antioxidant, angasusa ama-radicals angenawo umoya-mpilo futhi avimbele i-lipid peroxidation. Phakathi kwazo, i-quercetin, i-kaempferol ne-isorhamnetin ingaphinda ikhulise ukugcwala kwe-Ca2+ kumaseli e-vascular endothelial futhi ikhuthaze CHA Ukuhlanganiswa nokukhululwa, ngaleyo ndlela kuxegise imithambo yegazi futhi kuthuthukise ukujikeleza kwenhliziyo nemithambo ye-cerebrovascular.
Ama-lactone e-Terpenoid: Kunangu-8 esewonke, ahlukaniswe ama-ginkgolides e-diterpenoid kanye ne-sesquiterpenoid bilobalide ngokuya ngesakhiwo sawo. Ama-Ginkgolides ahlanganisa ama-Ginkgolides A, B, C, J, K, L, kanye no-M, anomsebenzi wesici esisebenza nge-antiplatelet. Ama-lactone e-Terpenoid abandakanyeka enqubweni yokuqothula ama-anion e-superoxide, angavikela ukwakheka kwamangqamuzana, futhi angasetshenziselwa ukwelapha izifo ezifana nesifo sohlangothi kanye nesifo i-Alzheimer's. Ukuhlukaniswa nokulawulwa kwekhwalithi ye-Ginkgo biloba terpenoid lactones sekuphenduke indawo eshisayo ocwaningweni lwasekhaya nolwangaphandle.
Ama-Polypentenols: okwamanje atholakala kuphela emaqabunga e-Ginkgo biloba. Kuyinhlanganisela ende-enamayunithi e-isopentenyl angu-10-20 axhumeke ngokomugqa kanye nesakhiwo setheminali ye-isopentenol, okuhlanganisa ne-cis ne-trans structures, futhi isetshenziselwa ukuthuthukiswa komuthi ikusasa eliqhakazile.
Ezinye izithako ezisebenzayo: I-Ginkgo ekhishwe futhi iqukethe ama-polysaccharides, ama-phenols, ama-organic acid, ama-amino acid, izakhi zokulandelela, njll.
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