Lus piav qhia luv luv:
CAS Nr .: 117-39-5
Cov mis mos molecular: C15H10O7
Molecular Luj: 302.24
Chemical structure:
| Cov ntaub ntawv yooj yim | |
| Khoom npe | Quercetin |
| Qib | Khoom Noj lossis Kev Kho Mob Qib |
| Qhov tshwm sim | daj ntsuab zoo hmoov |
| Assay | 95% |
| Txee lub neej | 2 xyoo |
| Ntim | 25kg / nruas |
| Qhov xwm txheej | Txias thiab qhuav qhov chaw |
Kev piav qhia
Lub npe ntawm quercetin tau siv txij li xyoo 1857, uas yog muab los ntawm quercetum (oak hav zoov) tom qab Quercus. Quercetin yog dav pom nyob rau hauv paj, nplooj, thiab txiv hmab txiv ntoo ntawm ntau yam nroj tsuag. Zaub (xws li dos, qhiav, celery, thiab lwm yam), txiv hmab txiv ntoo (xws li txiv apples, strawberries, thiab lwm yam), dej haus (xws li tshuaj yej, kas fes, liab cawu cub, kua txiv hmab txiv ntoo, thiab lwm yam), thiab ntau tshaj 100 hom Suav tshuaj ntsuab (xws li Threevein Aster, roob dawb chrysanthemum, Huai mov, Apocynum, Ginkgo biloba, thiab lwm yam) muaj cov khoom xyaw no.
Siv
1. Nws tuaj yeem siv los ua ib hom tshuaj tiv thaiv antioxidant uas yog siv rau cov roj, dej haus, dej haus txias, cov khoom siv nqaij.
2. Nws muaj cov txiaj ntsig zoo ntawm expectorant, tiv thaiv hnoos, tiv thaiv mob hawb pob thiab tuaj yeem siv rau kev kho mob bronchitis nrog rau kev kho adjuvant ntawm cov kab mob plawv thiab ntshav siab.
3. Nws kuj tseem siv tau los ua cov qauv ntsuas.
Chemical Properties
Nws yog daj koob zoo li crystalline hmoov. Nws muaj qhov zoo thermal stability nrog lub decomposition kub yog 314 ° C. Nws tuaj yeem txhim kho lub teeb pom kev zoo ntawm cov khoom noj xim rau kev tiv thaiv kev hloov pauv ntawm qhov tsw ntawm cov zaub mov. Nws cov xim yuav hloov thaum hlau ion. Nws yog me ntsis soluble hauv dej, soluble hauv alkaline aqueous tov. Quercetin thiab nws cov derivatives yog ib hom flavonoid compound uas muaj dav nyob rau hauv ntau yam zaub thiab txiv hmab txiv ntoo xws li dos, hiav txwv buckthorn, hawthorn, locust, tshuaj yej. Nws muaj cov teebmeem ntawm kev tiv thaiv dawb radical, tiv thaiv oxidation, tiv thaiv kab mob, tiv thaiv kab mob thiab tiv thaiv kev ua xua. Rau daim ntawv thov hauv lard, nws ntau yam tshuaj tiv thaiv antioxidant zoo ib yam nrog BHA lossis PG.
Vim yog ob daim ntawv cog lus ntawm 2,3 txoj hauj lwm nrog rau ob pawg hydroxyl hauv 3 ', 4', nws muaj daim ntawv thov siv los ua cov hlau chelate lossis ua tus receptor ntawm cov pab pawg dawb uas tsim tawm thaum lub sij hawm oxidation txheej txheem ntawm roj. . Hauv qhov no, nws tuaj yeem siv los ua cov tshuaj antioxidants ntawm ascorbic acid lossis roj. Nws kuj muaj cov nyhuv diuretic.
