Arbutin yog tau los ntawm reacting qabzib nrog hydroquinone muab rho tawm los ntawm bilberry nplooj, cranberry nplooj, pear nplooj, dais berries, thiab blueberries, uas yog ib txwm nyob rau hauv toj siab. Cov qauv molecular ntawm arbutin yog cov hydroquinone txuas nrog cov piam thaj. Arbutin inhibits qhov kev ua ntawm tyrosinase, uas yog koom tes rau hauv cov txheej txheem ntawm melanin synthesis nyob rau hauv daim tawv nqaij, suppresses ntau heev melanin tsub zuj zuj, txo pigmentation, pab kom txawm tawm ntawm daim tawv nqaij laus, thiab tiv thaiv me ntsis thiab freckles. Arbutin tau muab faib ua α-hom thiab β-hom nyob ntawm seb cov piam thaj thiab hydroquinone txuas li cas.
β-Arbutinyog tsim los ntawm chemical synthesis. β-Arbutin muaj cov qauv qis dua li α-arbutin thiab yooj yim tawg los ntawm UV rays thiab cua sov. Vim yog cov yam ntxwv no, nws raug nquahu kom siv cov khoom tu tawv nqaij nrog β-arbutin tsuas yog thaum hmo ntuj, thiab thaum nruab hnub, nws raug nquahu kom siv nrog tshuaj pleev thaiv hnub. Nws kuj muaj qhov tsis zoo ntawm qhov yooj yim degraded los ntawm intracellular enzymes vim tsis tshua muaj intracellular stability piv rau α-arbutin. Nws yog α-arbutin uas them nyiaj rau qhov tsis txaus no.
- CAS Nr .: 497-76-7
- EC Tus lej: 207-850-3
- Cov mis mos molecular: C12H16O7
α-Arbutintsuas yog tsim los ntawm enzymatic synthesis (microbial fermentation). Tsis zoo li β-arbutin, nws tiv taus lub teeb thiab kub, yog li nws tuaj yeem siv nruab hnub thiab hmo ntuj thiab ua haujlwm ruaj khov hauv lub xov tooj ntawm tes, ua rau nws zoo dua thiab tsis muaj tshuaj lom. Los ntawm kev them nyiaj rau qhov tsis txaus ntawm β-arbutin, nws muaj ntau yam ruaj khov thiab tsis yooj yim tawg. α-Arbutin yog kwv yees li 10 npaug ntau dua li β-arbutin hauv inhibiting melanogenesis. α-Arbutin inhibits tyrosinase kom txawm tawm ntawm daim tawv nqaij thiab txo cov pob txha laus, pob txuv nti, liab liab tom qab blemishes, thiab ntau dua. Nws kuj muaj antiseptic thiab anti-inflammatory zog.
- CAS Nr .: 84380-01-8
- EC No.: 617-561-8
- IB/ELINCS: 440-470-8
- Cov mis mos molecular: C12H16O7
Dab tsi yog qhov zoo sib xws ntawm Arbutin thiab Alpha Arbutin?
- Arbutin thiab alpha arbutin yog glycosylated hydroquinones.
- Alpha Arbutin yog ib qho ntawm ob hom arbutin.
- Ob leeg yog muab los ntawm tej yam ntuj tso.
- Lawv inhibit tyrosinase kev ua haujlwm.
- Yog li, lawv inhibit qhov tsim ntawm melanin.
- Ob hom no txo cov tawv nqaij pigmentation los ntawm UV hluav taws xob los ntawm lub hnub.
- Tsis tas li ntawd, arbutin thiab alpha arbutin ua raws li daim tawv nqaij-lightening agents.
Qhov txawv ntawm Arbutin thiab Alpha Arbutin yog dab tsi?
Arbutin yog glycosylated hydroquinone uas inhibits tyrosinase, tiv thaiv kev tsim ntawm melanin, thaum alpha-arbutin yog ib qho ntawm ob hom arbutin uas tiv taus tshav kub, qhia ntau lub teeb ruaj khov thiab dej solubility siab dua li lwm daim ntawv. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm arbutin thiab alpha arbutin. Kev nyab xeeb concentration rau kev siv arbutin nyob rau hauv cov nqe lus ntawm alpha daim ntawv yog 2%, thiab beta daim ntawv yog 7%.
Cov nram qab no infographic nthuav tawm qhov sib txawv ntawm arbutin thiab alpha arbutin hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
arbutin ua haujlwm li cas ntawm koj cov tawv nqaij?
Raws li peb paub, ib zaug ntawm daim tawv nqaij melanocytes raug txhawb los ntawm sab nraud ultraviolet lub teeb, lawv yuav tsim tyrosinase, uas ua ke nrog tyrosine hauv lub cev los tsim dopamine, thiab thaum kawg tsim melanin los ntawm REDOX, decomposition thiab decarboxylation cov tshuaj tiv thaiv. Melanin, lub luag hauj lwm rau cov xim ntawm daim tawv nqaij, ces thauj mus rau lub basal txheej, dermis, epidermis thiab lwm yam txheej txheem ntawm daim tawv nqaij, thiab ces nrog lub dander los yog cov ntshav ncig system tawm. Txawm li cas los xij, thaum muaj melanin ntau dhau lawm, nws tsis tuaj yeem metabolized los ntawm lub cev yuav precipitate nyob rau hauv lub epidermal txheej los ua ib tug stain. Qee cov khoom xyaw xws li hydroquinone (hydroquinone), arbutin, phenylethylresorcinol, thiab azelaic acid tuaj yeem thaiv kev khi ntawm tyrosinase rau tyrosine thiab inhibit melanin.
Arbutin khi zoo nrog enzyme tyrosinase uas catalyses cov synthesis ntawm melanin. Nws yog lwm txoj hauv kev zoo rau hydroquinone (uas yog txwv tsis pub nyob hauv Europe thiab Australia) tab sis maj mam rau ntawm daim tawv nqaij. Tsis zoo li hydroquinone, uas yog cov khoom muaj zog ntawm daim tawv nqaij uas tuaj yeem ua rau tawv nqaij tawv heev, arbutin yog lwm txoj hauv kev nyab xeeb thiab ntuj. Hauv luv luv, beta arbutin ua haujlwm los ntawm kev sib tw inhibiting tyrosine. Qhov no tiv thaiv melanin ntau lawm, ua rau koj cov tawv nqaij tshwm sib zog thiab ci dua - nrog rau fading hyperpigmentation, hnub nyoog me ntsis, tshav pob thiab pob txuv nti.
Post lub sij hawm: Lub Xya hli ntuj-11-2023
