Qhov sib txawv ntawm α-arbutin thiab β-arbutin

α-arbutinThiab β-arbutin yog ob qho kev sib haum xeeb sib txuas lus uas feem ntau siv hauv cov khoom lag luam tawv nqaij rau lawv cov tawv nqaij-lighten thiab brightening cuam tshuam. Thaum lawv koom nrog ib qho qauv zoo sib xws

Kev tsim qauv, ob qho tib si α-arbutin thiab β-arbutin yog glycosides ntawm hydroquinone, uas txhais tau tias lawv muaj cov piam thaj ua ke txuas nrog lub hydroquinone molecule. Cov txheej txheem sib xws no tso cai rau ob qho tib si sib txuas ua ke kom inhibit lub enzyme tyrosinase, uas yog koom nrog hauv Melanin ntau lawm. Los ntawm inhibiting tyrosinase, cov tebchaw no tuaj yeem pab txo cov melanin, ua rau lub teeb ci dua thiab ntau dua txawm tias ntau daim tawv nqaij.

Qhov sib txawv thawj ntawm kev sib txawv ntawm α-arbutin thiab β-arbutin lus dag nyob rau hauv txoj hauj lwm ntawm glycosidic txoj kev sib khi ntawm cov piam thaj thiab hydroquinone moieties:

lus-arbutin: Hauv Arbutin, Glycosidic Bonds tau txuas rau ntawm Alpha txoj hauj lwm ntawm Hydroquinone nplhaib. Txoj haujlwm no yog ntseeg kom txhim kho kev ruaj khov thiab solubility ntawm α-arbutin, ua rau nws zoo dua rau daim duab daim ntawv thov daim tawv nqaij. Glycosidic sib khi kuj tseem txo qhov peev xwm rau oxidation ntawm hydroquinone, uas tuaj yeem ua rau kev tsim cov duab tsaus uas xav txog cov tawv nqaij uas xav tau.

β-arbutin: hauv β-arbutin, glycosidic khi tau txuas rau ntawm txoj haujlwm beta ntawm Hydroquinone nplhaib. Thaum β-arbutin kuj tseem ua tau zoo nyob rau hauv kev ua pa rau Tyrosinase, nws tuaj yeem tsis ruaj khov dua α-arbutin thiab ntau dua nquag mus rau oxidation. Qhov oxidation no tuaj yeem ua rau muaj kev tsim ntawm cov xim av xim av uas tsis tshua xav tau rau cov tawv nqaij tawv.

Vim nws muaj kev ruaj khov zoo thiab solubility, α-arbutin feem ntau suav hais tias yog qhov ua tau zoo dua thiab nyiam cov ntawv thov kev lag luam tawv. Nws ntseeg tau tias xa cov tawv nqaij zoo dua-teeb tau tshwm sim thiab tsis yog qhov ua rau tsis muaj teeb meem lossis cov kev mob tshwm sim tsis txaus.

Thaum txiav txim siab cov khoom lag luam tawv tawv uas muajarbutin, Nws yog ib qho tseem ceeb kom nyeem cov ntawv lo rau cov khoom muaj cov khoom siv los txiav txim siab seb puas muaj α-arbutin lossis β-arbutin yog siv. Thaum ob qho tib si sib txuas no tuaj yeem ua tau zoo, α-arbutin feem ntau yog kev xaiv zoo dua vim nws txoj kev ruaj khov thiab muaj feem.

Nws tseem yog qhov tseem ceeb kom nco ntsoov tias cov tawv nqaij sib txawv tuaj yeem sib txawv. Qee tus neeg yuav pom cov kev mob tshwm sim xws li cov tawv nqaij khaus lossis liab liab thaum siv cov khoom lag luam uas muaj arbutin. Raws li nrog cov khoom siv tawv nqaij tawv, nws tau pom zoo kom ua qhov khoom lag luam ua ntej thov cov khoom lag luam rau tus kws kho mob dermatologist yog tias koj muaj kev txhawj xeeb txog kev tawm tsam.

Hauv kev xaus, ob qho tib si α-arbutin thiab β-arbutin yog glycosides ntawm hydroquinone siv rau lawv cov tawv nqaij teeb meem. Txawm li cas los xij, α-arbutin txoj hauj lwm ntawm Glycosidic txoj hauj lwm muab rau nws ntau dua qhov kev xaiv tawv nqaij ua rau cov tawv nqaij tawv kom txo qis hyperpigmentation thiab ua tiav cov tawv nqaij tawv.