Thaum Lub Ob Hlis 2023, European Union Pawg Saib Xyuas Kev Tshawb Fawb Txog Kev Nyab Xeeb rau Cov Neeg Siv Khoom (SCCS) tau tshaj tawm cov lus pom kawg ntawm kev nyab xeeb ntawmα-arbutinthiabβ-arbutinnyob rau hauv cov tshuaj pleev ib ce, thiab cov nyhuv whitening ntawm lub hnub qub arbutin ib zaug ntxiv ua rau muaj kev txhawj xeeb hauv kev lag luam.
arbutin yog dab tsi?
Arbutin (Arbutin), tseem hu ua arbutin, tshuaj lub npe 4-hydroxyphenyl-D-glucopyranoside, tus txheeb ze molecular hnyav yog 272.25, yog ntuj glycoside los ntawm cov nroj tsuag ntsuab, ntau cov nroj tsuag khov-qhuav, xws li nplej, pear, rhododendraceae dais txiv hmab txiv ntoo nplua nuj. Nyob rau hauv kev daws, dawb aciculate crystals los yog hmoov, Soluble nyob rau hauv dej kub, methanol, ethanol thiab propylene glycol, propylene glycol, insoluble nyob rau hauv ether, chloroform, roj av ether thiab lwm yam kuab tshuaj.
Arbutin tuaj yeem muab faib ua α hom thiab β hom raws li cov qauv sib txawv. α-arbutin yog tshuaj hu ua 4-hydroxyphenyl-α-D-glucopyranoside, thiab β-arbutin yog tshuaj hu ua 4-hydroxyphenyl-β-D-glucopyranoside. Alpha-arbutin yog qhov sib txawv ntawm isomer ntawm β-arbutin, thiab nws daim ntawv cog lus glucoside yog qhov sib txawv ntawm β-arbutin (saib daim duab).
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Post lub sij hawm: Feb-22-2024
