Tej zaum koj yuav paub me ntsis txog kojic acid, tab sis kojic acid kuj muaj lwm cov neeg hauv tsev neeg, xws li kojic dipalmitate.Kojic acid dipalmitate yog qhov nrov tshaj plaws kojic acid whitening tus neeg sawv cev hauv khw tam sim no.Ua ntej peb paub kojic acid dipalmitate, cia peb kawm ua ntej txog nws cov thawj coj - "kojic acid".
Kojic Acidyog tsim los ntawm fermentation thiab purification ntawm qabzib los yog sucrose nyob rau hauv qhov kev txiav txim ntawm kojise.Nws cov txheej txheem ntxuav hniav dawb yog inhibit qhov kev ua ntawm tyrosinase, inhibit qhov kev ua ntawm N-hydroxyindole acid (DHICA) oxidase, thiab thaiv cov polymerization ntawm dihydroxyindole (DHI).Nws yog ib qho tsis tshua muaj neeg dawb dawb uas tuaj yeem cuam tshuam ntau yam enzymes tib lub sijhawm.
Tab sis kojic acid muaj lub teeb, tshav kub thiab hlau ion instability, thiab tsis yooj yim rau absorbed los ntawm daim tawv nqaij, yog li kojic acid derivatives tau los ua.Cov kws tshawb fawb tau tsim ntau yam kojic acid derivatives los txhim kho kev ua haujlwm ntawm kojic acid.Kojic acid derivatives tsis tsuas yog muaj tib lub tshuab ntxuav hniav dawb li kojic acid, tab sis kuj muaj kev ua tau zoo dua kojic acid.
Tom qab esterification nrog kojic acid, lub monoester ntawm kojic acid tuaj yeem tsim tau, thiab lub diester tuaj yeem tsim.Tam sim no, qhov nrov tshaj plaws kojic acid whitening tus neeg sawv cev nyob rau hauv kev ua lag luam yog kojic acid dipalmitate (KAD), uas yog ib tug diesterified derivative ntawm kojic acid.Kev tshawb fawb qhia tau hais tias cov nyhuv whitening ntawm KAD compounded nrog glucosamine derivatives yuav nce exponentially.
Kev tu tawv nqaij ua haujlwm ntawm kojic dipalmitate
1) Whitening: Kojic acid dipalmitate muaj txiaj ntsig zoo dua li kojic acid hauv inhibiting kev ua haujlwm ntawm tyrosinase hauv daim tawv nqaij, yog li inhibiting kev tsim ntawm melanin, uas muaj txiaj ntsig zoo rau cov tawv nqaij dawb thiab tshuaj pleev thaiv hnub.
2) Kev tshem tawm freckle: Kojic acid dipalmitate tuaj yeem txhim kho daim tawv nqaij pigmentation, thiab tuaj yeem tiv thaiv hnub nyoog me ntsis, ncab cov cim, freckles thiab pigmentation.
Dipalmitate cosmetic compounding phau ntawv qhia
Kojic acid dipalmitateyog ib qho nyuaj rau ntxiv rau cov mis thiab yooj yim rau tsim crystal nag lossis daus.Txhawm rau daws qhov teeb meem no, nws raug nquahu kom ntxiv isopropyl palmitate lossis isopropyl myristate rau cov roj theem uas muaj kojic dipalmitate, kub lub roj theem mus rau 80 ℃, tuav rau 5 feeb kom txog thaum kojic dipalmitate yog yaj tag, ces ntxiv cov roj theem rau. dej theem, thiab emulsify li 10 feeb.Feem ntau, tus nqi pH ntawm cov khoom kawg tau txais yog li 5.0-8.0.
Cov tshuaj pom zoo ntawm kojic dipalmitate hauv tshuaj pleev ib ce yog 1-5%;Ntxiv 3-5% hauv cov khoom ua kom dawb.
Post lub sij hawm: Oct-21-2022