Waxaa laga yaabaa inaad wax yar ka taqaan kojic acid, laakiin kojic acid sidoo kale waxay leedahay xubno kale oo qoyska ka mid ah, sida kojic dipalmitate. Kojic acid dipalmitate waa wakiilka cadaynta kojic acid ee ugu caansan suuqa hadda. Kahor intaanan ogaan kojic acid dipalmitate, aan marka hore wax ka baranno kii ka horreeyay - "kojic acid".
Asiidh Kojicwaxaa lagu soo saaraa halsano iyo nadiifinta gulukooska ama sukrose iyadoo la adeegsanayo kojise. Habka cadaynta waa in la joojiyo dhaqdhaqaaqa tyrosinase, la joojiyo dhaqdhaqaaqa oxidase-ka N-hydroxyindole (DHICA), iyo in la joojiyo polymerization-ka dihydroxyindole (DHI). Waa wakiil naadir ah oo keliya oo caddeyn kara ensaymo badan isku mar.
Laakiin asiidhka kojic wuxuu leeyahay xasillooni darro iftiin, kulayl iyo bir ah, mana fududa in maqaarku nuugo, sidaas darteed waxaa soo baxay wax soo saar ka yimid asiidhka kojic. Cilmi-baarayaashu waxay sameeyeen waxyaabo badan oo ka yimid asiidhka kojic si ay u horumariyaan waxqabadka asiidhka kojic. Waxyaabaha ka soo baxay asiidhka Kojic ma aha oo kaliya inay leeyihiin habka cadaynta ee la mid ah asiidhka kojic, laakiin sidoo kale waxay leeyihiin waxqabad ka wanaagsan asiidhka kojic.
Ka dib marka la isku daro kojic acid, monoester-ka kojic acid waa la samayn karaa, diester-kuna sidoo kale waa la samayn karaa. Waqtigan xaadirka ah, wakiilka cadaynta kojic acid ee ugu caansan suuqa waa kojic acid dipalmitate (KAD), kaas oo ah derivative disterified oo ka soo jeeda kojic acid. Cilmi-baaristu waxay muujinaysaa in saameynta cadaynta ee KAD oo lagu daray glucosamine derivatives ay si weyn u kordhi doonto.
Waxtarka daryeelka maqaarka ee kojic dipalmitate
1) Cadaynta: Kojic acid dipalmitate wuxuu ka waxtar badan yahay kojic acid marka loo eego joojinta dhaqdhaqaaqa tyrosinase ee maqaarka, sidaas darteed wuxuu joojiyaa sameynta melanin, taasoo saameyn wanaagsan ku leh maqaarka cadaynta iyo qoraxda qorraxda.
2) Ka saarista Freckle: Kojic acid dipalmitate waxay hagaajin kartaa midabka maqaarka, waxayna la dagaallami kartaa dhibcaha da'da, calaamadaha fidinta, finan iyo midabka guud.
Tilmaamaha isku-darka qurxinta ee Dipalmitate
Kojic acid dipalmitateway adag tahay in lagu daro qaacidada waana mid si fudud loo samayn karo roob kiristaal ah. Si loo xalliyo dhibaatadan, waxaa lagu talinayaa in lagu daro isopropyl palmitate ama isopropyl myristate wejiga saliidda ee ka kooban kojic dipalmitate, lagu kululeeyo wejiga saliidda ilaa 80 ℃, la hayo 5 daqiiqo ilaa kojic dipalmitate uu gebi ahaanba milmo, ka dibna lagu daro wejiga saliidda wejiga biyaha, oo lagu daro emulsify ilaa 10 daqiiqo. Guud ahaan, qiimaha pH ee badeecada ugu dambeysa ee la helay waa qiyaastii 5.0-8.0.
Qiyaasta lagu taliyay ee kojic dipalmitate ee qurxinta waa 1-5%; Ku dar 3-5% alaabada caddeynta.
Waqtiga boostada: Oktoobar-21-2022