Waxaa laga yaabaa inaad wax yar ka ogaato kojic acid, laakiin kojic acid sidoo kale waxay leedahay xubno kale oo qoyska ah, sida kojic dipalmitate. Kojic acid dipalmitate waa wakiilka ugu caansan kojic acid ee suuqa hadda. Kahor intaanan ogaanin kojic acid dipalmitate, aan marka hore wax ka barano kuwii ka horeeyay - "kojic acid".
Kojic acidwaxaa lagu soo saaraa halsano iyo nadiifin gulukoos ama sukrose hoos yimaada ficilka kojise. Nidaamkeeda caddeynta waa in la joojiyo dhaqdhaqaaqa tyrosinase, la joojiyo dhaqdhaqaaqa N-hydroxyindole acid (DHICA) oxidase, iyo xannibista polymerization of dihydroxyindole (DHI). Waa wakiilka kaliya ee caddeynta naadir ah kaas oo joojin kara enzymes badan isku mar.
Laakin kojic acid waxa ay leedahay iftiin, kulayl iyo xasilooni darro birta ah, mana fududa in uu maqaarku nuugo, sidaa awgeed waxa soo baxay kojic acid. Cilmi-baarayaashu waxay soo saareen noocyo badan oo kojic acid ah si loo hagaajiyo waxqabadka kojic acid. Aashitada Kojic ma laha oo kaliya habka nadiifinta sida kojic acid, laakiin sidoo kale waxay leeyihiin waxqabad ka wanaagsan kojic acid.
Ka dib markii la nadiifiyo kojic acid, monoester ee kojic acid ayaa la samayn karaa, sidoo kale waxaa la samayn karaa dister. Waqtigan xaadirka ah, wakiilka kojic acid ee ugu caansan suuqa waa kojic acid dipalmitate (KAD), kaas oo ka soo jeeda kojic acid. Cilmi-baaristu waxay muujineysaa in saameynta caddeynta ee KAD ee lagu daray walxaha glucosamine ay si aad ah u kordhi doonto.
Waxtarka daryeelka maqaarka ee kojic dipalmitate
1) Caddaynta: Kojic acid dipalmitate waxa ay ka waxtar badan tahay kojic acid in ay joojiso dhaqdhaqaaqa tyrosinase ee maqaarka, sidaas awgeed waxa ay joojisaa samaynta melanin, taas oo saamayn fiican ku leh caddaynta maqaarka iyo muraayadaha qorraxda.
2) Ka saarida xuubabka: Kojic acid dipalmitate waxay hagaajin kartaa midabaynta maqaarka, waxayna la dagaalami kartaa dhibcaha da'da, calamadaha fidsan, xuubabka iyo midabaynta guud.
Dipalmitate hagaha isku-darka qurxinta
Kojic acid dipalmitateWay adag tahay in lagu daro caanaha oo ay fududahay in la sameeyo roobab crystal ah. Si loo xalliyo dhibaatadan, waxaa lagu talinayaa in lagu daro isopropyl palmitate ama isopropyl myristate marxaladda saliidda ee ay ku jirto kojic dipalmitate, kuleyli wajiga saliidda ilaa 80 ℃, hayso 5 daqiiqo ilaa kojic dipalmitate si buuxda u milmay, ka dibna ku dar wajiga saliidda wajiga biyaha, oo emulsify ilaa 10 daqiiqo. Guud ahaan, qiimaha pH ee alaabta dhamaadka la helay waa qiyaastii 5.0-8.0.
Qiyaasta lagu taliyey ee kojic dipalmitate ee alaabta la isku qurxiyo waa 1-5%; Ku dar 3-5% alaabta la caddeeyo.
Waqtiga boostada: Oct-21-2022