amakuru

Ushobora kuba uzi bike kuri aside kojic, ariko aside kojic ifite n'abandi bagize umuryango, nka kojic dipalmitate. Aside kojic dipalmitate ni yo aside kojic ikunzwe cyane mu kugurisha aside kojic ku isoko muri iki gihe. Mbere yuko tumenya aside kojic dipalmitate, reka tubanze tumenye ibyayibanjirije - "aside kojic".
aside ya Kojicikorwa no gutunganya no gutunganya isukari cyangwa sucrose hakoreshejwe kojise. Uburyo bwayo bwo kweza ni ukubuza imikorere ya tyrosinase, kubuza imikorere ya aside N-hydroxyindole (DHICA) oxidase, no kubuza polymerization ya dihydroxyindole (DHI). Ni ikintu kidasanzwe cyo kweza gishobora kubuza enzymes nyinshi icyarimwe.

Ariko aside kojic ifite urumuri, ubushyuhe n'ubw'icyuma bidahinduka, kandi ntabwo byoroshye kwinjiza mu ruhu, bityo habayeho ibintu bikomoka kuri aside kojic. Abashakashatsi bakoze ibintu byinshi bikomoka kuri aside kojic kugira ngo bongere imikorere ya aside kojic. Ibikomoka kuri aside kojic ntabwo bigira uburyo bumwe bwo kwera nk'uko aside kojic ibikora, ahubwo bigira n'imikorere myiza kurusha aside kojic.
Nyuma yo gupima aside kojic, monoester ya aside kojic ishobora gukorwa, kandi diester nayo ishobora gukorwa. Kuri ubu, ikintu kizwi cyane ku isoko cyo kuzunguza aside kojic ni aside dipalmitate (KAD), ikaba ari ikintu gikomoka kuri aside kojic. Ubushakashatsi bwerekana ko ingaruka zo kuzunguza za KAD zivanze n'ibikomoka kuri glucosamine ziziyongera cyane.

Ingufu za kojic dipalmitate mu kwita ku ruhu
1) Kweza: Kojic aside dipalmitate ifite akamaro kurusha kojic aside mu kubuza imikorere ya tyrosinase mu ruhu, bityo ikabuza ikorwa rya melanin, igira ingaruka nziza ku kweza uruhu no ku ruhu.
2) Gukuraho udukoko: Kojic aside dipalmitate ishobora kunoza ibara ry'uruhu, kandi ikarwanya uduheri tw'imyaka, ibimenyetso byo kumera nabi, udukoko two kumera nabi ndetse n'ibara rusange.

Ubuyobozi bw'imvange y'ubwiza bwa Dipalmitate
aside ya Kojic dipalmitateBiragoye kongeramo muri formula kandi byoroshye gukora imvura ya kristu. Kugira ngo iki kibazo gikemuke, ni byiza kongeramo isopropyl palmitate cyangwa isopropyl myristate mu gice cy'amavuta kirimo kojic dipalmitate, gushyushya igice cy'amavuta kugeza kuri 80 ℃, kubika iminota 5 kugeza kojic dipalmitate ishongeshejwe burundu, hanyuma ukongeramo igice cy'amavuta mu gice cy'amazi, hanyuma ukabivanga mu minota 10. Muri rusange, agaciro ka pH k'umusaruro wa nyuma kabonetse ni hagati ya 5.0-8.0.
Igipimo cya kojic dipalmitate gisabwa mu kwisiga ni 1-5%; Ongeraho 3-5% mu bikoresho byo kwera.