Tērā pea he iti noa iho ōu mōhiotanga mō te waikawa kojic, engari he whānau anō hoki tō te waikawa kojic, pērā i te kojic dipalmitate. Ko te waikawa kojic dipalmitate te mea whakamā i te waikawa kojic rongonui rawa atu i te mākete i tēnei wā. I mua i tō tātou mōhio ki te waikawa kojic dipalmitate, me ako tuatahi tātou mō tōna mua – te "waikawa kojic".
Waikawa KojicKa puta mai i te whakapūkara me te purenga o te hukahuka, te sucrose rānei i raro i te mahi a te kojise. Ko tana tikanga whakama he aukati i te mahi a te tyrosinase, te aukati i te mahi a te N-hydroxyindole acid (DHICA) oxidase, me te aukati i te polymerization o te dihydroxyindole (DHI). He kaihoko whakama kotahi onge ka taea te aukati i ngā whākōkī maha i te wā kotahi.
Engari he mārama, he wera, he koretake hoki ngā katote konganuku o te waikawa kojic, ā, he uaua ki te mimiti e te kiri, nō reira i puta mai ai ngā matū whakaputa waikawa kojic. He maha ngā matū whakaputa waikawa kojic kua whakawhanakehia e ngā kairangahau hei whakapai ake i te mahi a te waikawa kojic. Ehara i te mea he rite tonu te tikanga whakama o ngā matū whakaputa waikawa kojic ki te waikawa kojic, engari he pai ake hoki te mahi i te waikawa kojic.
I muri i te whakapūtanga ki te waikawa kojic, ka taea te hanga i te monoester o te waikawa kojic, ā, ka taea hoki te hanga i te diester. I tēnei wā, ko te kaihoko whakamā waikawa kojic rongonui i te mākete ko te kojic acid dipalmitate (KAD), he matū whakapūtanga diesterified o te waikawa kojic. E whakaatu ana ngā rangahau ka piki haere te pānga whakamā o te KAD me ngā matū whakapūtanga glucosamine.
Te whai huatanga o te kojic dipalmitate mō te tiaki kiri
1) Te whakama: He pai ake te whai huatanga o te waikawa kojic dipalmitate i te waikawa kojic ki te aukati i te mahi a te tyrosinase i roto i te kiri, ā, ka aukati i te hanganga o te melanin, he pānga pai ki te whakama i te kiri me te whakamahi i te hinu ārai rā.
2) Te tango i ngā ira: Ka taea e te waikawa Kojic dipalmitate te whakapai ake i te tae kiri, ā, ka taea hoki te whawhai ki ngā ira koroheketanga, ngā tohu totoro, ngā ira me te tae whānui.
He aratohu whakakotahitanga whakapaipai Dipalmitate
Te waikawa kojic dipalmitateHe uaua ki te tāpiri ki te tauira, ā, he ngāwari hoki ki te hanga i te waihanga tioata. Hei whakaoti i tēnei raruraru, me tāpiri te isopropyl palmitate, te isopropyl myristate rānei ki te wāhanga hinu kei roto ko te kojic dipalmitate, whakamahanahia te wāhanga hinu ki te 80 ℃, pupuri mō te 5 meneti kia memeha rawa te kojic dipalmitate, kātahi ka tāpirihia te wāhanga hinu ki te wāhanga wai, ka whakaemulsified mō te 10 meneti pea. Ko te tikanga, ko te uara pH o te hua whakamutunga e whiwhihia ana he 5.0-8.0 pea.
Ko te horopeta e taunakitia ana mō te kojic dipalmitate i roto i ngā mea whakapaipai he 1-5%; Tāpirihia te 3-5% ki ngā hua whakama.
Wā tuku: Oketopa-21-2022