Malic Acid CAS: 6915-15-7 Chaw Tsim Khoom Siv

Malic acid, HOOCCH(OH).CH2COOH, tseem hu ua hydroxysuccinic acid, yog ib yam khoom tsis muaj xim. Nws yaj tau hauv dej thiab cawv. Malic acid muaj ob hom optically active thiab racemic sib xyaw. Nws siv rau hauv tshuaj thiab pom muaj nyob rau hauv txiv apples thiab lwm yam txiv hmab txiv ntoo. Lub isomer uas tshwm sim ntuj yog L-form uas tau pom muaj nyob rau hauv txiv apples thiab ntau lwm yam txiv hmab txiv ntoo thiab nroj tsuag. malic acid yog qhov thib peb me tshaj plaws alpha hydroxy acid hauv qhov loj me molecular. Txawm hais tias nws siv rau hauv ntau yam khoom siv pleev ib ce, tshwj xeeb tshaj yog cov uas qhia txog "txiv hmab txiv ntoo acid" thiab feem ntau tsim los rau kev tiv thaiv kev laus, tsis zoo li glycolic thiab lactic acids, nws cov txiaj ntsig ntawm daim tawv nqaij tsis tau kawm ntau. Qee tus neeg tsim qauv xav tias nws nyuaj rau ua haujlwm nrog, tshwj xeeb tshaj yog thaum piv rau lwm yam AHAs, thiab nws tuaj yeem ua rau khaus me ntsis. Nws tsis tshua siv ua tib yam AHA hauv ib yam khoom. Nws pom muaj nyob rau hauv txiv apples. Malic acid siv rau hauv cov tshuaj ua ib qho acidulant dav dav. Nws muaj me ntsis saj txiv apple thiab siv ua tus neeg sawv cev tsw qab los npog qhov iab thiab muab qhov iab. Malic acid kuj tseem siv ua lwm txoj hauv kev rau citric acid hauv cov hmoov effervescent, cov tshuaj ntxuav qhov ncauj, thiab cov ntsiav tshuaj ntxuav hniav.