I. Cov ntaub ntawv dav dav
Malic acid yog hydroxydicarboxylic acid uas pom nyob rau hauv txhua hom ntawm lub neej thiab tshwm sim ib txwm muaj li L-enantiomer. Nws yuav tsum tsis txhob tsis meej pem nrog cov txiv neej thiab malonic acids. L-Malic acid muab ntau cov txiv hmab txiv ntoo, tshwj xeeb tshaj yog txiv apples, lawv cov yam ntxwv tsw.
Maleic acid lossis cis-butenedioic acid yog cov organic compound uas yog dicarboxylic acid nrog ob pawg carboxyl. Nws cov qauv tshuaj yog HO₂CCH=CHCO₂H. Nws yog cis isomer ntawm butenedioic acid, whereas fumaric acid yog trans isomer.
Cov hauv qab no yog cov chaw siv ntawm cov khoom:
II. Chemical Structures
Malic acid: Cov tshuaj formula yog C₄H₆O₅. Muaj ob pawg carboxyl (-COOH) thiab pawg hydroxyl (-OH).
Maleic acid: Cov tshuaj formula yog C₄H₄O₄. Muaj ob pawg carboxyl txuas rau ob - cov pa roj carbon monoxide -carbon saw.
III. Daim ntawv thov saj thiab zaub mov
Malic acid: Muaj ib qho tart saj thiab yog dav siv los ua khoom noj khoom haus ntxiv rau flavoring thiab acidity tswj hauv cov khoom qab zib, dej haus, thiab cov zaub mov tiav. Pom muaj nyob rau hauv txiv hmab txiv ntoo xws li txiv apples.
Maleic acid: Tsis siv los ua zaub mov ntxiv rau saj. Feem ntau yog siv rau hauv cov ntawv thov kev lag luam thiab tsis yog rau kev noj vim muaj peev xwm toxicity.
Cov hauv qab no yog cov chaw siv ntawm cov khoom:
IV. Kev lag luam thiab kev siv tshuaj pleev ib ce
Malic acid: Siv hauv kev lag luam khoom noj khoom haus, kev lag luam tshuaj pleev ib ce (hauv cov tawv nqaij thiab cov khoom tu plaub hau xws li cov tshuaj pleev ib ce, tshuaj zawv plaub hau, pob txuv thiab tiv thaiv- cov khoom lag luam laus), thiab ua cov tshuaj chelating hauv qee cov txheej txheem tshuaj.
Maleic acid: Feem ntau yog siv rau hauv kev tsim cov khoom siv tsis zoo polyester resins, plasticizers, thiab lwm yam khoom siv tshuaj. Kuj tseem siv rau hauv kev tsim cov dyes thiab kws tshuaj.
V. Biological Functions (Malic Acid nkaus xwb)
Nws tsim cov tshuaj lom neeg lub zog uas yog qhov tseem ceeb rau kev tswj hwm lub zog tsim khoom, ua kom lub cev tsis xis nyob, detoxification, thiab kev tu lub qhov ncauj.
Yog tias koj xav paub ntxiv, thov nyem rau ntawm daim duab saum toj no!