Erythorbic acid yog ib hom khoom noj khoom haus ntxiv uas yog siv los ua antioxidant hauv ntau yam khoom noj. Nws yog dawb, tsw thiab crystalline hmoov uas yog dej-soluble. Erythorbic acid zoo ib yam hauv cov qauv tshuaj rau ascorbic acid (vitamin C) thiab nws kuj muaj cov khoom antioxidant. Cov kua qaub no feem ntau yog siv nrog rau lwm cov khoom noj ntxiv los txhim kho lawv cov txiaj ntsig.
Chemical Properties
Erythorbic acid tshwm sim raws li ib tug dawb los yog me ntsis daj-xim crystals los yog hmoov. Nws maj mam darkens nyob rau hauv cov xim thaum raug rau lub teeb.
Siv
Antioxidant (kev lag luam thiab zaub mov), tshwj xeeb tshaj yog nyob rau hauv kev lag luam brewing, txo tus neeg sawv cev hauv kev yees duab.
Erythorbic Acid yog ib qho khoom noj khoom haus uas muaj zog txo tus neeg sawv cev (oxygen txais) uas ua haujlwm zoo ib yam li antioxidants. Nyob rau hauv lub qhuav crystalline lub xeev nws yog nonreactive, tab sis nyob rau hauv dej daws nws reacts nkag tau nrog atmospheric oxygen thiab lwm yam oxidizing neeg sawv cev, ua rau nws muaj nuj nqis raws li ib tug antioxidant. Thaum lub sij hawm kev npaj, dissolving thiab sib tov yuav tsum muab ib tug tsawg kawg nkaus tus nqi ntawm cov huab cua, thiab cia yuav tsum nyob rau hauv txias txias. Nws muaj solubility ntawm 43 g / 1 00 ml ntawm dej ntawm 25 degree c. Ib feem yog sib npaug rau ib feem ascorbic acid thiab sib npaug rau ib feem ntawm sodium erythorbate. Nws yog siv los tswj oxidative xim thiab tsw deterioration hauv txiv hmab txiv ntoo ntawm 150-200 ppm. Nws yog siv rau hauv cov nqaij curing kom ceev thiab tswj cov nitrite curing cov tshuaj tiv thaiv thiab ncua cov xim ntawm cov nqaij kho ntawm theem ntawm 0.05 feem pua.
Erythorbic Acid yog siv los ua zaub mov ntxiv raws li cov tshuaj tua kab mob thiab tshuaj tua kab mob.
Txoj kev tsim khoom
Erythorbic acid yog tsim los ntawm cov tshuaj tiv thaiv ntawm methyl 2- keto-D-gluconate thiab sodium methoxide. Nws kuj tseem tuaj yeem tsim los ntawm sucrose, thiab tsim los ntawm Penicillium spp.
Biotechnological ntau lawm
Cov poov xab thiab lwm yam fungi synthesize C5 qab zib acid D-erythroascorbic acid uas qhia cov qauv thiab physicochemical zog nrog Asc. D-erythroascorbic acid ua haujlwm zoo sib xws hauv cov kab mob no raws li Asc ua hauv cov nroj tsuag thiab tsiaj txhu, suav nrog kev tshem tawm cov pa oxygen reactive. Lub biosynthesis ntawm D-erythroascorbic acid pib los ntawm D-arabinose tau los ntawm cov kab mob los ntawm cov khoom cog decaying. D-arabinose, xav tias nyob rau hauv nws 1, 4-furanosidic isomeric daim ntawv, yog oxidized los ntawm NAD(P) ntxiv rau tej dehydrogenases rau D-arabinono-1,4-lactone, uas yog ntxiv oxidized rau D-erythroascorbic acid los ntawm D-arabinono-1, 4-lactone oxidase. Cov hlwb so ntawm Saccharomyces cerevisiae tuaj yeem ua ke Asc los ntawm L-galactose, L-galactono-1, 4-lactone, lossis L-gulono- 1,4-lactone ntawm txoj kev siv ib txwm siv. rau D-erythroascorbic acid.
Specifications
Erythorbic acid yog cov khoom noj muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo uas tau tswj hwm los ntawm Food and Drug Administration (FDA). Nws muaj cov tshuaj formula C6H8O6 thiab molecular hnyav 176.12 g/mol. Lub purity ntawm erythorbic acid siv nyob rau hauv cov khoom noj khoom haus yog feem ntau ntawm 98-100 feem pua.
Daim ntawv thov
Erythorbic acid feem ntau yog siv los ua cov khoom noj khoom haus ntau yam khoom noj xws li nqaij, nqaij qaib, thiab nqaij nruab deg, kom tsis txhob muaj xim thiab lwj. Nws kuj yog siv los ua antioxidant hauv cov kaus poom txiv hmab txiv ntoo thiab zaub, dej haus, thiab cov khoom ci. Erythorbic acid kuj tseem siv rau hauv kev lag luam tshuaj pleev ib ce ua antioxidant thiab preservative.
Kev cia khoom
Erythorbic acid yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav, deb ntawm tshav ntuj ncaj qha thiab qhov chaw tshav kub. Qhov ntsuas kub tau pom zoo yog qis dua 25 degree (77 degree F). Erythorbic acid yuav tsum tau khaws cia rau hauv nws qhov qub ntim lossis hauv lub thawv kaw, tiv thaiv los ntawm ya raws thiab huab cua. Thaum khaws cia kom zoo, erythorbic acid muaj lub neej txee ntev li 2 xyoos.
Cim npe nrov: Tuam Tshoj erythorbic acid manufacturers, hoobkas
