Ascorbic acid (25691-81-0)
Product Description
Ascorbic acid yog ib qho tseem ceeb cofactor rau ntau yam enzymatic cov tshuaj tiv thaiv kab mob hauv lub cev, thiab cov khoom noj tseem ceeb yog zaub tshiab thiab txiv hmab txiv ntoo.
Vitamin C (tseem hu ua ascorbic acid thiab ascorbate) yog ib qho dej-soluble vitamin muaj nyob rau hauv citrus thiab lwm yam txiv hmab txiv ntoo thiab zaub, kuj muag raws li ib tug noj tshuaj ntxiv thiab raws li ib tug tshuaj pleev ib ce "serum" cov khoom los kho melasma (dub pigment me ntsis) thiab wrinkles. ntawm lub ntsej muag.Nws yog siv los tiv thaiv thiab kho scurvy.Vitamin C yog ib qho tseem ceeb hauv kev kho cov ntaub so ntswg, tsim collagen, thiab enzymatic zus tau tej cov neurotransmitters.Nws yog tsim nyog rau kev ua haujlwm ntawm ntau cov enzymes thiab tseem ceeb rau kev tiv thaiv kab mob.Nws kuj ua haujlwm raws li antioxidant.[13]Feem ntau cov tsiaj muaj peev xwm tsim tau lawv tus kheej vitamin C. Txawm li cas los xij, apes (xws li tib neeg) thiab liab (tab sis tsis yog txhua tus tsiaj), feem ntau cov puav, qee cov nas, thiab lwm yam tsiaj yuav tsum tau txais los ntawm cov khoom noj.
Vitamin C muaj lub luag haujlwm tseem ceeb hauv kev kho scurvy, uas yog kab mob tshwm sim los ntawm vitamin C tsis txaus.Ntxiv rau qhov ntawd, lub luag haujlwm rau vitamin C raws li kev tiv thaiv lossis kev kho mob rau ntau yam kab mob tsis sib haum xeeb, nrog kev tshuaj xyuas qhia txog qhov tsis sib haum xeeb.Ib xyoo 2012 Kev tshuaj xyuas Cochrane tau tshaj tawm tsis muaj txiaj ntsig ntawm vitamin C ntxiv rau kev tuag tag nrho
●Pharmaceutical Qib:Ascorbic acid 99%
●Khoom noj khoom haus qib:Ascorbic acid, Vitamin C sodium, Vitamin C calcium, Vitamin C DC qib
●Qib Qib:Ascorbic acid, vitamin C coated, vitamin C phosphate 35%
| Cov ntsiab lus tsom xam | Analysis Standard | Kev txheeb xyuas qhov tshwm sim |
| Yam ntxwv | Dawb los yog yuav luag Dawb Crystalline hmoov | Hla |
| Kev txheeb xyuas | Kev pom zoo | Qhov zoo |
| Melting Point | Txog 190 ℃ | 190.7 ℃ |
| PH (5% aqueous tov) | 2.1-2.6 | 2.36 ib |
| Clarity Of Solution | Ntshiab | Ntshiab |
| Xim Kev daws | ≤ IB 7 | |
| Tooj | ≤ 5ppm | <5 ppm |
| Hnyav Hlau | ≤10ppm | <10ppm |
| Mercury | <0.1mg/kg | <0.1mg/kg |
| Coj | <2 mg/kg | <2 mg/kg |
| Arsenic | ≤ 2 ppm | <2 ppm |
| Oxalic Acid | ≤ 0.2% | <0.2% |
| Hlau | ≤ 2 ppm | <2 ppm |
| Impurity E | ≤ 0.2% | <0.2% |
| Poob rau ziab | ≤ 0.4% | 0.03% |
| Sulphate Ash (Residue On Ignition) | ≤0.1% | <0.1% |
| Specific Optical Rotation | + 20.5°–21.5° | + 21.16 ° C |
| Organic Volatile Impurities | Hla | Hla |
| Assay | 99.0% -100.5% | 99.75% |
| Tag nrho cov phaj suav | ≤1000cfu / g | <100cfu/g |
| Yeasts & pwm | ≤100cfu / g | <10cfu/g |
| Xaus: | Cov khoom uas tau hais los saum toj no ua raws li BP2019/USP41 | |
