Vitamin C (Ascorbic Acid) Cas: 50-81-7
| Catalog Number | XD91869 |
| Product Name | Vitamin C (ascorbic Acid) |
| CAS | 50-81-7 |
| Molecular Formula | C6H8O6 |
| Molecular Weight | 176.12 |
| Storage Details | 5-30°C |
| Harmonised Tariff Code | 29362700 |
Chigadzirwa Specification
| Chitarisiko | Upfu chena |
| Assay | 99% min |
| Melting point | 190-194 °C (Zvita.) |
| alpha | 20.5 º (c=10,H2O) |
| Boiling point | 227.71°C (yakaomarara fungidziro) |
| density | 1,65 g/cm3 |
| refractive index | 21 ° (C=10, H2O) |
| solubility | H2O: 50 mg/mL pa20 °C, yakajeka, inenge isina ruvara |
| pka | 4.04, 11.7(pa25℃) |
| PH | 1.0 - 2.5 (25℃, 176g/L mumvura) |
| PH Range | 1 - 2.5 |
| Kunhuwa | Kusina hwema |
| optical chiitiko | [α]25/D 19.0 kusvika 23.0°, c = 10% muH2O |
| Mvura Solubility | 333 g/L (20 ºC) |
| Kugadzikana | Yakagadzikana.Inogona kunge isina kusimba chiedza kana mhepo.Hazvienderani ne oxidizing agents, alkali, iron, mhangura. |
Panotangira kuumbwa kwevhitamini C ndiko kusarudzwa kweiyo oxidation yeshuga inosanganiswa D-sorbit kusvika kuL-sorbose uchishandisa mabhakitiriya eAcetobacter suboxidans.L-sorbose inobva yashandurwa kuita L-ascorbic acid, inozivikanwa zviri nani sevhitamini C.
Sodium, potassium, uye calcium salt ye ascorbic acids inonzi ascorbates uye inoshandiswa sezvokudya zvinochengetedza.Kuti uite ascorbic acid mafuta-anonyungudika, inogona kuve esterified.Esters of ascorbic acid uye acids, senge palmitic acid kuumba ascorbyl palmitate uye stearic acid kuti igadzire ascorbic stearate, inoshandiswa se antioxidants mukudya, mishonga, uye cosmetics.Ascorbic acid yakakoshawo mune metabolism yemamwe amino acids.Inobatsira kudzivirira maseru kubva kukuvadzwa kwemahara radical, inobatsira kutorwa kwesimbi, uye yakakosha kune akawanda metabolic maitiro.
Vitamin C inozivikanwa kwazvo inorwisa oxidant.Mhedzisiro yaro pakuumbwa kwemahara-yakakura kana ichiiswa pamusoro peganda nenzira yekrimu haina kujekeswa.Kushanda kwemashandisirwo emusoro kwakabvunzwa nekuda kwekusagadzikana kwevhitamini C (inopindirana nemvura uye inoshatisa).Mamwe mafomu anonzi ane kugadzikana kuri nani muhurongwa hwemvura.Synthetic analogues senge magnesium ascorbyl phosphate ari pakati peaya anoonekwa seanoshanda zvakanyanya, sezvo anowanzo kuve akanyanya kugadzikana.Kana uchiongorora kugona kwayo kurwisa mahara-radical kukuvara muchiedza che synergistic mhedzisiro nevhitamini E, vhitamini C inopenya.Sezvo vhitamini e inopindirana nemahara radical, iyo, zvakare, inokuvadzwa neiyo mahara radical iri kurwisa.Vhitamini C inouya kuzogadzirisa kukuvadzwa kwemahara-radical muvhitamini E, ichibvumira e kuenderera mberi nemabasa ayo emahara ekutsvaira.Tsvagiridzo yakapfuura yakaratidza kuti huwandu hwakanyanya hwevhitamini C hwakaiswa mumusoro ndeye photoprotective, uye sezviri pachena kugadzirira kwevhitamini kunoshandiswa muzvidzidzo izvi kwairamba sipo nemvura, kugeza, kana kukwesha kwemazuva matatu.Kumwe kutsvagurudza kwazvino kwakaratidza kuti vhitamini C inowedzera dziviriro kubva kuVB kukuvara kana yasanganiswa neUVB sunscreen makemikari.Izvi zvingaita kuti munhu agumise kuti pamwe chete nemishonga inodzivirira zuva, vhitamini C inogona kubvumira kudzivirirwa kwezuva kwenguva refu, kwakafara.Zvekare, kuwirirana pakati pevhitamini C uye e kunogona kuburitsa zvirinani, sezviri pachena musanganiswa wezvose zvinopa dziviriro yakanaka kubva kukukuvara kweVB.Nekudaro, vhitamini C inoratidzika kunge iri nani zvakanyanya pane e pakudzivirira kubva kukuvadzwa kweUVA.Imwezve mhedziso ndeyokuti musanganiswa wevhitamini C, e, uye sunscreen inopa dziviriro huru kupfuura huwandu hwedziviriro inopiwa nechero ipi yezvitatu zvinobata chete.Vitamin C inoshandawo se collagen biosynthesis regulator.Iyo inozivikanwa kudzora intercellular colloidal zvinhu senge collagen, uye kana ichigadzirwa mumotokari dzakakodzera, inogona kuve neyakajeka-ganda mhedzisiro.Vitamin C inonzi inokwanisa kubatsira muviri kusimbaradza zvirwere nekusimbisa masoja emuviri.Pane humwe humbowo (kunyangwe kukakavara) kuti vhitamini C inogona kupfuura nepakati peganda uye kukurudzira kuporeswa munyama yakakuvadzwa nekutsva kana kukuvara.Inowanikwa, naizvozvo, mumafuta ekupisa uye makirimu anoshandiswa pakuputika.Vitamin C inofarirwawo mune zvinorwisa-kuchembera zvigadzirwa.Zvidzidzo zvemazuva ano zvinoratidza zvinogona anti-inflammatory properties zvakare.
Physiological antioxidant.Coenzyme yehuwandu hwekuita kwehydroxylation;inodiwa kune collagen synthesis.Yakaparadzirwa zvakanyanya mumiti nemhuka.Kusakwana kwekudya kunoguma nekushomeka kwechirwere s senge scurvy.Inoshandiswa seantimicrobial uye antioxidant mune zvekudya.
