Vitamine C ifite ingaruka zo gukumira no kuvura aside ya asikorbike, bityo izwi kandi nkaaside asidekandi ni vitamine ikemura amazi. Vitamine C isanzwe iboneka mu mbuto nshya (pome, amacunga, kiwifruit, nibindi) n'imboga (inyanya, imyumbati, na keleti, nibindi). Bitewe no kubura enzyme yingenzi muntambwe yanyuma ya vitamine C biosynthesis mumubiri wumuntu, aribyoL-glucuronic aside 1,4-lactone oxyde (GLO),vitamine C igomba gukurwa mu biryo.
Inzira ya molekuline ya vitamine C ni C6H8O6, ikaba igabanya imbaraga. Amatsinda abiri ya enol hydroxyl kuri atome ya 2 na 3 ya karubone muri molekile iratandukana byoroshye kandi ikarekura H +, bityo okiside igakora vitamine C ya vitamine C na vitamine C na vitamine C ikora sisitemu ya redox idasubirwaho, ikora antioxydeant nindi mirimo itandukanye, kandi, kugira uruhare runini mu mubiri w'umuntu. Iyo ushyizwe mubikorwa byo kwisiga, vitamine C ifite imirimo nko kwera no guteza imbere kolagen.
Ingaruka za vitamine C.
kwera uruhu
Hariho uburyo bubiri bwingenzivitamine C.igira ingaruka zera kuruhu. Uburyo bwa mbere ni uko vitamine C ishobora kugabanya melanine yijimye mu gihe cyo gukora melanine kugirango igabanye melanine. Ibara rya melanin rigenwa nuburyo bwa quinone muri molekile ya melanin, kandi vitamine C ifite umutungo wibintu bigabanya, bishobora kugabanya imiterere ya quinone kumiterere ya fenolike. Uburyo bwa kabiri ni uko vitamine C ishobora kugira uruhare muri metabolisme ya tirozine mu mubiri, bityo bikagabanya ihinduka rya tirozine muri melanine.
antioxydeant
Radicals yubusa ni ibintu byangiza biterwa nigikorwa cyumubiri, gifite imbaraga za okiside kandi gishobora kwangiza ingirangingo n'ingirabuzimafatizo, biganisha ku ndwara zidakira.Vitamine C.ni amazi ashonga yubusa radical scavenger ishobora gukuraho radicals yubusa nka - OH, R -, na O2- mumubiri, igira uruhare runini mubikorwa bya antioxydeant.
Teza imbere synthesis
Hariho ubuvanganzo bwerekana ko ikoreshwa rya buri munsi ryibanze ririmo 5% L-ascorbic aside mu ruhu bishobora kongera imvugo ya mRNA yubwoko bwa I nubwoko bwa III kolagen kuruhu, hamwe nurwego rwa mRNA rwerekana ubwoko butatu bwa invertase, carboxycollagenase , aminoprocollagenase, na lysine oxyde na byo byiyongera ku rugero rumwe, byerekana ko vitamine C ishobora guteza imbere synthesis ya kolagen mu ruhu.
Ingaruka ya Prooxidation
Usibye ingaruka za antioxydeant, vitamine C nayo igira ingaruka za porokiside imbere ya ioni yicyuma, kandi irashobora gutera lipide, okiside ya poroteyine, na ADN yangirika, bityo bikagira ingaruka kumagambo ya gene. Vitamine C irashobora kugabanya peroxide (H2O2) kuri hydroxyl radical kandi igateza imbere kwangirika kwa okiside igabanya Fe3 + kuri Fe2 + na Cu2 + kuri Cu +. Kubwibyo, ntibisabwa kongerera vitamine C kubantu bafite fer nyinshi cyangwa abafite ibibazo byindwara zijyanye no kurenza fer nka thalassemia cyangwa hemochromatose.
Igihe cyo kohereza: Apr-10-2023
