Muindasitiri yerunako uye yeganda, pane chinhu chinodiwa nevasikana vese, uye iri vhitamini C.
Kucheneruka, kubviswa manyawi, uye runako rweganda zvese zvine simba zvinokonzerwa nevhitamini C.
1, Runako runobatsira rwevhitamini C:
1) Antioxidant
Kana ganda richikurudzirwa nekubuda kwezuva (ultraviolet radiation) kana kusvibisa kwezvakatipoteredza, huwandu hukuru hwemahara radicals hunogadzirwa. Ganda rinotsamira pane yakaoma system ye enzyme uye isiri enzyme antioxidants kuti izvidzivirire kubva kune yemahara radical kukuvara.
VC ndiyo yakanyanya kuwanda antioxidant muganda remunhu, ichishandisa iyo yakanyanya oxidizable hunhu kutsiva zvimwe zvinhu uye kudzivirira kubva kune oxidation. Mune mamwe mazwi, VC inozvipira kudzikamisa uye kubvisa mahara radicals, nekudaro ichidzivirira ganda.
2) Kurambidza kugadzirwa kwe melanin
VC nezvinobvamo zvinogona kukanganisa tyrosinase, kuderedza shanduko yetyrosinase, uye kuderedza kugadzirwa kwe melanin. Pamusoro pekudzivisa tyrosinase, VC inogona zvakare kuita senge inoderedza melanin uye yepakati chigadzirwa che melanin synthesis, dopaquinone, ichidzikisa dema kune isina ruvara uye kuwana chena mhedzisiro. Vitamin C yakachengeteka uye inoshanda ganda chena mumiriri.
3) Skin sunscreen
VC inotora chikamu mukugadzirwa kwe collagen uye mucopolysaccharides, inosimudzira kuporeswa kwemaronda, inodzivirira kupisa kwezuva, uye inodzivirira iyo sequelae inosiiwa nekunyanya kuratidzwa kwezuva. Panguva imwecheteyo, vhitamini C ine yakanakisa antioxidant zvivakwa uye inogona kubata uye kudzikamisa mahara radicals muganda, kudzivirira kukuvara kubva kune ultraviolet mwaranzi. Nokudaro, vitamini C inonzi "intradermal sunscreen". Kunyangwe isingakwanise kutora kana kuvhara ultraviolet mwaranzi, inogona kuburitsa inodzivirira kurwisa ultraviolet kukuvara mudermis. Iko kudzivirira kwezuva kwekuwedzera VC kwakavakirwa nesainzi ~
4) Kurudzira collagen synthesis
Kurasikirwa kwe collagen uye elastin kunogona kuita kuti ganda redu riite shoma uye rive neruzivo rwekuchembera zviitiko zvakaita semitsetse yakanaka.
Musiyano mukuru pakati pe collagen uye puroteni yenguva dzose ndeyekuti ine hydroxyproline uye hydroxylysine. Kuumbwa kweaya maviri amino acids kunoda kubatanidzwa kwevhitamini C.
Iyo hydroxylation yeproline panguva yekugadzirwa kwe collagen inoda kutora chikamu kwevhitamini C, saka kushomeka kwevhitamini C kunodzivirira iyo yakajairika synthesis ye collagen, zvichitungamira kumatambudziko ekubatanidza ma cellular.
5) Kugadzirisa zvipingamupinyi zvakakanganisika kukurudzira kuporesa maronda
Vitamin C inogona kukurudzira kusiyanisa kwe keratinocytes, kukurudzira epidermal barriers basa, uye kubatsira kuvaka patsva epidermal layer. Saka vhitamini C ine mhedzisiro yakanaka paganda reganda.
Ichi ndicho chikonzero zvakare chimwe chezviratidzo zvekushaiwa chikafu ichi kusapora kwemaronda.
6) Anti inflammatory
Vitamin C zvakare ine yakanakisa antibacterial uye anti-kuzvimba mhedzisiro, iyo inogona kuderedza iyo transcription factor chiitiko cheakasiyana anopisa cytokines. Nokudaro, vhitamini C inowanzoshandiswa nedermatologists kurapa zvirwere zvinoputika zveganda senge acne.
2, Ndeapi marudzi akasiyana evhitamini C?
Yakachena vhitamini C inonzi L-ascorbic acid (L-AA). Iyi ndiyo yakanyanya biologically inoshanda uye yakanyatsodzidza fomu yevhitamini C. Zvisinei, iyi fomu inokurumidza oxidize uye inova isingashande pasi pemhepo, kupisa, chiedza, kana yakanyanyisa pH mamiriro. Masayendisiti akadzikamisa L-AA nekuisanganisa nevhitamini E uye ferulic acid kuti ishandiswe muzvizoro. Kune mamwe akawanda maforoma evhitamini C, anosanganisira 3-0 ethyl ascorbic acid, ascorbate glucoside, magnesium uye sodium ascorbate phosphate, tetrahexyl decanol ascorbate, ascorbate tetraisopropylpalmitate, uye ascorbate palmitate. Izvi zvakabva hazvisi yakachena vhitamini C, asi yakagadziridzwa kuti iwedzere kugadzikana uye kushivirira kweascorbic acid mamorekuru. Panyaya yekushanda, mazhinji eaya mafomula ane data rinopokana kana kuti anoda kumwe kutsvagisa kuti asimbise kushanda kwawo. L-ascorbic acid, tetrahexyl decanol ascorbate, uye ascorbate tetraisopalmitate yakagadzikana ine vhitamini E uye ferulic acid ine data rakawanda rinotsigira kushandiswa kwavo.
Nguva yekutumira: Nov-25-2024
