Vitamin C na ngwaahịa nlekọta anụ ahụ: gịnị kpatara o ji ewu ewu?

1. Mma uru nke vitamin C:
1) Antioxidant
Mgbe akpụkpọ ahụ na-akpali site na ikpughe anyanwụ (ultraviolet radieshon) ma ọ bụ mmetọ gburugburu ebe obibi, a na-emepụta nnukwu radicals free. Akpụkpọ ahụ na-adabere na usoro mgbagwoju anya nke enzyme na ndị na-abụghị enzyme antioxidants iji chebe onwe ya pụọ ​​na mmebi radical free.
VC bụ antioxidant kachasị ukwuu na akpụkpọ ahụ mmadụ, na-eji ọdịdị ya nke ukwuu oxidizable dochie ihe ndị ọzọ ma chebe ha pụọ ​​​​na oxidation. N'ikwu ya n'ụzọ ọzọ, VC na-achụ onwe ya n'àjà iji kpochapụ ma kpochapụ free radicals, si otú ahụ na-echebe akpụkpọ ahụ.

2) Na-egbochi mmepụta nke melanin
VC na usoro ya nwere ike igbochi tyrosinase, belata ngbanwe nke tyrosinase, ma belata mmepụta melanin. Na mgbakwunye na igbochi tyrosinase, VC nwekwara ike rụọ ọrụ dị ka onye na-ebelata melanin na ngwaahịa etiti nke melanin synthesis, dopaquinone, na-ebelata oji ka ọ ghara ịdị na-acha ma nweta mmetụta ọcha. Vitamin C bụ ihe dị mma ma dị irè na-eme ka akpụkpọ ahụ dị ọcha.

3) mkpuchi anwụ anwụ

VC na-ekere òkè na njikọ nke collagen na mucopolysaccharides, na-akwalite ọgwụgwọ ọnya, na-egbochi ntachu anwụ, ma na-ezere sequelae hapụrụ site oke ìhè anyanwụ. N'otu oge ahụ, vitamin C nwere ezigbo antioxidant Njirimara ma nwee ike ijide ma wepụ ihe ndị na-akpata free radicals na akpụkpọ ahụ, na-egbochi mmebi site na ụzarị ultraviolet. Ya mere, a na-akpọ vitamin C "sunscreen intradermal". Ọ bụ ezie na ọ nweghị ike ịmịkọrọ ma ọ bụ gbochie ụzarị ultraviolet, ọ nwere ike ịmepụta mmetụta nchebe megide mmebi ultraviolet na dermis. Mmetụta nchebe anyanwụ nke ịgbakwunye VC dabeere na sayensị ~

4) Na-akwalite njikọ nke collagen

Ọnwụ nke collagen na elastin nwere ike ime ka akpụkpọ ahụ anyị ghara ịdị na-agbanwe ma nwee ahụmahụ ịka nká dị ka ahịrị dị mma.

Isi ihe dị iche n'etiti collagen na protein mgbe niile bụ na o nwere hydroxyproline na hydroxylysine. Njikọ nke amino acid abụọ a chọrọ itinye aka na vitamin C.
Hydroxylation nke proline n'oge njikọ nke collagen chọrọ ntinye nke vitamin C, ya mere ụkọ vitamin C na-egbochi njikọ nkịtị nke collagen, na-eduga ná nsogbu njikọ cellular.

5) Imezi ihe mgbochi mebiri emebi iji kwalite ọgwụgwọ ọnya

Vitamin C nwere ike ịkwalite ọdịiche nke keratinocytes, kpalie ọrụ mgbochi epidermal, ma nyere aka wughachi oyi akwa. Ya mere vitamin C nwere mmetụta dị mma na mgbochi akpụkpọ ahụ.

Nke a bụkwa ihe kpatara otu n'ime ihe mgbaàmà nke enweghị nri a bụ ọgwụgwọ ọnya na-adịghị mma.

6) mgbochi mkpali

Vitamin C nwekwara mmetụta antibacterial na mgbochi mkpali mara mma, nke nwere ike ibelata ọrụ ihe odide nke cytokines dị iche iche na-akpasu iwe. Ya mere, vitamin C na-ejikarị ndị ọkachamara n'ihe gbasara anụ ahụ na-agwọ ọrịa akpụkpọ anụ dị ka ihe otutu.

2, Kedu ụdị vitamin C dị iche iche?
A na-akpọ vitamin C dị ọcha L-ascorbic acid (L-AA). Nke a bụ ụdị vitamin C kachasị na-arụsi ọrụ ike na nke a na-amụ nke ọma. Otú ọ dị, ụdị a na-eme ngwa ngwa oxidizes na-aghọ adịghị arụ ọrụ n'okpuru ikuku, okpomọkụ, ìhè, ma ọ bụ oke pH ọnọdụ. Ndị ọkà mmụta sayensị kwadoro L-AA site n'ijikọta ya na vitamin E na ferulic acid maka ojiji na ihe ịchọ mma. Enwere ọtụtụ usoro ndị ọzọ maka vitamin C, gụnyere 3-0 ethyl ascorbic acid, ascorbate glucoside, magnesium na sodium ascorbate phosphate, tetrahexyl decanol ascorbate, ascorbate tetraisopropylpalmitate, na ascorbate palmitate. Mwepụta ndị a abụghị vitamin C dị ọcha, mana emezigharịrị iji kwalite nkwụsi ike na nnabata nke ụmụ irighiri ihe ascorbic acid. N'ihe gbasara ịdị irè, ọtụtụ n'ime usoro ndị a nwere data na-emegiderịta onwe ha ma ọ bụ chọọ nyocha ọzọ iji kwado ịdị irè ha. L-ascorbic acid, tetrahexyl decanol ascorbate, na ascorbate tetraisopalmitate kwụsiri ike na vitamin E na ferulic acid nwere data kacha akwado ojiji ha.