Mbadamba ụrọ nke vitamin C kacha ewu ewu maka nkwalite mgbochi mmadụ
Nkọwa ngwaahịa
| Ngwaahịa | Vitamin C |
| CAS | 50-81-7 |
| Ọdịdị | kristal ọcha ma ọ bụ ntụ ntụ ọcha kristal |
| Solubility | Soluble n'ime mmiri, ubé soluble na ethanol, insoluble na ether, benzene, griiz, wdg |
Vitamin C (Vitamin C), utu aha Ascorbic acid (Ascorbic acid), molekụla usoro bụ C6H8O6, bụ a polyhydroxyl compound nwere 6 carbon atom, bụ a mmiri-soluble vitamin dị mkpa iji nọgide na-enwe nkịtị physiological ọrụ nke ahu na ndiiche metabolic. mmeghachi omume nke mkpụrụ ndụ.Ọdịdị nke vitamin C dị ọcha bụ kristal ọcha ma ọ bụ ntụ ntụ crystalline, nke na-adị mfe soluble na mmiri, ubé soluble na ethanol, insoluble na ether, benzene, griiz, wdg Vitamin C nwere acidic, mbenata, ngwa anya ọrụ na carbohydrate Njirimara, na nwere. hydroxylation, antioxidant, nkwalite mgbochi na detoxification mmetụta na ahụ mmadụ.Ụlọ ọrụ na-abụkarị site na usoro biosynthesis (fermentation) iji kwadebe vitamin C, a na-ejikarị vitamin C na mpaghara ahụike na nri nri.
| Njirimara anụ ahụ na kemịkal | 1. Ọdịdị: kristal ọcha ma ọ bụ ntụ ntụ kristal. 2. Solubility: mfe soluble na mmiri, ntakịrị soluble na ethanol, insoluble na ether, benzene, griiz, wdg. 3. Ọrụ anya: Vitamin C nwere 4 ngwa anya isomers, na kpọmkwem ntụgharị nke ihe aqueous ngwọta nwere L-ascorbic acid nke 0.10 g / ml bụ +20,5 °-+21,5 Celsius. 4. Acid: Vitamin C nwere enediol base, nke bụ acidic, na-egosipụtakarị dị ka acid dị mfe nke nwere ike imeghachi na sodium bicarbonate iji mepụta nnu sodium. 5. Carbohydrate Njirimara: The chemical Ọdịdị nke vitamin C yiri nke shuga, na Njirimara nke sugar, nke nwere ike hydrolyzed na decarboxylated na-emepụta pentose na ọnụnọ , na-anọgide na-efunahụ mmiri na-emepụta, na-agbakwụnye pyrrole na kpo oku ka. 50ºC ga-emepụta acha anụnụ anụnụ. 6. Njirimara absorption nke ultraviolet: N'ihi ọnụnọ nke njikọ abụọ na-ejikọta na vitamin C ụmụ irighiri ihe, ngwọta ya na-eme ka ọ dị elu nwere njedebe kachasị elu na 243 nm wavelength, na njedebe kachasị elu ga-abụ redshifted na 265 nm n'okpuru ọnọdụ acidic ma ọ bụ alkaline. 7. Reucibility: ndị endiol otu na vitamin bụ nnọọ reducible, kwụsiri ike na ebe acidic, na mfe ibibi na okpomọkụ, ìhè, aerobic na alkaline gburugburu.Vitamin C na-oxidized na-emepụta a diketo-based Ọdịdị nke dehydrovitamin C, dehydrovitamin C nwere ike nweta mgbe hydrogenation Mbelata nke vitamin C. Na mgbakwunye, na alkaline ngwọta na ike acid ngwọta, dehydrovitamin C nwere ike ọzọ hydrolyzed iji nweta diketogulonic acid. |
| Ọrụ anụ ahụ | 1. Hydroxylation Vitamin C na-ekere òkè na mmeghachi omume hydroxylation na ahụ mmadụ, nke metụtara metabolism nke ọtụtụ ihe dị mkpa na ahụ mmadụ.Dịka ọmụmaatụ, vitamin C nwere ike isonye na ịkwalite hydroxylation nke cholesterol n'ime bile acid;Na-eme ka ọrụ oxidase ọrụ agwakọta;Ọ na-etinye aka na ọrụ hydroxylase ma na-akwalite njikọ nke amino acid neurotransmitters 5-hydroxytryptamine na norepinephrine. 2. Antioxidant Vitamin C nwere ike redicibility siri ike na ọ bụ ezigbo antioxidant na-agbaze mmiri, nke nwere ike ibelata hydroxyl radicals, superoxides na ndị ọzọ na-arụ ọrụ oxides n'ime ahụ mmadụ, ma nwee ike wepụ free radicals na igbochi lipid peroxidation. 3. kwalite ọgụ Ọrụ phagocytic nke leukocyte metụtara ọkwa vitamin na plasma.Mmetụta antioxidant nke vitamin C nwere ike belata njikọ nke disulfide (-S - S -) na mgbochi nke sulfhydryl (-SH), wee kwalite mbelata cystine na cysteine, na n'ikpeazụ na-akwalite nhazi nke ọgwụ mgbochi. 4. Detoxify Nnukwu doses nke vitamin C nwere ike rụọ ọrụ na ion metal dị arọ dị ka Pb2+, Hg2+, Cd2+, nsị nje bacteria, benzene na ụfọdụ ọgwụ lysins.Isi usoro bụ dị ka ndị a: ike reducibility nke vitamin C nwere ike wepụ oxidized glutathione n'ahụ mmadụ, na mgbe ahụ na-etolite a mgbagwoju na arọ metal ion na-ahapụ n'ahụ;N'ihi na ikuku oxygen na ọnọdụ C2 nke vitamin C na-adịghị mma, vitamin C n'onwe ya nwekwara ike ijikọta ya na ion ígwè ma wepụ ya na ahụ site na mmamịrị;Vitamin C na-akwalite ọrụ enzyme (hydroxylation) iji mee ka nsị na nsị na-egbu egbu. 5. Absorption na metabolism Ntinye vitamin C site na iri nri n'ime ahụ mmadụ bụ mbufe na-arụsi ọrụ ike na eriri afọ nke elu nke elu site na onye na-ebufe ya, obere ego na-etinyekwa uche ya site na mgbasa ozi.Mgbe oriri nke vitamin C dị ntakịrị, ihe fọrọ nke nta ka ọ bụrụ mmadụ nile nwere ike itinye uche na ya, na mgbe oriri ahụ ruru 500 mg / d, ọnụ ọgụgụ absorption ga-agbada ruo ihe dịka 75%.Vitamin C na-etinye obi gị dum ga-abanye ngwa ngwa na mgbasa ọbara wee banye n'anụ ahụ na akụkụ ahụ dị iche iche. Ọtụtụ vitamin C bụ metabolized na ahụ mmadụ n'ime oxalic acid, 2, 3-diketogulonic acid, ma ọ bụ jikọtara ya na sulfuric acid na-etolite ascorbate-2-sulfuric acid na excreted na mmamịrị;A na-ewepụ ụfọdụ n'ime ya na mmamịrị.Ọnụ ọgụgụ vitamin C a na-awụpụ na mmamịrị na-emetụta oriri vitamin C, ọrụ akụrụ, na ọnụọgụ ebe nchekwa echekwara n'ime ahụ. |
| Usoro nchekwa | Zere ịchekwa ya na oxidants siri ike na alkalis, ma chekwaa n'ime akpa mechiri emechi jupụtara na gas inert na obere okpomọkụ.
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Uru anyị
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