ʻO ka papa ʻaina Vitamin C Chewable kaulana loa no ka hoʻonui ʻana i ka palekana kanaka
Wehewehe Huahana
| Huahana | Wikamina C |
| CAS | 50-81-7 |
| helehelena | Ke aniani keʻokeʻo a i ʻole ka pauka aniani keʻokeʻo |
| Ka hiki ke hoʻoheheʻe ʻia | Hoʻoheheʻe ʻia i ka wai, hoʻoheheʻe iki ʻia i ka ethanol, hoʻoheheʻe ʻole ʻia i ka ether, benzene, grease, a pēlā aku |
ʻO ka Vitamin C (Vitamin C), ʻo ia hoʻi ka Ascorbic acid (Ascorbic acid), ʻo ke ʻano molekala ʻo C6H8O6, he hui polyhydroxyl ia e loaʻa ana he 6 mau ʻātoma kalapona, he huaora wai-hoʻoheheʻe ʻia e pono ai no ka mālama ʻana i ka hana physiological maʻamau o ke kino a me ka hopena metabolic maʻamau o nā cell. ʻO ke ʻano o ka vitamin C maʻemaʻe he kristal keʻokeʻo a i ʻole ka pauka crystalline, hiki ke hoʻoheheʻe maʻalahi i ka wai, hoʻoheheʻe iki ʻia i ka ethanol, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka ether, benzene, grease, a pēlā aku. Loaʻa i ka Vitamin C nā waiwai acidic, hoʻemi, hana optical a me nā waiwai carbohydrate, a he hydroxylation, antioxidant, hoʻonui i ka pale ʻana a me nā hopena detoxification i loko o ke kino o ke kanaka. ʻO ka ʻoihana nui ma o ke ʻano biosynthesis (fermentation) e hoʻomākaukau i ka vitamin C, hoʻohana nui ʻia ka vitamin C ma ke kahua lapaʻau a me ke kahua meaʻai.
| Nā waiwai kino a me nā kemika | 1. ʻAno: aniani keʻokeʻo a pauka aniani paha. 2. Solubility: maʻalahi ka hoʻoheheʻe ʻia i ka wai, hoʻoheheʻe iki ʻia i ka ethanol, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka ether, benzene, grease, etc. 3. Hana ʻike maka: He 4 mau isomers ʻike maka ko ka Vitamin C, a ʻo ka hoʻohuli kikoʻī o kahi hopena wai e loaʻa ana ka waikawa L-ascorbic o 0.10 g/ml he +20.5 °-+21.5 °. 4. ʻAkika: Loaʻa i ka Vitamin C kahi kumu enediol, he waikawa ia, i hōʻike pinepine ʻia ma ke ʻano he waikawa maʻalahi e hiki ke hana me ka sodium bicarbonate e hana i ka paʻakai sodium. 5. Nā waiwai kalapona: Ua like ke ʻano kemika o ka huaora C me ke kō, me nā waiwai o ke kō, hiki ke hydrolyzed a decarboxylated e hana i ka pentose i ke alo, a hoʻomau i ka nalowale ʻana o ka wai e hana ai, me ka hoʻohui ʻana i ka pyrrole a me ka hoʻomehana ʻana i 50 ºC e hana i ka uliuli. 6. Nā ʻano omo ultraviolet: Ma muli o ke alo o nā pilina pālua i hoʻohui ʻia i loko o nā molekala huaora C, ʻo kona hopena dilute ka omo nui loa ma ka nalu 243 nm, a e hoʻololi ʻia ka nalu omo nui loa i 265 nm ma lalo o nā kūlana acidic a alkaline paha. 7. Hoʻemi ʻia: hiki ke hoʻemi nui ʻia ka hui enediol i loko o ka huaora, paʻa i kahi ʻano waikawa, a maʻalahi hoʻi e luku ʻia i ka wela, ka mālamalama, nā ʻano aerobic a me nā ʻano alkaline. Hoʻopau ʻia ka Vitamin C e hana i kahi ʻano diketo-based o dehydrovitamin C, hiki ke loaʻa ka dehydrovitamin C ma hope o ka hoʻemi ʻana o ka hydrogenation o ka huaora C. Eia kekahi, i loko o ka hopena alkaline a me ka hopena waikawa ikaika, hiki ke hydrolyzed hou ʻia ka dehydrovitamin C e loaʻa ai ka waikawa diketogulonic. |
| Hana kino | 1. Hydroxylation Ke komo nei ka huaora C i ka hopena hydroxylation i loko o ke kino o ke kanaka, kahi e pili ana i ka metabolism o nā mea nui he nui i loko o ke kino o ke kanaka. No ka laʻana, hiki i ka huaora C ke komo a paipai i ka hydroxylation o ka cholesterol i loko o nā waikawa bile; Hoʻonui i ka hana oxidase i hui pū ʻia; Ke komo nei i ka hana hydroxylase a paipai i ka synthesis o nā neurotransmitters amino acid 5-hydroxytryptamine a me norepinephrine. 2. Mea hoʻōla ʻona Loaʻa i ka Vitamin C ka reducibility ikaika a he antioxidant wai maikaʻi loa ia, hiki ke hōʻemi i nā radical hydroxyl, superoxides a me nā oxides hana ʻē aʻe i ke kino o ke kanaka, a hiki ke wehe i nā radical manuahi a pale i ka lipid peroxidation. 3. Hoʻoikaika i ka palekana Pili ka hana phagocytic o ka leukocyte i ka pae huaora i loko o ka plasma. Hiki i ka hopena antioxidant o ka huaora C ke hōʻemi i ka pilina disulfide (-S - S -) i loko o ka antibody i sulfhydryl (-SH), a laila paipai i ka hōʻemi ʻana o ka cystine i cysteine, a ma ka hopena paipai i ka hoʻokumu ʻia ʻana o nā antibodies. 4. Hoʻomaʻemaʻe i ka ʻona Hiki i nā mahele nui o ka huaora C ke hana i nā ion metala kaumaha e like me Pb2+, Hg2+, Cd2+, nā mea ʻawahia bacteria, benzene a me kekahi mau lysins lāʻau. ʻO ke ʻano nui penei: hiki i ka hiki ke hoʻemi nui ʻia o ka huaora C ke wehe i ka glutathione oxidized mai ke kino o ke kanaka, a laila hana i kahi paʻakikī me nā ion metala kaumaha e hoʻokuʻu ʻia mai ke kino; No ka mea ua hoʻopiʻi maikaʻi ʻole ʻia ka oxygen ma ke kūlana C2 o ka huaora C, hiki ke hui pū ʻia ka huaora C me nā ion metala a hoʻokuʻu ʻia mai ke kino ma o ka mimi; Hoʻonui ka huaora C i ka hana enzyme (hydroxylation) e hoʻomaʻamaʻa i ka detoxification o nā mea make a me nā lāʻau lapaʻau. 5. Ka omo ʻana a me ka metabolism ʻO ka omo ʻana o ka wikamina C ma o ka ʻai ʻana i loko o ke kino o ke kanaka, ʻo ia ka lawe ʻana i loko o ka ʻōpū liʻiliʻi o luna e kahi mea lawe, a ua omo ʻia kahi liʻiliʻi e ka hoʻolaha passive. Ke haʻahaʻa ka ʻai ʻana o ka wikamina C, hiki ke omo ʻia nā mea āpau, a i ka wā e hiki ai i ka ʻai ʻana he 500 mg/d, e hāʻule ka nui o ka omo ʻana i kahi o 75%. E komo koke ka wikamina C i omo ʻia i ke kahe koko a komo i nā ʻiʻo a me nā ʻōkana like ʻole o ke kino. Hoʻololi ʻia ka hapa nui o ka wikamina C i loko o ke kino o ke kanaka i ka waikawa oxalic, 2, 3-diketogulonic acid, a i ʻole i hui pū ʻia me ka waikawa sulfuric e hana i ka ascorbate-2-sulfuric acid a hoʻokuʻu ʻia i loko o ka mimi; Hoʻokuʻu ʻia kekahi o ia mea i loko o ka mimi. Hoʻopilikia ʻia ka nui o ka wikamina C i hoʻokuʻu ʻia i loko o ka mimi e ka lawe ʻana o ka wikamina C, ka hana o nā puʻupaʻa, a me ka nui o ka hoʻomanaʻo i mālama ʻia i loko o ke kino. |
| ʻAno mālama | Mai mālama me nā mea hoʻomake oxidant ikaika a me nā alkalis, a e mālama i loko o kahi pahu paʻa i piha i nā kinoea inert ma nā mahana haʻahaʻa.
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