Wikamina A (retinol): nā waiwai, nā pono, nā kaulike, nā huahana i loaʻa

ʻO Retinol (Wikamina A) kahi huaola a me ka antioxidant hiki ke hoʻoheheʻe ʻia. Loaʻa ia i nā meaʻai o nā mea kanu a me nā holoholona. I ke kino o ke kanaka, hana ʻia ʻo retinol mai ka beta-carotene.

Mōʻaukala wikamina

Ua loaʻa ka inoa ʻo Vitamin A ma muli o ka ʻike ʻia i ʻike ʻia ma mua o nā mea ʻē aʻe a lilo i mea nona ka leka mua o ka pīʻāpā Latina i ka inoa. I ka makahiki 1913, ua ʻike ʻia ʻelua mau hui ʻepekema kūʻokoʻa i ke ʻano o ke keʻena hoʻokolohua i ka hoʻohui ʻana i ka papaʻai kaulike me nā waihā a me nā protein, pono ke kino i kekahi mau mea hou aʻe, me ka ʻole o ka pono o ka ʻili e haki ai, hāʻule ka ʻike a hoʻoneʻe ʻia ka hana o nā mea āpau āpau.

Ua ʻike ʻia ʻelua mau hui nui. Ua kapa ʻia ka mea mua ʻo ka hui A. Ua komo pū kekahi me ka retinol synthesized, tocopherol a me ka kalama. ʻO ka lua o ka hui, ua kapa ʻia ka inoa B. Ua komo pū nā mea he nui me nā waiwai like. Ma hope iho, ua hoʻonui ʻia kēia pūʻulu i kēlā me kēia manawa, a ʻo kekahi o kāna mau mea, ma hope o ke aʻo lōʻihi ʻana, ua kāpae loa ʻia mai iā ia. ʻO kēia ke kumu i loaʻa ai ka huaʻai B12 akā ʻaʻohe B11.

ʻO ka hana lōʻihi e ʻike i nā waiwai kūpono o retinol i hāʻawi ʻia i ka Nobel Prize ʻelua mau manawa:

• no ka wehewehe ʻana i ke ʻano kemika piha o retinol na Paul Carrer ma 1937;
• no kāna aʻo ʻana i nā hopena maikaʻi o retinol i ka hoʻihoʻi ʻia ʻana o ka hana ʻike na George Wald ma 1967.

He nui nā inoa o ka Wikamina A. ʻO retinol ka mea kaulana loa. Hiki iā ʻoe ke loaʻa ka mea aʻe: dehydroretinol, kahi anti-xerophthalmic a i ʻole anti-infectious vitamina.

Nā waiwai kemika-kino

Kakaikahi ka poʻe, ke nānā nei i kēia ʻano, e hiki ke hoʻomaopopo i kona kū hoʻokahi a me nā waiwai. No laila, e kālailai mākou ia i ke kikoʻī.

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ʻO nā huaʻomaʻa A nā mikalala wale, i hoʻopau ʻia e ka mālam, oxygen, a me ka hiki ʻole ke hoʻoheheʻe ʻia i ka wai. Akā ma lalo o ka mana o nā meaola, synthesized maikaʻi ia. ʻO nā mea hana, e ʻike nei i kēia waiwai o ka wikamina, e hoʻokuʻu iā ia i ke ʻano o nā capsule momona, a, ma ke ʻano he kumu, hoʻohana ʻia ke aniani ʻeleʻele e like me ke ʻūlū.

I ka manawa i loko o ke kino, haki ʻo retinol i ʻelua ʻāpana hana - retinal a retinoic acid, ka hapa nui o lākou i hoʻopili ʻia i nā akepaʻa o ke ake. Akā i nā puʻupaʻa e hoʻopau koke lākou, e waiho ana i kahi lako liʻiliʻi ma kahi o 10% o ka huina. Mahalo i ka hiki ke noho i ke kino, kū mai kahi mālama, kahi e hoʻolilo ʻia e kekahi kanaka. ʻOi aku ka maikaʻi o kēia waiwai o ka wikamina A no nā mea pāʻani, no ka mea, ʻo lākou ka mea e maʻalahi i ka hoʻonui ʻia ʻana o nā wikamina ma muli o ka hoʻoikaika mau.

Komo ʻelua ʻano huaora A. i ke kino mai nā kumuwaiwai like ʻole. Mai ka meaʻai o nā holoholona, ​​loaʻa pololei mākou i ka retinol ponoʻī (soluble momona), a me nā kumuwaiwai o nā kumu kumu kumu me nā carotene bio-soluble ma ke ʻano alpha, beta a me gamma carotenes. Akā hiki ke synthesi ʻia ka retinol mai iā lākou wale nō ma lalo o hoʻokahi kūlana - e loaʻa i kahi mahele o nā kukuna ultraviolet, i nā huaʻōlelo ʻē aʻe - e hele i ka lā. Me ka ʻole o kēia, ʻaʻole hoʻokumu ʻia ʻo retinol. Pono ia ʻano o ka hoʻololi no ke olakino o ka ʻili.

Pōmaikaʻi ka Wikamina A

• Hoʻopilikia i ka pākiko.
• Hoʻihoʻi i ka uhi hoʻopili hoʻopili.
• Hoʻohou i nā pūnaewele o lipid a me nā iwi iwi.
• Loaʻa iā ʻoe nā waiwai antimicrobial a me nā lāʻau kūpona.
• Hoʻoikaika i nā pale pale kūlohelohe o nā hunaola.
• Kāohi i nā maʻi o nā ʻōnaehana ʻike.
• Synthesize na keena o ka hui ami.
• Kākoʻo i ke kaulike wai-paʻakai o ka wahi intracellular.
• Loaʻa iā ia kahi hopena antitumor.
• Komo i loko o ka synthesise o nā polokina a me nā steroid.
• Hoʻopilikia i ka hana o radicals.
• Hoʻonui i ka hana moekolohe.

He mea nui ka hiki i ka wikamina A ke hoʻoponopono i nā hunaola i ʻino no nā ʻano pilina āpau. Hoʻohana ākea kēia waiwai i nā kaʻina hoʻonani, carotenoids hakakā ikaika i nā loli o ka ʻili e pili ana i ka makahiki, hoʻomaikaʻi i ke ʻano o ka lauoho a me nā kui.

4 mau waiwai nui o ka retinol e pono ai i nā mea haʻuki:

1. kōkua i ka hoʻoikaika ʻana i nā iwi a pale i ka leaching calcium;
2. mālama i kahi pae lawa o ka lubrication no nā hono;
3. komo i ka hoʻoulu hou ʻana o nā aʻa kino cartilage;
4. komo i ka hana o nā meaola i loko o nā hunaola o ka wai capsule hui, e pale ana i ka maloʻo ʻana.

Ka helu o kēlā me kēia lā

Pono ka Retinol i kēlā me kēia o mākou i ka nui o ka nui. Hōʻike ka pākaukau i ka koi no ka wikamina i kēlā me kēia lā no nā ʻano makahiki like ʻole.

Ma nā ʻōmole me nā mea hoʻohui biologically active, ma ke ʻano he kūlana, wehewehe ʻia ke ʻano o ka hoʻomalu a me nā ʻike o ka mea hana i 1 capsule a i ʻole ke ana ana i ka puna. Ma muli o ka ʻikepili i ka papa, ʻaʻole paʻakikī e helu i kāu helu vitamona A.

E ʻoluʻolu e ʻoi aku ka kiʻekiʻe o ka pono no ka wikamina i nā mea haʻuki ma mua o ka poʻe mamao loa mai nā haʻuki. No ka poʻe e hōʻike pinepine i ke kino i ka hoʻoikaika ikaika, pono e hoʻomanaʻo i ka lawe ʻana o retinol i kēlā me kēia lā e mālama i ke olakino o nā mea o ka ʻōnaehana musculoskeletal ma kahi o 1.5 mg, akā ʻaʻole i ʻoi aku ma mua o 3 mg i mea e hōʻalo ai i ka overdose (ʻike ʻia kēia i ka papa ma luna) ...

Retinol ʻike i nā huahana

Ua ʻōlelo mākou ua hele mai nā ʻano retinol mai nā huahana o nā mea kanu a me nā holoholona. Lawe mākou i kou manaʻo i nā huahana TOP 15 me kahi ʻike kiʻekiʻe o retinol:

Hoʻolālā nā mea pāʻani he nui i kahi papaʻai pākahi e hoʻopili ʻole i nā meaʻai mai kēia papa inoa. ʻO ka hoʻohana ʻana o nā mea hoʻopihapiha retinol loea e kōkua i ka pono o ka wikamina A. Hoʻomoʻa maikaʻi ʻia me nā protein a me nā amino acid.

© alfaolga - stock.adobe.com

Hoʻohālikelike i ka hoʻohana ʻana o retinol

He mea nui e hoʻomanaʻo i ka momona ʻole o ka huaora A i kēlā me kēia manawa. Ma muli o kona hiki ke hōʻiliʻili i ke ake, hiki i loko o ke kino ke lawa i nā nui no ka manawa lōʻihi. Me ka hoʻoikaika kino ikaika a me nā loli pili i ka makahiki, hoʻopau ʻia ia me ka ikaika loa, akā naʻe, ʻaʻole ia e koi ʻia e ʻoi aku i ka maʻamau o kēlā me kēia lā.

Hiki i ka Retinol overdose ke alakaʻi i nā hopena aʻe:

• nā hoʻololi pathological i ke ake;
• ʻona ʻona;
• melemele o nā membrane mucous a me ka ʻili;
• hypertension intracranial.

E nānā i ka wikiō: Haaheo Nā Kanaka Paniolo (Mei 2025).