Nā huahana

Beta-carotene

ʻO Beta-carotene kahi carotenoid maoli i ʻike nui ʻia i nā mea kanu ʻōmaʻomaʻo a melemele a me nā huaʻai.ʻO ka Beta-carotene kahi pūhui tetraterpenoid, aia i ʻehā mau paʻa pālua isoprene.Loaʻa iā ia hoʻokahi apo beta-violone ma kēlā me kēia hopena o ka mole.Hiki ke hana ʻia ʻelua mole mole vitamin A ma ka hoʻomaha waena.Loaʻa iā ia nā paʻa pālua a me nā conjugates ma waena o nā mea paʻa ʻelua.Ua lōʻihi ka hoʻopili ʻana o nā molekule i nā chromophores paʻa pālua, no laila ua loaʻa iā lākou ka waiwai o ka lawe ʻana i ka māmā a lilo i melemele.ʻO nā ʻano nui o ka beta-carotene he all-trans, 9-cis, 13-cis a me 15-cis.Aia ma mua o 20 isomers o ka beta-carotene, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai a hiki ke hoʻoheheʻe iki ʻia i ka ʻaila ʻaila.Hiki ke hoʻoheheʻe ʻia i loko o ka aliphatic a me ka aromatic hydrocarbons, hiki ke hoʻoheheʻe ʻia i ka chloroform, paʻa ʻole i nā waiwai kemika, a maʻalahi hoʻi e oxidize i ka māmā a me ka wela.

Hiki ke hana ʻia ka Beta-carotene e ka synthesis kemika, ka ʻohi mea kanu a me ka fermentation microbial.E like me nā ʻano hana like ʻole, hiki ke hoʻokaʻawale ʻia i ʻelua mau ʻāpana: synthesis kemika o ka beta-carotene a me ka beta-carotene maoli.I kēia manawa, ʻo ka hapa nui o lākou he kemika.Ma muli o ka beta-carotene kūlohelohe maikaʻi ka anti-chromosomal aberration, ka hopena anti-cancer a me ka hana physiological ikaika, kiʻekiʻe ke kumukūʻai o ka beta-carotene maoli.Palua ia ma mua o nā kemika.

ʻIke ʻia ʻo Beta-carotene ʻo ia ke kumu o ka huaʻa A. ʻO ka beta-carotene synthesized mua i hoʻohana nui ʻia i ka meaʻai, nā mea hoʻonaninani a me nā huahana olakino.Me ka hoʻomohala ʻana o ka toxicology a me ka ʻenehana analytical, hōʻike ka noiʻi ʻoiai ʻoi aku ka kiʻekiʻe o ka maʻemaʻe o ka beta-carotene synthesized e ke ʻano kemika a haʻahaʻa ke kumu kūʻai, maʻalahi ke hoʻohui i kahi liʻiliʻi o nā mea ʻona i loko o nā huahana.No laila, me ka hoʻomau mau ʻana o ka ʻike, ʻo ka ʻili kūlohelohe o ka beta-carotene e lawe i kahi kūlana ikaika i ka mākeke.Akā, ma muli o ka waiwai momona o ka beta-carotene, ua kaupalena nui ʻia kāna noi.Ua hoʻonui kekahi mau haʻawina i ka hoʻoheheʻe wai o ka beta-carotene ma o ka saponification a me ka emulsification, akā he manawa lōʻihi kēia ʻano, ʻoi aku ka hopena o ka paʻa o ka beta-carotene, a ʻoi aku ka nui o ke kumukūʻai.ʻO ka unuhi ʻana o ka beta-carotene maoli, nā mea hoʻoheheʻe kūlohelohe i ka hapa nui o nā ʻano i hoʻohana ʻia i kēia manawa, a me ke koena o ka pilikia o nā mea hoʻoheheʻe ʻawaʻawa i kaohi ʻana i ka hoʻohana ʻana i nā huahana hoʻoheheʻe, e hopena i ka palekana o ka meaʻai a me nā pilikia haumia kaiapuni.Ua hōʻike pū ʻia ka unuhi ʻana o ka wai-soluble beta-carotene, akā ʻilihune ka wai-solubility o ka beta-carotene, maʻamau me ke kōkua o nā enzymes, no laila ke kiʻekiʻe ke kumukūʻai a maikaʻi ʻole ka noi.Ke hoʻohālikelikeʻia me keʻano o ka unuhi maʻamau,ʻo keʻano o ka ultrasonic extraction ka maikaʻi o ka maʻalahi, ke kiʻekiʻe o ka unuhiʻana a me ka manawa hana pōkole.No laila, ma ke ʻano he ala hou e huki ai i ka beta-carotene hiki ke hoʻoheheʻe ʻia i ka waiʻona, ʻoi aku ka maikaʻi o ka hoʻoheheʻe ʻana i ke kani ultrasonic i nā manaʻo noi ma kēia kahua.

Hoʻohana i ka beta-carotene

Ma ke ʻano he ʻano puaʻa hiki ke hoʻoheheʻe ʻia i ka aila, ua hoʻokipa maikaʻi ʻia ka beta-carotene e ka ʻoihana meaʻai no ka mea hiki i kona waihoʻoluʻu ke uhi i nā ʻōnaehana waihoʻoluʻu a pau mai ka ʻulaʻula a i ka melemele ma muli o kona ʻano ʻokoʻa.He kūpono loa ia no ka hoʻomohala ʻana i nā huahana ʻaila a me nā huahana protein, e like me ka margarine, nā huahana pulp i hoʻomaʻemaʻe ʻia, nā huahana meaʻai, nā noodles meaʻai wikiwiki a pēlā aku.