Beta caroteneyog ib qho tshuaj antioxidant. Qee qhov kev tshawb fawb tau pom tias kev noj cov beta carotene txaus los ntawm kev noj zaub mov noj txhua hnub tuaj yeem txo qhov kev pheej hmoo ntawm kev tsim muaj ob hom mob ntev thiab tiv thaiv qog noj ntshav. Beta carotene muaj cov kev tawm hws me ntsis thiab tsis tu ncua, tuaj yeem ua kom cov metabolism ntawm daim tawv nqaij thiab nce ntshav kev, ua rau cov tawv nqaij ua kom zoo nkauj thiab du, thiab cov tawv nqaij ua xeb, uas muaj qhov tshwj xeeb rau kev zoo nkauj thiab tawv nqaij noj qab haus huv. Nyob rau tib lub sijhawm, carrots kuj tsim rau cov neeg muaj tawv qhuav, tawv nqaij, lossis cov neeg uas raug kev txom nyem los ntawm plaub hau lichen, tawv tawv dub, thiab zoo li daim tawv muag. Cov kev mob tshwm sim feem ntau ntawm cov beta carotene: cov tawv nqaij txhaws, cov quav muag xoob, nqaij tawv, mob pob txha, thiab lwm yam.
Kev siv cov beta carotene
Mas siv rau hauv cov khoom noj, cov khoom kho mob thiab cov tshuaj.
Khoom noj tau xim txiv kab ntxwv; txhim kho khoom noj khoom haus. Mas siv hauv margarine, mij, khoom qab zib, dej haus thiab zaub mov kev noj qab haus huv.
Raws li cov khoom noj khoom haus kom ruaj khov thiab cov zaub mov kom xim. Peb lub teb chaws tau hais tseg tias nws tuaj yeem siv rau txhua yam khoom noj, thiab yuav tsum siv cov khoom tsim nyog raws li kev xav tau ntawm kev tsim khoom.
Raws li kev pub vitamin cov khoom noj kom zoo ntxiv rau kev txhim kho thiab tus neeg sawv cev xim.
Cov khoom noj muaj txiaj ntsig thiab xim tawv nqaij. Raws li nqe lus GG; Kev Tu Tus Qauv rau Kev Siv Khoom Noj Khoom Noj Zoo Dua Qub (1993)" Tshaj tawm los ntawm Lub Chaw Haujlwm Saib Xyuas Kev Noj Qab Haus Huv, nws tuaj yeem siv cov tshuaj qab zib thiab cov zaub mov noj, qhov siv ntau tshaj yog 0.2g / kg. Lub cev ua haujlwm ntawm 0.6μg ntawm cov khoom no yog sib npaug rau 1 chav tsev thoob ntiaj teb (I · U ·) ntawm cov vitamin A. Tam sim no nws tau dav siv los ua daj xim hloov roj-soluble tar xim, xws li siv hauv qab zib, tshij, mayonnaise , thiab lwm yam uas thaum xub thawj muaj cov carotene, thiab dav siv hauv lwm cov rog, margarine, ua kom luv, khoom qab zib, ncuav, thiab lwm yam. Thaum siv rau hauv cov zaub mov oily, nws feem ntau yaj hauv cov roj muaj peev xwm xws li roj cottonseed roj lossis cov kev npaj ncua (cov ntsiab lus 30% )). Txawm tias tom qab tau diluted, nws tuaj yeem tiv thaiv β-carotene los ntawm oxidation. Feem ntau, cov tshuaj tiv thaiv kab mob xws li α-tocopherol, stearoyl ascorbate, thiab BHA yog ntxiv rau. Nws yog siv los ua xim ntxiv rau hauv qhov me me, xws li 1.37mg / kg rau margarine. Nws tuaj yeem siv ua ke nrog cov vitamin C hauv cov kua txiv hmab txiv ntoo kom txhim kho kev ruaj khov.