Mafuta a canola (kuchokera ku 'Mafuta a Canada') ndi mafuta ophika ophika komanso ophika. Malingana ndi Canola Council of Canada ndi Dipatimenti ya Ulimi ya United States, ndiyo yachitatu mafuta ochuluka kwambiri padziko lapansi. Canola imakhalanso ndi mafuta abwino chifukwa ndi opindulitsa kwambiri mafuta acids.
Mwamwayi, mafuta a canola akhala akudziwitsidwa ndi mauthenga onyenga komanso amanama omwe akudzinenera kuti ndi owopsa pa thanzi lanu.
Izi, mosapita m'mbali, ndizochabechabe, ndipo ndikufotokozera chifukwa chake.
Mafuta a canola amachokera ku mbewu zomwe zinakhazikitsidwa ku Canada kumbuyo kwa zaka za m'ma 1960 ndi makumi asanu ndi awiri pamene asayansi apeza momwe angapangire mtundu wa mafuta oopsa, otchedwa erucic acid, osatulutsa zomera. Erucic acid ndi mtundu wa mafuta a asidi omwe ndi oipa kwa minofu ya mtima.
Mitengo ya lero ya canola ilibe pafupifupi erucic asidi, kotero palibe ngozi kwa mtima (zosiyana kwenikweni, kwenikweni). Choncho ndikofunikira kumvetsa kusiyana pakati pa mafuta omwe amatha kupititsa patsogolo komanso mafuta a canola, omwe ali otetezeka bwino.
Pano pali momwe anthu amachitira ndi mafuta a canola
Anthu ena amathira mafuta a canola wamakono ndi mafuta omwe sagwiritsidwa ntchito mobwerezabwereza omwe amagwiritsidwa ntchito mu mafuta, hydraulic fluids, sopo, ndi zopaka. Koma kachiwiri, si mafuta a canola. Chimodzi mwa vutoli ndi chakuti anthu kunja kwa North America amagwiritsa ntchito mawu akuti 'rapeseed' pamene akukamba za mafuta a canola kapena mafuta omwe sagwidwa.
Ubwino wa Zaumoyo
Mafuta a canola ali ndi mafuta ochepetsetsa okhudzana ndi mafuta omwe ali ndi mafuta odzaza ndi mafuta ambiri . Ndicho chitsimikizo chabwino kwambiri cha mafuta a polyunsaturated, ndi chiŵerengero chabwino cha linoleic acid (ndi omega-6) kwa alpha-linolenic acid (omega-3) pafupifupi 2: 1. Mafuta a canola amakhalanso opanda mafuta opangira.
Kafukufuku amasonyeza kuti mafuta omwe amapezeka mu mafuta a canola akhoza kukhala ndi phindu la kolesteroloni ndipo amachepetsetsa kutentha kwa thupi, kotero kuti ndi bwino kudya zakudya zolimbana ndi zotupa.
Ndipotu, bungwe la US Food and Drug Administration limapereka chiganizo chotsatira pa zakudya zomwe zili ndi mafuta a canola, malinga ngati ali ndi mafuta otsika kwambiri m'thupi, mafuta okhutira ndi sodium:
Umboni wosagwirizana komanso wosatsimikiziridwa wa sayansi umasonyeza kuti kudya za supuni 1 ½ za mafuta a canola tsiku lililonse kungachepetse chiopsezo cha matenda a mtima chifukwa cha mafuta osakanizidwa mu mafuta a canola. Pofuna kuti phindu likhale lopindulitsa, mafuta a canola ndikutenga mafuta ochulukanso omwewo komanso osawonjezera kuchuluka kwa ziwerengero zomwe mumadya tsiku limodzi.
Mafuta a Canola ndi GMOs
Nthanga za canola zinayambika poyamba ndi njira zotsalira. Mbewu zamakono zamakono zatsopano zasinthidwa kuti zipirire mankhwala enaake a herbicides. Sayansi ndi kafukufuku amasonyeza kuti GMOs ndi zotetezeka, ndipo maphunziro ochuluka azachipatala achitidwa ndi mafuta a canola pa anthu.
Koma, ngati mukudandaula ndi zinthu zamtundu uwu, mafuta opezeka ndi organic and non-GMO canola amapezeka pamasitolo komanso zachilengedwe m'mabuku ambiri, akuti, ndi mayiko.
Zotsatira:
United States Department of Agriculture Economic Research Service. "Canola." http://www.ers.usda.gov/topics/crops/soybeans-oil-crops/canola.aspx.
Bungwe la United States Chakudya ndi Mankhwala. "Chidule cha Zomwe Zimayendera Zaumoyo Zogwirizana Ndizochita Zokakamizika." Http://www.fda.gov/Food/IzigawoPackagingLabeling/LabelingNutrition/ucm073992.htm.