近年來關于食用油的使用讓人們很關心，其中壓榨油也(ye)是(shi)(shi)很多(duo)消費者認為比(bi)比(bi)浸出(chu)油更健(jian)康，比(bi)調和油更有營(ying)養，究(jiu)竟是(shi)(shi)怎(zen)么回事(shi)兒呢？食用(yong)油對于人(ren)體健(jian)康有何(he)重(zhong)要意義(yi)？每天我們應攝取(qu)多(duo)少食用(yong)油？

食(shi)用油(you)(you)(you)是(shi)人(ren)(ren)體能量的(de)主要來(lai)源之(zhi)一，一克食(shi)用油(you)(you)(you)可(ke)在(zai)體內氧化可(ke)產(chan)能37.56Kj（即(ji)9Kcal的(de)能量），也是(shi)人(ren)(ren)體維生素E的(de)首要來(lai)源，同時還(huan)是(shi)必(bi)需脂肪酸—亞(ya)油(you)(you)(you)酸和α-亞(ya)麻酸的(de)主要來(lai)源。中國居民膳食(shi)指(zhi)南推(tui)薦健康成人(ren)(ren)每天食(shi)用油(you)(you)(you)攝(she)入量應在(zai)25－30克。

壓榨法和浸(jin)出法是食用植物油制取的兩(liang)種(zhong)方(fang)法。壓榨油是否比浸(jin)出油更健康(kang)？兩(liang)種(zhong)方(fang)法是否有優劣(lie)之分(fen)？

壓榨(zha)(zha)法是(shi)用機械壓榨(zha)(zha)方(fang)(fang)式從油(you)(you)(you)料(liao)中(zhong)榨(zha)(zha)油(you)(you)(you)的(de)(de)方(fang)(fang)法，浸(jin)出法是(shi)采用食(shi)品工程上的(de)(de)萃(cui)取原(yuan)理，用國際上公認和通用的(de)(de)食(shi)品級(ji)溶劑從油(you)(you)(you)料(liao)中(zhong)抽提出油(you)(you)(you)脂的(de)(de)一種(zhong)(zhong)方(fang)(fang)法。這種(zhong)(zhong)萃(cui)取本(ben)質(zhi)是(shi)一種(zhong)(zhong)物理的(de)(de)溶解操作過程，萃(cui)取過程中(zhong)并不發(fa)生油(you)(you)(you)脂與(yu)溶劑的(de)(de)化學反應。所以無論是(shi)浸(jin)出油(you)(you)(you)還是(shi)壓榨(zha)(zha)油(you)(you)(you)，只要符合我國食(shi)用油(you)(you)(you)質(zhi)量(liang)標準和衛生標準，都是(shi)優質(zhi)安全的(de)(de)食(shi)用油(you)(you)(you)，均可放心食(shi)用。

 調和油(you)是否(fou)比(bi)單一植物油(you)更營養(yang)？調和油(you)與單一植物油(you)，消費(fei)者應(ying)如何(he)選擇(ze)？

調(diao)(diao)和油(you)(you)(you)(you)(you)(you)(you)又稱(cheng)調(diao)(diao)合油(you)(you)(you)(you)(you)(you)(you)，是將(jiang)兩(liang)種(zhong)或(huo)兩(liang)種(zhong)以(yi)(yi)(yi)上成(cheng)品油(you)(you)(you)(you)(you)(you)(you)按(an)照營養(yang)平衡或(huo)風(feng)味的需要，按(an)一定比例調(diao)(diao)配制(zhi)成(cheng)的食用(yong)(yong)油(you)(you)(you)(you)(you)(you)(you)。通過科學調(diao)(diao)配，食用(yong)(yong)油(you)(you)(you)(you)(you)(you)(you)的營養(yang)和風(feng)味得以(yi)(yi)(yi)改善，更適合于熘、炒、煎、炸或(huo)涼(liang)拌(ban)等日(ri)常(chang)烹(peng)調(diao)(diao)使(shi)用(yong)(yong)。調(diao)(diao)和油(you)(you)(you)(you)(you)(you)(you)一般選(xuan)用(yong)(yong)精煉大豆油(you)(you)(you)(you)(you)(you)(you)、菜(cai)籽(zi)油(you)(you)(you)(you)(you)(you)(you)、花(hua)生油(you)(you)(you)(you)(you)(you)(you)、葵(kui)花(hua)籽(zi)油(you)(you)(you)(you)(you)(you)(you)、棉籽(zi)油(you)(you)(you)(you)(you)(you)(you)等為(wei)主(zhu)要原料(liao)油(you)(you)(you)(you)(you)(you)(you)，配以(yi)(yi)(yi)一定數量(liang)的香(xiang)味油(you)(you)(you)(you)(you)(you)(you)或(huo)精煉過的稻(dao)米(mi)(mi)油(you)(you)(you)(you)(you)(you)(you)、玉(yu)(yu)米(mi)(mi)油(you)(you)(you)(you)(you)(you)(you)、油(you)(you)(you)(you)(you)(you)(you)茶(cha)籽(zi)油(you)(you)(you)(you)(you)(you)(you)、紅(hong)花(hua)籽(zi)油(you)(you)(you)(you)(you)(you)(you)、小麥(mai)胚油(you)(you)(you)(you)(you)(you)(you)等特種(zhong)油(you)(you)(you)(you)(you)(you)(you)脂。所(suo)以(yi)(yi)(yi)從油(you)(you)(you)(you)(you)(you)(you)的種(zhong)類(lei)上講，調(diao)(diao)合油(you)(you)(you)(you)(you)(you)(you)比單一植物(wu)油(you)(you)(you)(you)(you)(you)(you)更多，營養(yang)更全(quan)面些，但是話又說(shuo)回來(lai)(lai)，拿菜(cai)籽(zi)、玉(yu)(yu)米(mi)(mi)油(you)(you)(you)(you)(you)(you)(you)兩(liang)種(zhong)油(you)(you)(you)(you)(you)(you)(you)調(diao)(diao)來(lai)(lai)講，從經濟的角(jiao)度(du)(du)看，每(mei)種(zhong)油(you)(you)(you)(you)(you)(you)(you)放入的量(liang)是不(bu)確定的，因為(wei)對于調(diao)(diao)合油(you)(you)(you)(you)(you)(you)(you)沒有相(xiang)關的規(gui)定，也是說(shuo)里面即(ji)便放入一滴玉(yu)(yu)米(mi)(mi)油(you)(you)(you)(you)(you)(you)(you)也可(ke)以(yi)(yi)(yi)稱(cheng)之為(wei)調(diao)(diao)合油(you)(you)(you)(you)(you)(you)(you)。所(suo)以(yi)(yi)(yi)，從經濟的角(jiao)度(du)(du)講，選(xuan)擇調(diao)(diao)合油(you)(you)(you)(you)(you)(you)(you)，不(bu)如多買幾種(zhong)單一的油(you)(you)(you)(you)(you)(you)(you)，自己在家做飯(fan)時(shi)每(mei)餐的油(you)(you)(you)(you)(you)(you)(you)輪換(huan)著(zhu)(zhu)用(yong)(yong)，同樣可(ke)以(yi)(yi)(yi)達到調(diao)(diao)合的效果(guo)(guo)。所(suo)以(yi)(yi)(yi)消(xiao)費者如果(guo)(guo)想省(sheng)事選(xuan)調(diao)(diao)合油(you)(you)(you)(you)(you)(you)(you)，如果(guo)(guo)有時(shi)間講實惠(hui)可(ke)以(yi)(yi)(yi)多買幾種(zhong)單一的油(you)(you)(you)(you)(you)(you)(you)在家自己輪換(huan)著(zhu)(zhu)吃。