调和油对大鼠血脂及脂质过氧化的影响

目的为改善人群油脂营养提供科学依据。方法３０只ＳＤ系雄性大鼠随机分为３组，分别给予基础饲料、含１２％猪油饲料及含１２％调和油（主要由豆油和菜油调制而成）饲料喂饲２１ｄ。结果猪油组（阳性对照）大鼠血清总胆固醇（ＴＣ）、血清ＴＣ／ＨＤＬｃ及血清脂质过氧化产物丙二醛（ＭＤＡ）水平均显著高于基础组（阴性对照，Ｐ＜０．０５）；调和油组血清ＴＣ、甘油三酯（ＴＧ）及ＭＤＡ水平均显著低于猪油组（Ｐ＜０．０５）；调和油组血清ＴＧ显著低于基础组（Ｐ＜０．０５）。结论调和油可以作为比较理想的食用油。

Effects of Blend Oil on Blood Lipid and Lipid Peroxidation in Rats

Objective This paper was intended to provide scientific foundation for improving population nutrition of lipids. Methods 30 male rats(SD strain) were randomly divided into 3 groups and fed with basic diet,semisynthetic diets containing 12%lard or blent oil(mainly composed of soybean oil and rape-seed oil)respectively. Results After rats were fed for 21 days,the levels of serum TC, TC/HDLc and lipid peroxidation products(MDA)in the lard feeding group(positive control)were significantly higher than those in the basic diet feeding group(negative control,P<0.05);the levels of serum TC,TG and MDA in the blent oil group were markedly lower than those in the lard feeding group(P<0. 05 );the level of serum TG in the blend oil group was obviously lower than that in control(P<0.05). Conclusions The blend oil could be used as a kind of fairly ideal edible oils.