Giacopini de Z María Isabel, Alonso Hilda V, Sánchez Josefina, García Ninoska, Veliz Lilia, Golfetto Iván, Bosch Virgilio
Sección de Lipidología, Instituto de Medicina Experimental, Facultad de Medicina, Universidad Central de Venezuela.
Invest Clin. 2013 Jun;54(2):171-9.
We analyzed in 31 subjects, regular guests of the University food service of the Central University of Venezuela (UCVFS), in Caracas, the effects of replacing sunflower oil, commonly used in the preparation of meals, by a mix of sunflower oil and palm olein 70/30 (v/v) respectively. Plasma concentrations of total cholesterol, low and very low density lipoproteins were not changed after 40 days of the substitution. On the contrary, concentrations of high density lipoprotein and total triglycerides increased. The resistance to the oxidation of low-density lipoproteins increased considerably (p < 0.01). Today this resistance is considered as a protective factor of great importance in the prevention of the initiation of the atherogenic process. Taking into account the favorable modifications of HDL cholesterol and the clear increased resistance to the oxidation of LDL, we think that palm olein, mixed with other oils with a high ratio linoleic/palmitic (sunflower, corn, soya an the likes), can be used as a healthy alternative in human nutrition.
我们对委内瑞拉中央大学大学餐饮服务中心（UCVFS）在加拉加斯的31位常客进行了分析，研究用葵花籽油和棕榈油精按70/30（v/v）混合的油分别替代通常用于膳食制备的葵花籽油的效果。替代40天后，总胆固醇、低密度和极低密度脂蛋白的血浆浓度没有变化。相反，高密度脂蛋白和总甘油三酯的浓度增加了。低密度脂蛋白的抗氧化能力显著增强（p < 0.01）。如今，这种抗氧化能力被认为是预防动脉粥样硬化过程起始的一个非常重要的保护因素。考虑到高密度脂蛋白胆固醇的有利变化以及低密度脂蛋白抗氧化能力明显增强，我们认为，棕榈油精与其他亚油酸/棕榈酸比例高的油（如葵花籽油、玉米油、大豆油等）混合后，可作为人类营养中的一种健康替代品。
