Asgary Seddigeh, Nazari Bahar, Sarrafzadegan Nizal, Saberi Salbali, Azadbakht Leila, Esmaillzadeh Ahmad
Isfahan Cardiovascular Research Center, Isfahan University of Medical Sciences, Isfahan Iran.
J Res Med Sci. 2009 Jul;14(4):211-5.
Trans-fatty acids (TFAs), unsaturated fats with at least one double bond in the Trans configuration, are industrially formed in large quantities when vegetable oils are partially hydrogenated. This study was undertaken to quantify the amounts of the common fatty acids in several commercial oils marketing in Iran.
The most consumed commercially available brands of vegetable oils were randomly selected from products available in supermarkets. A 10g sample was drawn from each mixed sample and prepared for fatty acid analysis by gas chromatography (GC).
Palmitic acid (C16:0) and stearic acid (C18:0) jointly constituted 21% of total fatty acids in partially hydrogenated vegetable oils (PHVOs). More than one third of total fatty acids in Iranian PHVOs were Trans fats. TFAs constituted almost 1% and 3% of total fatty acids in Iranian cooking and frying oils. This study showed higher contents of TFAs in Iranian commercially available hydrogenated vegetable oils. Statistical Package for Social Sciences was used for all statistical analyses.
Although several studies reported multiple adverse effects of TFAs on human health, limited information is available about total fatty acid composition, particularly TFAs, in Iranian edible oils. Our findings indicated higher content of TFAs in Iranian commercially available PHVOs.
反式脂肪酸（TFAs）是指在反式构型中至少含有一个双键的不饱和脂肪，植物油在部分氢化过程中会大量产生这种工业产物。本研究旨在对伊朗市场上几种商业油中常见脂肪酸的含量进行量化。
从超市中随机选取最常消费的市售植物油品牌。从每个混合样本中抽取10克样品，并通过气相色谱法（GC）进行脂肪酸分析。
在部分氢化植物油（PHVOs）中，棕榈酸（C16:0）和硬脂酸（C18:0）共同占总脂肪酸的21%。伊朗部分氢化植物油中超过三分之一的总脂肪酸为反式脂肪。反式脂肪酸在伊朗烹饪油和煎炸油中分别占总脂肪酸的近1%和3%。本研究表明，伊朗市售氢化植物油中反式脂肪酸含量更高。所有统计分析均使用社会科学统计软件包。
尽管多项研究报告了反式脂肪酸对人体健康的多种不良影响，但关于伊朗食用油中总脂肪酸组成，特别是反式脂肪酸的信息有限。我们的研究结果表明，伊朗市售部分氢化植物油中反式脂肪酸含量更高。
