中国市售食品中反式脂肪酸含量的现状研究

Survey of Trans Fatty Acids in Foods in Chinese Market

采用气相色谱和红外光谱相结合的方法,对2005年至2009年在中国市场上出售的52个著名品牌的167种食品中所含脂肪组成与反式脂肪酸(TFAs)含量进行了测定。检测结果表明,87%的被检食品中含有反式脂肪酸,其中,涂抹奶油、威化饼干、蛋糕、派类食品是反式脂肪酸(TFAs)含量较高的食品类别。"洋快餐"的套餐中,反式脂肪酸(TFAs)含量每份1.00～2.00g。包括"洋快餐"食品在内的许多食品标签中,有关脂肪含量的标注存在严重缺陷。加工食品的配方标识中,有关"部分氢化油"和反式脂肪酸(TFAs)的标注名称没有统一的标准。

In the present study,trans fatty acids content and composition of 167 food products of 52 national brand on the Chinese market were assayed with gas chromatography and infrared spectroscopy.The data indicated that 87% products contained trans fatty acids,and spreading margarine,wafer,cake,pie were the food of relatively high trans fatty acids.Especially in the combos of western-style fast food,trans fatty acids content up to 1.00～2.00 g per service,moreover,incomplete labeling of fat content and the ambiguous terms used to described trans fatty acids and hydrogenated oil were investigated in the ingredients of food above mentioned.