Henninger M, Ulberth F
Department of Dairy Research and Bacteriology, Agricultural University, Vienna, Austria.
Z Lebensm Unters Forsch. 1996 Sep;203(3):210-5. doi: 10.1007/BF01192865.
Margarines and shortenings available in Austria were repeatedly sampled in 1991/1992 and the content of trans fatty acids (TFA) determined by using capillary GLC. Wide variations of the TFA contents with respect to intra- and inter-brand differences were observed. Diet margarines contained up to 1% TFA, while TFA concentrations in tub or stick margarines were much higher (15.7 +/- 5.8% and 21.3 +/- 5.3%, respectively). A sub-set of samples was also purchased in 1995 and a general reduction of the TFA content was noticed. Taking into account different market shares of certain margarine types, a weighted average of 15.7% TFA and 6.5% TFA was calculated for the 1991/1992 and the 1995 samples. Based on availability data the amount of TFA supplied with margarines was estimated to be 3.7 g per person per day, while a more accurate method of measuring dietary intakes, i.e. diet history and food frequency data, approximates the amount of TFA supplied with margarines to be 1.5 g per person per day for the 1991/1992 samples and 0.6 g for the 1995 samples.
1991年至1992年期间，对奥地利市场上的人造黄油和起酥油进行了多次抽样，并采用毛细管气相色谱法测定了反式脂肪酸（TFA）的含量。观察到不同品牌之间以及同一品牌内部的TFA含量存在很大差异。食用人造黄油的TFA含量高达1%，而桶装或棒状人造黄油中的TFA浓度则高得多（分别为15.7±5.8%和21.3±5.3%）。1995年还购买了一组样本，发现TFA含量普遍下降。考虑到某些类型人造黄油的不同市场份额，计算出1991/1992年和1995年样本的TFA加权平均值分别为15.7%和6.5%。根据可得数据，估计人造黄油提供的TFA量为每人每天3.7克，而一种更精确的测量饮食摄入量的方法，即饮食史和食物频率数据，估计1991/1992年样本中人造黄油提供的TFA量为每人每天1.5克，1995年样本为0.6克。
