Department of Chemical Engineering, Sami Shamoon College of Engineering, Beer-Sheva, Israel.
J Agric Food Chem. 2010 Feb 24;58(4):2347-50. doi: 10.1021/jf903764d.
Four commercial brands of infant milk formula were investigated, and the amount of shelf lipid peroxidation was determined by measuring malondialdehyde (MDA) or, more exactly, thiobarbituric acid reactive substance (TBARS) levels, which are the end products of lipid peroxidation. TBARS level, indicated by MDA concentration, was higher in the vegetarian brands. The vegetarian brands are, as expected, more prone to oxidation than dairy brands, as they contain more unsaturated fats. The introduction of formate anion diminishes the peroxide amounts initially present in the milk samples as well as those induced by radiation-induced oxidation.
研究了四种商业品牌的婴儿配方奶粉，并通过测量丙二醛（MDA）或更准确地说，硫代巴比妥酸反应物质（TBARS）水平来确定货架脂质过氧化的量，这是脂质过氧化的终产物。素食品牌的 TBARS 水平（以 MDA 浓度表示）更高。正如预期的那样，素食品牌比奶制品品牌更容易氧化，因为它们含有更多的不饱和脂肪。甲酸根阴离子的引入减少了牛奶样品中初始存在的过氧化物量以及辐射诱导氧化产生的过氧化物量。
