石家庄地区牛乳脂肪中脂肪酸成分的分析

Study on the constituents of the fatty acids from milk fat in Shijiazhuang

选取石家庄地区的牛乳样品,采用OP乳化剂提取出样品中的脂肪,对其进行甲酯化,用填充柱气相色谱法测定了其中的脂肪酸成分;采用面积归一法确定了主要的脂肪酸组成为月桂酸1.415%,豆蔻酸6.735%,十五烷酸0.646%,棕榈酸27.71%,棕榈油酸0.874%,十七烷酸0.46%,硬脂酸17.91%,油酸34.29%,亚油酸4.608%,亚麻酸1.013%,花生酸0.102%(均为质量分数)。

In this paper, Milk fat which was collected from Shi Jiazhuang was extracted by OP emulsifier. After methylation it was determined by GC with the column of 3%OV-101. The major contituents of the fatty acid which were analyzed by area nomalization were lauric acid 1.415%,myristic acid 6.735%,pentadecyl acid 0.646%,palmitic acid 27.71%,palmitoleic acid 0.874%,heptadecanoic acid 0.46%,stearic acid 17.91%,oleic acid 34.29%,linoleic acid 4.608%,linolenic acid 1.013%and eicosanoatic acid 0.102%.