双峰驼乳和牛乳中长链多不饱和脂肪酸质量浓度测定

采用国标法检测8份新疆双峰驼乳和7份荷斯坦牛乳中5种长链多不饱和脂肪酸的质量浓度和质量分数。结果表明：新疆双峰驼乳中亚油酸（LA）、α-亚麻酸（ALA）、花生四烯酸（ARA）、二十碳五烯酸（EPA）和二十二碳六烯酸（DHA）的平均质量浓度分别为142.99、18.09、9.83、1.51和1.30 mg/100 g,各种脂肪酸占总脂肪酸的比率依次为2.88%、0.37%、0.20%、0.031%和0.026%;荷斯坦牛乳中LA、ALA、ARA、EPA和DHA的平均质量浓度分别为88.37、5.13、6.57、0.69和4.24 mg/100 g,各种脂肪酸占总脂肪酸的比率依次为2.86%、0.17%、0.21%、0.023%和0.14%。

Measure on the Concentration of the Long Chain Polyunsaturated Fatty Acids in Xinjiang Bactrian Camel Milk and Cattle milk

The concentration and percent of 5 kinds of long chain polyunsaturated fatty acids （ LCPUFA ） from 8 Xinjiang Bactrian Camel＇s milk and 7 cattle＇s milk were measured by national standard method. The results shows that： the average concentration of the linoleic acid （ LA ） , a-linolenic acid （ ALA ） , arachidonic acid （ ARA ） , eicosapentaenoic acid （ EPA ） and docosahexenoic acid （ DHA ） in the camel milk was 142.99, 18.09, 9.83, 1.51 and 1.30 mg/100 g, respectively. The percent of 5 kinds of fatty acids of the total fatty acids was 2.88%, 0.37%, 0.20%, 0.031% and 0.026%, respectively. The average concentration of the LA, ALA, ARA, EPA and DHA in the cattle milk was 88.37, 5.13, 6.57, 0.69 and 4.24 mg/100 g, respectively. The percent of 5 kinds of fatty acids account for the total fatty acids in the cattle milk was 2.86%, 0.17%, 0.21%, 0.023% and 0.14%, respectively.