全缘叶栾树种子脂肪分析

[目的]分析全缘叶栾树种仁含油量及其油中脂肪酸成分。[方法]用索氏抽提器提取全缘叶栾树种子油,计算种子含油量;种子油脂肪酸甲酯化后用气相色谱-质谱联用仪测定其成分。[结果]全缘叶栾树种仁含油量达54.04%。种子油中含5种饱和脂肪酸和3种不饱和脂肪酸,其中不饱和脂肪酸含量达75.26%,主要包括油酸(31.07%)、二十碳烯酸(35.07%)和芥酸(9.12%)。全缘叶栾树种子油具有较高的营养价值,但种子油中不含营养价值更高的多不饱和脂肪酸,而且含有不易消化的芥酸和花生酸。[结论]全缘叶栾树种子油具有较高的营养价值,但其能否作为食用油,还需进行相关的毒理学研究。

Analysis on Fat in Koelreuteria bipinnata Var. integrifolia T. Chen Seed

[Objective] The study aimed to analyze the oil content in seed kernel and the components of fatty acid in the seed oil of Koelreuteria bipinnata Var.integrifolia T.Chen.[Method] The seed oil of K.bipinnata was extracted with soxhlet extraction and the oil content in seeds was calculated.The component of fatty acid in seed oil was detected with gas chromatograph-mass spectrometer after the fatty acid being methyl esterified.[Result] The oil content in seed kernel of K.bipinnata reached 54.04%.There were 5 saturated fatty acids and 3 unsaturated fatty acids in seed oil,among which,the content of unsaturated fatty acid reached 75.26%,and the unsaturated fatty acid mainly contained oleic acid(31.07%),eicosenoic acid(35.07%) and erucic acid(9.12%). The nutrition value of seed oil of K.bipinnata was higher,but in which there were no polyunsaturated fatty acid with more higher nutrition value and there were erucic acid and arachidic acid that indigestible in the oil.[Conclusion] The seed oil of K.bipinnata had higher nutrition value,but whether it could be used as edible oil needs to make the toxicological study.