光皮树果实不同部位油脂组成分析_肖志红 . Analysis of oil composition in different parts of Comus wilsoniana Wanger. fruit

Abstract

Oil content and fatty acid composition of pulp,kernel and seed nucleus in Cornus wilsoniana Wanger.fruit were analyzed.Compared with the total oil content of full fruit,oil content from pulp accounted for 66.95%,the oil content from kernel occupied 16.96%,and the oil content from seed nucleus was about 16.09%.The fatty acid composition of the oil in every part of Cornus wilsoniana Wanger.fruit was also analyzed by gas chromatography.The result showed that the oil of every part contained the same composition of fatty acid(palmitic acid,linoleic acid,oleic acid,stearic acid and arachic acid),while the relative content was different.In pulp of Cornus wilsoniana Wanger.fruit,there were palmitic acid of 24.41%,linoleic acid of 32.46%,oleic acid of 30.07%,stearic acid of 1.64% and arachic acid of 3.09%;in kernel there were palmitic acid of 12.48%,linoleic acid of 54.79%,oleic acid of 26.93%,stearic acid of 2.18% and arachic acid of 1.63%;in seed nucleus there were palmitic acid of 6.61%,linoleic acid of 58.80%,oleic acid of 22.32%,stearic acid of 2.03% and arachic acid of 0.65%.