两步法制取文冠果油工艺的研究

A Two-step Method for the Extraction of Oil from Xanthoceras Sorbifolia Bunge Seed

本研究采用两步法制取文冠果籽油,第一步在较低的温度下利用液压榨油机粗提文冠果油,测得压榨后饼中残油为15.23%。第二步用乙醚对压榨饼进行溶剂浸出制油,当溶剂倍数5倍,提取时间6 h,提取次数4次时,测得饼粕残油为1.34%。最后利用气相色谱分析了文冠果油的脂肪酸组成及含量,其中含有油酸、亚油酸,不饱和脂肪酸含量占92.12%。

In this study, Xanthoceras sorbifolia seed oil was extracted by a two-step method. At the first step, Xanthoceras sorbifolia wasroughly extracted at low temperature by oil press, and the bottom oil in the seed cake was 15.23%. At the second step, the seed cake was soaked in diethyl ether under the following conditions： solvent-material ratio of 5：1, extracting time of 6h, and extracting times of 4, under which thebottom oil was 1.34%. The contents of fatty acids in the final extracts were analysed by gas chromatograph. Results showed that the extracted oil contained oleic acid and linoleic acid and the total content of unsaturated fatty acid reached 92.12%.