乌榄仁油的理化性质与脂肪酸组成分析

目的：从开发新油脂和提高经济价值角度出发，研究乌榄仁油的理化性质与脂肪酸组成。方法：采用气相色谱质谱联用法对不同压榨温度下提取的油脂进行脂肪酸组分测定。结果表明：乌榄仁的含油量高（65.71%）；其各项理化指标符合国家的相关规定，随着压榨温度的升高，色泽加深，气味更加愉悦；脂肪酸组成共有10种，主要成分为棕榈酸、硬脂酸、油酸、亚油酸，不饱和脂肪酸总量为63.47-67.15%，随着压榨温度升高，除亚油酸外其他脂肪酸成分均无显著性差异，与其他油脂脂肪酸的对比中发现其优点是亚油酸含量高；结论：乌榄仁的含油量高，脂肪酸成分好，亚油酸含量略有优势，具有开发前景，可为乌榄仁油的进一步加工利用提供科学依据。

Analysis of physicochemical property and fatty acid composition of kernel oil of Canarium pimela Leenh

Objective To study the physicochemical properties and fatty acid composition of the kernel oil of Canarium pimela Leenh. Methods The basic components of kernel oil of Canarium pimela Leenh were determined. The oil kernel oil of Canarium pimela Leenh was obtained by pressing at different temperatures, and its physicochemical properties were determined. The fatty acid composition of the samples was determined by gas chromatography-mass spectrometry. Results The oil content of the kernel oil from Canarium pimela Leenh was high (65.71%). The physical and chemical indexes were in line with the relevant national regulations. With the increase of pressing temperature, the color deepened and the smell became more pleasant. There were 10 kinds of fatty acid composition, the main composition were palmitic acid, stearic acid, oleic acid, linoleic acid. The total amount of unsaturated fatty acids were 63.47%?67.15%. With the increase of pressing temperature, there was no significant difference in the composition of fatty acids. Compared with other fatty acids, it had the advantage of high linoleic acid content. Conclusion Canarium pimela Leenh has high oil content, the fatty acid composition of oil is good, and the linoleic acid content is slightly superior, so it has a development prospect.