| 尾叶桉叶片脂肪酸成分的GC—MS分析 |
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| 引用本文： | 张婧,谢耀坚,杜阿朋,李天会,吴志华.尾叶桉叶片脂肪酸成分的GC—MS分析[J].桉树科技,2011(1):9-13. |
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| 作者姓名： | 张婧 谢耀坚 杜阿朋 李天会 吴志华 |
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| 作者单位： | 国家林业局桉树研究开发中心,广东湛江524022 |
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| 基金项目： | 广东省自然科学基金项目（9145624536-4000003）、湛江市财政资金科技专项竞争性分配项目（20102030244）和“林业重大公益性行业科研专项”（201104003） |
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| 摘 要： | 以索氏提取和超声波提取两种方法对尾叶桉U6桉叶油进行了提取，并利用GC—MS对其成分进行了分析。结·果表明：桉叶油中共检出8种脂肪酸成分，其中饱和脂肪酸6种，分别为十四酸、棕榈酸、硬脂酸、花生酸、二十四烷酸和二十八酸，多不饱和脂肪酸2种：亚油酸和α-亚麻酸；两种方法中索氏法的提取率（7．69％）明显高于超声波法（6．51％），而所得不饱和脂肪酸组成相同，索氏提取物中不饱和脂肪酸α-亚麻酸为18．93％，亚油酸为7．72％；超声波提取物中α-亚麻酸为30．31％，亚油酸为6．48％。
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| 关 键 词： | 尾叶桉 提取物 脂肪酸 多不饱和脂肪酸 气相色谱-质谱 |
Analysis of Fatty Acid Composition in the Leaves Oils of Eucalyptus urophylla by GC-MS |
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| Institution: | ZHANG Jing, XIE Yao - jian, DU A - peng, LI Tian - hui, WU Zhi - hua ( China Eucalypt Research Centre, Zhanjiang 524022, Guangdong, China ) |
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| Abstract: | The extraction from Eucalyptus urophylla U6 leaves with Soxhlet and Ultrasonic methods were analyzed by GC - MS. The results showed that there were 8 kinds of fatty acids were detected, of which 6 kinds of saturated fatty acids： tetradecanoate, hexadeeanoic acid, octadecanoic acid, eicosanoic acid, tetracosanoic acid and octacosanoic acid, and two kinds of polyunsaturated fatty acids, （Z, Z, Z） - 9, 12, 15 - octadecatrienoic acid and （Z, Z） - 9, 12 - octadecadienoic acid. Extraction rate of Soxhlet method （ 7.69% ） was higher than ultrasonic method （6.51% ） significantly, and the main composition of polyunsaturated fatty acid extracted with two methods were the same, the relative content of （Z, Z, Z） - 9, 12, 15 - octadecatrienoic acid and （Z, Z） - 9,12 - ectadecadienoic acid were 18.93% and 7.72% in Soxhlet extraction respectively, and 30.31% and 6.48% in Ultrasonic extraction respectively. |
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| Keywords: | Eucalyptus urophylla extraction fatty acid polyunsaturated fatty acid GC - MS |
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