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林产化学与工业

林产化学与工业 ›› 2013, Vol. 33 ›› Issue (2): 49-54.doi: 10.3969/j.issn.0253-2417.2013.02.008

• 研究报告 • 上一篇    下一篇

橡胶籽油中多不饱和脂肪酸的分离与表征

杨静1,3, 谢超1, 徐娟2, 黄元波1,3, 刘守庆2, 郑云武1,3, 郑志锋1,3   

  1. 1. 西南林业大学 材料工程学院, 云南 昆明 650224;2. 西南林业大学 理学院, 云南 昆明 650224;3. 西南林业大学 西南山地森林资源保育与利用省部共建教育部重点实验室, 云南 昆明 650224
  • 收稿日期:2012-10-10 修回日期:1900-01-01 出版日期:2013-04-30 发布日期:2013-04-30
  • 通讯作者: 郑志锋(1975-),男,副教授,博士,硕士生导师,主要从事生物质能源与材料的研究与教学;E-mail:zhengzhifeng@swfu.edu.cn。

Separation and Characterization of Polyunsaturated Fatty Acids from Rubber Seed Oil

YANG Jing1,3, XIE Chao1, XU Juan2, HUANG Yuan-bo1,3, LIU Shou-qing2, ZHENG Yun-wu1,3, ZHENG Zhi-feng1,3   

  1. 1. College of Materials Engineering, Southwest Forestry University, Kunming 650224, China;2. School of Science, Southwest Forestry University, Kunming 650224, China;3. Key Laboratory of Forest Resources Conservation and Use in the Southwest Mountains of China (SWFU), Ministry of Education, Southwest Forestry University, Kunming 650224, China
  • Received:2012-10-10 Revised:1900-01-01 Online:2013-04-30 Published:2013-04-30

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摘要： 采用尿素包合法对橡胶籽油中的多不饱和脂肪酸进行了分离。采用正交试验法对尿素包合反应条件进行了优化,并采用气相色谱法对分离的多不饱和脂肪酸组分进行了分析。研究结果表明,当尿素/脂肪酸质量比为55:30(g:g),甲醇与尿素比为130:55 (mL:g),在65 ℃条件下反应 150 min,并在-5 ℃条件下晶化18 h,可获得回收率超过35 %、纯度大于96 %的多不饱和脂肪酸;多不饱和脂肪酸主要成分为:56.95 %的亚油酸(C18:2)和40.28 %的亚麻酸(C18:3),仅含有2.77 %的油酸(C18:1)。

关键词: 橡胶籽油, 多不饱和脂肪酸, 尿素包合

Abstract: The separation of polyunsaturated fatty acids (PUFA) from rubber seed oil by urea complex fractionation was studied. Reaction conditions of urea inclusion were optimized using orthogonal test method. The fatty acid composition was determined after ethyl esterification by gas chromatography (GC). The maximum purity of PUFA was over 96 % with the ratio of recovery up to 35 % under optimal conditions at urea-to-fatty acids ratio of 55:30(g:g), methanol-to-urea ratio of 130:55(mL:g), reaction temperature of 65 ℃, reaction time of 150 min, crystallization temperature of -5 ℃, and crystallization time of 18 h, respectively. The components of separated PUFA from rubber seed oil contain 56.95 % of linoleic acid (C18:2), 40.28 % of linolenic acid (C18:3), respectively. Only 2.77 % of oleic acid (C18:1) was charaeterized in the product.

Key words: rubber seed oil, polyunsaturated fatty acids, urea inclusion

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