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林产化学与工业

林产化学与工业 ›› 2007, Vol. 27 ›› Issue (5): 107-112.

• 研究报告 • 上一篇    下一篇

超临界CO2萃取余甘子籽油及其成分研究

赵谋明, 刘晓丽, 罗维, 崔春, 赵强忠   

  1. 华南理工大学轻工与食品学院, 广东 广州 510640
  • 收稿日期:2006-12-05 修回日期:1900-01-01 出版日期:2007-10-30 发布日期:2007-10-30

Studies on Supercritical CO2 Extraction and Chemical Components of Oil from Emblica Seeds

ZHAO Mou-ming, LIU Xiao-li, LUO Wei, CUI Chun, ZHAO Qiang-zhong   

  1. College of Light Industry and Food, South China University of Technology, Guangzhou 510640, China
  • Received:2006-12-05 Revised:1900-01-01 Online:2007-10-30 Published:2007-10-30

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摘要： 利用超临界CO2萃取(SCDE)技术,采用响应面优化法(RSR),对广东惠州野生余甘子籽油的萃取进行了研究.结果表明,500g余甘子籽萃取余甘子籽油的最佳工艺条件为:萃取时间103min,萃取压力19 MPa,萃取温度35℃,在此工艺条件下余甘子籽油得率为2.13%±1.4%.通过GC-MS分析表明,余甘子籽油中含有1种脂肪酸,主要为油酸、亚油酸、亚麻酸和花生四烯酸等不饱和脂肪酸,总GC含量达91.33%.通过分析油的理化参数及生产成本表明,超临界CO2萃取余甘子籽油是一个好的方法,具有工业使用价值.

关键词: 余甘子籽油, 超临界CO2萃取, 脂肪酸

Abstract: The technic of extracting oil from emblica (Phyllanthus emblica Linn. )seeds was studied by supercritical CO2 extraction (SCDE), and method of response surface regression (RSR) was used to optimize the extraction under various conditions for the optimum yield. Optimal conditions were: extraction pressure 19 MPa, extraction temperature 35℃ and extraction time 103 min. Under optimal conditions, the yield is 26.13%±1.4%. After esterification the oil was analyzed by GC-MS, 16 compounds have been identified and their relative contents were determined by area integration. Emblica seed oil contains an appreciable amount of unsaturated fatty acids, which make up 91.33% of the total amount of fatty acid. Main unsaturated fatty acids are linolenic acid, linoleic acid and arachidonic acid. Analyses of physical-chemical parameters showed that SCDE method is a good method which can be used industrially.

Key words: emblica seed oil, supercritical CO2 extraction, fatty acid

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