食品科学 ›› 2010, Vol. 31 ›› Issue (24): 50-55.doi: 10.7506/spkx1002-6630-201024010

• 工艺技术 • 上一篇    下一篇

侧柏籽油的超声辅助提取及其脂肪酸组成分析

麻成金1,2,吴竹青2,黄 伟2,肖卓炳1,黄 群2   

  1. 1.林产化工工程湖南省重点实验室 2.吉首大学食品科学研究所
  • 收稿日期:2010-08-30 修回日期:2010-11-14 出版日期:2010-12-25 发布日期:2010-12-29
  • 通讯作者: 麻成金 E-mail:machengjin368@126.com
  • 基金资助:

    2009 年林产化工工程湖南省重点实验室开放基金项目(JDZ200902)

Ultrasound-assisted Extraction and Fatty Acid Composition of Biota Orientalis Seed Oil

MA Cheng-jin1,2,WU Zhu-qing2,HUANG Wei2,XIAO Zhuo-bing1,HUANG Qun2   

  1. 1. Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Zhangjiajie 427000, China;
    2.Institute of Food Science, Jishou University, Jishou 416000, China
  • Received:2010-08-30 Revised:2010-11-14 Online:2010-12-25 Published:2010-12-29
  • Contact: MA Cheng-jin E-mail:machengjin368@126.com

摘要:

以环己烷为提取溶剂,采用响应面法(RSM)优化超声波辅助提取侧柏籽油的工艺条件,在单因素试验基础上,选取液料比、提取时间、提取温度、超声波功率为影响因素,以侧柏籽油提取率为响应值,应用中心组合试验设计(central composite design,CCD)建立数学模型,进行响应面分析,并采用GC-MS 测定侧柏籽油的脂肪酸组成。结果表明,提取侧柏籽油的优化工艺条件为:液料比7:1(mL/g)、提取时间38min、提取温度55℃、超声波功率270W,在此工艺条件下,侧柏籽油提取率为93.47%;GC-MS 测定结果表明侧柏籽油中富含不饱和脂肪酸,总含量达到84.37%,其中油酸、亚油酸和亚麻酸的含量分别为28.41%、11.40% 44.56%。

关键词: 侧柏籽油, 超声波辅助提取, 工艺条件, 响应面分析, 气相色谱- 质谱分析

Abstract:

Oil in Biota orientalis seed was extracted using n-hexane with the assistance of ultrasound. Effects of liquid-to-material ratio, extraction time, extraction temperature and ultrasound power on the yield of oil were investigated by conducting single factor tests. Subsequently, a central composite design was employed and the results were analyzed by using response surface methodology. The optimal extraction conditions were as follows: liquid-to-material ratio 7:1 , extraction time 38 min, extraction temperature 55 ℃,ultrasound power 270 W. Under such conditions, the yield of the oil was 93.47%. Gas chromatography-mass spectrometry analysis indicated that the oil was abundant in unsaturated fatty acids, accounting for 84.37% of the total fatty acids and consisting of 28.4.1% of oleic acid , 11.40% of linoleic acid and 44.56% of linolenic acid.

Key words: Biota orientalis seed oil, ultrasound-assisted extraction, technical conditions, response surface analysis, GC-MS

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