食品科学 ›› 2009, Vol. 30 ›› Issue (22 ): 112-115.doi: 10.7506/spkx1002-6300-200922023

• 工艺技术 • 上一篇    下一篇

蚕蛹油脂的超临界二氧化碳萃取工艺及分析

王 静1,郝小松2,孙林涛2,代黎娜1,陈开勋2,高贵田1 ,*   

  1. 1.陕西师范大学食品工程与营养科学学院 2.西北大学化工学院
  • 收稿日期:2009-07-06 出版日期:2009-11-15 发布日期:2010-12-29
  • 通讯作者: 高贵田1 ,* E-mail:gaoguitian2006@snnu.edu.cn
  • 基金资助:

    教育部大学创新计划项目(081071814);陕西省自然科学基金项目(2007C24)

Supercritical Carbon Dioxide Extraction of Oil from Silkworm Pupa

WANG Jing1,HAO Xiao-song2,SUN Lin-tao2,DAI Li-na1,CHEN Kai-xun2,GAO Gui-tian1,*   

  1. (1. College of Food Engineering and Nutritional Science, Shannxi Normal University, Xi'an 710062, China;
    2. College of Chemical Engineering, Northwest University, Xi'an 710069, China)
  • Received:2009-07-06 Online:2009-11-15 Published:2010-12-29
  • Contact: GAO Gui-tian1,* E-mail:gaoguitian2006@snnu.edu.cn

摘要:

采用四因素三水平正交试验方案对超临界CO2 流体萃取蚕蛹油脂的工艺参数进行研究,考察温度、压力、CO2 流量和分离Ⅰ压力等参数对油脂萃取量的影响效果。结果表明:萃取压力30MPa、萃取温度40℃、CO2 流量25kg/h、分离Ⅰ压力9MPa 为最佳参数组合,此条件下油脂萃取率可达30.53%,影响油脂萃取量的主要因素是压力。并对其脂肪酸组成及理化性质指标进行分析和测定,结果表明所得油样中游离脂肪酸较少,有害的过氧化值低、不饱和脂肪酸含量高、无臭味。

关键词: 超临界二氧化碳, 蚕蛹油, 萃取

Abstract:

The technical parameters in supercritical fluid extraction of silkworm pupa oil were optimized by conducting an orthogonal L9(3)4 test. Effects of operating conditions on the extraction yield were investigated, including extraction temperature, pressure, CO2 flow rate and pressure of the first separation. The optimum conditions for supercritical fluid extraction were as follows: extraction temperature 40 ℃, pressure 30 MPa, CO2 flow rate 25 kg/h and pressure of the first separation 9 MPa. Under such conditions, the extraction yield of silkworm pupa oil reached 30.53%. The extraction yield was mainly influenced by pressure. In the following, the composition of fatty acid and the physical and chemical characteristics of silkworm pupa oil were determined.

Key words: supercritical carbon dioxide, silkworm pupa oil, extraction

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