食品科学 ›› 2017, Vol. 38 ›› Issue (18): 272-279.doi: 10.7506/spkx1002-6630-201718042

• 工艺技术 • 上一篇    下一篇

超声辅助超临界CO2萃取鲵油工艺优化

任国艳,宋娅,康怀彬,肖枫,孙贺,赵冬,胡敢,王松军   

  1. (1.河南科技大学食品与生物工程学院,河南?洛阳 471023;2.河南省新资源食品工程技术中心,河南?洛阳 471023;3.河南洛阳华鲵生物科技有限公司,河南?洛阳 471023)
  • 出版日期:2017-09-25 发布日期:2017-09-04
  • 基金资助:
    “三区”人才支持计划项目(2015SQ041);企业委托项目(4009/22010041); 河南科技大学大学生研究训练计划项目(2016067)

Ultrasound-Assisted Supercritical Carbon Dioxide Extraction of Lipids from Chinese Giant Salamander (Andrias davidianus)

REN Guoyan, SONG Ya, KANG Huaibin, XIAO Feng, SUN He, ZHAO Dong, HU Gan, WANG Songjun   

  1. (1. College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China; 2. Henan Engineering Research Center of Food Material, Luoyang 471023, China; 3. Luoyang Huani Biological Technology Co. Ltd., Luoyang 471023, China)
  • Online:2017-09-25 Published:2017-09-04

摘要: 以冻干鲵尾脂肪组织为原料,通过单因素试验和响应面试验确定超声辅助超临界CO2(ultrasound assisted supercritical-CO2,UASC-CO2)萃取鲵油的最佳工艺条件,并与超临界CO2萃取(supercritical-CO2,SC-CO2)鲵油的工艺条件进行比较,结果表明,UASC-CO2萃取鲵油的最佳工艺条件为萃取压强36?MPa、萃取温度43.5?℃、萃取时间120?min,在此条件下的鲵油萃取率为93.66%;而SC-CO2萃取鲵油的最佳工艺条件为萃取压强40?MPa、萃取温度43.5?℃、萃取时间120?min,在此条件下的鲵油萃取率为75.25%。在相同萃取温度和萃取时间,萃取压强较低的条件下,UASC-CO2萃取鲵油萃取率显著高于SC-CO2。理化性质指标和脂肪酸含量显示,2?种提取方法所得鲵油的品质没有显著变化。超声辅助处理方法在保持鲵油品质的同时,可以显著提高鲵油萃取率。

关键词: 鲵油, 超临界CO2, 响应面试验, 超声辅助, 萃取率

Abstract: The ultrasound-assisted supercritical?CO2 (UASC-CO2) extraction of lipids from the freeze-dried adipose tissue of Chinese giant salamander (Andrias davidianus) was optimized using a combination of one-factor-at-a-time method and response surface methodology and compared with conventional supercritical?CO2 extraction. The optimum conditions for UASC-CO2 extraction that provided maximum lipid yield (93.66%) were determined as follows: pressure, 36 MPa; temperature, 43.5 ℃; and time, 120 min. However, the optimum conditions for conventional supercritical?CO2 extraction that provided maximum lipid yield (75.25%) were as follows: pressure, 40 MPa; temperature, 43.5 ℃; and time, 120 min. It was observed that the yield of lipids was significantly higher by UASC-CO2 extraction method at lower pressures than by conventional supercritical?CO2 extraction at the same temperature and time. In addition, in terms of physicochemical properties and fatty acid content, no significant difference was seen between the two lipid extracts. The results showed that the yield of lipids from Chinese giant salamander could be significantly improved by ultrasound-assisted treatment, while still maintaining the product quality.

Key words: lipids from Chinese giant salamander, supercritical carbon dioxide, response surface methodology, ultrasound-assisted pretreatment, extraction efficiency

中图分类号: