食品科学

• 工艺技术 • 上一篇    下一篇

正交试验优化牡丹籽油的溶剂萃取脱酸工艺

陆少兰1,吴苏喜1,2,*,宋艳秋1,张春丽1   

  1. 1.长沙理工大学化学与生物工程学院,湖南 长沙 410114;2.湖南博邦农林科技股份有限公司,湖南 常德 415700
  • 出版日期:2015-06-25 发布日期:2015-06-12
  • 通讯作者: 吴苏喜
  • 基金资助:

    湖南省科技计划项目(2014FJ4232)

Orthogonal Array Design for the Optimization of Deacidification of Peony Seed Oil by Solvent Extraction

LU Shaolan1, WU Suxi1,2,*, SONG Yanqiu1, ZHANG Chunli1   

  1. 1. School of Chemistry and Biology Engineering, Changsha University of Science and Technology, Changsha 410114, China;
    2. Hunan Bobang Agriculture and Forestry Science and Technology Co. Ltd., Changde 415700, China
  • Online:2015-06-25 Published:2015-06-12
  • Contact: WU Suxi

摘要:

研究牡丹籽毛油的溶剂萃取脱酸工艺,通过单因素试验和正交试验得到牡丹籽毛油的最佳萃取脱酸工艺条件为:以95%乙醇溶液为萃取溶剂,萃取次数3 次、料液比1∶2.5(g/mL)、萃取温度40 ℃、萃取时间20 min。在该最佳条件下,游离脂肪酸脱除率为93.12%,脱酸得油率为83.23%;牡丹籽油的酸值由10.18 mg KOH/g降到0.70 mg KOH/g,仍然保持牡丹籽油特有的清香味,达到后续深加工和开发利用的品质要求。

关键词: 牡丹籽油, 萃取脱酸, 乙醇, 脂肪酸脱除率, 得油率

Abstract:

The deacidification of crude peony seed oil by a solvent extraction method which can avoid the flavor
deterioration of peony seed oil when purified by alkali refining was optimized using single factor and orthogonal array
experiments. The optimal extraction conditions were determined to be 20 min extractions at 40 ℃ performed three times
using 95% ethanol as the extraction solvent with a solid to solvent ratio of 1:2.5 (g/mL), resulting in a removal rate of free
fatty acids of 93.12% and a deacidified oil yield of 83.23%. After the deacidification process, the acid value of peony seed
oil could be reduced from 10.18 to 0.70 mg KOH/g while maintaining the delicate scent of peony seed oil. The quality of
peony seed oil was suitable for subsequent processing.

Key words: peony seed oil, solvent extraction, ethanol, removal rate of free fatty acids, oil yield

中图分类号: