食品科学 ›› 2011, Vol. 32 ›› Issue (20): 108-113.doi: 10.7506/spkx1002-6630-201120023

• 工艺技术 • 上一篇    下一篇

响应面法优化茶叶籽油超临界二氧化碳萃取工艺

麻成金1,2,吴竹青1,黄 伟1,冯 磊1,彭忠瑾1,向勇平3   

  1. 1.吉首大学食品科学研究所 2.吉首大学 植物保护与利用湖南省高校重点实验室 3.湖南省古丈县茶叶事业管理局
  • 出版日期:2011-10-25 发布日期:2011-10-12
  • 基金资助:
    2009 年湖南省科技厅资助项目(2009NK3119)

Optimization of Supercritical Carbon Dioxide Extraction Process for Tea Seed Oil by Using Response Surface Methodology

MA Cheng-jin1,2,WU Zhu-qing1,HUANG Wei1,FENG Lei1,PENG Zhong-jin1,XIANG Yong-ping3   

  1. (1. Institute of Food Science, Jishou University, Jishou 416000, China;2. Key Laboratory of Plant Resources Conservation and Utilization of Hunan Province, Jishou University, Jishou 416000, China; 3. Tea Project Management Bureau of Guzhang County, Guzhang 416300, China)
  • Online:2011-10-25 Published:2011-10-12

摘要: 采用响应面法优化超临界CO2萃取茶叶籽油的工艺条件。在单因素试验基础上,选择萃取压力、萃取温度、分离温度、萃取时间为影响因素,以茶叶籽油得率为响应值,应用中心组合Box-behnken试验设计建立数学模型,进行响应面分析。结果表明,超临界CO2萃取茶叶籽油的最优工艺条件为:萃取压力29MPa、萃取温度43℃、分离温度36℃、萃取时间74min,该条件下,茶叶籽油得率达26.13%。

关键词: 茶叶籽油, 超临界CO2萃取, 工艺条件, 响应面分析

Abstract: Response surface methodology was employed to optimize the supercritical carbon dioxide extraction conditions of tea seed oil. On the basis of one-factor-at-a-time experiments, a mathematical model describing the effects of extraction pressure, extraction temperature, separation temperature and extraction time on oil yield was created using Box-Behnken experimental design and analyzed by response surface methodology. The optimal extraction conditions were found as follows: extraction pressure 29 MPa, extraction temperature 43 ℃, separation temperature 36 ℃, and extraction time 74 min, resulting in an oil yield of 26.13%.

Key words: tea seed oil, supercritical carbon dioxide extraction, technological conditions, response surface analysis

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