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

• Processing Technology • Previous Articles     Next Articles

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

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

CLC Number: