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

Abstract

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:

References

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