Study on the supercritical extraction process of star anise essential oil

doi:10.14088/j.cnki.issn0439-8114.2022.06.024

Abstract

Abstract: Star anise essential oil by supercritical CO₂was extracted, and the process was optimized by single factor experiment and response surface methodology. The optimized process conditions were the extraction temperature of 37 ℃, the extraction pressure of 17 MPa, the CO₂ flow of 25 L/h, and the extraction time of 95 min. Under these conditions, the average yield of star anise essential oil was 9.1%. Through the verification test, the response surface methodology is suitable for the process study of supercritical CO₂ extraction of star anise essential oil, which effectively reduces the number and cost of tests.

Key words: star anise essential oil, supercritical CO₂, extraction, response surface methodology

CLC Number:

TQ654

LI Zhen, HOU Dang-she, ZHANG Juan, REN Xiao-sai. Study on the supercritical extraction process of star anise essential oil[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(6): 127-130.

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