Supercritical CO2 Extraction of Plumula nelumbinis Oil Rich in γ-Sitosterol Using Response Surface Methodology

Dong Dong Jia; Rong Lan; Yong Yue Sun

doi:10.4028/www.scientific.net/AMR.864-867.213

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Physiological Variation of Tea Plant under Mercury Stress
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Isolation and Degradation Kinetics of the Quinoline Degradation Bacterium Strains from Coking Wastewater
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Supercritical CO₂ Extraction of Plumula nelumbinis Oil Rich in γ-Sitosterol Using Response Surface Methodology
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Organic Complex Chelators for Stabilization of Heavy Metals in Fly Ash
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Optimization of the Heterologous Expression of Sesuvium portulacastrum Betaine Aldehyde Dehydrogenase in Escherichia coli
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Continuous Biohydrogen Production with CSTR Reactor under High Organic Loading Rate Condition
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Study on the Competitive Adsorption of Dimethoate with Multiple Pesticides and Heavy Metals Based on Fractional Factorial Design
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Supercritical CO₂ Extraction of Plumula nelumbinis Oil Rich in γ-Sitosterol Using Response Surface Methodology

Abstract:

Supercritical CO₂ extraction of Plumula nelumbinis oil rich in γ-sitosterol was investigated with a 4² full factorial design and response surface analysis. At optimal conditions (P=35 MPa, T=55 C, d_p=0.22 mm, Q=2.0 L/min), the yield of the extracted oil was up to 12.2%, in which the concentration of γ-sitosterol was 7.38%, indicating that the γ-sitosterol contents in Plumula nelumbinis and its oil were much higher than that in other vegetables.