Effects of process parameters on peanut skins extract and CO2 diffusivity by supercritical fluid extraction

3rd International Conference on Chemical Engineering Sciences and Applications 2017

Putra, N.R.^1 ; Yian, L.N.^2 ; Nasir, H.M.^2 ; Binti Idham, Z.^2 ; Yunus, M.A.C.^1,2

Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru

81310, Malaysia^1

Centre of Lipid Engineering and Advanced Research (CLEAR), Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, UTM Johor Bahru

81310, Malaysia^2

关键词: Effective diffusivities;    Extraction conditions;    Extraction pressure;    Mean particle size;    Nutritional value;    Process parameters;    Soxhlet extraction;    Supercritical carbon dioxides;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/334/1/012057/pdf
DOI  :  10.1088/1757-899X/334/1/012057

来源: IOP

【 摘 要 】

Peanut skins (Arachis hypogea) are an agricultural waste product which has received much attention because they contain high nutritional values and can be potentially utilized in difference industries. At present, only a few studies have been conducted to study the effects of parameters on the peanut skins oil extraction. Therefore, this study aimed to determine the best extraction condition in order to obtain the highest extract yield using supercritical carbon dioxide (SC-CO2) with co-solvent Ethanol as compared to Soxhlet extraction method. Diffusivity of carbon dioxide in supercritical fluid extraction was determined using Crank model. The mean particle size used in this study was 425 μm. The supercritical carbon dioxide was performed at temperature (40 - 70 °C), flow rate of co-solvent ethanol (0 - 7.5% Vethanol/Vtotal), and extraction pressure (10 - 30 MPa) were used in this studies. The results showed that the percentage of oil yields and effective diffusivity increase as the pressure, rate of co-solvent, and temperature increased.