Diffusivity optimization of supercritical carbon dioxide extraction with co-solvent-ethanol from peanut skin
Peanut skin is a waste of industrial peanut butter that contains bioactive compound, which is used as antioxidant, anti-diabetic, anti-cancer, and anti-inflammatory. Supercritical carbon dioxide (SC-CO2) extraction as green technology is applied to extract peanut skin oil. The aim of this study is t...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit UTM Press
2018
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/85498/1/MohdAziziCheYunus2018_DiffusivityOptimizationofSupercriticalCarbonDioxide.pdf http://eprints.utm.my/id/eprint/85498/ http://dx.doi.org/10.11113/mjfas.v14n1.726 |
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| Summary: | Peanut skin is a waste of industrial peanut butter that contains bioactive compound, which is used as antioxidant, anti-diabetic, anti-cancer, and anti-inflammatory. Supercritical carbon dioxide (SC-CO2) extraction as green technology is applied to extract peanut skin oil. The aim of this study is to optimize the operational conditions of pressure, temperature, and percentage of co-solvent to obtain oil yield and diffusivity coefficient. Determination of diffusivity coefficient was needed to evaluate the mass transfer between solvent and solute. The operational conditions of SC-CO2 studied were different pressure (10, 20, 30 MPa), different temperature (40, 55, 70 °C and different co-solvent percentage (2.5, 5, and 7.5 % (Vethanol/Vsolvent)). The extraction time was 3 hours respectively. The optimum condition were 29.95 MPa, 40 °C and 6.49 % (Vethanol/Vsolvent) with 14.95 % yield and 8.47E-12 m2/s diffusivity coefficient. |
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