Optimization of Supercritical Carbon Dioxide and Co-solvent Ethanol Extraction of Wasted Peanut Skin Using Response Surface Methodology

Nicky Rahmana Putra, Ahmad Hazim Abdul Aziz, Lee Nian Yian, Wan Diyana Ramli, Mohd Azizi Che Yunus, A.C. Kumoro, Hadiyanto, S.A. Roces, L. Yung, X. Rong, A.W. Lothongkum, M.T. Phong (+3 others)
2018 MATEC Web of Conferences  
Peanut skin is a waste of peanut industries especially peanut butter industries. Peanut skin contain high antioxidant and high nutritional values. The objective of this study was to optimize the effect of parameters to obtain high extract yield and high antioxidant activity by using supercritical carbon dioxide and co-solvent ethanol. A Box-Behnken design (BBD) was used to optimize the extraction process at the condition temperature (40, 55 and 70 o C), rate of co-solvent ethanol (2.5, 5, and
more » ... anol (2.5, 5, and 7.5 % Vethanol/Vtotal), and extraction pressure (10, 20 and 30 MPa). The extraction time was 3 hours. The optimum condition to obtain yield of extraction and antioxidant activity 22.05 MPa, 62.76 °C and 6.03 %(Vethanol/Vsolvent) with 15.404 % yield extract and 94.040 % antioxidant activity. MATEC Web of Conferences 156, 02005 (2018)
doi:10.1051/matecconf/201815602005 fatcat:ufv2y5eqyne5hg75r2isfqqupa