TY - GEN
T1 - Deacidification of crude rice bran oil (Crbo) to remove ffa and preserve γ-oryzanol using deep eutectic solvents (des)
AU - Zullaikah, Siti
AU - Wibowo, Nizar Dwi
AU - Wahyudi, I. Made Gede Eris Dwi
AU - Rachimoellah, M.
N1 - Publisher Copyright:
© 2019 Trans Tech Publications Ltd, Switzerland.
PY - 2019
Y1 - 2019
N2 - High content of free fatty acids (FFA) in crude rice bran oil (CRBO) needs to be separated through deacidification. Generally, deacidification process that is widely used are chemical and physical processes which causes the loss of bioactive compounds (γ-oryzanol) and un-environmentally friendly. The liquid-liquid extraction (LLE) using deep eutectic solvents (DES) to remove FFA and preserve γ-oryzanol would be implemented in this study. DES with different hydrogen bond donor (HBD) and hydrogen bond acceptor (HBA) with certain molar ratio such as Choline Chloride (ChCl)-Ethylene glycol 1:2 (DES I), ChCl-Glycerol 1:1 (DES II), ChCl-Urea 1:2 (DES III), ChCl-Oxalic acid 1:2 (DES IV), and Betaine Monohydrate-Glycerol 1:8 (NADES) were used as solvent to extract FFA from dewaxed/degummed RBO (DDRBO) for certain extraction time (30, 60, 120, 180, and 240 min) and extraction temperature (30°C, 40°C, 50°C, 60°C, and 70°C) under stirring (200 rpm). Deacidification using DES I for 240 min. and temperature of 50oC was the optimum solvent to remove FFA (19.03 ± 2.33 %) and preserve γ-oryzanol (recovery of γ-oryzanol was 51.30 ± 1.77 %). The results also revealed that the longer time of extraction would be increased removal of FFA and decreased recovery of γ-oryzanol. The higher temperature of extraction would be increased removal of FFA. In this work, temperature of 50oC was the best extraction temperature of FFA since DES has highest solubility at this temperature.
AB - High content of free fatty acids (FFA) in crude rice bran oil (CRBO) needs to be separated through deacidification. Generally, deacidification process that is widely used are chemical and physical processes which causes the loss of bioactive compounds (γ-oryzanol) and un-environmentally friendly. The liquid-liquid extraction (LLE) using deep eutectic solvents (DES) to remove FFA and preserve γ-oryzanol would be implemented in this study. DES with different hydrogen bond donor (HBD) and hydrogen bond acceptor (HBA) with certain molar ratio such as Choline Chloride (ChCl)-Ethylene glycol 1:2 (DES I), ChCl-Glycerol 1:1 (DES II), ChCl-Urea 1:2 (DES III), ChCl-Oxalic acid 1:2 (DES IV), and Betaine Monohydrate-Glycerol 1:8 (NADES) were used as solvent to extract FFA from dewaxed/degummed RBO (DDRBO) for certain extraction time (30, 60, 120, 180, and 240 min) and extraction temperature (30°C, 40°C, 50°C, 60°C, and 70°C) under stirring (200 rpm). Deacidification using DES I for 240 min. and temperature of 50oC was the optimum solvent to remove FFA (19.03 ± 2.33 %) and preserve γ-oryzanol (recovery of γ-oryzanol was 51.30 ± 1.77 %). The results also revealed that the longer time of extraction would be increased removal of FFA and decreased recovery of γ-oryzanol. The higher temperature of extraction would be increased removal of FFA. In this work, temperature of 50oC was the best extraction temperature of FFA since DES has highest solubility at this temperature.
KW - Crude rice bran oil
KW - Deacidification
KW - Deep eutectic solvents
KW - Free fatty acids (FFA)
UR - http://www.scopus.com/inward/record.url?scp=85071933298&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.964.109
DO - 10.4028/www.scientific.net/MSF.964.109
M3 - Conference contribution
AN - SCOPUS:85071933298
SN - 9783035714340
T3 - Materials Science Forum
SP - 109
EP - 114
BT - Seminar on Materials Science and Technology
A2 - Noerochim, Lukman
PB - Trans Tech Publications Ltd
T2 - 4th International Seminar on Science and Technology, ISST 2018
Y2 - 9 August 2018 through 9 August 2018
ER -