TY - JOUR
T1 - Deacidification of rice bran oil using a deep eutectic solvent
AU - Jannah, A.
AU - Maulita, F.
AU - Zullaikah, S.
AU - Rachmaniah, O.
AU - Rachimoellah, M.
AU - Ju, Y. H.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2021/2/23
Y1 - 2021/2/23
N2 - The liquid-liquid extraction (LLE) will be applied in this study using a deep eutectic solvent (DES) of choline chloride and ethylene glycol with a 1:2 molar ratio. The LLE process will compare the results of removing free fatty acids (FFAs) between single and multiple extractions. Rice bran oil (RBO) with various initial FFAs contents (5%, 10%, 20%, 30%, 40%, and 60%, w/w) and γ -oryzanol (2%, w/w) are used in this study. Deacidification is carried out by mixing RBO with a certain level of FFAs and γ -oryzanol, a volume ratio of RBO: solvent (DES) = 1:2, and total extraction time in multiple LLE was 1200 min. (240 min./stage x 5 stage). It was obtained that the removal of FFAs in the single LLE are 10.04%, 23.28%, 13.43%, 17.55%, and 17.49%, respectively, while in the multiple LLE are 48.64%, 60.37%, 63.13%, 63.15%, and 41.79%, respectively, for RBO with an initial FFAs content of 5%, 10%, 20%, 30%, 40% and 60%, respectively. The losses of γ-oryzanol in the single LLE are 48.32%, 61.26%, 73.32%, 74.22%, and 89.59%, respectively, while in the multiple LLE are 87.16%, 95.58%, 99.14%, 99.77%, and 99.77%, respectively, for RBO with an initial FFAs content of 5%, 10%, 20%, 30%, 40% and 60%, respectively. Deacidification of RBO using DES in the multiple LLE removed FFAs 3.63 times higher than that in the single LLE. However, the losses of γ-oryzanol increased in the multiple LLE which is 1.43 times higher than that in the single LLE.
AB - The liquid-liquid extraction (LLE) will be applied in this study using a deep eutectic solvent (DES) of choline chloride and ethylene glycol with a 1:2 molar ratio. The LLE process will compare the results of removing free fatty acids (FFAs) between single and multiple extractions. Rice bran oil (RBO) with various initial FFAs contents (5%, 10%, 20%, 30%, 40%, and 60%, w/w) and γ -oryzanol (2%, w/w) are used in this study. Deacidification is carried out by mixing RBO with a certain level of FFAs and γ -oryzanol, a volume ratio of RBO: solvent (DES) = 1:2, and total extraction time in multiple LLE was 1200 min. (240 min./stage x 5 stage). It was obtained that the removal of FFAs in the single LLE are 10.04%, 23.28%, 13.43%, 17.55%, and 17.49%, respectively, while in the multiple LLE are 48.64%, 60.37%, 63.13%, 63.15%, and 41.79%, respectively, for RBO with an initial FFAs content of 5%, 10%, 20%, 30%, 40% and 60%, respectively. The losses of γ-oryzanol in the single LLE are 48.32%, 61.26%, 73.32%, 74.22%, and 89.59%, respectively, while in the multiple LLE are 87.16%, 95.58%, 99.14%, 99.77%, and 99.77%, respectively, for RBO with an initial FFAs content of 5%, 10%, 20%, 30%, 40% and 60%, respectively. Deacidification of RBO using DES in the multiple LLE removed FFAs 3.63 times higher than that in the single LLE. However, the losses of γ-oryzanol increased in the multiple LLE which is 1.43 times higher than that in the single LLE.
UR - http://www.scopus.com/inward/record.url?scp=85102441006&partnerID=8YFLogxK
U2 - 10.1088/1755-1315/649/1/012029
DO - 10.1088/1755-1315/649/1/012029
M3 - Conference article
AN - SCOPUS:85102441006
SN - 1755-1307
VL - 649
JO - IOP Conference Series: Earth and Environmental Science
JF - IOP Conference Series: Earth and Environmental Science
IS - 1
M1 - 012029
T2 - Sustainable Islands Development Initiatives International Conference 2019, SIDI IC 2019
Y2 - 2 September 2019 through 3 September 2019
ER -