TY - JOUR
T1 - Deacidification of palm oil using betaine monohydrate-carboxylic acid deep eutectic solvents
T2 - Combined extraction and simple solvent recovery
AU - Mulia, Kamarza
AU - Nasikin, Mohammad
AU - Krisanti, Elsa Anisa
AU - Zahrina, Ida
N1 - Funding Information:
Funding: This research was funded by the Indonesian Ministry of Research, Technology and Higher Education, Penelitian Dasar scheme contract number NKB-1780/UN2.R3.1/HKP.05.00/2019.
Funding Information:
This research was funded by the Indonesian Ministry of Research, Technology and Higher Education, Penelitian Dasar scheme contract number NKB-1780/UN2. R3.1/HKP.05.00/2019.
Publisher Copyright:
© 2020 by the authors.
PY - 2020/5/1
Y1 - 2020/5/1
N2 - Steam stripping is commonly used to remove free fatty acids from crude palm oil. An alternative deacidification method, solvent extraction performed at a much lower temperature, would preserve the natural antioxidants in the refined palm oil. In this work, palmitic acid was extracted using betaine monohydrate-propionic acid and betaine monohydrate-acetic acid deep eutectic solvents (DESs). The effect of temperature (40 °C to 80 °C), mass ratio of palm oil to solvent (2:1 to 1:2), and palmitic acid content in the palm oil feed (2% to 8% mass) on the distribution coefficient values of palmitic acid (0.44-0.93) was investigated. For the first time, a facile recovery of DESs could be accomplished by a cooling process where up to 98% of the palmitic acid separates as solid. A solvent extraction process for palm oil deacidification, employing a DES with a distribution coefficient value much higher than unity, will provide advantages over the steam stripping process.
AB - Steam stripping is commonly used to remove free fatty acids from crude palm oil. An alternative deacidification method, solvent extraction performed at a much lower temperature, would preserve the natural antioxidants in the refined palm oil. In this work, palmitic acid was extracted using betaine monohydrate-propionic acid and betaine monohydrate-acetic acid deep eutectic solvents (DESs). The effect of temperature (40 °C to 80 °C), mass ratio of palm oil to solvent (2:1 to 1:2), and palmitic acid content in the palm oil feed (2% to 8% mass) on the distribution coefficient values of palmitic acid (0.44-0.93) was investigated. For the first time, a facile recovery of DESs could be accomplished by a cooling process where up to 98% of the palmitic acid separates as solid. A solvent extraction process for palm oil deacidification, employing a DES with a distribution coefficient value much higher than unity, will provide advantages over the steam stripping process.
KW - Betaine monohydrate
KW - Deacidification
KW - Deep eutectic solvent
KW - Liquid-liquid extraction
KW - Palm oil
KW - Solvent recovery
UR - http://www.scopus.com/inward/record.url?scp=85085476164&partnerID=8YFLogxK
U2 - 10.3390/PR8050543
DO - 10.3390/PR8050543
M3 - Article
AN - SCOPUS:85085476164
SN - 2227-9717
VL - 8
JO - Processes
JF - Processes
IS - 5
M1 - 543
ER -