Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)

The extraction of dehulled ground palm kernel using supercritical carbon dioxide (SC-CO2) as a solvent at a temperature of 80 ◦C and pressures ranging from 27.6 to 48.3 MPa was studied for 30–60 min. At 27.6, 34.5, 41.4 and 48.3 MPa the sample was extracted for 60, 40, 30 and 30 min, respectively,...

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Main Authors:	Sarker, Md. Zaidul Islam, Nik Ab Rahman, Nik Norulaini, Omar, Anuar, Abdul Kadir, Mohd. Omar
Format:	Article
Language:	English
Published:	Elsevier Inc. 2004
Subjects:	QD Chemistry
Online Access:	http://irep.iium.edu.my/24865/ http://irep.iium.edu.my/24865/ http://irep.iium.edu.my/24865/1/Seppur_2004.pdf

id	iium-24865
recordtype	eprints
spelling	iium-248652013-01-21T00:51:58Z http://irep.iium.edu.my/24865/ Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO) Sarker, Md. Zaidul Islam Nik Ab Rahman, Nik Norulaini Omar, Anuar Abdul Kadir, Mohd. Omar QD Chemistry The extraction of dehulled ground palm kernel using supercritical carbon dioxide (SC-CO2) as a solvent at a temperature of 80 ◦C and pressures ranging from 27.6 to 48.3 MPa was studied for 30–60 min. At 27.6, 34.5, 41.4 and 48.3 MPa the sample was extracted for 60, 40, 30 and 30 min, respectively, and the total oil achieved 37.5, 38.35, 41.0 and 44.75%, respectively. Within 30 min extraction at 27.6 MPa about 28.2% of oil was extracted and with increasing pressure, the extraction rate concurrently enhanced to 33.7, 41.0 and 44.75% at 34.5, 41.4, and 48.3 MPa, respectively. At 80 ◦C the solubility of the oil increased from about 4.01 to 14.11 g/100 g carbon dioxide as the pressure was increased from 27.6 to 48.3 MPa, however, maintaining constant temperature of 80 ◦C the solubility of oil increased with pressure. The extracted yield collected as about 1 g of oil in each fraction. The fatty acid composition of oil extracted varied with fractionation of the sample. Caprylic acid (C8), capric acid (C10), lauric acid (C12) and myristic acid (C14) were found to be decreased from the first to the last fraction (8th fraction). On the other hand there was an increase in palmitic (C16), stearic (C18:0), oleic (C18:1) and linoleic (C18:2) acids from first to the last fraction. Elsevier Inc. 2004 Article PeerReviewed application/pdf en cc_by_nd http://irep.iium.edu.my/24865/1/Seppur_2004.pdf Sarker, Md. Zaidul Islam and Nik Ab Rahman, Nik Norulaini and Omar, Anuar and Abdul Kadir, Mohd. Omar (2004) Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO). Separation and Purification Technology, 35 (1). pp. 55-60. ISSN 13835866 http://dx.doi.org/10.1016/S1383-5866(03)00130-8
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Sarker, Md. Zaidul Islam Nik Ab Rahman, Nik Norulaini Omar, Anuar Abdul Kadir, Mohd. Omar Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)
description	The extraction of dehulled ground palm kernel using supercritical carbon dioxide (SC-CO2) as a solvent at a temperature of 80 ◦C and pressures ranging from 27.6 to 48.3 MPa was studied for 30–60 min. At 27.6, 34.5, 41.4 and 48.3 MPa the sample was extracted for 60, 40, 30 and 30 min, respectively, and the total oil achieved 37.5, 38.35, 41.0 and 44.75%, respectively. Within 30 min extraction at 27.6 MPa about 28.2% of oil was extracted and with increasing pressure, the extraction rate concurrently enhanced to 33.7, 41.0 and 44.75% at 34.5, 41.4, and 48.3 MPa, respectively. At 80 ◦C the solubility of the oil increased from about 4.01 to 14.11 g/100 g carbon dioxide as the pressure was increased from 27.6 to 48.3 MPa, however, maintaining constant temperature of 80 ◦C the solubility of oil increased with pressure. The extracted yield collected as about 1 g of oil in each fraction. The fatty acid composition of oil extracted varied with fractionation of the sample. Caprylic acid (C8), capric acid (C10), lauric acid (C12) and myristic acid (C14) were found to be decreased from the first to the last fraction (8th fraction). On the other hand there was an increase in palmitic (C16), stearic (C18:0), oleic (C18:1) and linoleic (C18:2) acids from first to the last fraction.
format	Article
author	Sarker, Md. Zaidul Islam Nik Ab Rahman, Nik Norulaini Omar, Anuar Abdul Kadir, Mohd. Omar
author_facet	Sarker, Md. Zaidul Islam Nik Ab Rahman, Nik Norulaini Omar, Anuar Abdul Kadir, Mohd. Omar
author_sort	Sarker, Md. Zaidul Islam
title	Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)
title_short	Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)
title_full	Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)
title_fullStr	Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)
title_full_unstemmed	Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)
title_sort	supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (pko)
publisher	Elsevier Inc.
publishDate	2004
url	http://irep.iium.edu.my/24865/ http://irep.iium.edu.my/24865/ http://irep.iium.edu.my/24865/1/Seppur_2004.pdf
first_indexed	2023-09-18T20:37:11Z
last_indexed	2023-09-18T20:37:11Z
_version_	1777409124141629440

Supercritical enhancement for separation of lauric acid and oleic acid in palm kernel oil (PKO)

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