Sterilization and extraction of palm oil from screw pressed palm fruit fiber using supercritical carbon dioxide

N.A., Nik Norulaini and Ahmad, Anees and Mohd. Omar, Fatehah and S. Banana, Adel Ashur and Sarker, Zaidul Islam and Ab. Kadir, Mohd. Omar (2008) Sterilization and extraction of palm oil from screw pressed palm fruit fiber using supercritical carbon dioxide. Separation and Purification Technology, 60 (3). pp. 272-277. ISSN 1383-5866

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Abstract

The supercritical carbon dioxide (SC-CO2) was successfully used in the complete sterilization as well as simultaneous extraction of oil from screw pressed palm fruit fiber. The studies were conducted at different temperatures (40, 50, 70 °C) and pressures (13.7, 20.7 MPa) for 60 min of extraction period. The bacteria, gram negative (Bacillus), present in the sample was completely killed at 20.7 MPa and 50 °C. Palmitic and oleic acid were found to be the major fatty acids in extracted oil. More saturated fatty acid were extracted at 50 °C and lower operating pressure (13.7 MPa). The unsaturated components, such as linoleic and oleic acids were extracted at higher pressures of 27.6 and 34.5 MPa, respectively. The fatty acids composition of the extracted oil analyzed using gas chromatography–mass spectrometry (GC/MS) includes caprylic, capric, lauric, myristic, palmitic, margaric, stearic, oleic, linoleic, linolenic, arachidic and gadoleic acids.

Item Type:Article
Keyword:Supercritical-CO2; Sterilization; Extraction; Fatty acids; Residual-palm-oil
Subject:Palm oil industry
Subject:Supercritical fluid extraction
Subject:Carbon dioxide
Faculty or Institute:Faculty of Food Science and Technology
Publisher:Elsevier
DOI Number:http://dx.doi.org/10.1016/j.seppur.2007.08.024
ID Code:16845
Deposited By: Khairil Ridzuan Khahirullah
Deposited On:24 May 2012 01:40
Last Modified:08 Nov 2012 04:04

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