The physicochemical and thermal properties of Malaysian high free fatty acid crude palm oil

Murad Awadh Bahadi, Jumat Salimon, Abd Wali M Japir

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

This study was carried out to determine the physicochemical properties and the thermal behavior of Malaysian high free fatty acid crude palm oil (HFFA-CPO). The physicochemical properties showed that the free fatty acid (FFA %), acid value, iodine value, saponification value, unsaponifiable matter, hydroxyl value, specific gravity, refractive index at 28°C, moisture content, viscosity at 28°C and colour at 28°C values were 9.4±0.1 %, 21.3±0.1 mg/g, 50.6±0.2 mg/g, 203.1±0.1 mg/g, 0.7±0.1%, 43.4±0.2 mg/g, 0.878 g/ml, 1.4669, 0.6 %, 52 cP and 50R-40Y respectively. Gas chromatography (GC) was used to determine the fatty acid (FA) composition in HFFA-CPO. The fatty acids were found to be comprised mostly with 45.7 % palmitic acid (C16:0), 39.5 % oleic acid (C18:1), 9.4 % linoleic acid (C18:2) and 4.3 % stearic acid (C18:0). The analysis of triacylglycerol components with high performance liquid chromatography (HPLC) has resulted with 3.5 % triunsaturated (OOO, OLL and OLO), 32.7 % monosaturated (POO, PLO, SOO and PLL), 35.7 % disaturated (MLP, PPL, PPO, POS and SOS) and 2.32 % trisaturated fatty acids (PPP and PPS). The differential scanning calorimetry (DSC) showed that the crystallization of TAG displayed two major exothermic regions of HFFA-CPO with the di and trisaturated TAG at 23.11°C and the di and triunsaturated TAG at 9.31°C. The melting curve displayed multiple endothermic peak regions at 25.13°C and 35.31°C could be attributed to the di and trisaturated TAGs. While the peaks at 0.95°C, 6.94°C and 9.77°C could be attributed to the mono, di and triunsaturated TAGs.

Original languageEnglish
Title of host publication2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium
PublisherAmerican Institute of Physics Inc.
Volume1784
ISBN (Electronic)9780735414464
DOIs
Publication statusPublished - 17 Nov 2016
Event2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016 - Selangor, Malaysia
Duration: 13 Apr 201614 Apr 2016

Other

Other2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016
CountryMalaysia
CitySelangor
Period13/4/1614/4/16

Fingerprint

fatty acids
crude oil
thermodynamic properties
acids
palmitic acid
density (mass/volume)
oleic acid
liquid chromatography
gas chromatography
moisture content
iodine
heat measurement
melting
crystallization
refractivity
viscosity
color
scanning
curves

Keywords

  • High free fatty crude palm oil
  • physicochemical properties
  • thermal properties

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bahadi, M. A., Salimon, J., & Japir, A. W. M. (2016). The physicochemical and thermal properties of Malaysian high free fatty acid crude palm oil. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium (Vol. 1784). [030002] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966740

The physicochemical and thermal properties of Malaysian high free fatty acid crude palm oil. / Bahadi, Murad Awadh; Salimon, Jumat; Japir, Abd Wali M.

2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016. 030002.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bahadi, MA, Salimon, J & Japir, AWM 2016, The physicochemical and thermal properties of Malaysian high free fatty acid crude palm oil. in 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. vol. 1784, 030002, American Institute of Physics Inc., 2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016, Selangor, Malaysia, 13/4/16. https://doi.org/10.1063/1.4966740
Bahadi MA, Salimon J, Japir AWM. The physicochemical and thermal properties of Malaysian high free fatty acid crude palm oil. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784. American Institute of Physics Inc. 2016. 030002 https://doi.org/10.1063/1.4966740
Bahadi, Murad Awadh ; Salimon, Jumat ; Japir, Abd Wali M. / The physicochemical and thermal properties of Malaysian high free fatty acid crude palm oil. 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016.
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abstract = "This study was carried out to determine the physicochemical properties and the thermal behavior of Malaysian high free fatty acid crude palm oil (HFFA-CPO). The physicochemical properties showed that the free fatty acid (FFA {\%}), acid value, iodine value, saponification value, unsaponifiable matter, hydroxyl value, specific gravity, refractive index at 28°C, moisture content, viscosity at 28°C and colour at 28°C values were 9.4±0.1 {\%}, 21.3±0.1 mg/g, 50.6±0.2 mg/g, 203.1±0.1 mg/g, 0.7±0.1{\%}, 43.4±0.2 mg/g, 0.878 g/ml, 1.4669, 0.6 {\%}, 52 cP and 50R-40Y respectively. Gas chromatography (GC) was used to determine the fatty acid (FA) composition in HFFA-CPO. The fatty acids were found to be comprised mostly with 45.7 {\%} palmitic acid (C16:0), 39.5 {\%} oleic acid (C18:1), 9.4 {\%} linoleic acid (C18:2) and 4.3 {\%} stearic acid (C18:0). The analysis of triacylglycerol components with high performance liquid chromatography (HPLC) has resulted with 3.5 {\%} triunsaturated (OOO, OLL and OLO), 32.7 {\%} monosaturated (POO, PLO, SOO and PLL), 35.7 {\%} disaturated (MLP, PPL, PPO, POS and SOS) and 2.32 {\%} trisaturated fatty acids (PPP and PPS). The differential scanning calorimetry (DSC) showed that the crystallization of TAG displayed two major exothermic regions of HFFA-CPO with the di and trisaturated TAG at 23.11°C and the di and triunsaturated TAG at 9.31°C. The melting curve displayed multiple endothermic peak regions at 25.13°C and 35.31°C could be attributed to the di and trisaturated TAGs. While the peaks at 0.95°C, 6.94°C and 9.77°C could be attributed to the mono, di and triunsaturated TAGs.",
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