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Thermal analysis of failed-batch palm oil by differential scanning calorimetry

Thermal behavior of palm oil samples drawn from the batch crystallizers that failed during crystallization and of a control oil that was drawn from a batch that produced good crystallization were analyzed by differential scanning calorimetry under constant heating and cooling conditions. Four polymo...

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Main Authors: Che Man, Y.B., Swe, P.Z.
Format: Article
Published: Springer-Verlag 1995
Online Access:http://psasir.upm.edu.my/id/eprint/114540/
https://aocs.onlinelibrary.wiley.com/doi/10.1007/BF02577848
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spelling my.upm.eprints.1145402025-02-05T01:01:06Z http://psasir.upm.edu.my/id/eprint/114540/ Thermal analysis of failed-batch palm oil by differential scanning calorimetry Che Man, Y.B. Swe, P.Z. Thermal behavior of palm oil samples drawn from the batch crystallizers that failed during crystallization and of a control oil that was drawn from a batch that produced good crystallization were analyzed by differential scanning calorimetry under constant heating and cooling conditions. Four polymorphs-β'2, α, β'1, and β1-were observed, and their temperatures were tabulated. A rapid and sudden surge of heat demand was observed for samples from failed crystallizers. Less supercooling values were obtained from the control oil compared to the higher values for samples from failed crystallizers. In crystallization thermograms, a sharp high-temperature exotherm (high-T peak) and a broad low-temperature exotherm (low-T peak) were observed. Low-T peaks were found almost invariably stationary at -5.1 to -5.6°C, and high-T peaks varied depending on the saturation level of the oil. A new peak, sandwiched between the high-T and low-T peaks, was observed for the control oil. Springer-Verlag 1995 Article PeerReviewed Che Man, Y.B. and Swe, P.Z. (1995) Thermal analysis of failed-batch palm oil by differential scanning calorimetry. Journal of the American Oil Chemists' Society, 72 (12). pp. 1529-1532. ISSN 1558-9331; eISSN: 0003-021X https://aocs.onlinelibrary.wiley.com/doi/10.1007/BF02577848 10.1007/BF02577848
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Thermal behavior of palm oil samples drawn from the batch crystallizers that failed during crystallization and of a control oil that was drawn from a batch that produced good crystallization were analyzed by differential scanning calorimetry under constant heating and cooling conditions. Four polymorphs-β'2, α, β'1, and β1-were observed, and their temperatures were tabulated. A rapid and sudden surge of heat demand was observed for samples from failed crystallizers. Less supercooling values were obtained from the control oil compared to the higher values for samples from failed crystallizers. In crystallization thermograms, a sharp high-temperature exotherm (high-T peak) and a broad low-temperature exotherm (low-T peak) were observed. Low-T peaks were found almost invariably stationary at -5.1 to -5.6°C, and high-T peaks varied depending on the saturation level of the oil. A new peak, sandwiched between the high-T and low-T peaks, was observed for the control oil.
format Article
author Che Man, Y.B.
Swe, P.Z.
spellingShingle Che Man, Y.B.
Swe, P.Z.
Thermal analysis of failed-batch palm oil by differential scanning calorimetry
author_facet Che Man, Y.B.
Swe, P.Z.
author_sort Che Man, Y.B.
title Thermal analysis of failed-batch palm oil by differential scanning calorimetry
title_short Thermal analysis of failed-batch palm oil by differential scanning calorimetry
title_full Thermal analysis of failed-batch palm oil by differential scanning calorimetry
title_fullStr Thermal analysis of failed-batch palm oil by differential scanning calorimetry
title_full_unstemmed Thermal analysis of failed-batch palm oil by differential scanning calorimetry
title_sort thermal analysis of failed-batch palm oil by differential scanning calorimetry
publisher Springer-Verlag
publishDate 1995
url http://psasir.upm.edu.my/id/eprint/114540/
https://aocs.onlinelibrary.wiley.com/doi/10.1007/BF02577848
_version_ 1823276362382704640
score 13.23648

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