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Effect of repeated heating on thermal behavior of crude palm oil

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Journal of the American Oil Chemists' Society

Abstract

Thermal behavior of crude palm oil (CPO) is important to determine the optimal fractionation process and product yield. In this study, the effects of repeated heating on thermal behavior of CPO were examined by differential scanning calorimetry. CPO was heated at 80°C for 5 min, and heating was repeated five times to simulate the common conditions experienced by an oil before reaching the refinery. The result revealed that the thermal behavior of CPO changed after heating. The change, however, occurred only in the behavior of the high-melting stearin peak but not in the low-melting olein peak. Overheating split the stearin peak at 17.30°C to two peaks at 18.88 and 17.30°C and formed a new peak at 11.28°C. Apparently, a new substance has been synthesized.

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References

  1. Johansson, G., and P.O. Pehlergard, Aspects on Quality of Palm Oil, edited by D.A. Earp and W. Newall, in International Developments in Palm Oil. The Proceedings of the Malaysian International Symposium on Palm Oil Processing and Marketing, Kuala Lumpur, 17–19 June 1976, The Intercorporated Society of Planters, Kuala Lumpur, Malaysia, 1977, pp. 203–222.

    Google Scholar 

  2. Hampson, J.W., and H.L. Rothbart, Triglyceride Specific Heat Determined by Differential Scanning Calorimetry, J. Am. Oil Chem. Soc. 60:1102–1104 (1983).

    CAS  Google Scholar 

  3. Hagemann, J.W., and J.A. Rothfus, Polymorphism and Transformation Energetics of Saturated Monoacid Triglycerides from Differential Scanning Calorimetry and Theoretical Modeling, Ibid.:1123–1131 (1983).

    CAS  Google Scholar 

  4. deMan, L., J.M. deMan, and B. Blackman, Polymorphic Behavior of Some Fully Hydrogenated Oils and Their Mixtures with Liquid Oil, Ibid.:1777–1780 (1989).

    CAS  Google Scholar 

  5. D’Souza, V., L. deMan, and J.M. deMan, Polymorphic Behavior of High-Melting Glycerides from Hydrogenated Canola Oil, Ibid.:907–911 (1991).

    CAS  Google Scholar 

  6. Herrera, M.L., and M.C. Anon, Crystalline Fractionation of Hydrogenated Sunflowerseed Oil. II. Differential Scanning Calorimetry (DSC), Ibid.:799–803 (1991).

    CAS  Google Scholar 

  7. Busfield, W.K., and P.N. Proschogo, Thermal Analysis of Palm Stearine by DSC, Ibid.:171–175 (1990).

    Article  CAS  Google Scholar 

  8. Busfield, W.K., and P.N. Proschogo, Hydrogenation of Palm Stearine: Changes in Chemical Composition and Thermal Properties, Ibid.:176–181 (1990).

    Article  CAS  Google Scholar 

  9. Che Man, Y.B., and P.Z. Swe, Thermal Analysis of Failed-Batch Palm Oil by Differential Scanning Calorimetry, Ibid.:1529–1532 (1995).

    Article  CAS  Google Scholar 

  10. Yap, P.H., deMan, J.M., and L. deMan, Polymorphism of Palm Oil and Palm Oil Products, Ibid.:693–697 (1989).

    CAS  Google Scholar 

  11. Kawamura, K., The DSC Thermal Analysis of Crystallization Behavior in Palm Oil I, Ibid.:753–758 (1979).

    CAS  Google Scholar 

  12. Kawamura, K., The DSC Thermal Analysis of Crystallization Behavior in Palm Oil, II, Ibid.:48–52 (1980).

    CAS  Google Scholar 

  13. Rossell, J.B., Differential Scanning Calorimetry of Palm Kernel Oil Products, Ibid.:505–511 (1975).

    CAS  Google Scholar 

  14. Taylor, A.M., The Crystallization and Dry Fractionation of Malaysian Palm Oil, Oleagineux 31:73–79 (1976).

    CAS  Google Scholar 

  15. Persmark, U., K.A. Melin, and P.O. Stahl, Palm Oil, Its Polymorphism and Solidification Properties, Rev. Ital. Del. Sos. Gra. 53:301–306 (1976).

    CAS  Google Scholar 

  16. Okiy, D.A., Interaction of Triglycerides and Diglycerides of Palm Oil, Oleagineux 33:625–628 (1978).

    CAS  Google Scholar 

  17. Swe, P.Z., Y.B. Che Man, and H.M. Ghazali, Polymorphic Study of High Melting Glycerides of Palm Olein Crystals, Mal. Oil Sci. Tech. 4:205–208 (1995).

    Google Scholar 

  18. Goh, S.H., Y.M. Choo, and A.S.H. Ong, Minor Components in Palm Oil, in PORIM International Oil Palm/Palm Oil Conference Technology, PORIM, Kuala Lumpur, Malaysia, 1988, pp. 95–101.

    Google Scholar 

  19. Wong, K.C., Oxidation of Some of the Components of Palm Oil, edited by D.A. Earp and W. Newall, in International Developments in Palm Oil. The Proceedings of the Malaysian International Symposium on Palm Oil Processing and Marketing, Kuala Lumpur, 17–19 June 1976, The Intercorporated Society of Planters, Kuala Lumpur, Malaysia, 1977, pp. 187–201.

    Google Scholar 

  20. Wong, C.Y., Survey of Malaysian Crude Palm Oil Quality Delivered to Refiners, Palm Oil in the Eighties, PORIM, Kuala Lumpur, 1983.

    Google Scholar 

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Author information

Authors and Affiliations

  1. Department of Food Technology, Universiti Pertanian Malaysia, 43400 UPM, Serdang, Malaysia

    T. Haryati & Y. B. Che Man

  2. Ngo Chew Hong Oils and Fats (M) Sdn. Bhd., 43500, Semenyih, Selangor, Malaysia

    P. Z. Swe

Authors
  1. T. Haryati
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  2. Y. B. Che Man
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  3. P. Z. Swe
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Haryati, T., Che Man, Y.B. & Swe, P.Z. Effect of repeated heating on thermal behavior of crude palm oil. J Amer Oil Chem Soc 74, 393–396 (1997). https://doi.org/10.1007/s11746-997-0096-y

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  • DOI: https://doi.org/10.1007/s11746-997-0096-y

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