Abstract
Cocoa butter equivalent (CBE) was prepared by enzymatic acidolysis reaction of substrate consisting of refined palm mid fraction oil and palmitic–stearic fatty acid mixture. The reactions were performed in a batch reactor at a temperature of 60 °C in an orbital shaker operated at 160 RPM. Different mass ratios of substrates were explored, and the composition of the five major triacylglycerols (TAGs) of the structured lipids was identified and quantified using cocoa butter certified reference material IRMM-801. The reaction resulted in production of cocoa butter equivalent with the TAGs' composition (1,3-dipalmitoyl-2-oleoyl-glycerol 30.7 %, 1-palmitoyl-2-oleoyl-3-stearoyl-rac-glycerol 40.1%, 1-palmitoy-2,3- dioleoyl glycerol 9.0 %, 1,3-distearoyl-2-oleoyl-glycerol 14.5 %, and 1-stearoyl-2,3-dioleoyl glycerol 5.7 %) and with onset melting temperature of 31.6 °C and peak temperature of 40.4 °C which are close to those of cocoa butter. The proposed kinetics model for the acidolysis reaction presented the experimental data very well. The results of this research showed that palm mid fraction oil TAGs could be restructured to produce value added product such as CBE.
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References
Mohamed, I. (2012). Lipase-catalyzed synthesis of cocoa butter equivalent from palm olein and saturated fatty acid distillate from palm oil physical refinery. Applied Biochemistry and Biotechnology, 168, 1405–1415.
Lipp, M., Simoneau, C., Ulberth, F., Anklam, E., Crews, C., Brereton, P., et al. (2001). Composition of genuine cocoa butter and cocoa butter equivalents. Journal of Food Composition and Analysis, 14, 399–408.
Bootello, M. A., Hartel, R. W., Garcés, R., Martínez-Force, E., & Salas, J. J. (2012). Evaluation of high oleic-high stearic sunflower hard stearins for cocoa butter equivalent formulation. Food Chemistry, 134, 1409–1417.
Abigor, R., Marmer, W., Foglia, T., Jones, K., DiCiccio, R., Ashby, R., et al. (2003). Production of cocoa butter-like fats by the lipase-catalyzed interesterification of palm oil and hydrogenated soybean oil. Journal of the American Oil Chemists' Society, 80, 1193–1196.
Chong, C. N., Hoh, Y. M., & Wang, C. W. (1992). Fractionation procedures for obtaining cocoa butter-like fat from enzymatically interesterified palm olein. Journal of the American Oil Chemists' Society, 69, 137–140.
Çiftçi, O. N., Fadıloğlu, S., & Göğüş, F. (2009). Conversion of olive pomace oil to cocoa butter-like fat in a packed-bed enzyme reactor. Bioresource Technology, 100, 324–329.
Liu, K.-J., Cheng, H.-M., Chang, R.-C., & Shaw, J.-F. (1997). Synthesis of cocoa butter equivalent by lipase-catalyzed interesterification in supercritical carbon dioxide. Journal of the American Oil Chemists' Society, 74, 1477–1482.
Tchobo, F. P., Piombo, G., Pina, M., Soumanou, M. M., Villeneuve, P., & Sohounhloue, D. C. K. (2009). Enzymatic synthesis of cocoa butter equivalent through transesterification of pentadesma butyracea butter. Journal of Food Lipids, 16, 605–617.
Undurraga, D., Markovits, A., & Erazo, S. (2001). Cocoa butter equivalent through enzymic interesterification of palm oil midfraction. Process Biochemistry, 36, 933–939.
Wang, H.-X., Wu, H., Ho, C.-T., & Weng, X.-C. (2006). Cocoa butter equivalent from enzymatic interesterification of tea seed oil and fatty acid methyl esters. Food Chemistry, 97, 661–665.
Mojović, L., Šiler-Marinković, S., Kukić, G., & Vunjak-Novaković, G. (1993). Rhizopus arrhizus lipase-catalyzed interesterification of the midfraction of palm oil to a cocoa butter equivalent fat. Enzyme and Microbial Technology, 15, 438–443.
Harwood, J. & Gunstone, F. (2007) Occurrence and characterisation of oils and fats in The Lipid Handbook with CD-ROM, Third Edition pp. 37–141, CRC Press.
Ab Gapor Md, T. (2010). Production and utilization of palm fatty acid distillate (PFAD). Lipid Technology, 22, 11–13.
Buchgraber, M., Ulberth, F., & Anklam, E. (2004). Cluster analysis for the systematic grouping of genuine cocoa butter and cocoa butter equivalent samples based on triglyceride patterns. Journal of Agricultural and Food Chemistry, 52, 3855–3860.
Ulberth, F., & Buchgraber, M. (2003). Analytical platforms to assess the authenticity of cocoa butter. European Journal of Lipid Science and Technology, 105, 32–42.
Buchgraber, M., Androni, S., & Anklam, E. (2007). Determination of cocoa butter equivalents in milk chocolate by triacylglycerol profiling. Journal of Agricultural and Food Chemistry, 55, 3284–3291.
Hita, E., Robles, A., Camacho, B., González, P. A., Esteban, L., Jiménez, M. J., et al. (2009). Production of structured triacylglycerols by acidolysis catalyzed by lipases immobilized in a packed bed reactor. Biochemical Engineering Journal, 46, 257–264.
Jiménez, M. J., Esteban, L., Robles, A., Hita, E., González, P. A., Muñío, M. M., et al. (2010). Production of triacylglycerols rich in palmitic acid at sn-2 position by lipase-catalyzed acidolysis. Biochemical Engineering Journal, 51, 172–179.
Iwasaki, Y., & Yamane, T. (2000). Enzymatic synthesis of structured lipids. Journal of Molecular Catalysis B: Enzymatic, 10, 129–140.
Acknowledgments
The author would like to thank the Research Affairs of the United Arab Emirates University for their financial support for the research project no. (02-02-6-11/09). The author extends his thanks and appreciation to Dr. Ali Dowidar of the chemical engineering department for his great role in GC triacylglycerol analysis.
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Mohamed, I.O. Lipase-Catalyzed Acidolysis of Palm Mid Fraction Oil with Palmitic and Stearic Fatty Acid Mixture for Production of Cocoa Butter Equivalent. Appl Biochem Biotechnol 171, 655–666 (2013). https://doi.org/10.1007/s12010-013-0381-1
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DOI: https://doi.org/10.1007/s12010-013-0381-1