Abstract
Fat fractions composed by different proportions of low (LMT) or high (HMT) melting temperature triacylglycerols were used, alone or in mixture with α-tocopherol for the preparation of oil-in-water protein stabilised nano-emulsions. Addition of α-tocopherol to the LMT or HMT fat fractions was accompanied by different changes in the emulsion characteristics such as fat droplet size distributions, under-cooling and polymorphic transitions, in parallel with different extent of α-tocopherol degradation reactions. Our results showed higher immobilisation pattern of α-tocopherol molecules and higher protection against degradation when incorporated in higher size fat droplets, which presented 2Lα → 2Lβ′ polymorphic transitions under cooling and re-heating cycles.
Similar content being viewed by others
References
Pokorny J, Yanishlieva N, Gordon M. Antioxidants in foods, practical applications. Cambridge: Woodhead; 2001.
Willcox JK, Ash SL, Catignani GL. Antioxidants and prevention of chronic disease. Crit Rev Food Sci Nutr. 2004;44:275–95.
Wang X, Quinn PJ. The structure and phase behaviour of α-tocopherol-rich domains in 1-palmitoyl-2-oleoyl-phosphatidylethanolamine. Biochimie. 2006;88:1883–8.
Yokogawa K, Shima Y, Hashimoto T, Hiyajyo M, et al. High-bioavailability of α-tocopherol loaded into poly (DL-lactic-co-glycolic acid) microspheres in apolipoprotein B knockout mice. Pharm Res. 2003;20:1846–50.
Hugues GA. Nanostructure-mediated drug delivery. Nanomedicine. 2005;1:22–30.
Gursoy RN, Benita S. Self-emulsifying drug delivery systems (SEDDS) for improved oral delivery of lipophilic drugs. Biomed Pharmacother. 2004;58:173–82.
Park GY, Mun S, Park Y, et al. Influence of encapsulation of emulsified lipids with chitosan on their in vivo digestibility. Food Chem. 2007;104:761–7.
Hu M, McClements J, Decker EA. Lipid oxidation in corn oil-in-water emulsions stabilized by casein, whey protein isolate, and soy protein isolate. J Agric Food Chem. 2003;51:1696–700.
Chau CF, Wu SH, Yen GC. The development of regulations for food nanotechnology. Trends Food Sci Technol. 2007;18:269–80.
Sanguansri P, Augustin MA. Nanoscale materials development—a food industry perspective. Trends Food Sci Technol. 2006;17:547–56.
Coupland J. Crystallization in emulsions. J Curr Opin Colloid Interface Sci. 2002;7:445–50.
McClements DJ, Dungan SR, German JB, Simoneau C, Kinsella JE. Droplet size and emulsifier type affect crystallization and melting of hydrocarbon-in-water emulsion. J Food Sci. 1993;58:1148–51.
Kaneko N, Horie T, Ueno S, Yano J, Katsuragi T, Sato K. Impurity effects on crystallization rates of n-hexane in oil-in-water emulsions. J Cryst Growth. 1999;197:263–70.
Relkin P, Sourdet S, Fosseux P-Y. Fat crystallization in complex food emulsions: effects of adsorbed milk proteins and of a whipping process. J Therm Anal Calorim. 2003;71:187–95.
Relkin P, Ait-Talleb, Sourdet S. Thermal behavior of fat droplets as related to adsorbed milk proteins in complex food emulsions. A DSC study. J Am Oil Chem Soc. 2003;80:741–6.
Tangsuphoom N, Coupland JN. Effect of heating and homogenization on the stability of coconut milk emulsions. J Food Sci. 2005;70:E466–70.
Relkin P, Sourdet S. Factors affecting fat droplet aggregation in whipped frozen protein-stabilized emulsions. Food Hydrocolloids. 2005;19:503–11.
Arima S, Ueji T, Ueno S, Ogawa A, Sato K. Retardation of crystallization-induced destabilization of PMF-in-water emulsion with emulsifier additives. Colloid Surf B. 2007;55:98–106.
Hartel RW, Kaylegian KE. Advances in milk fat fractionation. Technology and Applications. In: Garti N, Sato K, editors. Crystallization process in fats and lipid systems. NY: Marcel Dekker; 2001. p. 381–427.
Relkin P, Jung JM, Kalnin D, Ollivon M. Structural behaviour of lipid droplets in protein-stabilized nano-emulsions and stability of alpha-tocopherol. Food Biophys. 2008;3:163–8.
http://www.umr-cnrs8612.u-psud.fr/umr-cnrs8612/Francais/pdf/MICROCALIX.pdf.
Ollivon M, Keller G, Bourgaux C, Kalnin D, Villeneuve P, Lesieur P. DSC and high resolution X-ray diffraction coupling. J Therm Anal Calorim. 2006;83:219–24.
Hindle S, Povey MJW, Smith K. Kinetics of crystallization in n-hexadecane and cocoa butter oil-in-water emulsions accounting for droplet collision-mediated nucleation. J Colloid Interface Sci. 2000;232:370–80.
Acknowledgements
Dr Claudie Bourgaux (UMR CNRS 8612) is acknowledged for fruitful discussion.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Relkin, P., Jung, JM. & Ollivon, M. Factors affecting vitamin degradation in oil-in-water nano-emulsions. J Therm Anal Calorim 98, 13–18 (2009). https://doi.org/10.1007/s10973-009-0340-9
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10973-009-0340-9