Abstract

The resources of natural solid fats that used in various branches of the food industry are limited. As a result, they are often substituted by chemically and physically modified fats. Until recently, hydrogenation was the main method of modification of fats. Modification allows for products with a high hardness and sufficient resilience to oxidation due to a large amount of trans-isomers. Since the legislation in the sphere of food industry is changing, producers have to look for new solutions for fat-containing products that would correspond with the new restrictions for trans-isomers of fatty acids. The present paper contains a review of modern methods of modified fats production with a reduced content of trans-isomers of fatty acids. It also features some theoretical and practical aspects of multistage fractionation of tropical oils. The authors describe the characteristic of the products of palm oil fractionation and give some recommendations on how various fractions can be applied in milk-containing products. The research included a comparative analysis of various ways of interesterification applied in world practice of jellied fats production. The experiment included interesterification of mixes of the fractioned solid and liquid vegetable oils that can be used in milk-containing products. A specific ratio of raw ingredients in the initial makes it possible to achieve the required technological properties of the final product, as well as to increase its biological efficiency due to linoleic acid. Plastic fats reduce or completely cut the consumption of hydrogenated fats in milk-containing products while increasing their nutrition value, shelf life, and trans-isomeric indicators.

Keywords

Trans-isomers of fatty acids, solid triglycerides, melting, interesterification, fractionation

REFERENCES

1. Alberdi-Cedeño J., Ibargoitia M.L., Cristillo G., Sopelana P., and Guillén M.D. A new methodology capable of characterizing most volatile and less volatile minor edible oils components in a single chromatographic run without solvents or reagents. Detection of new components. Food Chemistry, 2017, vol. 221, pp. 1135–1144. DOI: https://doi.org/10.1016/j.foodchem.2016.11.046.
2. Azizkhani M., Kamkar A., and Nejad A.S.M. Effects of tocopherols on oxidative stability of margarine. Journal of theChemical Society of Pakistan, 2011, vol. 33, no. 1, pp. 134–137.
3. Adhikari P. and Hu P. Enzymatic and Chemical Interesterification of Rice Bran Oil, Sheaolein, and Palm Stearin and Comparative Study of Their Physicochemical Properties. Journal of Food Science, 2012, vol. 77, no. 12, pp. 1285–1292. DOI: https:// doi.org/10.1111/j.1750-3841.2012.02977.x.
4. Calliauw G., Fredrick F., Gibon V., et al. On the fractional crystallization of palm olein: Solid solutions and eutectic solidification. Food Research International, 2010, vol. 43, no. 4, pp. 927–981. DOI: https://doi.org/10.1016/j.foodres.2010.01.002.
5. Da Costa Filho P.A. Developing a rapid and sensitive method for determination of trans-fatty acids in edible oils using middle-infrared spectroscopy. Food Chemistry, 2014, vol. 158, pp. 1–7. DOI: https://doi.org/10.1016/j.foodchem.2014.02.084.
6. European food and nutrition action plan 2015–2020. Copenhagen: WHO Regional Office for Europe Publ., 2014. Available at: http://www.euro.who.int/en/publications/abstracts/european-food-and-nutrition-action-plan-20152020-2014. (accessed 01 April 2018).
7. Ganguly R. and Pierce G.N. The toxicity of dietary trans fat. Food and Chemical Toxicology, 2015, vol. 78, pp. 170–176. DOI: https://doi.org/10.1016/j.fct.2015.02.004.
8. Ilyasoglu H. Production of human fat milk analogue containing α-linolenic acid by solvent-free enzymatic interesterification.LWT – Food Science and Technology, 2013, vol. 54, no. 1, pp. 179–185. DOI: https://doi.org/10.1016/j.lwt.2013.05.036.
9. Jala R.C.R., Hu P., Yang T., et al. Lipases as Biocatalysts for the Synthesis of Structured Lipids. Methods in Molecular Biology, 2015, vol. 861, pp. 403–433. DOI: https://doi.org/10.1007/978-1-61779-600-5_23.
10. Salas J.J., Bootello M.A., Martínez-Force E., and Garcés R. Tropical vegetable fats and butters: properties and new alternatives: Oilseeds and fats. OCL – Oleagineux Corps Gras Lipides, 2009, vol. 16, no. 4, pp. 254–258. DOI: https://doi.org/10.1051/ ocl.2009.0278.
11. Song J., Park J., Jung J., et al. Analysis of Trans Fat in Edible Oils with Cooking Process. Toxicological Research, 2015, vol. 31, no. 3, pp. 307–312. DOI: https://doi.org/10.5487/TR.2015.31.3.307.
12. Kovalenko G.A., Beklemishev A.B., Perminova L.V., and Mamaev A.L. Rekombinantnye shtammy-produtsenty termostabilʹnoy lipazy iz Thermomyces Lanuginosus. Biokataliticheskie protsessy pereehterifikatsii i ehterifikatsii komponentov rastitelʹnykh masel [Recombinant strains-producers of thermostable lipase from Thermomyces Lanuginosus. Biocatalytic processes of transesterification and esterification of components of vegetable oils]. Aktualʹnaya biotekhnologiya [Current biotechnology], 2017, vol. 21, no. 2, pp. 27. (In Russ.).
13. Martin-Rubio A.S., Sopelana P., and Guillén M.D. A thorough insight into the complex effect of gamma-tocopherol on the oxidation process of soybean oil by means of 1H Nuclear Magnetic Resonance. Comparison with alpha-tocopherol. Food Research International, 2018, vol. 114, pp. 230–239. DOI: https://doi.org/10.1016/j.foodres.2018.07.064.
14. Mossoba M.M., Azizian H., Tyburczy C., et al. Rapid FT-NIR analysis of edible oils for total SFA, MUFA, PUFA, and Trans FA with comparison to GC. JAOCS, Journal of the American Oil Chemists’ Society, 2013, vol. 90, no. 6, pp. 757–770. DOI: https://doi.org/10.1007/s11746-013-2234-z.
15. Bazan N.G. Docosanoids and elovanoids from omega-3 fatty acids are pro-homeostatic modulators of inflammatory responses, cell damage and neuroprotection. Molecular Aspects of Medicine, 2018, vol. 64, pp. 18–33. DOI: https://doi.org/10.1016/j. mam.2018.09.003.
16. Żyżelewicz D., Budryn G., Krysiak W., et al. Influence of roasting conditions on fatty acid composition and oxidative changes of cocoa butter extracted from cocoa bean of Forastero variety cultivated in Togo. Food Research International, 2014, vol. 63, pp. 328–343. DOI: https://doi.org/10.1016/j.foodres.2014.04.053.
17. Zhang M., Yang X., Zhao H.T., et al. A quick method for routine analysis of C18 trans fatty acids in nonhydrogenated edible vegetable oils by gas chromatographymass spectrometry. Food Control, 2015, vol. 57, pp. 293–301. DOI: https://doi.org/10.1016/j. foodcont.2015.04.027.
18. Starovoytova K.V., Tarlyun M.A., Tereshchuk L.V., and Mamontov A.S. Features of using of solid natural oils in production of spreads. Food Processing: Techniques and Technology, 2017, vol. 44, no. 1, pp. 44–51. (In Russ.). DOI: https://doi. org/10.21179/2074-9414-2017-1-44-51.
19. Shelamova S.A., Derkanosova N.M., Vasilenko O.A., and Kashirina N.A. Enzymatic interesterification of vegetable oils in the production of dietetic fat products. Vestnik of Voronezh State Agrarian University, 2018, vol. 57, no. 2, pp. 131–139. (In Russ.). DOI: https://doi.org/10.17238/issn2071-2243.2018.2.131.
20. Stender S., Astrup A., and Dyerberg J. Tracing artificial trans fat in popular foods in Europe: a market basket investigation.BMJ Open, 2014, vol. 4, no. 5. DOI: https://doi.org/10.1136/bmjopen-2014-005218.
21. Tereshchuk L.V., Mamontov A.S., Kraeva K.V., and Subbotina M.A. Food Processing: Techniques and Technology, 2014, vol. 35, no. 4, pp. 63–71. (In Russ.).
22. Workshop. Trans Fats. Brussels: European Union Publ., 2014. Available at: http://www.europarl.europa.eu/RegData/ etudes/workshop/join/2014/518744/IPOL-ENVI_AT%282014%29518744_EN.pdf. (accessed 01 April 2018).