Study of the Qualitative Characteristics of Rapeseed Oil Obtained by Cold Pressing


Oil from spring rape seeds obtained by cold pressing was selected as the object of this study. Oil samples were obtained under the following technological conditions: the annular gap was 0.7 mm in a grain chamber and the screw rotation speed was 160 rpm at a pressing temperature of 315 K. The oil composition was studied by gas-liquid chromatography on the Chromotech 5000 apparatus. Rapeseed oil characteristics were obtained with chromatograms. An increased content of linoleic acid 20% (ω6) and linolenic acid 12% (ω3) was revealed in the fatty acid composition of the sample. Fatty acids contribute to lipid metabolism regulation. They are of primary importance in the diet. The presence of 58.6% oleic acid (ω9) was identified. The resulting rapeseed oil had healing properties due to the presence of ω3, ω6 and ω9. Vitamin B, vitamin K, traces of vitamin A, and α, β + γ, δ-tocopherols were found. α, β + γ-tocopherols contribute to the oxidation process. According to these results, rapeseed oil can be confidently recommended for introduction into various food recipes.

Keywords: rapeseed oil, vitamins, fatty acid composition

[1] Fu, D., et al. (2016). Research Progress and Strategies for Multifunctional Rapeseed: A Case Study of China. Journal of Integrative Agriculture, vol. 15, issue 8, pp. 1673-1684.

[2] Khromtsev, D. F. (2013). The Possibility of Cultivating Oilseeds and Essential Oil Crops in the Ryazan Region. International Technical and Economic Journal, vol. 4, pp. 52–54.

[3] Rokosik, E., Dwiecki, K. and Siger, A. (2019). The Quality of Cold-Pressed Rapeseed Oil Obtained from Seeds of Brassica Napus L. with Increased Moisture Content. Acta Scientiarum Polonorum Technologia Alimentaria, vol.18, issue 2, pp. 205-218.

[4] Vinogradov, D. V., et al. (2012). The Possibility of Expanding the Range of Oilseeds in the Southern Non-Chernozem Region. Mezhdunarodnyy tekhniko-ekonomicheskiy zhurnal, vol. 1, pp. 118–123.

[5] Beyzi, E., et al. (2019). Changes in Fatty Acid and Mineral Composition of Rapeseed (Brassica Napus Sp. Oleifera L.) Oil with Seed Sizes. Industrial Crops and Products, vol. 129, pp. 10-14.

[6] Hu, Q., et al. (2017). Rapeseed Research and Production in China. The Crop Journal, vol. 5, issue 2, pp. 127–135.

[7] Volovik, V. T., et al. (2019). Comparison of the Fatty Acid Composition of Various Edible Oils. International Journal of Applied and Basic Research, vol. 5, pp. 147-152.

[8] Danyliv, M. M., et al. (2015). Gas Chromatographic Analysis of the Fatty Acid Composition of Vegetable Oils as Applied to the Meat Industry. Scientific Almanac, vol. 11-3, issue 13, pp. 109-112.

[9] Renzyaeva, T. V., et al. (2018). Vegetable Oils for Preventive Dietary Nutrition. Presented at Proceedings of the International Symposium: Innovations in Food Biotechnology. 14-16 May, Kemerovo, Russia: FSBEI HE Kemerovo State University.

[10] Nikitin, V. V. and Litvinova, E. V. (2018). Rapeseed Oil as a Source of PUFA for Meat Products. Meat Technology, vol. 8, pp. 16-19.

[11] Bykova, S. F., et al. (2017). Prospects for the Development of the Raw Material Base of the Oil and Fat Complex in Russia. Food Industry, vol. 5, pp. 20-24.

[12] GOST 31759-2012 (2014). “Rapeseed oil. Technical conditions”.

[13] CXS 210-1999 (2019). Standard for named vegetable oils. Adopted in 1999. Revised in 2001, 2003, 2009, 2017, 2019. Amended in 2005, 2011, 2013, 2015, 2019.

[14] GOST 30417-2018 (2018). Vegetable oils. Methods for determining the mass fractions of vitamins A and E.

[15] Lisitsyn, A. N., Bykova, S. F. and Davidenko, E. K. (2013). Prospects for the Development of the Raw Material Base for the Production of New Types of Edible Vegetable Oils. Vestnik VNIIZh, vol. 2, pp. 9-13.

[16] Chew, S. C. (2020). Cold-Pressed Rapeseed (Brassica napus) Oil. Chemistry and Functionality, vol. 131, p. 108997.

[17] Kowalski, R., et al. (2018). Effect of the Method of Rapeseed Oil Aromatisation with Rosemary Rosmarinus Officinalis L. on the Content of Volatile Fraction. LWT - Food Science and Technology, vol. 95, pp. 40-46.

[18] GOST 31759-2012 Rapeseed oil. Specifications.

[19] Mateyev, Y. Z., et al. (2019). Environmental Study of Fatty Acid Composition of Safflower Oil Received by Cold Pressing Method. EurAsian Journal of BioSciences, vol. 13, issue 1, pp. 385-391.

[20] Zhang, Y., et al. (2017). Quality of Wood-Pressed Rapeseed Oil. Journal of the American Oil Chemists’ Society, vol. 94, issue 6, pp. 767–777.