Quality Changes of Cold-Pressed Black Cumin (Nigella sativa L.), Safflower (Carthamus tinctorius L.), and Milk Thistle (Silybum marianum L.) Seed Oils during Storage
Author:
Tarasevičienė Živilė1, Laukagalis Valdas1, Paulauskienė Aurelija1ORCID, Baltušnikienė Aldona23, Meškinytė Edita2
Affiliation:
1. Institute of Plant Biology and Food Sciences, Agriculture Academy Vytautas Magnus University, Donelaičio Str. 58, 44248 Kaunas, Lithuania 2. Animal Production Research and Innovation Center, Bioeconomy Research Institute, Agriculture Academy Vytautas Magnus University, Donelaičio Str. 58, 44248 Kaunas, Lithuania 3. Department of Biochemistry, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 9, 44307 Kaunas, Lithuania
Abstract
Oils derived from non-traditional seeds, such as safflower, milk thistle, and black cumin seeds, have recently grown in popularity. Seed oil is in high demand due to consumer interest in illness prevention and health promotion through healthier diets that include a high concentration of monounsaturated and polyunsaturated fatty acids and antioxidant phenolic components. This study assessed the quality characteristics of cold-pressed seed oil at three unique storage times: at the beginning of the trial (i.e., before storage), after 2 months, and after 4 months. The results of the performed analyses indicate that the acidity of extracted black cumin, safflower, and milk thistle seed oil fluctuates considerably over time. The highest acidity level change was detected for black cumin seed oil, from 10.26% after the extraction to 16.96% after 4 months of storage at 4 °C. Consequently, changes between pre- and post-storage peroxide concentrations were discernible after four months. Peroxide value in milk thistle and safflower seed oils increased by 0.92 meq/kg and 2.00 meq/kg, respectively, during the assessed storage time, while that of black cumin was very high and fluctuated. The storage period substantially affects oxidative changes and the oxidation stability of the oil. Major changes were observed in the polyunsaturated fatty acids in seed oil during storage. The essential changes were detected in the black cumin seed oil odor profile after 4 storage months. Their quality and stability, as well as the nature of the changes that occur during the storage of oil, require extensive investigation.
Subject
Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics
Reference45 articles.
1. Chemical characteristics and antioxidant content properties of cold pressed seed oil of wild milk thistle plant grown in Jordan;Dabbour;Pak. J. Nutirion,2014 2. Zhang, Z.S., Wang, S., Liu, H., Li, B.Z., and Che, L. (2020). Constituents and thermal properties of milk thistle seed oils extracted with three methods. LWT Food Sci. Technol., 126. 3. Meddeb, W., Rezig, L., Abderrabba, M., Lizard, G., and Mejri, M. (2017). Tunisian milk thistle: An investigation of the chemical composition and the characterization of its cold-pressed seed oils. Int. J. Mol. Sci., 18. 4. Ergonul, P.G., and Ozbek, Z.A. (2020). Cold Pressed Safflower (Carthamus tinctorius L.) Seed Oil, Academic Press. 5. Ketenoglu, O., Kiralan, S.S., Kiralan, M., Ozkan, G., and Ramadan, M.F. (2020). Cold Pressed Black Cumin (Nigella sativa L.) Seed Oil, Academic Press.
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