Oxidomics-guided development of cold pressed oils rich in antioxidants by improving manufacturing processes

Kostadinovic Velickovska, Sanja and Mitrev, Sasa and Arsov, Emilija and Arsova, Julijana and Petruseva, Dragana and Pignitter, Marc (2022) Oxidomics-guided development of cold pressed oils rich in antioxidants by improving manufacturing processes. [Project]

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Abstract

Edible oils produced by cold-pressing are good sources of tocopherols, carotenoids and chlorophylls, polyphenols, and other antioxidants with positive impact on human health. However, the main problem during production of oils with high level of polyunsaturated fatty acids (PUFA) is lipid oxidation. The main goal of this project is increasing the antioxidant level in cold pressed oils by application of oxidomics approach and modernization of the manufacturing process. The new technology involves a cost-efficient strategy which utilizes the high abundancy of antioxidants present in oilseeds, which are usually lost in the waste, the press cakes such vitamin E, phytosterols and polyphenols. Besides increasing the generation of polyphenols in the seeds and the transfer of polyphenols from the seeds to the oil to enhance the oxidative stability of cold pressed oils rich in PUFA, triggering the formation of carbonyl-amine adducts in the seeds and their transfer to the oil might lead to prolonged shelf life of edible oils. Oxidomics-guided approach in this project will enable combining the increased generation of natural antioxidants in the oil seeds and the transfer of these bioactive compounds to the oil. Modernization of traditional manufacturing processes might lead to oils with prolonged shelf life and higher levels of bioactive constituents. For this purpose, polyphenols, tocopherols / tocotrienols /plastochromanol-8, phytosterols and peptides will be analysed in the (germinated) seeds and oils at different stages and after different production conditions by LC-MS. Oxidomics will also be used to identify changes of the profile of oxidation products using SPME-GC-MS, LC-MS/MS and 1H-NMR.

Item Type:	Project
Subjects:	Agricultural Sciences > Agricultural biotechnology Natural sciences > Chemical sciences
Divisions:	Faculty of Agriculture
Depositing User:	Sanja Kostadinovik
Date Deposited:	08 Feb 2022 11:30
Last Modified:	28 Feb 2022 09:20
URI:	https://eprints.ugd.edu.mk/id/eprint/29245

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