Chemical composition, antiradical and antimicrobial activity of extracts and cold-pressed edible oils from Macedonian nutty fruits

Kostadinovic Velickovska, Sanja and Dimovska, Violeta and Ilieva, Fidanka and Mihajlov, Ljupco and Kovacevik, Biljana (2019) Chemical composition, antiradical and antimicrobial activity of extracts and cold-pressed edible oils from Macedonian nutty fruits. In: 2ndInternational Meeting Agriscience & Practice, ASP 2019, 12 Apr 2019, Stip, North Macedonia.

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Abstract

The chemical composition, antiradical and antimicrobial activity of cold-pressed edible oils from nutty fruits (almond and walnut) and oils from poppy seed and wheat germ from North Macedonia were studied. Regarding the fatty acid composition, the highest level of oleic acid was determined in almond oil (67.6±0.02%) whereas poppy seed oil was the richest sources of linoleic acid with abundance of 72.3±0.06%. The highest level of α-tocopherol (23.8±0.01 mg/100 g of oil) was quantified in almond oil while γ-tocopherol was the most abundant in walnut and wheat germ oil. Wheat germ oil was the richest source of phytosterols (3894±155.0 mg/kg) with domination of β-sitosterol and campesterol. Although DPPH radical is less sensitive against phenolic compounds in comparison to ABTS radical, its relationship with tocopherols and tocotrienols was indicative. Poppy seed oil had the lowest level of tocopherols, but it indicated the highest antibacterial activity against Listeria monocytogenes and antifungal activity against Candida albicans.

Item Type: Conference or Workshop Item (Poster)
Subjects: Agricultural Sciences > Agricultural biotechnology
Divisions: Faculty of Agriculture
Depositing User: Sanja Kostadinovik
Date Deposited: 27 Nov 2019 14:22
Last Modified: 27 Nov 2019 14:22
URI: https://eprints.ugd.edu.mk/id/eprint/22974

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