EFFECT OF ROSEMARY EXTRACT ON THERMAL STABILITY OF SUNFLOWER OIL

Gashi, Artan and Arapcheska, Mila and Rexhepi, Fatos (2020) EFFECT OF ROSEMARY EXTRACT ON THERMAL STABILITY OF SUNFLOWER OIL. Journal Food and Environment Safety, XIX (4). pp. 267-274. ISSN 2068 - 6609

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Abstract

The purpose of this study was to evaluate the effect of rosemary extract (Rosemarinus officinalis L.) on thermal stability of sunflower oil. Samples of sunflower oil and sunflower oil containing 0.1% rosemary extract were subjected to three successive cycles of thermal heating at burning point for 8 hours, followed by cooling at room temperaturefor16 hours. After each cycle, samples of oils were taken for analysis ofdensity, viscosity and FTIR spectroscopy measurements. Analyzed parameters were used as indicators of structural changes in analyzed samples of oils. According obtained results the addition of rosemary extract in sunflower oil effectively protect its triglyceride structure and level of unsaturation during thermal heating and increase its thermal stability. Performed FTIR spectroscopy has indicated the role of rosemary extract as a natural protective agent. Samples of sunflower oil with rosemary extract have shown improved thermal stability compared with pure sunflower oil.

Item Type: Article
Subjects: Scientific Fields (Frascati) > Natural sciences > Biological sciences
Scientific Fields (Frascati) > Natural sciences > Chemical sciences
Scientific Fields (Frascati) > Natural sciences > Other natural sciences
Divisions: Faculty of Biotechnical Sciences
Depositing User: Prof. d-r Mila Arapceska
Date Deposited: 08 Mar 2021 21:11
Last Modified: 08 Mar 2021 21:11
URI: http://eprints.uklo.edu.mk/id/eprint/6306

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