ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUE

The aim of this research was to evaluate the antioxidant activity of pumpkin seed oil obtained by cold pressed after roasting under specific conditions, as well as the study of its effect on the oxidative stability of sunflower oil. The first step was obtaining the pumpkin seed oil, then determining...

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Main Author: Fatos REXHEPI
Format: Article
Language:English
Published: Politehnium Publishing House 2020-06-01
Series:European Journal of Materials Science and Engineering
Subjects:
Online Access:https://ejmse.ro/volume-5-2020/#volume5issue2
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author Fatos REXHEPI
author_facet Fatos REXHEPI
author_sort Fatos REXHEPI
collection DOAJ
description The aim of this research was to evaluate the antioxidant activity of pumpkin seed oil obtained by cold pressed after roasting under specific conditions, as well as the study of its effect on the oxidative stability of sunflower oil. The first step was obtaining the pumpkin seed oil, then determining the total polyphenols, the antioxidant activity, density and the burning point. Investigation of its effect was checked by using pure sunflower oil, mixture of sunflower oil with 1% pumpkin seed oil and pure corn oil. All three prepared samples were exposed thermally at three serial cycles at the burning point for 8 hours, followed by cooling at room temperature for 16 hours. After each cycle their density and burning point were monitored, finally followed by FTIR Spectroscopy using intensity ratio as an excellent indicator of monitoring oxidative stability for edible oils. Oxidative stability results showed that the mixture of sunflower oil and pumpkin seed oil have higher stability than the two others: pure corn and sunflower oil. Higher thermal resistance of sunflower and pumpkin seed oil mixture is a result from pumpkin seed oil which has high antioxidant activity and this could be used as a natural antioxidant by the food industry
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spelling doaj.art-0b99a1fa0daf4e578ecd1e33a874fe982022-12-22T02:22:54ZengPolitehnium Publishing HouseEuropean Journal of Materials Science and Engineering2537-43462537-43382020-06-0152515710.36868/ejmse.2020.05.02.051ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUEFatos REXHEPI0Faculty of Food Technology, University of Mitrovica “Isa Boletini”, Ukshin Kovaqica Str., 40000, Mitrovica, KosovoThe aim of this research was to evaluate the antioxidant activity of pumpkin seed oil obtained by cold pressed after roasting under specific conditions, as well as the study of its effect on the oxidative stability of sunflower oil. The first step was obtaining the pumpkin seed oil, then determining the total polyphenols, the antioxidant activity, density and the burning point. Investigation of its effect was checked by using pure sunflower oil, mixture of sunflower oil with 1% pumpkin seed oil and pure corn oil. All three prepared samples were exposed thermally at three serial cycles at the burning point for 8 hours, followed by cooling at room temperature for 16 hours. After each cycle their density and burning point were monitored, finally followed by FTIR Spectroscopy using intensity ratio as an excellent indicator of monitoring oxidative stability for edible oils. Oxidative stability results showed that the mixture of sunflower oil and pumpkin seed oil have higher stability than the two others: pure corn and sunflower oil. Higher thermal resistance of sunflower and pumpkin seed oil mixture is a result from pumpkin seed oil which has high antioxidant activity and this could be used as a natural antioxidant by the food industryhttps://ejmse.ro/volume-5-2020/#volume5issue2ftir-spectroscopypumpkin seed oilantioxidant activityoxidative stabilitysunflower oil
spellingShingle Fatos REXHEPI
ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUE
European Journal of Materials Science and Engineering
ftir-spectroscopy
pumpkin seed oil
antioxidant activity
oxidative stability
sunflower oil
title ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUE
title_full ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUE
title_fullStr ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUE
title_full_unstemmed ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUE
title_short ANTIOXIDANT ACTIVITY OF PUMPKIN SEED OIL AND ITS EFFECT ON OXIDATIVE STABILITY OF SUNFLOWER OIL MONITORED BY FTIR SPECTROSCOPY TECHNIQUE
title_sort antioxidant activity of pumpkin seed oil and its effect on oxidative stability of sunflower oil monitored by ftir spectroscopy technique
topic ftir-spectroscopy
pumpkin seed oil
antioxidant activity
oxidative stability
sunflower oil
url https://ejmse.ro/volume-5-2020/#volume5issue2
work_keys_str_mv AT fatosrexhepi antioxidantactivityofpumpkinseedoilanditseffectonoxidativestabilityofsunfloweroilmonitoredbyftirspectroscopytechnique