Antioxidant Effect of Vitamins in Olive Oil Emulsion
In this study, water-in-extra virgin olive oil emulsions were enriched with vitamins. Water-in oil emulsions are heterogeneous systems able to solubilize both hydrophilic and hydrophobic compounds. Thus, hydrophilic vitamin C and lipophilic vitamin E were loaded separately or together in emulsion. A...
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doaj-17e9c86bc4984a58a198436ff75de9a22020-11-25T03:07:28ZengMDPI AGColloids and Interfaces2504-53772020-05-014232310.3390/colloids4020023Antioxidant Effect of Vitamins in Olive Oil EmulsionFrancesca Cuomo0Giuseppe Cinelli1Catalina Chirascu2Emanuele Marconi3Francesco Lopez4Department of Agricultural, Environmental and Food Sciences (DiAAA) and CSGI, University of Molise, Via De Sanctis, I-86100 Campobasso, ItalyDepartment of Agricultural, Environmental and Food Sciences (DiAAA) and CSGI, University of Molise, Via De Sanctis, I-86100 Campobasso, ItalyDepartment of Agricultural, Environmental and Food Sciences (DiAAA) and CSGI, University of Molise, Via De Sanctis, I-86100 Campobasso, ItalyDepartment of Agricultural, Environmental and Food Sciences (DiAAA) and CSGI, University of Molise, Via De Sanctis, I-86100 Campobasso, ItalyDepartment of Agricultural, Environmental and Food Sciences (DiAAA) and CSGI, University of Molise, Via De Sanctis, I-86100 Campobasso, ItalyIn this study, water-in-extra virgin olive oil emulsions were enriched with vitamins. Water-in oil emulsions are heterogeneous systems able to solubilize both hydrophilic and hydrophobic compounds. Thus, hydrophilic vitamin C and lipophilic vitamin E were loaded separately or together in emulsion. A suitable emulsion composition was selected after considering different surfactant (mono and diglycerides of fatty acids, E471; sorbitan monooleate, Span 80; polyoxyethylene sorbitan monooleate, Tween 80) and water concentrations. The most appropriate emulsion, for the high stability, resulted the one containing concentrations of Span 80 1% <i>w/w</i> and water 1% <i>w/w</i>. The antioxidant effect of vitamins in emulsions was studied considering the variation of the peroxide values during storage. The oxidation reaction was slowed down in emulsions containing vitamin C, but it was quickened by the loading of vitamin E for its high concentration. In emulsions containing vitamin E, indeed, the peroxide values were higher than in emulsions prepared in the absence of vitamins or in oil. The antioxidant activity generated by the co-loading of vitamin C and E was very effective to the point that in presence of high amounts of vitamins the peroxide values did not change in about 40 days of storage, due to the vitamin E regeneration by vitamin C.https://www.mdpi.com/2504-5377/4/2/23water-in-oil emulsionolive oilantioxidant activityascorbic acidtocopherol |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Francesca Cuomo Giuseppe Cinelli Catalina Chirascu Emanuele Marconi Francesco Lopez |
spellingShingle |
Francesca Cuomo Giuseppe Cinelli Catalina Chirascu Emanuele Marconi Francesco Lopez Antioxidant Effect of Vitamins in Olive Oil Emulsion Colloids and Interfaces water-in-oil emulsion olive oil antioxidant activity ascorbic acid tocopherol |
author_facet |
Francesca Cuomo Giuseppe Cinelli Catalina Chirascu Emanuele Marconi Francesco Lopez |
author_sort |
Francesca Cuomo |
title |
Antioxidant Effect of Vitamins in Olive Oil Emulsion |
title_short |
Antioxidant Effect of Vitamins in Olive Oil Emulsion |
title_full |
Antioxidant Effect of Vitamins in Olive Oil Emulsion |
title_fullStr |
Antioxidant Effect of Vitamins in Olive Oil Emulsion |
title_full_unstemmed |
Antioxidant Effect of Vitamins in Olive Oil Emulsion |
title_sort |
antioxidant effect of vitamins in olive oil emulsion |
publisher |
MDPI AG |
series |
Colloids and Interfaces |
issn |
2504-5377 |
publishDate |
2020-05-01 |
description |
In this study, water-in-extra virgin olive oil emulsions were enriched with vitamins. Water-in oil emulsions are heterogeneous systems able to solubilize both hydrophilic and hydrophobic compounds. Thus, hydrophilic vitamin C and lipophilic vitamin E were loaded separately or together in emulsion. A suitable emulsion composition was selected after considering different surfactant (mono and diglycerides of fatty acids, E471; sorbitan monooleate, Span 80; polyoxyethylene sorbitan monooleate, Tween 80) and water concentrations. The most appropriate emulsion, for the high stability, resulted the one containing concentrations of Span 80 1% <i>w/w</i> and water 1% <i>w/w</i>. The antioxidant effect of vitamins in emulsions was studied considering the variation of the peroxide values during storage. The oxidation reaction was slowed down in emulsions containing vitamin C, but it was quickened by the loading of vitamin E for its high concentration. In emulsions containing vitamin E, indeed, the peroxide values were higher than in emulsions prepared in the absence of vitamins or in oil. The antioxidant activity generated by the co-loading of vitamin C and E was very effective to the point that in presence of high amounts of vitamins the peroxide values did not change in about 40 days of storage, due to the vitamin E regeneration by vitamin C. |
topic |
water-in-oil emulsion olive oil antioxidant activity ascorbic acid tocopherol |
url |
https://www.mdpi.com/2504-5377/4/2/23 |
work_keys_str_mv |
AT francescacuomo antioxidanteffectofvitaminsinoliveoilemulsion AT giuseppecinelli antioxidanteffectofvitaminsinoliveoilemulsion AT catalinachirascu antioxidanteffectofvitaminsinoliveoilemulsion AT emanuelemarconi antioxidanteffectofvitaminsinoliveoilemulsion AT francescolopez antioxidanteffectofvitaminsinoliveoilemulsion |
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