Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and Stability
Carboxymethyl cellulose (CMC) is a hydrocolloid with surface activity that could act as emulsifiers in oil-in-water emulsions; however the principal role is that it acts as structuring, thickening, or gelling agent in the aqueous phase. This study aims to evaluate the application of CMC as thickener...
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Series: | International Journal of Polymer Science |
Online Access: | http://dx.doi.org/10.1155/2016/6280581 |
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doaj-d1f0632721cf4678bd69966be4e09e112020-11-24T22:34:41ZengHindawi LimitedInternational Journal of Polymer Science1687-94221687-94302016-01-01201610.1155/2016/62805816280581Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and StabilityC. Arancibia0R. Navarro-Lisboa1R. N. Zúñiga2S. Matiacevich3Food Properties Research Group, Food Science and Technology Department, Facultad Tecnológica, Universidad de Santiago de Chile, Obispo Umaña 050, Estación Central, Santiago, ChileFood Properties Research Group, Food Science and Technology Department, Facultad Tecnológica, Universidad de Santiago de Chile, Obispo Umaña 050, Estación Central, Santiago, ChileBioprocess Engineering Laboratory, Department of Biotechnology, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Ñuñoa, Santiago, ChileFood Properties Research Group, Food Science and Technology Department, Facultad Tecnológica, Universidad de Santiago de Chile, Obispo Umaña 050, Estación Central, Santiago, ChileCarboxymethyl cellulose (CMC) is a hydrocolloid with surface activity that could act as emulsifiers in oil-in-water emulsions; however the principal role is that it acts as structuring, thickening, or gelling agent in the aqueous phase. This study aims to evaluate the application of CMC as thickener into nanoemulsions based on olive oil and their influence on particle characteristics, flow behavior, and color. Four nanoemulsions with different oil (5% and 15% w/w olive oil) and CMC (0.5% and 0.75% w/w) concentration and two control samples without CMC added were prepared using Tween 80 as emulsifier. All physical properties studied on nanoemulsions were depending on both oil and CMC concentration. In general, z-average particle size varied among 107–121 nm and those samples with 5% oil and CMC were the most polydisperse. The addition of CMC increased anionic charge of nanoemulsions obtaining zeta potential values among −41 and −55 mV. The oil concentration increased both consistency and pseudoplasticity of samples, although samples were more stable to gravitational separation at the highest CMC concentration. Color of nanoemulsions was affected principally by the oil concentration. Finally, the results showed that CMC could be applied in nanoemulsions as thickener increasing their physical stability although modifying their physical properties.http://dx.doi.org/10.1155/2016/6280581 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
C. Arancibia R. Navarro-Lisboa R. N. Zúñiga S. Matiacevich |
spellingShingle |
C. Arancibia R. Navarro-Lisboa R. N. Zúñiga S. Matiacevich Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and Stability International Journal of Polymer Science |
author_facet |
C. Arancibia R. Navarro-Lisboa R. N. Zúñiga S. Matiacevich |
author_sort |
C. Arancibia |
title |
Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and Stability |
title_short |
Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and Stability |
title_full |
Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and Stability |
title_fullStr |
Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and Stability |
title_full_unstemmed |
Application of CMC as Thickener on Nanoemulsions Based on Olive Oil: Physical Properties and Stability |
title_sort |
application of cmc as thickener on nanoemulsions based on olive oil: physical properties and stability |
publisher |
Hindawi Limited |
series |
International Journal of Polymer Science |
issn |
1687-9422 1687-9430 |
publishDate |
2016-01-01 |
description |
Carboxymethyl cellulose (CMC) is a hydrocolloid with surface activity that could act as emulsifiers in oil-in-water emulsions; however the principal role is that it acts as structuring, thickening, or gelling agent in the aqueous phase. This study aims to evaluate the application of CMC as thickener into nanoemulsions based on olive oil and their influence on particle characteristics, flow behavior, and color. Four nanoemulsions with different oil (5% and 15% w/w olive oil) and CMC (0.5% and 0.75% w/w) concentration and two control samples without CMC added were prepared using Tween 80 as emulsifier. All physical properties studied on nanoemulsions were depending on both oil and CMC concentration. In general, z-average particle size varied among 107–121 nm and those samples with 5% oil and CMC were the most polydisperse. The addition of CMC increased anionic charge of nanoemulsions obtaining zeta potential values among −41 and −55 mV. The oil concentration increased both consistency and pseudoplasticity of samples, although samples were more stable to gravitational separation at the highest CMC concentration. Color of nanoemulsions was affected principally by the oil concentration. Finally, the results showed that CMC could be applied in nanoemulsions as thickener increasing their physical stability although modifying their physical properties. |
url |
http://dx.doi.org/10.1155/2016/6280581 |
work_keys_str_mv |
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