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Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies

The Brazilian biodiversity offers a multiplicity of raw materials with great potential in cosmetics industry applications. Some vegetable oils and fatty esters increase skin hydration by occlusivity, keeping the skin hydrated and with a shiny appearance. Sunflower (Helianthus annus L.) oil is widely...

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Autores principales: da Rocha-Filho, Pedro Alves, Maruno, Mônica, Ferrari, Márcio, Topan, José Fernando
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6272883/
https://www.ncbi.nlm.nih.gov/pubmed/27294894
http://dx.doi.org/10.3390/molecules21060680
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author da Rocha-Filho, Pedro Alves
Maruno, Mônica
Ferrari, Márcio
Topan, José Fernando
author_facet da Rocha-Filho, Pedro Alves
Maruno, Mônica
Ferrari, Márcio
Topan, José Fernando
author_sort da Rocha-Filho, Pedro Alves
collection PubMed
description The Brazilian biodiversity offers a multiplicity of raw materials with great potential in cosmetics industry applications. Some vegetable oils and fatty esters increase skin hydration by occlusivity, keeping the skin hydrated and with a shiny appearance. Sunflower (Helianthus annus L.) oil is widely employed in cosmetic emulsions in the form of soaps, creams, moisturizers and skin cleansers due to the presence of polyphenols and its high vitamin E content. Liquid crystals are systems with many applications in both pharmaceutical and cosmetic formulations and are easily detected by microscopy under polarized light due to their birefringence properties. The aim of this research was to develop emulsions from natural sunflower oil for topical uses. Sunflower oil (75.0% w/w) was combined with liquid vaseline (25.0% w/w) employing a natural self-emulsifying base (SEB) derivative. The high temperature of the emulsification process did not influence the antioxidant properties of sunflower oil. Fatty esters were added to cosmetic formulations and extended stability tests were performed to characterize the emulsions. Fatty esters like cetyl palmitate and cetyl ester increase the formation of anisotropic structures. O/W emulsions showed acidic pH values and pseudoplastic behavior. The presence of a lamellar phase was observed after a period of 90 days under different storage conditions.
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spelling pubmed-62728832018-12-28 Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies da Rocha-Filho, Pedro Alves Maruno, Mônica Ferrari, Márcio Topan, José Fernando Molecules Article The Brazilian biodiversity offers a multiplicity of raw materials with great potential in cosmetics industry applications. Some vegetable oils and fatty esters increase skin hydration by occlusivity, keeping the skin hydrated and with a shiny appearance. Sunflower (Helianthus annus L.) oil is widely employed in cosmetic emulsions in the form of soaps, creams, moisturizers and skin cleansers due to the presence of polyphenols and its high vitamin E content. Liquid crystals are systems with many applications in both pharmaceutical and cosmetic formulations and are easily detected by microscopy under polarized light due to their birefringence properties. The aim of this research was to develop emulsions from natural sunflower oil for topical uses. Sunflower oil (75.0% w/w) was combined with liquid vaseline (25.0% w/w) employing a natural self-emulsifying base (SEB) derivative. The high temperature of the emulsification process did not influence the antioxidant properties of sunflower oil. Fatty esters were added to cosmetic formulations and extended stability tests were performed to characterize the emulsions. Fatty esters like cetyl palmitate and cetyl ester increase the formation of anisotropic structures. O/W emulsions showed acidic pH values and pseudoplastic behavior. The presence of a lamellar phase was observed after a period of 90 days under different storage conditions. MDPI 2016-06-09 /pmc/articles/PMC6272883/ /pubmed/27294894 http://dx.doi.org/10.3390/molecules21060680 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
da Rocha-Filho, Pedro Alves
Maruno, Mônica
Ferrari, Márcio
Topan, José Fernando
Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies
title Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies
title_full Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies
title_fullStr Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies
title_full_unstemmed Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies
title_short Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies
title_sort liquid crystal formation from sunflower oil: long term stability studies
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6272883/
https://www.ncbi.nlm.nih.gov/pubmed/27294894
http://dx.doi.org/10.3390/molecules21060680
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