Development of O/W Emulsions with Annato Oil (Bixa orellana) Containing Liquid Crystal
| Autor: | Daniela dos Santos Masson, Pedro Alves da Rocha Filho, Wanderley Pereira de Oliveira, Orlando David Henrique dos Santos, Gilsane G. Morais |
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| Rok vydání: | 2005 |
| Předmět: |
Chromatography
Polymers and Plastics biology Aqueous two-phase system Fatty alcohol Raw material biology.organism_classification Surfaces Coatings and Films chemistry.chemical_compound Pulmonary surfactant chemistry Rheology Chemical engineering Phase (matter) Bixaceae Physical and Theoretical Chemistry Solubility |
| Zdroj: | Journal of Dispersion Science and Technology. 26:591-596 |
| ISSN: | 1532-2351 0193-2691 |
| DOI: | 10.1081/dis-200057647 |
| Popis: | O/W emulsions with liquid crystals are complex systems for the delivery of actives into the skin surface since they modulate the release rate in the structure, and they increase the stability and solubility of slightly soluble substances in oil or aqueous phase and support moisturing by decreasing the transepidermal water loss (TEWL). The development of emulsions with vegetable oils is interesting due to their properties; in addition it allows the use of natural raw materials of Brazil's biodiversity, and it has attracted growing attention in the market because of the marketing value of natural products. Following this trend, emulsions were developed containing annatto oil as oily phase. HLB system was used for selection of emulsifying agents because it aids in the correct determination of the ratio of surfactant in a mixture for a better emulsification. In this study, the HLB value of annatto oil was established using nonionic surfactants, such as oleth‐3 and oleth‐20. With the replacement of these by ce... |
| Databáze: | OpenAIRE |
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