Characterization of rosemary essential oil for biodegradable emulsions

Rodríguez Rojo, Soraya; Varona Iglesias, Salima; Núñez, Mónica; Cocero Alonso, María José

doi:https://doi.org/10.1016/j.indcrop.2011.11.026

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Título

Characterization of rosemary essential oil for biodegradable emulsions

Autor

Rodríguez Rojo, Soraya

Varona Iglesias, Salima

Núñez, Mónica

Cocero Alonso, María José

Año del Documento

2012

Editorial

Elsevier

Documento Fuente

Industrial Crops and Products, 2012, 37, p. 137 – 140

Resumen

The characterization of rosemary essential oil (EO) for its formulation in biodegradable emulsions has been carried out. Firstly, the required HLB (hydrophile–lipophile balance) value of the oil was determined to be 15 based on droplet size analysis and the stability of emulsions with synthetic surfactants. Moreover the emulsion resulted to be stable after 50 days of storage in ambient conditions. Secondly, four biodegradable and non-toxic surfactants derived from starch were tested. The effect of these surfactants was analyzed by measuring interfacial tension between the oil and the aqueous phase.

Revisión por pares

DOI

10.1016/j.indcrop.2011.11.026

Patrocinador

The authors thank the financial support of Junta de Castilla y Leon (Spain) through the project GR11/2008. National Starch Group is acknowledged for supplying the OSAmodified starches and giving permission to publish the results obtained with them. S.Rodríguez-Rojo thanks the Spanish Ministry of Education for her postdoctoral grant. S. Varona thanks the University of Valladolid through the FPI-UVa research program.