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metadata.artigo.dc.title: Microencapsulation of rosemary essential oil: characterization of particles
metadata.artigo.dc.creator: Fernandes, R. V. de B.
Borges, Soraia Vilela
Botrel, D. A.
Silva, E. K.
Costa, J. M. G. da
Queiroz, F.
metadata.artigo.dc.subject: Encapsulation efficiency
Gum arabic
Response surface methodology
metadata.artigo.dc.publisher: Taylor & Francis Group 25-Aug-2013
metadata.artigo.dc.identifier.citation: FERNANDES, R. V. B. et al. Microencapsulation of rosemary essential oil: characterization of particles. Drying Technology, Bangkok, v. 31, n. 11, p. 1245-1254, Aug. 2013.
metadata.artigo.dc.description.abstract: This study evaluated the influence of wall material concentration (10–30%), inlet temperature (135–195°C), and feed rate (0.5–1.0 L · h−1) on the properties of rosemary oil microencapsulated by spray-drying, with gum arabic as carrier. Powder recovery, surface oil, oil retention, and hygroscopicity varied from 17.25%–33.96%, 0.03%–0.15%, 7.15%–47.57%, and 15.87%–18.90%, respectively. The optimized conditions were determined to be a wall material concentration of 19.3%, an inlet air temperature of 171°C, and a feed flow rate of 0.92 L · h−1. At this condition, particles presented no fissures and the compositions of pure and microencapsulated oil were similar. The sorption isotherms could be described by the GAB model.
metadata.artigo.dc.language: en
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