Please use this identifier to cite or link to this item:
Type: Artigo
Title: Study Of Ultrasound-assisted Emulsions On Microencapsulation Of Ginger Essential Oil By Spray Drying
Author: de Barros Fernandes
Regiane Victoria; Borges
Soraia Vilela; Silva
Eric Keven; da Silva
Yasmim Fernanda; Barboza de Souza
Hugo Junior; do Carmo
Eloa Lourenco; de Oliveira
Cassiano Rodrigues; Yoshida
Maria Irene; Botrel
Diego Alvarenga
Abstract: This study aimed to evaluate the influence of the encapsulating matrix on producing spray-dried ginger essential oil powders using blends of gum Arabic (GA), maltodextrin (MD) and inulin (IN) as wall materials. The effects of emulsification process assisted by ultrasonication on kinetic stabilization of emulsions used as the feeding liquid in the spray drying were evaluated. The emulsions obtained by using ultrasound were more stable and presented smaller droplets (<= 2.03 +/- 0.01 mu m). The use of MD and IN together with GA improved the wettability of the powders (245 +/- 21 s). GA:MD powders adsorbed less water vapour than other treatments under the same storage conditions. The partial replacement of GA by MD affected considerably the encapsulation efficiency showing the higher value for this parameter (93.0 +/- 0.8%). Larger microparticles were observed in the powders prepared with GA (15.44 +/- 0.13 mu m) or a mixture of GA and MD (15.83 +/- 0.14 mu m). The physical and chemical properties of the micropartides were substantially modified by using IN or MD together with GA. Based on the studied properties, the microparticles produced with GA and MD were considered to present the better characteristics for wettability, encapsulation efficiency and higroscopicity. (C) 2016 Elsevier B.V. All rights reserved.
Subject: Zingiber Officinale
Spray Drying
Ultrasonic Technology
Encapsulation Efficiency
Adsorption Isotherms
Editor: Elsevier Science BV
Rights: fechado
Identifier DOI: 10.1016/j.indcrop.2016.09.010
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000387298100045.pdf2.29 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.