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metadata.artigo.dc.title: Study of ultrasound-assisted emulsions on microencapsulation of ginger essential oil by spray drying
metadata.artigo.dc.creator: Fernandes, Regiane Victória de Barros
Borges, Soraia Vilela
Silva, Eric Keven
Silva, Yasmim Fernanda da
Souza, Hugo Junior Barboza de
Carmo, Eloá Lourenço do
Oliveira, Cassiano Rodrigues de
Yoshida, Maria Irene
Botrel, Diego Alvarenga
metadata.artigo.dc.subject: Zingiber officinale
Spray drying
Ultrasonic technology
Encapsulation efficiency
Adsorption isotherms
Secagem por pulverização
Tecnologia ultra-sônica
Eficiência de encapsulamento
metadata.artigo.dc.publisher: Elsevier 30-Dec-2016
metadata.artigo.dc.identifier.citation: FERNADES, R. V. de B. et al. Study of ultrasound-assisted emulsions on microencapsulation of ginger essential oil by spray drying. Industrial Crops and Products, [S. l.], v. 94, p. 413-423, 30 Dec. 2016.
metadata.artigo.dc.description.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 μm). 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 μm) or a mixture of GA and MD (15.83 ± 0.14 μm). The physical and chemical properties of the microparticles 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.
metadata.artigo.dc.language: en_US
Appears in Collections:DCA - Artigos publicados em periódicos

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