Título Impact of Microfluidization on the Emulsifying Properties of Zein-Based Emulsions: Influence of Diutan Gum Concentration
Autores SANTOS GARCÍA, JENIFER, Trujillo-Cayado, Luis A. , del Aguila Alcaide, Maria , del Carmen Alfaro, Maria
Publicación externa Si
Medio Materials
Alcance Article
Naturaleza Científica
Cuartil JCR 1
Cuartil SJR 2
Impacto JCR 3.74800
Impacto SJR 0.60400
Fecha de publicacion 01/07/2021
ISI 671270000001
DOI 10.3390/ma14133695
Abstract Microfluidization is a preparation method that can be used to obtain emulsions with submicron droplet sizes. The first objective of this study was to evaluate the influence of homogenization pressure and cycles on droplet sizes using response surface methodology. Secondly, the influence of the diutan gum concentration incorporated in the optimized emulsion on rheological properties, microstructure, and physical stability was investigated. Taking the response surface analysis into account, the emulsion processed at 20,000 psi after four cycles seemed to show the smallest Sauter diameter values. Hence, this emulsion was the starting point to incorporate diutan gum. Interestingly, the formation of a 3D network in the emulsion, observed by FESEM, was provoked by diutan gum. The emulsion formulated with 0.4 wt.% of diutan gum presented rheological gel properties and enhanced physical stability. This work highlights the importance of selecting optimized processing variables using the microfluidization technique and extends the knowledge of using diutan gum in combination with zein.
Palabras clave microfluidization; zein; diutan gum; rheology
Miembros de la Universidad Loyola

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