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Article
Impact of microfluidization on the emulsifying properties of zein-based emulsions: Influence of diutan gum concentration
Author/s | Santos García, Jenifer
Trujillo-Cayado, Luis Alfonso Alcaide González, María del Águila Alfaro Rodríguez, María del Carmen |
Department | Universidad de Sevilla. Departamento de Ingeniería Química |
Publication Date | 2021 |
Deposit Date | 2022-01-18 |
Published in |
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Abstract | Microfluidization is a preparation method that can be used to obtain emulsions with sub-micron droplet sizes. The first objective of this study was to evaluate the influence of homogenization pressure and cycles on droplet ... Microfluidization is a preparation method that can be used to obtain emulsions with sub-micron 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 prop-erties, 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. In-terestingly, 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. |
Citation | Santos García, J., Trujillo-Cayado, L.A., Alcaide González, M.d.Á. y Alfaro Rodríguez, M.d.C. (2021). Impact of microfluidization on the emulsifying properties of zein-based emulsions: Influence of diutan gum concentration. Materials, 14 (13), 3695. |
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Impact of Microfluidization.pdf | 3.541Mb | [PDF] | View/ | |