Replication data for: Spray Drying of Double-Layer Emulsion Stabilised with an Orange Residue: Effect of Process Parameters and Collection Position
This dataset contains the tabular data and raw microscopy images generated in a study on the spray drying of a double-layer oil-in-water emulsion stabilised with orange residue flour (ORF), soy protein and maltodextrin. The objective of the study was to evaluate how spray-drying process conditions a...
| Autores: | , , , , |
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| Tipo de recurso: | conjunto de datos |
| Fecha de publicación: | 2026 |
| País: | España |
| Institución: | Consorci de Serveis Universitaris de Catalunya (CSUC) |
| Repositorio: | CORA.Repositori de Dades de Recerca |
| OAI Identifier: | oai:dnet:cora.rdr____::e0cd6c6cf4fa37288754b6884311013f |
| Acceso en línea: | https://doi.org/10.34810/DATA3346 |
| Access Level: | acceso abierto |
| Palabra clave: | Agricultural Sciences Spray drying Double-layer emulsion Orange residue Pectin Encapsulation efficiency Microencapsulation Microstructure Response surface methodology Optimisation |
| Sumario: | This dataset contains the tabular data and raw microscopy images generated in a study on the spray drying of a double-layer oil-in-water emulsion stabilised with orange residue flour (ORF), soy protein and maltodextrin. The objective of the study was to evaluate how spray-drying process conditions affect the properties of the obtained powders and the properties of the emulsions after reconstitution. The dataset allows users to interpret and reuse the data associated with Table 2, Figure 5 and Figure 10 of the article, as well as the raw optical microscopy and scanning electron microscopy images used to support microstructural observations. The study investigated the impact of spray-drying conditions, specifically inlet air temperature (Tin: 131–159 ◦C) and feed rate (FR: 4.9–8.4 g/min), on the microencapsulation of oil in a double-layer emulsion stabilised with orange residue flour (ORF) and soy protein. Powders were analysed separately from the drying chamber and the collector, focusing on yield, encapsulation efficiency, moisture, water activity (aw), oil oxidation, colour, and particle size. Chamber powders were more sensitive to Tin, where higher temperatures (155–159 ◦C) improved yield (up to 47% dry matter (dm)) but also increased oxidation (up to 134% above initial oil). Excessively high FR (8.4 g/min) reduced yield and raised aw (up to 0.39). Collector powders showed more stable yields (average 30 ± 2% dm) but lower encapsulation efficiency (80–86% for chamber vs. 70–77% for collector). Response surface methodology satisfactorily modelled key parameters (R2 up to 0.9). Optimisation showed that chamber performance was maximised at 146 ◦C and 4.9 g/min (predicted yield and aw of 41% and 0.25, respectively), while collector quality improved with slightly higher Tin (150 ◦C, predicted aw of 0.32). Separately analysing chamber and collector fractions provided novel insights into spray-drying dynamics. These findings highlight ORF as a promising wall material. |
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