Evaluation of nano spray drying at high feed concentration
Spray drying is a technique used in the chemical-biological area to encapsulate dissolved substances with a protective material, by spraying with hot air to reduce moisture content (%H) and water activity (Aw). Nano spray drying (NSA) employs a low productivity condition with feeds ≤1% solids conten...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | México |
| Institución: | UNIVERSIDAD AUTÓNOMA DEL ESTADO DE HIDALGO |
| Repositorio: | PÄDI Boletín Científico de Ciencias Básicas e Ingeniería del ICBI |
| Idioma: | español |
| OAI Identifier: | oai:repository.uaeh.edu.mx:article/9836 |
| Acceso en línea: | https://repository.uaeh.edu.mx/revistas/index.php/icbi/article/view/9836 |
| Access Level: | acceso abierto |
| Palabra clave: | Nano Spray Drying spray drying maltodextrin Nano secado por aspersión secado por pulverización maltodextrina |
| Sumario: | Spray drying is a technique used in the chemical-biological area to encapsulate dissolved substances with a protective material, by spraying with hot air to reduce moisture content (%H) and water activity (Aw). Nano spray drying (NSA) employs a low productivity condition with feeds ≤1% solids content to obtain submicron powder sizes. In the present work, a feed at 25% w/v of maltodextrin solids w/v of ten equivalents of dextrose (DE10) and 120 °C of process temperature () was evaluated. The Buchi-B90 equipment presented the ability to process the sample, where the powder analysis showed a particle size of 10-12 μm with wrinkled morphology without significant agglomeration, %H of 5.49%, A w of 0.212 and yield of 88.13%. The recording of the operating conditions reveals that the spray speed (TE) is not affected by the head temperature (Tc). |
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