A new approach to the production of zein microstructures with vitamin B12, by electrospinning and spray drying techniques

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

Sílvia Castro Coelho (Autor) FEUP; Sebastien Laget (Autor) Outra; Philomène Benaut (Autor) Outra; Fernando Rocha (Autor) FEUP; Berta Nogueiro Estevinho (Autor) FEUP

Revista

Título: Powder Technology

Vol. 392

Páginas: 47-57

ISSN: 0032-5910

Editora: Elsevier

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

Projetos Associados

MicroDelivery - Desenvolvimento de sistemas funcionais de libertação controlada por microencapsulação de compostos ativos e naturais, com interesse terapêutico, nutricional e tecnológico

Outras Informações

ID Authenticus: P-00V-5KK

DOI: 10.1016/j.powtec.2021.06.056

Abstract (EN): In this study, vitamin B12, the most chemically complex and the largest molecule among all the vitamins, was successfully incorporated into zein microstructures via electrospinning and spray drying techniques. Scanning electron microscopy analysis revealed that different microstructures were obtained by electrospinning tech-nique: films, microparticles and electrospun fibres. The vitamin B12 films presented a smooth surface and had around 90% of encapsulation efficiency. Vitamin B12-encapsulated zein microbeads, with a size of around 3 mu m, were formed showing an efficiency of encapsulation of 91%. Electrospun fibres exhibited ribbon-shaped morphologies and had an encapsulation efficiency of 100%. By spray drying technique, wrinkled zein micropar-ticles with vitamin B12 were produced with an encapsulation efficiency and product yield ranging between 71 and 95% and 67-83%, respectively. Kinetic models were applied to the experimental release profiles. The Weibull kinetic model showed the best fitting with the experimental data. The main drug transport mechanism associated to the experimental data is the Fickian diffusion (case I transport). The results suggest that the produced zein microstructures via spray drying and electrospinning techniques can be used as promising and effective alternative food and nutraceutical delivery systems.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11