Application of a cyanobacterial extracellular polymeric substance in the microencapsulation of vitamin B12

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Berta N. Estevinho (Autor) FEUP; Rita Mota (Autor) Outra; José P. Leite (Autor) Outra; Paula Tamagnini (Autor) FCUP; Luís Gales (Autor) Outra; Fernando Rocha (Autor) FEUP

Revista

Título: Powder Technology

Vol. 343

Páginas: 644-651

ISSN: 0032-5910

Editora: Elsevier

Indexação

ISI Web of Knowledge - 29 Citações

ISI Web of Science

Scopus - 33 Citações

Projetos Associados

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

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

Outras Informações

ID Authenticus: P-00P-Y4J

DOI: 10.1016/j.powtec.2018.11.079

Abstract (EN): The cyanobacterial extracellular polymeric substances (EPS) are heteropolysaccharides that possess characteristics suitable for food and pharmaceutical applications. In this work, an extracellular carbohydrate polymer isolated from the marine cyanobacterium Cyanothece sp. CCY 0110, alone or combined with arabic gum, was tested for the microencapsulation of the vitamin B12, the most chemically complex and the largest molecule among all the vitamins. The incorporation of vitamins into food systems can provide a simple way to develop new functional foods. The microencapsulation by a spray-drying process and the controlled release of vitamin B12 were studied. Arabic gum and cyanobacterial polymer or only cyanobacterial polymer were used as encapsulating agents. The microparticles obtained were evaluated and characterized in terms of morphology, size and release profiles. Spherical microparticles with a very rough surface were obtained. The microparticles prepared only with cyanobacterial polymer presented a mean diameter of approximately 8 ¿m, while the ones prepared with cyanobacterial polymer and arabic gum presented a smaller size. The main kinetic release models (zero and first order kinetics and the Higuchi, Korsmeyer-Peppas and Weibull models) were adjusted to the experimental release profiles. The model that best describes the release profile for the microparticles prepared with cyanobacterial polymer is the kinetics of first order, while for the ones prepared with cyanobacterial polymer and arabic gum, the Weibull model presents the best fit to the experimental values. © 2018

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8