Rheological properties, microstructure, and encapsulation efficiency of inulin-type dietary fiber-based gelled emulsions at different concentrations

Autor(es)

Gomes, Andresa ; Costa, Ana Leticia Rodrigues ; Fasolin, Luiz Henrique ; Silva, Eric Keven

• Tipo de documento: Artigo Científico
• Fonte: Carbohydrate Polymers; v. 347, p. 12-pg., 2024-09-16.

Resumo

Gelled emulsion systems offer promising matrices for encapsulating bioactive compounds, enhancing stability, bioavailability, and controlled release. Incorporating inulin-type dietary fibers into emulsion-filled gels can innovate food products. This study explored the impact of inulin concentration (0-15 % w/w) on visual aspect, microstructure, particle size distribution, creaming stability, rheological behavior, and encapsulation efficiency of emulsions and gelled emulsions with clove bud oil rich in eugenol. Regardless of inulin concentration, systems exhibited evenly distributed small oil droplets, ensuring good creaming stability. Emulsions with 10-15 % inulin formed gels upon natural cooling to approximately 30 C-degrees. Viscoelastic properties varied with inulin concentration, attributed to increased polymer chain approximation and mobility. Higher inulin content decreased the transition temperature (66( degrees)C, 56( degrees)C, and 54 C-degrees for 10 %, 12.5 %, and 15 % inulin, respectively). While inulin did not enhance creaming stability, it acted as a physical barrier, improving encapsulation efficiency of eugenol to nearly 100 %. Inulin-based emulsion-filled gels offer potential for functional food development, enriching nutritional value and health benefits. (AU)

• Processo FAPESP: 23/01876-9 - Pulsed electric field: engenharia de processos não térmicos, alimentos funcionais e biomateriais
• Beneficiário: Eric Keven Silva
• Modalidade de apoio: Bolsas no Brasil - Jovens Pesquisadores
• Processo FAPESP: 21/07639-3 - Como as micro-ondas podem ser utilizadas para obtenção e modulação de novos ingredientes?
• Beneficiário: Luiz Henrique Fasolin
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 19/26348-0 - Encapsulação de agentes bioativos apolares em emulsões convencionais, emulsões de Pickering e nanoemulsões: aplicação em filmes ativos, e estudos sobre conservação da atividade e liberação controlada
• Beneficiário: Andresa Gomes Brunassi
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado