Encapsulation of pepper oleoresin by supercritical fluid extraction of emulsions

Autor(es)

de Aguiar, Ana Carolina ^{[1, 2]} ; Sales Silva, Luiz Paulo ^{[2, 3]} ; de Rezende, Camila Alves ^[1] ; Barbero, Gerardo Fernandez ^[4] ; Martinez, Julian ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Inst Chem, BR-13083862 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, UNICAMP, Coll Food Engn, DEA FEA, BR-13083862 Campinas, SP - Brazil

^[3] Univ Paris Saclay, ENSTA ParisTech, UCP, 828 Blvd Marechaux, F-91762 Paris - France

^[4] Univ Cadiz, Fac Sci, Dept Analyt Chem, Agrifood Campus Int Excellence CeiA3, POB 40, Cadiz 11510 - Spain

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF SUPERCRITICAL FLUIDS; v. 112, p. 37-43, JUN 2016.
• Citações Web of Science: 8

Resumo

Capsaicinoids, which are the responsible for the pungency of peppers, have strong pharmacological effects. The encapsulation of capsaicinoids can be an alternative for its industrial application. The aim of this work was to evaluate the effect of various ultrasound emulsification conditions, such as surfactant concentration, oil/water ratio, and ultrasound power on the emulsion droplet size. Emulsions formed by Hi-Cap 100 and oleoresin of Capsicum frutescens pepper were then applied in a SFEE process. Ultrasound emulsification resulted in high emulsification efficiency and stability. The selected time for emulsion injection into the SFEE system was 10 min after its preparation, based on the coalescence kinetics. The SFEE process resulted in a considerable loss of oleoresin by dissolution in the supercritical CO2 and promoted a droplet volume expansion, reflected by the increase in the diameter of the droplets in suspension. The formation of emulsions by ultrasound emulsification in the evaluated conditions showed promising results, but more studies are required to improve the SFEE process. (C) 2016 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 11/08656-7 - Extração, purificação e formação de micro e nanopartículas de capsaicina usando CO2 pressurizado
• Beneficiário: Julian Martínez
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/02203-6 - Construção de unidades de extração, formação de partículas e reações químicas com fluidos pressurizados
• Beneficiário: Julian Martínez
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/22119-7 - Estudo dos mecanismos de decomposição da parede celular vegetal
• Beneficiário: Camila Alves de Rezende
• Modalidade de apoio: Auxílio à Pesquisa - Regular