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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Encapsulation of pepper oleoresin by supercritical fluid extraction of emulsions

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Author(s):
de Aguiar, Ana Carolina [1, 2] ; Sales Silva, Luiz Paulo [2, 3] ; de Rezende, Camila Alves [1] ; Barbero, Gerardo Fernandez [4] ; Martinez, Julian [2]
Total Authors: 5
Affiliation:
[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
Total Affiliations: 4
Document type: Journal article
Source: JOURNAL OF SUPERCRITICAL FLUIDS; v. 112, p. 37-43, JUN 2016.
Web of Science Citations: 8
Abstract

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)

FAPESP's process: 11/08656-7 - Extraction, purification and formation of micro- and nanoparticles of capsaicin using pressurized CO2
Grantee:Julian Martínez
Support Opportunities: Regular Research Grants
FAPESP's process: 13/02203-6 - Development of equipments for extraction, particle formation and chemical reactions using pressurized fluids
Grantee:Julian Martínez
Support Opportunities: Regular Research Grants
FAPESP's process: 12/22119-7 - Study of the decomposition mechanisms of the plant cell wall
Grantee:Camila Alves de Rezende
Support Opportunities: Regular Research Grants