Supercritical anti-solvent process as an alternative technology for vitamin complex encapsulation using zein as wall material: Technical-economic evaluation

Autor(es)

Rosa, Maria Thereza M. G. ^{[1, 2]} ; Alvarez, Victor H. ^{[1, 3]} ; Albarelli, Juliana Q. ^[2] ; Santos, Diego T. ^[2] ; Meireles, M. Angela A. ^[2] ; Saldana, Marleny D. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Alberta, Dept Agr Food & Nutr Sci, Edmonton, AB T6G 2P5 - Canada

^[2] Univ Estadual Campinas, UNICAMP, Sch Food Engn, LASEFI, DEA, FEA, R Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil

^[3] Camber Technol Corp, Edmonton, AB T6G 2M9 - Canada

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF SUPERCRITICAL FLUIDS; v. 159, MAY 1 2020.
• Citações Web of Science: 1

Resumo

The objective of this study was to investigate the technical-economic feasibility of supercritical antisolvent (SAS) technique for the precipitation of a vitamin complex containing riboflavin, delta-tocopherol and beta-carotenein zein microcapsules. First, the following parameters were investigated for the precipitation of pure zein: pressure (7.0-16.0 MPa), anti-solvent flow rate (20-60 gimin), solution flow ratio (0.5-1.5 mL/min) and concentration of zein in an aqueous ethanol solution (0.02-0.04 g/mL). Then, at optimized SAS condition for zein precipitation (pressure of 16 MPa, temperature of 313 K, zein concentration of 0.02 mg/mL, solution flow rate of 1 mL/min and anti-solvent flow rate of 60 g/min) was performed the co-precipitation of the vitamins with zein. The results showed that the mean particle size of the microcapsules varied from 8 to 18 mu m, depending on the vitamins encapsulated, being its morphology spherical, meanwhile the precipitation yield was within the range of 41-82 g/100 g. (C) 2019 Published by Elsevier B.V. (AU)

• Processo FAPESP: 13/18114-2 - Aproveitamento integral de biomassas utilizando fluidos sub/supercríticos: avaliação de cenários tecnológicos sob ópticas ambiental, energética e econômica
• Beneficiário: Juliana Queiroz Albarelli
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado