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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.)

Concentration of bioactive compounds from grape marc using pressurized liquid extraction followed by integrated membrane processes

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Author(s):
Vitor Pereira, Debora Tamires [1] ; Marson, Gabriela Vollet [1, 2] ; Fernandez Barbero, Gerardo [3] ; Tarone, Adriana Gadioli [1] ; Betim Cazarin, Cinthia Bau [1] ; Hubinger, Miriam Dupas [1] ; Martinez, Julian [1]
Total Authors: 7
Affiliation:
[1] Univ Estadual Campinas, Sch Food Engn, UNICAMP, BR-13083862 Campinas, SP - Brazil
[2] Univ Montpellier, Inst Europeen Membranes, ENSCM, CNRS, UM, CC 047, 2 Pl Eugene Bataillon, F-34095 Montpellier - France
[3] Univ Cadiz, Fac Sci, Dept Analyt Chem, CeiA3, IVAGRO, Republ Saharaui Ave S-N, Cadiz 11510 - Spain
Total Affiliations: 3
Document type: Journal article
Source: Separation and Purification Technology; v. 250, NOV 1 2020.
Web of Science Citations: 0
Abstract

The integration of pressurized liquid extraction (PLE) with membrane separation technology was used to recover and concentrate monomeric anthocyanins and total phenolics from grape marc. The extracts obtained by PLE were subjected to a preliminary study of stirred dead-end filtration using different commercial flat sheet membranes of nanofiltration (NF). In addition, to reduce membrane fouling and the content of solids in the feed, previous microfiltration (MF) and ultrafiltration (UF) processes were evaluated. The membranes that presented the best performances were selected for cross-flow filtration. The flux of permeate, the retention of bioactive compounds and antioxidant capacity, and the characterization of the membrane surfaces were used to evaluate the performance of the filtration processes. The results obtained in this study suggest that the sequential process based on the previous MF with the MV020 membrane of the grape extract obtained by PLE, followed by the NF step with the NP010 membrane, was the most effective in the concentration of bioactive compounds. The sequential process MV020-NP010 provided excellent results in terms of permeate flux, concentration factor (2.4), retention coefficients of monomeric anthocyanins (78.2%) and total phenolics (71%), and high antioxidant capacity (52%) compared to other tested NF membranes. Fifteen anthocyanins were concentrated in the extracts by UHPLC-UV-Vis. The NP010 membrane had the smallest change in membrane roughness and functional groups after NF. It is concluded that the integration of PLE with the projected sequential process (MV020-NP010) is efficient for the recovery and concentration of bioactive compounds from grape marc, being promising for obtaining functional products with high added value. (AU)

FAPESP's process: 18/04067-6 - Membrane concentration and fractionation of brewer spent yeast protein hydrolysate
Grantee:Gabriela Vollet Marson
Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
FAPESP's process: 18/15737-2 - Passion fruit rind biorefinery: extraction of pectin and bioactive compounds and concentration of the extract with membranes
Grantee:Débora Tamires Vitor Pereira
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 17/23670-2 - Biorefinery for the recovery of by-products from passion fruit processing through high pressure technologies
Grantee:Julian Martínez
Support Opportunities: Regular Research Grants
FAPESP's process: 16/18465-8 - Membrane concentration and fracionation of brewer spent yeast protein hydrolyzate
Grantee:Gabriela Vollet Marson
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)