RT journal article
T1 A Combination of Aqueous Extraction and Polymeric Membranes as a Sustainable Process for the Recovery of Polyphenols from Olive Mill Solid Wastes
A1 Conidi, Carmela
A1 Egea-Corbacho Lopera, Agata
A1 Cassano, Alfredo
A2 Tecnologías del Medio Ambiente
K1 polyphenols
K1 olive mill solid wastes
K1 polymeric membranes
K1 ultrafiltration
K1 nanofiltration
AB Polyamide commercial membranes in flat-sheet configuration and with molecular weightcut-o  (MWCO) in the range of ultrafiltration (UF) to nanofiltration (NF) were tested for the recovery ofphenolic compounds fromclarified olive mill solid waste (OMSW) aqueous extracts. The performanceof selected membranes was evaluated in terms of productivity (permeate flux) and selectivity towardsbiologically active compounds (such as phenolic compounds, flavanols, and hydroxycinnamic acidsderivatives) and total antioxidant activity (TAA) as a function of transmembrane pressure (TMP).NF membranes produced higher permeate fluxes and a lower fouling index in comparison with UFmembranes. Retention of bioactive compounds was also significantly higher for NF membranes thanfor UF membranes. In particular, membranes with MWCO in the range 150–500 Da showed rejectiontowards flavanols and hydroxycinnamic acid derivatives of about 100%. On the other hand, therejection towards TAA and total polyphenols was of about 90% and 72%, respectively. Therefore,NF retentate fractions appear of practical interest for the production of food additives and foodsupplements due to their high antioxidant activity
PB MDPI
SN 2073-4360
YR 2019
FD 2019-11
LK http://hdl.handle.net/10498/22225
UL http://hdl.handle.net/10498/22225
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026