Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió acceptadaData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/207286
A green approach to phenolic compounds recovery from olive mill and winery wastes
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
The aim of this study was to evaluate the recovery of phenolic compounds from olive mill and winery wastes by conventional solid-liquid extraction (SLE) using water as the extraction solvent. The studied variables were extraction time (5–15 min), temperature (25–90 °C), solid-to-liquid ratio (1:10–1:100 (kg/L)), pH (3−10) and application of multiple extractions (1–3). The extraction efficiency was evaluated in terms of total phenolic content (TPC), determined by high performance liquid chromatography (HPLC-UV), but also from the recovery of some representative phenolic compounds. The optimized conditions were one extraction step, 10 min, 25 °C, 1:30 (kg/L), pH 5 for olive pomace, and one extraction step, 10 min, 70 °C, 1:100 (kg/L), pH 5 for winery residues. The extraction method is simple and suitable for scaling-up in industry, and the aqueous extracts are fully compatible with further purification schemes based on the use of membranes or resins. The optimized technique was applied to a set of different representative residues from olive mill and winery industries, to assess their suitability as sources for phenolic compounds recovery. The phenolic content in the extracts was evaluated by chromatographic analysis and by the Folin–Ciocalteu assay (FC). Furthermore, the antioxidant capacity was determined by 2,2-azinobis-3-etilbenzotiazolina-6-sulfonat (ABTS), 2,-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays. Because of their high contents in phenolic compounds and great antioxidant capacity, olive pomace and lees filters were identified as especially suited sources for phenolic compounds recovery.
Matèries
Matèries (anglès)
Citació
Citació
TAPIA-QUIRÓS, Paulina, MONTENEGRO-LANDÍVAR, Maria fernanda, VECINO, Xanel, ALVARINO, Teresa, CORTINA PALLÀS, José luis, SAURINA, Javier, GRANADOS I JUAN, Mercè, REIG, Mònica. A green approach to phenolic compounds recovery from olive mill and winery wastes. _Science of the Total Environment_. 2022. Vol. 835. [consulta: 14 de gener de 2026]. ISSN: 0048-9697. [Disponible a: https://hdl.handle.net/2445/207286]