Publications in International Journals / Series (Article (International))
Extraction of antioxidant phenolic compounds from spent coffee grounds
- Mussatto, Solange I.; Ballesteros, Lina F.; Martins, Sílvia; Teixeira, José A.
- Separation and Purification Technology, 83(1), 173-179, 2011
Publisher: Elsevier
Abstract
The extraction of antioxidant phenolic compounds from spent coffee grounds (SCG) was studied. Extraction experiments were carried out by the conventional solid–liquid method, using methanol as solvent at different concentrations (20–100%), solvent/solid ratios (10–40 ml/g SCG), and extraction times (30–90 min), and the influence of these operational variables on the content of total phenolic compounds and antioxidant activity of the produced extracts was evaluated. Flavonoids, chlorogenic acid, and protocatechuic acid were found in all the produced extracts and were also quantified. A strong i ...
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