Apr 28, 2013 - which is the thin tegument of the outer layer of green coffee beans, is the .... As are the absorbance of the control solution and the absor- bance of the .... 2 Pareto chart for the effects of ethanol concentration (X1), solvent/ solid ratio (X2) ..... oxidant phenolic compounds from brewer's spent grains. Separation ...
Food Bioprocess Technol (2014) 7:1322–1332 DOI 10.1007/s11947-013-1115-7
ORIGINAL PAPER
Selection of the Solvent and Extraction Conditions for Maximum Recovery of Antioxidant Phenolic Compounds from Coffee Silverskin Lina F. Ballesteros & José A. Teixeira & Solange I. Mussatto
Received: 6 February 2013 / Accepted: 11 April 2013 / Published online: 28 April 2013 # Springer Science+Business Media New York 2013
Abstract The extraction of antioxidant phenolic compounds from coffee silverskin (CS) was studied. Firstly, the effect of different solvents (methanol, ethanol, acetone, and distilled water) on the production of antioxidant extracts was evaluated. All the extracts showed antioxidant activity (FRAP and DPPH assays), but those obtained with methanol and ethanol had significantly higher (p
