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Maximization of fructooligosaccharides and β-fructofuranosidase production by A...
Mussatto, Solange I.; Ballesteros, Lina F.; Martins, Silvia; Maltos, Dulce A .F.; Aguilar, Cristóbal N.; Teixeira, J. A.The conditions of temperature, moisture content, and inoculum rate able to maximize the production of fructooligosaccharides (FOS) and β-fructofuranosidase (FFase) enzyme by solid-state fermentation were established. Fermentation assays were performed using the support material (coffee silverskin) moistened to 60, 70, or 80 % with a 240-g/l sucrose solution and inoculated with a spore suspension of Aspergillus ...
Extraction of antioxidant phenolic compounds from spent coffee grounds
Mussatto, Solange I.; Ballesteros, Lina F.; Martins, Silvia; Teixeira, J. A.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 antio...
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