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The fruits pulp processing industry generates wastes as barks, stalks and seeds, which are often wasted, but can be used as ingredients for development of new food productsThe aim of this work was to evaluate the drying kinetics and the physicochemical quality of residues from the fruits pulp processing industry. The drying kinetics of five agroindustrial residues (mango, pineapple, acerola, guava and graviola) were determined, which were submitted to physicalchemical analyzes (moisture, dry extract, ash, total acidity, pH and activity of water) before and after oven drying with forced air circulation at 60°C. The results were evaluated using a completely randomized design in a factorial scheme, applying Analysis of Variance (ANOVA) and comparison of means by the Tukey test at 5% of significance. Good adjustments (R>0.98) were observed for drying kinetics. After drying, most of the residues showed a reduction in the physical-chemical parameters of moisture, water activity and pH, as well as increase of dry extract, ashes and total acidity. It is inferred that graviola and guava residue indicated better responses to experimental imposed conditions, also requiring the rying temperature variation study and physical evaluation, chemical and microbiological stability. Feitosa et al./Cinética de secagem.../v34n1p134-141 (2019) 135

CINÉTICA DE SECAGEM DOS RESÍDUOS DA AGROINDÚSTRIA PROCESSADORA DE POLPA DE FRUTAS