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A Rheological Model for Cupuassu (Theobroma grandiflorum) Pulp at Different Con...
Chaves, M.A.; Baptista, F.J.; Silva, J.N.; Rodrigues, L.; Viana, A.D.This work was made aiming at studying the best model for the rheological properties of Cupuassu (Theobroma grandiflorum, Schum) pulps with 14 (in nature), 17, 19, 23 and 25°Brix of total soluble solids (TSS) which were me asured at 20, 30, 40, 50 and 60°C temperature using a conc entric cylinder rheometer. The results were adjusted to the following nine models: Ostwald-de-Waele (power law), Bingham, Casson, Gen...
PHYSICOCHEMICAL PROPERTIES AND ACCEPTANCE OF JELLY AND NECTAR OF ARAZA AND PAPAYA
Chaves, M.A.; Soares, R.D.; Baptista, F.J.; Soares, E.C.; Pinto, E.G.; Sacramento, C.K.The main objective of this work was to evaluate the acceptance of jelly and nectars made from araza (Eugenia stipitata Mc Vaugh) and papaya. The following percentages of araza and papaya were, respectively, used: 50:50; 40:60; 30:70 and 20:80. For both pulps and products the variables studied were: acidity, pH, total content of soluble solids. Acceptance tests were conducted for the developed products. An inver...
Software for the calculation and modeling of effective diffusivity during osmot...
Chaves, M.A.; Baptista, F.J.This paper concerns a comprehensive and graphic computer program for the calculation of effective diffusivities and Fick’s Law model adjustment. The program was designed to be applicable to situations in which solid materials, with a specific geometry (cubes, infinite planes, spheres, infinite cylinders) and a given initial concentration are immersed in a solution with high and constant concentration. Shrinkage...
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