[PDF] Top 20 Braz. J. Chem. Eng. vol.25 número2

... putida PGA1 culture in a defined aqueous medium with a fatty acid mixture as carbon source can be described by using a Tessier- type model which incorporates the limiting substrate ([r] ... See full document

... and Lanzetta R., Synthesis and Characterization of Potentially Biodegradable Thermotropic Polyesters Based on p-Hydroxybenzoic Acid and Glycolic Acid, Journal of Polymer Science, Par[r] ... See full document

... The authors would like to thank CNPq for the partial financial support of this work.[r] ... See full document

... Enzyme Extraction and Partial Purification Unless otherwise stated, the entire procedure was carried out at 0-4 o C in a cold room. Cabbage leaf tissue (10 g) was cut into small pieces and blended for 30 sec at low speed ... See full document

... W., Extraction of Annatto Seed Pigment by Supercritical Carbon Dioxide, Journal of Food Science, 56, No. G., Experimental Analysis of the Process of Drying Urucum (Bixa orellana L.) i[r] ... See full document

... Holland's genetic algorithm is intended to simulate nature's genetic algorithm in the following manner. The first step is to represent a solution to the problem by a string of genes t[r] ... See full document

... 40% conversion) the viscosity of the polymer phase is quite high, which results in limitations of the diffusion of the inhibitor inside the polymer particles, where the initiator is l[r] ... See full document

... Considering that the influence of some factors, like surface area, particle size and surface morphology on the properties of microparticles should be known before designing drug deliv[r] ... See full document

... Keywords : Barium sulphate; Precipitation; Barium chloride; Ammonium sulphate; Reaction crystallization kinetics; Size-dependent growth (SDG); DTM MSMPR crystallizer; DT MSMPR crystalli[r] ... See full document

... Evaluation of Membrane Separation Properties For separation tests, the polymeric membranes were mounted tightly between the two stirred chambers in an H-shaped two-compartment cell with constant stirring and permeation ... See full document

... I., An Investigation of the Kinetic Parameters of the o-Xylene Oxidation Process Carried out in a Fixed Bed of High-Productive Vanadia-Titania Catalyst, Chemical Engineering Science,[r] ... See full document

... In the first step, the binary interaction parameters were estimated using plant data of four different polymer grades (two grades, A and B, of high molecular weight, about 280,000, an[r] ... See full document

... In this context, the main objective of this work is to assess the effect of process extraction variables (temperature, pressure and solvent density) on the chemical profile and the an[r] ... See full document

... Changes in absorbance at 420 nm and ascorbic acid during thermal treatment of clarified cashew apple juice could be described by first-order kinetics, showing the correlation between [r] ... See full document

... . During the first 25 to 30 h of cultivation, when cells were growing and red pigment production had not exceeded 0.1 U of absorbance, C was not controlled and varied between 70 and 100% of saturation ... See full document

... Summarizing the results of the drying kinetics modeling, an excellent fit of the experimental data was obtained using Page’s model (natural and forced convective drying) and an adequa[r] ... See full document

... Abstract - Bacillus subtilis NRC33a levansucrase was immobilised on different carriers using different immobilisation methods including physical adsorption, covalent binding, ionic bin[r] ... See full document

... ABZ and E-CD were mixed in the following molar ratios: 1:1, 1:2, 1:4, 1:6, 1:8, and 1:10 in accordance with a procedure similar to that given by Bassani et al. (1996). For the 1:1 molar ratio, ABZ (21.0 mg) was added to ... See full document

... However, there are few examples of the use of hydrophobic wastes as cheap substrates, for instance, waste frying oils, used lubricant oils and oily sludge from petroleum refineries ([r] ... See full document

... from hydrodynamic studies (Camargo et al., 2005). These studies were performed with a conventional stimulus response procedure, using both “step and pulse” perturbations when the configuration was continuous flux, and ... See full document