Resíduo de laranja: estudo da cinética de secagem das sementes e influência da temperatura na qualidade do óleo

Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

Produção de lipase por fermentação em estado sólido em biorreator de leito fixo

Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

Influência de pré-tratamentos com emulsões a base de lecitina e óleo de soja na cinética de secagem da uva rubi

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito da concentração do meio suporte e relação entre áreas no desempenho de reatores aeróbios de leito fluidizado com circulação interna no tratamento de esgoto doméstico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Utilização de reator aeróbio de leito fluidizado com circulação em tubos concêntricos no tratamento de águas residuarias da produção intensiva de tilapia com recirculação da água tratada

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise e demonstração do comportamento do escoamento bifásico gás-sólido

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

HYGROSCOPIC PROPERTIES OF ORANGE PULP AND PEEL

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Hydrogen sulphide removal from air by biotrickling filter using open-pore polyurethane foam as a carrier

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Uso de invertase imobilizada em pó de sabugo de milho para produção de açúcar invertido

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo da fluidodinâmica de uma mistura de sólidos em um leito fluidizado gás-sólido

Fluidization consists in a bed of solid particles acquire fluid behavior by using a fluid (in this case air) flowing through the solid particles. Because of this, it can be a good mix of these materials, as well as to show increased rates of heat and mass transport. The fluid flowing through the spaces between the particles gives an interstitial velocity, that if is too low does not cause movement of the particulates. The gradual increase in speed will generate small vibrations between the particles promotes its fluidization. Our study focus in the fluid state of solid bed , when the fluid velocity reaches a state where the drag forces are sufficient to support the weight of the solid particles making these solids behave like fluids . Knowledge of the minimum velocity required to fluidize that particles is of great importance since below this speed there is no fluidization, and far above it, the solids are carried out of the bed. The fluidized bed reactor is widely used in physics and engineering, particularly in gas-solid fluidization, with emphasis on thermochemical processes

Tratamento de efluentes provenientes de abatedouro de bovinos por meio de reator enzimático seguido de reator aeróbio operado em bateladas sequenciais

Brazil has one of the largest cattle herds in the world, so the cattle slaughter is one of the most important economic activities in the Brazilian market. But this activity requires a high demand of water, resulting in serious problems about the correct disposal of wastewater generated in the process. This effluent has a high pollution load, becoming its receiving bodies (streams and rivers) unfit for various activities such as public water supply, recreation, fisheries. To minimize the environmental impacts of its industrial wastewater and fallow the local environmental legislation, refrigerators must make the treatment of these effluents. This study aimed to verify the efficiency of a enzymatic reactor, when occur hydrolysis of lipids present in the effluent industrial of an cattle slaughter industry. The treatment system used was composed of two separate reactors: one being the anaerobic fluidized bed reactor (AFBR), inoculated with immobilized enzymes on the matrix support, and the other by sequential batch reactor (SBR) inoculated with activated sludge. Whereas, the reactors have been developed and installed at the Wastewater Treatment Laboratory, Faculdade de Ciências e Tecnologia, UNESP, campus Presidente Prudente. The procedure operating occurred differently for each reactor: preparation and inoculation of enzyme granules, filling the reactor, hydrolysis, and AFBR emptying, filling, aerobic reaction, sedimentation, and emptying the SBR. We performed three experimental stages, with the first and second stage of the work were done reactor analyzes separately, and the third step of the analysis were made with the interconnected reactors... (Complete abstract electronic access below)

Estudo sobre desruptores endócrinos em sistemas aquáticos: detecção e perspectivas de tratamento das águas do Rio Aporé-MS/GO, utilizando-se adsorventes sólidos

Pós-graduação em Ciência dos Materiais - FEIS

Qualidade e alterações estruturais do café arábica submetido a alternância da temperatura na secagem

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Improvement of water transport and carotenoid retention during drying of papaya by applying ultrasonic osmotic pretreatment

The effect of ultrasound and osmotic dehydration pretreatments on papaya drying kinetics was investigated. The ultrasound pretreatment was carried out in an ultrasonic bath at 30 A degrees C. The osmotic pretreatment in sucrose solution was carried out in an incubator at 34 A degrees C and agitation of 80 rpm for 210 min. The drying process was conducted in a fixed bed dryer at 70 A degrees C. Experimental data were fitted successfully using the Page model for dried fresh and pretreated fruits, with coefficient of determination greater than 0.9992 and average relative error lower that 14.4 %. The diffusional model was used to describe the moisture transfer, and the effective water diffusivity was identified in the order of 10(-9) m(2) s(-1). It was found that drying rates of osmosed fruits were the lowest due to the presence of infused solutes, while the ultrasound pretreatment contributed to faster drying rates. Evaluation of the dried fruit was performed by means of total carotenoids retention. Ultrasound treatments in distilled water prior to air-drying gave rise to dried papayas with retention of carotenoids in the range 30.4-39.8 % and the ultrasonic-assisted osmotic dehydration of papayas showed carotenoids retention values up to 64.9 %, whereas the dried fruit without pretreatment showed carotenoids retention lower than 24 %.

Continuous enzymatic interesterification of milkfat with soybean oil produces a highly spreadable product rich in polyunsaturated fatty acids

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)