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Now showing items 21-30 of 43
Avaliação da transferência de calor em fermentações alcoólicas convencional e extrativa
(Universidade Federal de São Carlos, 2019-02-26)
The inhibitory effect of ethanol on yeast and the temperature rise during the fermentation are the major drawbacks of the conventional ethanol production process. The use of extractive alcoholic fermentation with CO2 ...
Estudo da produção de bioetanol e biobutanol a partir da palha de cana-de-açúcar
(Universidade Federal de São Carlos, 2019-02-18)
The present thesis studied the hydrolysis and fermentation steps of the hydrothermally pretreated sugarcane straw (cellulosic fraction), aiming bioethanol and biobutanol production. In regards to the hydrolysis step, it ...
Avaliação de adsorventes obtidos a partir de resíduos agroindustriais para a remoção dos inibidores gerados no pré-tratamento da biomassa lignocelulósica
(Universidade Federal de São Carlos, 2019-02-26)
The pretreatment of lignocellulosic biomass generates phenolic compounds and furaldehydes that inhibit the enzymes and yeast used in the process of hydrolysis of cellulose and alcoholic fermentation. In this context, the ...
Partículas rugosas de sílica híbrida aplicadas na transesterificação catalítica
(Universidade Federal de São Carlos, 2019-03-15)
Heterogeneous catalysts are potentially responsible for reducing the cost of producing biodiesel, due to its reusability or use in continuous process. As-synthesized hybrid silicas, containing siloxy sites, can be used as ...
Sacarificação e isomerização simultâneas de dextrina na produção de xarope de frutose por ação sinérgica de CLEAs magnéticos de amiloglicosidase e Sweetzyme®
(Universidade Federal de São Carlos, 2019-07-25)
High fructose syrup is a sweetener widely used as a substitute for sucrose by the food and beverage industry. It has many advantages such as relative sweetness superior to sucrose, high solubility, crystallization resistance ...
Zeólitas ácidas aplicadas na esterificação catalítica
(Universidade Federal de São Carlos, 2019-03-08)
With respect the sugarcane sector expansion in Brazil, significant quantities of by-products have been generated, among them the fusel oil with potential for reuse due to the high volume produced and its rich isopentanol ...
Contribuições ao estudo da secagem da borra de café em leito vibrofuidizado
(Universidade Federal de São Carlos, 2019-03-15)
Brazil is the largest producer of coffee in the world, half of this production is destined to the soluble coffee industry, that generates a amount of waste. The spent coffee grounds leave the fabrication processo f the ...
Extração e caracterização cinético de lipase ácida presente na semente de mamona
(Universidade Federal de São Carlos, 2019-02-26)
Several studies have been conducted regarding acidic lipase from castor bean seed, most of them using the enzyme in the form of solid seed extract (SSE), which is extracted through grinding and removal of the oil. Kinetic ...
Produção de proteína recombinante a de superfície de pneumococo em escherichia coli: análise econômica e influência da plataforma de expressão
(Universidade Federal de São Carlos, 2019-07-24)
Streptococcus pneumoniae diseases represent a widespread public health. Pneumococcal surface protein A (PspA), which is recognized as one of the main virulence factors of this bacterium, has gained relevance in coverage ...
Proteína de soja como aditivo na sacarificação enzimática da biomassa vegetal: desenvolvimento e análise tecno-econômica do processo
(Universidade Federal de São Carlos, 2019-02-28)
The implementation of the biochemical conversion process of lignocellulosic biomass into biofuels and other bioproducts still have some technological challenges to be overcome, such as low yield of the enzymatic hydrolysis ...