Enzymatic Inactivation
Mostrando 1-12 de 205 artigos, teses e dissertações.
-
1. Enzymatic polyphenoloxidase inactivation with temperature and ozone in sugarcane variety RB 92579 to produce lower color sugar
Resumo Algumas variedades de cana têm alta atividade da enzima polifenoloxidase, prejudicando o processo de produção de açúcar de cor menos escura. Polifenoloxidase (PPO) é uma enzima pertencente ao grupo de oxidorredutases e está presente numa quantidade maior ou menor, dependendo da variedade de cana-de-açúcar, das condições climáticas, da ida
Braz. J. Food Technol.. Publicado em: 25/02/2019
-
2. Kinetics and Thermodynamics of Thermal Inactivation of β-Galactosidase from Aspergillus oryzae
ABSTRACT For optimization of biochemical processes in food and pharmaceutical industries, the evaluation of enzyme inactivation kinetic models is necessary to allow their adequate use. Kinetic studies of thermal inactivation of β-galactosidase from Aspergillus oryzae were conducted in order to critically evaluate mathematical equations presented in the lite
Braz. arch. biol. technol.. Publicado em: 13/09/2018
-
3. Thermal inactivation of polyphenoloxidase and peroxidase in Jubileu clingstone peach and yeast isolated from its spoiled puree
The thermal inactivation of yeast isolated from spoiled Jubileu peach puree and that of polyphenoloxidase (PPO) and peroxidase (POD) in cv. Jubileu, which is widely cultivated in southern Rio Grande do Sul state, Brazil, were studied. PPO and POD were extracted using the protein powder method and submitted to partial purification by precipitation followed by
Food Sci. Technol. Publicado em: 2014-03
-
4. Obtenção e caracterização de hidrolisados enzimáticos de proteínas do farelo de soja
Soy protein concentrate (SPC) is used as an ingredient for food and animal feed. It is obtained from defatted soybean meal by extracting sugars and other soluble compounds. The main consequence of the extraction process is removal or inactivation of most anti-nutritional factors of soybean, which makes this product can be used in place of animal proteins in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2012
-
5. Isolamento, seleção e cultivo de bactérias Produtoras de lipases para tratamento de Efluentes da indústria de alimentos / Isolation, selection and cultivation of bacteria Producing lipases for treating Effluents of the food industry
The present work was to isolate, select and cultivate microorganisms that produce lipases to apply the wastewater treatment industry of potato chips. For the isolation of microorganisms was used for industrial effluent and sewage treatment plant. The selection of the strain producing lipase was performed on solid medium containing tributyrin and in liquid me
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2012
-
6. Produção de xilo-oligossacarídeos a partir de lignocelulósicos pré-tratados com xilanases imobilizadas e estabilzadas
Endoxylanase, an important industrial enzyme, cleaves ß-1,4-xylanosidic bounds in xylan chains, main plant hemicellulose component. Xylan can be explored to produce many products, among them xylo-oligosaccharides, XOS, made of xylose monomers (2 to 7 units). XOS are considered to be prebiotic ingredients and can improve humans health. XOS are produced by xy
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
-
7. Desenvolvimento e caracterizaÃÃo centesimal, microbiolÃgica e sensorial de hidrolisados protÃicos de tilÃpia do Nilo (Oreochromis niloticus) / Development and proximate, microbiological and sensory characterization of Nile tilapia (Oreochromis niloticus) protein hydrolyzed
The Nile tilapia is a specie that has been highlighted in recent years for various reasons, however, during their filleting there is a sub use of its chips, resulting in very rich protein sources waste that could be used in food. An alternative for these waste can be the development of protein hydrolyzed, which are constructed using enzymes that hydrolyze pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2012
-
8. Thermal stability of the immobilized fructosyltransferase from Rhodotorula sp
The thermal stability of the extracellular fructosyltransferase (FTase) from Rhodotorula sp., recovered from cultivation medium by ethanol precipitation and immobilized onto niobium ore, was studied by Arrhenius plot, half - life profile, half - inactivation temperature (T50) and thermodynamic parameters. The Arrhenius plot showed two different behaviors wit
Brazilian Journal of Chemical Engineering. Publicado em: 2011-09
-
9. Estudo da cinética de branqueamento e de secagem por ar quente e liofilização do alho (Allium sativum L.)
O alho (Allium sativum L.) originário das zonas temperadas da Ásia Central é uma planta herbácea da família Alliaceae; possui como principais constituintes funcionais a alicina e a inulina. A alicina é um componente ativo e responsável pelo cheiro característico e atividade antimicrobiana, enquanto que a inulina é classificada como prebiótico e com
Publicado em: 2011
-
10. Influência da homogeneização a alta pressão sobre a retenção de antocianinas presentes na polpa de açaí (Euterpe oleraceae Mart.). / Influence of high pressure homogenization on retention of the anthocyanin in açaí pulp (Euterpe oleraceae Mart.).
The effect of high pressure homogenization on the stability of anthocyanins and on the inactivation of enzymatic activity of peroxidase and polyphenoloxidase from açaí pulp was studied in this work. Experimental investigations were carried out in two steps. Firstly, açaí pulp had its physicochemical properties and rheological behavior determined. Secondl
Publicado em: 2009
-
11. Processamento de folhas de nim: inativação enzimática e secagem
O objetivo deste trabalho foi desenvolver tecnologia de processamento de folhas de Nim (Azadirachta indica) utilizando inativador enzimático (sapecador) em escala piloto seguido de secagem em desidratador utilizando ar aquecido. A melhor condição operacional consistiu no sapeco por 5 min, operando o sapecador na condição de 200,1 rpm, obtendo-se produto
Publicado em: 2009
-
12. Serine protease activities in Oxysarcodexia thornax (Walker) (Diptera: Sarcophagidae) first instar larva
We report for the first time the expression of multiple protease activities in the first instar larva (L1) of the flesh fly Oxysarcodexia thornax (Walker). Zymographic analysis of homogenates from freshly obtained L1 revealed a complex proteolytic profile ranging from 21.5 to 136 kDa. Although some activities were detected at pH 3.5 and 5.5, the optimum pH f
Memórias do Instituto Oswaldo Cruz. Publicado em: 2008-08