Consulta: creatorFacets:"Falkoski,Daniel Luciano"
Registros recuperados: 4
Data/hora: 05/06/2024 18:14:33

Stability of enzyme complex solid-state fermentation subjected to the processing of pelleted diet and storage time at different temperatures
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Moura,Guilherme de Souza; Lanna,Eduardo Arruda Teixeira; Donzele,Juarez Lopes; Falkoski,Daniel Luciano; Rezende,Sebastião Tavares de; Oliveira,Maria Goreti de Almeida; Albino,Luiz Fernando Teixeira.
ABSTRACT The effects of processing of pelleted diets and their storage time on the stability of the enzyme complex SSF (solid-state fermentation) were evaluated. Two diets were formulated with the same nutritional composition, differing only in the Schizochytrium sp. levels (0 g kg-1 and 50 g kg-1). The samples were collected during the following processing steps: mixing, then pelleting, and then oven. To evaluate the storage time, the diet ready after drying was considered as day 1. On this day, two samples were obtained, being one kept in a room with ambient temperature of 25 °C and another stored in freezer at -18 °C. At 15, 30, 45, and 60 days, sub-samples were taken. All samples from the processing step and storage time were sent to the laboratory and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Feed additive; Fermentation; Microbial additive.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200731

Effects of enzyme complex SSF (solid state fermentation) in pellet diets for Nile tilapia
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Moura,Guilherme de Souza; Lanna,Eduardo Arruda Teixeira; Filer,Keith; Falkoski,Daniel Luciano; Donzele,Juarez Lopes; Oliveira,Maria Goreti de Almeida; Rezende,Sebastião Tavares de.
The effects of enzyme complex SSF (solid state fermentation) on growth performance and the availability of sucrose and monosaccharides in the chyme of Nile were involved. The study included 360 fish (70g±4.43) in a completely randomized design with six dietary treatments (0, 50, 100, 150, 200 and 250 ppm of SSF) arranged in six replicates, with 10 fish per replicate. Every 15 days, one tilapia of each experimental unit was sacrificed for analyses of carbohydrate in the chyme. On day 60 of the experiment, the performance parameters were measured. There was a linear effect according to treatment for final weight and weight gain. For the other performance parameters, there were no differences. There was quadratic effect for sucrose and glucose in function of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Enzymes; Fish nutrition; HPLC; Oreochromis niloticus.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001000001

Hydrolysis of galacto-oligosaccharides in soy molasses by α -galactosidases and invertase from Aspergillus terreus
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Reis,Angélica Pataro; Guimarães,Valéria Monteze; Ferreira,Joana Gasperazzo; Queiroz,José Humberto de; Oliveira,Maria Goreti Almeida; Falkoski,Daniel Luciano; Almeida,Maíra Nicolau de; Rezende,Sebastião Tavares de.
Two α -galactosidase (P1 and P2) and one invertase present in the culture of Aspergillus terreus grown on wheat straw for 168 h at 28ÂºC were partially purified by gel filtration and hydrophobic interaction chromatographies. Optimum pH and temperatures for P1, P2 and invertase preparations were 4.5-5.0, 5.5 and 4.0 and 60, 55 and 65ÂºC, respectively. The K M app for Ï -nitrophenyl-α -D-galactopyranoside were 1.32 mM and 0.72 mM for P1 and P2, respectively, while the K M app value for invertase, using sacarose as a substrate was 15.66 mM. Enzyme preparations P1 and P2 maintained their activities after pre-incubation for 3 h at 50ÂºC and invertase maintained about 90% after 6 h at 55 ÂºC. P1 and P2 presented different inhibition sensitivities by Ag+,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aspergillus terreus; Galactooligosaccharides; Α-galactosidase; Invertase; Soy molasses.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300029

Propriedades enzimáticas da enzima ALS de Cyperus difformis e mecanismo de resistência da espécie ao herbicida pyrazosulfuron-ethyl
Provedor de dados: Ciência Rural
Autores: Dal Magro,Taísa; Rezende,Sebastião Tavares de; Agostinetto,Dirceu; Vargas,Leandro; Silva,Antônio Alberto da; Falkoski,Daniel Luciano.
Cyperus difformis L. é uma planta daninha ocorrente em lavouras de arroz irrigado, que tem apresentado dificuldade de controle devido à resistência a herbicidas inibidores da enzima ALS. Os objetivos deste trabalho foram investigar características cinéticas da enzima ALS de biótipos de C. difformis e determinar as bases bioquímicas da resistência da espécie ao herbicida pyrazosulfuron-ethyl. Para isso, foram conduzidos experimentos em laboratório do BIOAGRO/UFV. O método utilizado baseou-se na metologia utilizada por CAREY et al. (1997) e adaptada por VARGAS et al. (1999), com algumas modificações. Foram avaliadas a concentração de substrato (piruvato) que fornece velocidade inicial igual à metade da velocidade máxima de reação (K M) e velocidade máxima de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetolactato sintase; Arroz irrigado; Enzima; Junquinho.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001200001