Xylanase
Mostrando 25-36 de 319 artigos, teses e dissertações.
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25. ETHANOL PRECIPITATION OF GLYCOSYL HYDROLASES PRODUCED BY Trichoderma harzianum P49P11
AbstractThis study aimed to concentrate glycosyl hydrolases produced by Trichoderma harzianum P49P11 by ethanol precipitation. The variables tested besides ethanol concentration were temperature and pH. The precipitation with 90% (v/v) ethanol at pH 5.0 recovered more than 98% of the xylanase activity, regard less of the temperature (5.0, 15.0, or 25.0 °C).
Braz. J. Chem. Eng.. Publicado em: 2015-06
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26. Endophytic fungi from medicinal plant Bauhinia forficata: Diversity and biotechnological potential
Bauhinia forficata is native to South America and used with relative success in the folk medicine in Brazil. The diversity, antibacterial activity, and extracellular hydrolytic enzymes of endophytic fungi associated with this plant were studied. Plant samples, which included leaves, sepals, stems, and seeds, were used. Ninety-five endophytic fungal were isol
Braz. J. Microbiol.. Publicado em: 31/03/2015
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27. STATISTICAL OPTIMIZATION OF MINERAL SALT AND UREA CONCENTRATION FOR CELLULASE AND XYLANASE PRODUCTION BY Penicillium echinulatum IN SUBMERGED FERMENTATION
Abstract Penicillium echinulatum S1M29 is a mutant with cellulase and xylanase production comparable to the most studied microorganisms in the literature. However, its potential to produce these enzymes has not been fully investigated. This study aimed at optimizing salt and urea concentrations in the mineral solution, employing the response surface methodol
Braz. J. Chem. Eng.. Publicado em: 2015-03
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28. Laccase produced by a thermotolerant strain of Trametes trogii LK13
Thermophilic and thermotolerant micro-organisms strains have served as the natural source of industrially relevant and thermostable enzymes. Although some strains of the Trametes genus are thermotolerant, few Trametes strains were studied at the temperature above 30 °C until now. In this paper, the laccase activity and the mycelial growth rate for Trametes
Braz. J. Microbiol.. Publicado em: 2015-03
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29. Performance and some intestinal functions of broilers fed diets with different inclusion levels of sunflower meal and supplemented or not with enzymes
Enzyme supplementation of diets enhances broiler performance by improving some of the basic production parameters such as average feed intake, feed conversion ratio, or average weight gain. The enzyme NSPase is commonly used in broiler diets containing high levels of viscous cereals such as barley, oat, wheat, or sorghum. The use of NSPase in diets with diff
Rev. Bras. Cienc. Avic.. Publicado em: 2015-03
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30. Methane production of two roughage and total mixed ration as influenced by cellulase and xylanase enzyme addition
In recent decades supplementation of animal feeds with exogenous fibrolytic enzymes has substantially improved digestibility and animal performance. However, information related to associated methane production is limited and inconsistent. This study evaluated the effect of cellulase and xylanase enzymes on in vitro methane production of Eragrostis curvula h
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
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31. Molecular characterization of a Xylanase-producing fungus isolated from fouled soil
Xylanase (EC 3. 2. 1. 8), hydrolyzes xylo-oligosaccharides into D-xylose and required for complete hydrolysis of native cellulose and biomass conversion. It has broad range of applications in the pulp and paper, pharmaceutical and Agri-food industries. Fifty fungal species were isolated from the fouled soil around an oil refinery and screened for the product
Braz. J. Microbiol.. Publicado em: 2014-12
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32. Characterization of xylanase from Streptomyces sp. FA1 and its application for bamboo hydrolysis
Native cellulose can be disintegrated into substructures with nano-size dimension through electronspinning. Typically, the most common source material available for cellulose nano-fiber production is wood. More attempts are employed to find new suitable resources to produce nano-cellulose at present. Bamboo boasts the abundant resource in China and possesses
Matéria (Rio J.). Publicado em: 2014-12
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33. Os efeitos de xilanase e vitamina A em dieta baseada no trigo (DBT) sobre o desempenho, digestibilidade de nutrientes, morfologia do intestine delgado e viscosidade da digesta em frangos de corte
Investigou-se o efeito de dieta baseada no trigo (DBT) e suplementada com xilanase e vitamina A sobre o desempenho, digestibilidade dos nutrientes, morfologia intestinal e viscosidade digesta de frangos de corte. Baseado num esquema aleatório, frangos de 240 dias foram divididos em grupos de seis dietas experimentais, com quatro repetições, com 10 frangos
Acta Sci., Anim. Sci.. Publicado em: 2014-12
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34. Production of plant cell wall degrading enzymes by monoculture and co-culture of Aspergillus niger and Aspergillus terreus under SSF of banana peels
Filamentous fungi are considered to be the most important group of microorganisms for the production of plant cell wall degrading enzymes (CWDE), in solid state fermentations. In this study, two fungal strains Aspergillus niger MS23 and Aspergillus terreus MS105 were screened for plant CWDE such as amylase, pectinase, xylanase and cellulases (β-glucosidase,
Braz. J. Microbiol.. Publicado em: 2014-12
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35. Performance and morphometry of the intestinal mucosa of laying hens fed diets containing xylanase
The objective of this study was to evaluate the effect of dietary energy level reduction and xylanase inclusion on the performance and on intestinal mucosa morphometry of two- to six-week-old laying hens. In total, 400 Hy-line W36 laying hens were distributed according to a completely randomized design in 2 x 2 factorial arrangement (energy level x inclusion
Rev. Bras. Cienc. Avic.. Publicado em: 2014-09
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36. Effects of Lactobacillus buchneri on the nutritive value of sugarcane silage for finishing beef bulls
Lactobacillus buchneri 40788 and the fibrolytic enzymes β-glucanase and xylanase were applied to chopped sugarcane to study their effects on the nutritive value of silage. Sugarcane was mechanically harvested after 14 mo of growth and treated without (control) or with L. buchneri at a theoretical application rate of 5 × 10(4) cfu/g, 1 × 10(5) cfu/g, or 1
R. Bras. Zootec.. Publicado em: 2014-01