Aspergillus Oryzae
Mostrando 13-24 de 187 artigos, teses e dissertações.
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13. Solid-state fermentation of Acanthogobius hastaprocessing by-products for the production of antioxidant protein hydrolysates with Aspergillus oryzae
Functional properties and antioxidative activity of a protein hydrolysate prepared from Acanthogobius hasta processing by-product protein during solid-state fermentation with Aspergillus oryzae were investigated. Overall, protease activity increased with the degree of hydrolysis (DH) decreased during solid-state fermentation. All the protein hydrolysate had
Braz. arch. biol. technol.. Publicado em: 06/03/2015
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14. CARBOXYLATION OF SILVER NANOPARTICLES FOR THE IMMOBILIZATION OF β-GALACTOSIDASE AND ITS EFFICACY IN GALACTO-OLIGOSACCHARIDES PRODUCTION
The present study investigated the carboxylation of silver nanoparticles (AgNPs) by 1:3 nitric acid-sulfuric acid mixtures for immobilizing Aspergillus oryzae β-galactosidase. Carboxylated AgNPs retained 93% enzyme upon immobilization and the enzyme did not leach out appreciably from the modified nanosupport in the presence of 100 mmol L-1 NaCl. Atomic forc
Quím. Nova. Publicado em: 2015-03
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15. Application of decolourized and partially purified polygalacturonase and α-amylase in apple juice clarification
Polygalacturonase and α-amylase play vital role in fruit juice industry. In the present study, polygalacturonase was produced by Aspergillus awamori Nakazawa MTCC 6652 utilizing apple pomace and mosambi orange (Citrus sinensis var mosambi) peels as solid substrate whereas, α-amylase was produced from A. oryzae (IFO-30103) using wheat bran by solid state fe
Braz. J. Microbiol.. Publicado em: 2014
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16. Action of a pancreatin and an Aspergillus oryzae protease on whey proteins: correlation among the methods of analysis of the enzymatic hydrolysates
The objectives of this study were to hydrolyze whey proteins using a pancreatin and an Aspergillus oryzae protease; to evaluate the degree of hydrolysis (DH) and the peptide profile; and to establish the correlations among the analytical methods. Ten hydrolysates were prepared at different reaction times and the highest DH was obtained by the protein content
Braz. arch. biol. technol.. Publicado em: 2013-12
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17. Fungi and bacteria associated with post-harvest rot of ginger rhizomes in Espírito Santo, Brazil
The objective of this study was to identify fungi and bacteria associated with the post-harvest rot of ginger rhizomes (Zingiber officinale Roscoe) in the Serrana region of Espírito Santo, Brazil. Rhizomes with symptoms of rot were sampled in the packing-house and in the field soon after harvest. In the packing-house, we report positive pathogenicity tests
Trop. plant pathol.. Publicado em: 2013-06
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18. Avaliação do efeito da adição de fontes nitrogenadas e de sais minerais na fermentação em estado sólido para produção de fitase por Aspergillus / Evaluation of the effect of additing mineral and nitrogen sources in soil state fermentation for production of phytase using Aspergillus
Processos biotecnológicos para produção de enzimas apresentam acentuado crescimento devido à necessidade de maximização dos processos biológicos industriais e à contribuição para reduzir impactos ambientais. Entretanto, a utilização e purificação das enzimas envolve inúmeras variáveis e custo de produção relativamente alto. A fitase hidroli
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/04/2012
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19. AplicaÃÃo de proteases fÃngicas na obtenÃÃo de hidrolisado de soro de queijo coalho atomizado / Application fungal proteases to produce hydrolysate whey cheese curds atomized
Os volumes da produÃÃo de leite estÃo crescendo a uma taxa mÃdia de 2% ao ano em todo o mundo. Este aumento da quantidade de leite està sendo canalizado para a produÃÃo de queijo, caseÃna, caseinato e outros produtos lÃcteos, resultando no aumento do volume de soro de leite. Ele representa cerca de 85-95% do volume do leite e retÃm cerca de 55% de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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20. Influence of pectin, glucose, and pH on the production of endo- and exo-polygalacturonase by Aspergillus oryzae in liquid medium
Endo-and exo-polygalacturonase (PG) production by Aspergillus oryzae IPT 301 was evaluated in a batch bioreactor in media containing 0, 10, and 20 g.L-1 pectin and 0 to 30 g.L-1 glucose. For cultivations in which the pH was not controlled, the use of 20 g.L-1 pectin and 10 g.L-1 glucose resulted in superior enzyme activities compared to control media with 0
Braz. J. Chem. Eng.. Publicado em: 2012-12
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21. Caracterização físico-química e tecnológica da farinha de soja integral fermentada com Aspergillus oryzae
Neste trabalho, estudou-se o efeito das condições de fermentação da farinha de soja integral, utilizando-se o fungo Aspergillus oryzae, sobre as características físico-químicas e as propriedades tecnológicas da farinha de soja integral autoclavada fermentada. A farinha de soja integral autoclavada foi fermentada com o fungo Aspergillus oryzae CCT 435
Braz. J. Food Technol.. Publicado em: 23/10/2012
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22. Effect of ph and temperature on the activity of phytase products used in broiler nutrition
The activity of three commercial microbial phytase (Aspergillus oryzae, A. niger, and Saccharomyces cerevisae) products used in broiler nutrition was determined at different pH (2.0 to 9.0) and temperature (20 to 90°C) values. Enzymatic activity was determined according to the reaction of the phytase with its substrate (sodium phytate), in four replicates,
Rev. Bras. Cienc. Avic.. Publicado em: 2012-09
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23. The hydrolysis of agro-industrial residues by holocellulose-degrading enzymes
Holocellulose structures from agro-industrial residues rely on main and side chain attacking enzymes with different specificities for complete hydrolysis. Combinations of crude enzymatic extracts from different fungal species, including Aspergillus terreus, Aspergillus oryzae, Aspergillus niger and Trichoderma longibrachiatum, were applied to sugar cane baga
Brazilian Journal of Microbiology. Publicado em: 2012-06
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24. Media optimization for β-Fructofuranosidase production by Aspergillus oryzae
β-Fructofuranosidase production by Aspergillus oryzae IPT301 was maximized in shake flasks. Response Surface Methodology (RSM) involving Small Central Composite Design was adopted to evaluate the fructosyltransferase (FTase) activity by changing three medium component concentrations: sucrose, urea and yeast extract. The optimal set of conditions for maximum
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03