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	Provedor de dados BABT (2) BJM (2) Autor Blandino,Ana (1) Caro,Ildefonso (1) Córdova,Jesús (1) Díaz,Ana B. (1) Gomes,Eleni (1) Goyal,Meenakshi (1) Gupta,Uma (1) Kalra,K.L. (1) Kar,Rita (1) Loera,Octavio (1) Ory,Ignacio de (1) Sareen,V.K. (1) Soni,G. (1) Umsza-Guez,Marcelo A. (1) Mais... Palavra-chave Xylanase production (4) Submerged fermentation (2) Carbon repression (1) Corn cob (1) Hydrolytic enzymes (1) Lignocellulosics (1) Mutants (1) Parasexual cross (1) Plate-type bioreactor (1) Solid state fermentation (SSF) (1) Solid- state (1) Thermo-tolerant Bacillus species (1) Tomato pomace (1) Trichoderma viride (1) Wheat bran (1) Xylose induction and repression (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2011 (1) 2009 (1) 2008 (1) 2003 (1) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Xylanase production by a thermo-tolerant Bacillus species under solid-state and submerged fermentation BABT Gupta,Uma; Kar,Rita. Effects of xylose on xylanase production by a thermophilic Bacillus sp showed diverse patterns on corn cob (CC) and wheat bran (WB) as sole carbon sources in solid- state fermentation (SSF) and submerged fermentation (SmF). Supplementation of these media with either mineral salt solution (MSS) or yeast extract peptone (YEP) also exerted variable effects. While under SSF, xylose stimulated xylanase synthesis by 44.01%, on wheat bran supplemented with MSS, it decreased the enzyme activity by 12.89% with YEP supplementation. In SmF, however the enzyme synthesis was stimulated by xylose on supplementation with both MSS and YEP by 41.38% and 27.47%, respectively. On corn cob under SSF, xylose repression was significant both with MSS (26.92%) and YEP (23.90%)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Xylanase production; Thermo-tolerant Bacillus species; Xylose induction and repression; Corn cob; Wheat bran; Solid- state; Submerged fermentation. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600007 Improvement of xylanase production by a parasexual cross between Aspergillus niger strains BABT Loera,Octavio; Córdova,Jesús. A diploid strain (D4) isolated via parasexual recombination between two Aspergillus niger xylanase overproducing mutants was characterised in terms of enzyme production and catabolite repression by glucose. This strain increased xylanase production (607 nkat/ml), which was nearly 100% higher than titers achieved by the wild type strain (305 nkat/ml) and 28% higher than the best mutant used to induce parasexual cycle. Diploid D4 was also less sensitive to carbon catabolite repression by glucose, since xylanolytic activity was detected under conditions normally repressing production by the wild type strain. No decrease in maximal xylanase levels was observed in the presence of glucose for diploid D4. Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbon repression; Xylanase production; Mutants; Parasexual cross. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200006 Xylanase production by Aspergillus awamori under solid state fermentation conditions on tomato pomace BJM Umsza-Guez,Marcelo A.; Díaz,Ana B.; Ory,Ignacio de; Blandino,Ana; Gomes,Eleni; Caro,Ildefonso. In this work, tomato pomace, a waste abundantly available in the Mediterranean and other temperate climates agro-food industries, has been used as raw material for the production of some hydrolytic enzymes, including xylanase, exo-polygalacturonase (exo-PG), cellulase (CMCase) and α-amylase. The principal step of the process is the solid state fermentation (SSF) of this residue by Aspergillus awamori. In several laboratory experiments, maximum xylanase and exo-PG activities were measured during the first days of culture, reaching values around 100 and 80 IU/gds (international units of enzyme activity per gram of dried solid), respectively. For CMCase and α-amylase production remained almost constant along fermentation, with average values of 19 and 21.5... Tipo: Info:eu-repo/semantics/article Palavras-chave: Solid state fermentation (SSF); Tomato pomace; Hydrolytic enzymes; Plate-type bioreactor; Xylanase production. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400046 Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride BJM Goyal,Meenakshi; Kalra,K.L.; Sareen,V.K.; Soni,G.. In the present study, cultural and nutritional conditions for enhanced production of xylanase by a local soil isolate of Trichoderma viride, using various lignocellulosic substrates in submerged culture fermentation have been optimized. Of the lignocellulosics used, maize straw was the best inducer followed by jowar straw for xylanase production. The highest activity achieved was between 14 to 17 days of fermentation. A continuous increase in xylanase production was observed with increasing level of lignocellulosics in the medium and highest activity was observed with maize straw at 5% level. Xylanase production with higher levels of lignocellulosics (3 to 5%) of maize, jowar and barseem was found to be higher as compared to that with commercial xylan as... Tipo: Info:eu-repo/semantics/article Palavras-chave: Xylanase production; Trichoderma viride; Lignocellulosics; Submerged fermentation. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300025 Registros recuperados: 4 Primeira ... 1 ... Última

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