نتایج جستجو برای: cellulase free xylanase

تعداد نتایج: 520099  

2010
Sarah Moraïs Yoav Barak Jonathan Caspi Yitzhak Hadar Raphael Lamed Yuval Shoham David B. Wilson Edward A. Bayer

Designer cellulosomes are precision-engineered multienzyme complexes in which the molecular architecture and enzyme content are exquisitely controlled. This system was used to examine enzyme cooperation for improved synergy among Thermobifida fusca glycoside hydrolases. Two T. fusca cellulases, Cel48A exoglucanase and Cel5A endoglucanase, and two T. fusca xylanases, endoxylanases Xyn10B and Xyn...

Journal: :Biotechnology for Biofuels 2021

Abstract Background Filamentous fungus Trichoderma reesei has been widely used as a workhorse for cellulase and xylanase productions. Xylanase reported the crucial accessory enzyme in degradation of lignocellulose higher accessibility cellulase. In addition, efficient hydrolysis xylan needs co-work multiple xylanolytic enzymes, which rise an increasing demand high yield biomass degradation. Res...

2015
Abhishek Walia Preeti Mehta Shiwani Guleria Chand Karan Shirkot

The effects of yeast extract (X1), NH4NO3 (X2), peptone (X3), urea (X4), CMC (X5), Tween 20 (X6), MgSO4 (X7), and CaCO3 (X8) on production of xylanase from Cellulosimicrobium cellulans CKMX1 were optimized by statistical analysis using response surface methodology (RSM). The RSM was used to optimize xylanase production by implementing the Central composite design. Statistical analysis of the re...

Journal: :Bioresource technology 2011
Matthew Falls Jian Shi Mirvat A Ebrik Tim Redmond Bin Yang Charles E Wyman Rebecca Garlock Venkatesh Balan Bruce E Dale V Ramesh Pallapolu Y Y Lee Youngmi Kim Nathan S Mosier Michael R Ladisch Bonnie Hames Steve Thomas Bryon S Donohoe Todd B Vinzant Richard T Elander Ryan E Warner Rocio Sierra-Ramirez Mark T Holtzapple

This work studied the benefits of adding different enzyme cocktails (cellulase, xylanase, β-glucosidase) to pretreated switchgrass. Pretreatment methods included ammonia fiber expansion (AFEX), dilute-acid (DA), liquid hot water (LHW), lime, lime+ball-milling, soaking in aqueous ammonia (SAA), and sulfur dioxide (SO(2)). The compositions of the pretreated materials were analyzed and showed a st...

Journal: :World journal of microbiology & biotechnology 2015
Loredana Marcolongo Francesco La Cara Alessandra Morana Anna Di Salle Giovanni Del Monaco Susana M Paixão Luis Alves Elena Ionata

An extracellular thermo-alkali-stable and cellulase-free xylanase from Geobacillus thermodenitrificans A333 was purified to homogeneity by ion exchange and size exclusion chromatography. Its molecular mass was 44 kDa as estimated in native and denaturing conditions by gel filtration and SDS-PAGE analysis, respectively. The xylanase (GtXyn) exhibited maximum activity at 70 °C and pH 7.5. It was ...

2013
André Oliveira de Souza Lima Alencar Cabral Fernando Dini Andreote Angélica Cavalett Marcos Luiz Pessatti Francisco Dini-Andreote Marcus Adonai Castro da Silva

Bacillus stratosphericus LAMA 585 was isolated from the Mid-Atlantic-Ridge seafloor (5,500-m depth). This bacterium presents the capacity for cellulase, xylanase, and lipase production when growing aerobically in marine-broth media. Genes involved in the tolerance of oligotrophic and extreme conditions and prospection of biotechnological products were annotated in the draft genome (3.7 Mb).

2015
Antonella Amore Binod Parameswaran Ramesh Kumar Leila Birolo Roberto Vinciguerra Loredana Marcolongo Elena Ionata Francesco La Cara Ashok Pandey Vincenza Faraco

BACKGROUND Cellulases and xylanases are the key enzymes involved in the conversion of lignocelluloses into fermentable sugars. Western Ghat region (India) has been recognized as an active hot spot for the isolation of new microorganisms. The aim of this work was to isolate new microorganisms producing cellulases and xylanases to be applied in brewer's spent grain saccharification. RESULTS 93 ...

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