Nov 21 2018The enzyme production was further enhanced by optimization of various parameters under submerged fermentation conditions The optimized conditions of 2% (w/v) substrate concentration 40C temperature pH 6 0 an incubation period of 6 days and supplementation of the medium with 0 5% ammonium sulfate resulted in maximum 0 9900 012 U/ml Cellulase is any of several enzymes produced chiefly by fungi bacteria and protozoans that catalyze cellulolysis the decomposition of cellulose and of some related polysaccharides The name is also used for any naturally occurring mixture or complex of various such enzymes that act serially or synergistically to decompose cellulosic material


"Enhanced enzymatic conversion " BioResources 4(4) 1586-1599 1587 waste residue rich in cellulose is discarded or furnace-burned in many cases However this valuable cellulosic residue should be utilized in an economical and environmentally friendly way (Mosier et al 2005) In the process of xylo-oligosaccharides production

Mar 01 2019The production of endoglucanase increased from 125 mg/l in a shake flask to 5 g/l in fed-batch fermentation a remarkable 40-fold increase in production level showing that optimization at all steps of fermentation helped in increasing the overall production of the enzyme In particular catabolite repression was overcome by maintaining the

Aug 24 2020Plant virus-based expression systems are an alternative expression platform for the production of clinically and industrially useful recombinant proteins Nonetheless due to a lack of viral vector with the commercial potentials it is urgent to design and develop new versatile and efficient plant virus vectors The genome of Tomato bushy stunt virus (TBSV) offers an attractive alternative

canase production was studied by incubating culture in production medium at different initial pH (4 0-8 5) under shaking condition at 28 oC The culture broth was also subjected to incubate at different temperature (20 25 30 and 37 oC) to study on the effect of incubation tempera-ture for endoglucanase synthesis The cell-fee culture su-

CiteSeerX - Document Details (Isaac Councill Lee Giles Pradeep Teregowda): Objective: The objective was to optimize the fermentation media components and condi-tions to improve the production yield of endoglucanase by filamentous fungi isolated from garden soil Methods: Cellulolytic fungi were screened from garden soil and identified as Fusarium sp and Aspergillus sp by using conidial

Siraprapa Saraihom

- Enzyme production and enzyme activity assays - Protein precipitation protein purification and biochemical characterization techniques - SDS-PAGE and zymographic analysis - Bacterial chromosomal DNA isolation and purification PCR amplification DNA sequence analysis - Draft genome sequence analysis and genome comparison

Oct 12 2014A GH5 hyperthermostable endoglucanase from the archaeon Pyrococcus horikoshii (Ph-GH5) and a commercial endoglucanase FR were used to treat bleached eucalyptus pulp (BEP) fibers to produce cellulose nanofibrils (CNFs) through subsequent microfluidization Enzymatic treatments facilitated CNF production due to the reduced degree of polymerization (DP) of the fibers

A comparison between endoglucanase production and the cumulative evolution of CO 2 during cultivation of A niger is shown in Figure 3 The conditions used were an inlet air relative humidity of 70% an air flow rate of 24 mL/min and an initial substrate moisture content of 84% CO 2 production correlated well with endoglucanase production ()

In fungi most metabolic processes are subject to regulation by light Trichoderma reesei is adapted to degradation of plant cell walls and regulates production of the required enzymes in a manner dependent on the nutrient source and the light status Here we investigated the interrelated relevance of two regulation levels of the transcriptome of T reesei : light regulation and carbon source

Chuang Xue Chi Cheng in Advances in Bioenergy 2019 4 1 1 Direct utilization CBP is the only process that does not require a separate enzyme production process In SHF and SSF processes at least three different kinds of enzymes required (endoglucanase exoglucanase and β-glucosidase) to release sugars from cellulose and hemicellulose (Salehi Jouzani and Taherzadeh 2015)

Plants wounded by insects can increase production of ROS resulting in oxidative damage to the herbivore midgut (Bi and Felton 1995) ROS have been shown to be toxic to larvae of several species of lepidopteran and their expressions must be carefully controlled (Ahmad et al 1987 Ahmad and Pardini 1990 Duffey and Stout 1996)

The banana is a typical climacteric fruit that undergoes ethylene dependent ripening During fruit ripening ethylene production triggers a developmental cascade that results in a series of physiological and biochemical changes The fruit transcriptomes of untransformated wild-type (WT) and RNAi transgenic banana plants for Mh-ACO1 and Mh-ACO2 have been previously sequenced and analyzed and

The visual system comprises the sensory organ (the eye) and the part of the central nervous system which gives organisms the ability to process visual detail as sight as well as enabling the formation of several non-image photo response functions It detects and interprets information from visible light (visible to that species) to build a representation of the surrounding environment

Arecanut husk: A potential feedstock for enhanced

Aug 01 2020The endoglucanase production from arecanut husk medium was enhanced by using statistical methods In contrast to unoptimized arecanut husk medium more than double fold enhancement in activity was observed in the optimized medium containing 1% arecanut husk 2 05% of inoculum 8 38 g/l yeast extract and 0 88 g/l Na 2 HPO 4

Cellulases from glycoside hydrolase family 5 (GH5) are key endoglucanase enzymes in the degradation of diverse polysaccharide substrates and are used in industrial enzyme cocktails to break down biomass The GH5 family shares a canonical (βα)8-barrel structure where each (βα) module is essential for the enzyme's stability and activity

Translate the absorbance of the sample tube (corrected if necessary by subtraction of the enzyme blank) into glucose production during the reaction using a glucose standard curve (see below) Spectro Zero 0 5 ml substrate solution 30 mm soc 3 0 ml DNS 0 5 ml

Highest endoglucanase activity was with Sigmacell as carbon source and corn steep liquor as nitrogen source Wheat bran enhanced the production of endoglucanase and β-glucosidase The enzymes in the crude supernatants were stable up to 50C and between pH 4 4 and 5 6 for 48 h

Direct ethanol production from cellulosic materials using a diploid strain of Saccharomyces cerevisiae with optimized cellulase expression Ryosuke Yamada1 Naho Taniguchi1 Tsutomu Tanaka2 Chiaki Ogino1 Hideki Fukuda2 and Akihiko Kondo1*

Production of minicellulosomes for the enhanced hydrolysis of cellulosic substrates by recombinant Corynebacterium glutamicum The chimeric endoglucanase E consists of the endoglucanase E catalytic backbone of Clostridium thermocellum fused with the endoglucanase B dockerin domain of C cellulovorans The resulting strain degraded cellulose

production of the phage library and 4) biopanning of the library using an immobilized target protein to identify peptides that bind the target 3 1 DNA Amplification and Fragmentation To generate a randomly fragmented protein phage display library the gene encoding the protein of interest is PCR amplified and fragmented by nebulization

Microbial Technologies in Advanced Biofuels Production Patrick C Hallenbeck Editor Microbial Technologies in Advanced Biofuels Production Editor Patrick C Hallenbeck Dpartement de microbiologie et immunologie Universit de Montral CP 6128 Succursale Centre-ville Montral Qubec H3C 3J7 Canada [email protected] ISBN 978-1-4614-1207-6 e-ISBN 978-1-4614-1208-3 DOI