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xylanase production by the immobilized cells of Bacillus pumilus was higher by 40.5 and 132.6 % over the free cells respectively after 48 and 72 h of the incubation. Keywords: Bacillus pumilus, Cellulase free xylanase, Calcium alginate, Immobilization
Get PriceExtracellular cellulase free xylanase from Pseudomonas sp. XPB-6 was purified to homogeneity with 2.15 fold of pu-rity and 60.31% yield, respectively by ammonium sulfate precipitation and DEAE ion exchange chromatography. The
Get PriceA novel cellulase free alkaliphilic xylanase from alkali tolerant Penicillium citrinum: production, purification and characterization T. Dutta, R. Sengupta, R. Sahoo, S. Sinha Ray, A. Bhattacharjee and S. Ghosh Department of Biochemistry, University College of
Get PriceA novel thermostable cellulase free xylanase stable in broad range of pH from Streptomyces sp. CS428 Process Biochemistry, 2013 Pradeep G.C. Yoon Seok Choi Seung Cho Hyo Lee Chi Seong
Get PriceProduction of high level of cellulase-free and thermostable xylanase by a wild strain of Thermomyces lanuginosus Joseph Gomes, Isidore Gomes, W. Kreiner, H. Esterbauer, M. Sinner, Walter Steiner Institute of Biotechnology and Biochemical Engineering (6510)
Get PriceCellulase and xylanase production was optimal at the following conditions: pH 6 and 8, incubation temperature of 40 and 35 C, and agitation speed of 100 and 150 rpm, respectively. Under optimum conditions, 0.26 U/mL and 18.54 U/mL activities were attained at 60 and 48 h with specific productivity of 205 and 7417 U/g for cellulase and xylanase, respectively.
Get PriceCellulase-free xylanase Pseudomonas boreopolis G22 Biomass Bioflocculant Microalgae harvest ABSTRACT The major problem for industrial application of bioflocculants is its high production cost. Here, a novel bac-terium Pseudomonas boreopolis G22, which
Get Price2014/5/22Cellulase-free xylanase production by thermophilic Streptomyces thermovulgaris TISTR1948 was cultivated in a basal medium with rice straw as sole source of carbon and as an inducible substrate. Variable medium components were selected in accordance with the Plackett-Burman experimental design.
Get Price2015/6/10Xylanases have largely been obtained from filamentous fungi and bacteria; few studies have investigated the production of this enzyme by yeasts. The aim of this study was to isolate yeasts from different sources, such as vegetables, cereal grains, fruits, and agro-industrial waste and to obtain yeasts capable of producing celulase-free xylanase. Samples were enriched using yeast malt broth
Get PriceTY - JOUR T1 - Production of high level of cellulase-free xylanase by the thermophilic fungus Thermomyces lanuginosus AU - Gomes, Joseph AU - Purkarthofer, H. AU - Hayn, M. AU - Sinner, M. AU - Steiner, Walter PY - 1993 Y1 - 1993 U2 - 10.1007
Get Price2013/5/15[] used different preparations of commercial Xylanase P and crude xylanase from Thermomyces lanuginosus to evaluate the bleaching process of paper pulp. It was demonstrated that the use of enzymes could increase the pulp brightness (over 5 brightness points over the control) and reduce the amount of bleaching chemicals used (up to 30% for chlorine dioxide).
Get Price2015/6/10Xylanases have largely been obtained from filamentous fungi and bacteria; few studies have investigated the production of this enzyme by yeasts. The aim of this study was to isolate yeasts from different sources, such as vegetables, cereal grains, fruits, and agro-industrial waste and to obtain yeasts capable of producing celulase-free xylanase. Samples were
Get Pricecellulase-free xylanase producing fungi Boddireddy Sridevi1* and M. A. Singara Charya2 1Department of Microbiology, Chaitanya Degree and PG College, (Autonomous), Warangal-506 001, Andhra Pradesh, India. 2Department of Microbiology, Kakatiya In order
Get Price2013/8/13Cellulose-free, alkali and thermo-stable microbial xylanases are mostly ideal for biopulping and bleaching processes (Birijlall et al., 2011; Yeasmin et al., 2011; Peixoto-Nogueira et al., 2009). This paper shows an important comparing of the xylanase production by A. niger and A. flavus using agroindustrial residues as carbon sources and tested their suitability for
Get PricePoorma C.A. and Prema P., Production of cellulase free endoxylanase from novel alkalophilic thermotolerant Bacillus pumilus by solid state fermentation and its application in waste paper recycling, Biores.Technol., 98, 485-490 (2007)
Get Price2011/3/7Cellulase-free xylanase production by thermophilic Streptomyces thermovulgaris TISTR1948 was cultivated in a basal medium with rice straw as sole source of carbon and as an inducible substrate. Variable medium components were selected in accordance with the Plackett-Burman experimental design.
Get Price2018/7/12Again, mixing did not improve cellulase and xylanase production, obtaining xylanase peak at 90 h with a slightly lower value of 21 8 UA g −1 DM in comparison with the static fermentation. These results are in accordance with those reported by Deschamps et al. [ 34 ], where a reduction of cellulase activity was observed between static and mixed SSF, decreasing from 18 to 11 FPU per gram of
Get PriceEnzyme Microb Tech- Another property of this xylanase is to be cellulase-free, nol 1992;14:272– 6. being a good candidate to further test its applicability in [18] Viikari L, Kantelinen A, Buchert J, Puls J. Enzymatic accessibility of
Get PriceEndoxylanases from the thermophilic fungus, Thermomyces lanuginosus ATCC 44008 (cellulase free wild and mutant strains), were purified to homogeneity by anion-exchange and molecular-sieve chromatographic methods. The purified enzymes were monomers with molecular masses of 22 kDa (wild type) and 24 kDa (mutant), estimated by SDS-PAGE and gel filtration. As glycoproteins, the purified
Get Price2015/2/11Background Xylanases are important members of the hemicellulolytic enzyme system. Xylanase plays a vital role in the hydrolysis of major hemicellulosic component xylan and converts it into xylooligosaccharides and ultimately yields xylose. Cellulase-lacking or cellulase-poor xylanase with high temperature and pH stability has gained special attention, especially
Get Pricecellulase free xylanase. The enzyme secretion was enhanced when the medium was supplemented with 0.5% wheat bran xylan, peptone and Ca2+ salt. The peak in xylanase production was achieved within 48-60 hours at temperature 50 -55 C and at pH 7.0.The
Get PriceProduction of cellulase-free xylanase by Aspergillus flavus: Effect of polyols on the thermostability and its application on cellulose pulp biobleaching Patricia Oliveira da Silva1, Nelciele Cavalieri de Alencar Guimares1, Simone de Carvalho Peixoto-Nogueira221
Get PriceA novel thermostable cellulase free xylanase stable in broad range of pH from Streptomyces sp. CS428 Process Biochemistry, 2013 Pradeep G.C. Yoon Seok Choi
Get PriceCellulase-free xylanase by Streptomyces sp.P12-137 was obtained by cultivation on the wheat bran as the sole carbon source. The effect of carbon and nitrogen sources and a ratio of them on the cellulase-free xylanase production was investigated. The new
Get PriceExtracellular cellulase free xylanase from Pseudomonas sp. XPB-6 was purified to homogeneity with 2.15 fold of purity and 60.31% yield, respectively by ammonium sulfate precipitation and DEAE ion exchange chromatography. The protein was found to be a homotrimer consisting of three subunits of 41 kDa each and the native molecular weight of 123 kDa.
Get PriceCellulase-free xylanase production by thermophilic Streptomyces thermovulgaris TISTR1948 was cultivated in a basal medium with rice straw as sole source of carbon and as an inducible substrate. Variable medium components were selected in accordance with
Get PriceIndian Journal of Experimental Biology Vol. 53, June 2015, pp. 356-363 Production of a cellulase-free alkaline xylanase from Bacillus pumilus MTCC 5015 by submerged fermentation and its application in biobleaching Leya Thomas*, Raveendran Sindhu
Get Price2016/10/9Cellulase and xylanase are in high demand for application in several industrial processes, consequently necessitating the bioprospecting and manipulation of microbes for novel and greater enzyme productivity. This study reports on the optimal conditions for cellulase and xylanase production by a marine bacterial isolate from Nahoon beach sediment, via the
Get Priceisolated from mushroom compost, produced a cellulase-free extracellular endo-1, 4-β-xylanase (EC 3.2.1.8) at 35 C and pH 8.0. Apple pomace—an inexpensive and abundant source of carbon—supported maximal xylanase activity of 500.10 U/g dry bacterial
Get PriceCharacterization of a cellulase-free, neutral xylanase from Thermomyces lanuginosus CBS 288.54 and its biobleaching effect on wheat straw pulp [An article from: Bioresource Technology] by X.T. Li (Author), Z.Q. Jiang (Author), L.T. Li (Author), S.Q. Yang (Author), W.Y Feng (Author) 2 more Format: Digital
Get PriceThe lipolytic activity of Thermomyces lanuginosus strains isolated from different natural sources, International Biodeterioration Biodegradation, 55, 149-152 (2005). [15] Jatinder K., Chadha B.S., Saini H.S.: Optimization of culture conditions for production of cellulasesand xylanases by Scytalidium thermophilum using response surface methodology, World Journal of Microbiology and
Get Price2018/12/12Conclusion: Cellulase free xylanase production from the immobilized Bacillus pumilus IMAU80221 was optimized. The xylanase production by the immobilized cells of Bacillus pumilus was higher by 40.5 and 132.6 % over the free cells respectively after 48 and 72 h of the incubation.
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