Production of novel halo-alkali-thermo-stable xylanase by a newly isolated moderately halophilic and alkali-tolerant Gracilibacillus sp. TSCPVG

Poosarla, Venkata Giridhar; Chandra, T.S.

doi:10.1016/j.procbio.2010.07.012

Cited by 65 publications

(37 citation statements)

References 41 publications

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“…The optimal initial pH of the culture medium for HADH production by Nnm. gari BCC 24369 was in the range of 7.0-7.5 which was similar to the optimum pH of media reported for the production of other halophilic enzymes (Giridhar and Chandra, 2010;Manikandan et al, 2009). A wide temperature range of 28 to 40°C was found to be optimum for HADH production by Nnm.…”

Section: Effect Of Initial Ph and Incubation Temperature On Hadh Prodsupporting

confidence: 79%

Enhanced production of histamine dehydrogenase by Natrinema gari BCC 24369 in a non-sterile condition

Chaikaew

Powtongsook

Boonpayung

et al. 2015

J. Gen. Appl. Microbiol.

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Section: Effect Of Initial Ph and Incubation Temperature On Hadh Prodsupporting

confidence: 79%

Enhanced production of histamine dehydrogenase by Natrinema gari BCC 24369 in a non-sterile condition

Chaikaew

Powtongsook

Boonpayung

et al. 2015

J. Gen. Appl. Microbiol.

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“…The highest growth and enzyme activity of 3.5 U/ml was obtained in 3.5 % NaCl. It was the fi rst report of extremely halo-alkali-thermo-stable xylanase (Giridhar and Chandra 2010 ). A novel mannanase gene ( A021 ) was isolated from marine bacterium Pantoea agglomerans and was cloned in E. coli .…”

Section: Xylanasesmentioning

confidence: 99%

Halophilic Bacteria: Potentials and Applications in Biotechnology

Mohammadipanah

Hamedi

Dehhaghi

2015

Sustainable Development and Biodiversity

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Halophilic bacteria are categorized based on their requirements to salt. They apply some strategies in adaptation to the high saline environment. Their low nutritional requirements and resistance to high concentrations of salt, introduce as potent agents in wide range of biotechnological applications. Halophilic bacteria are very divergent and more than 150 species introduce in 70 genera of halophilic bacteria are reported. Use of resistant microorganisms and their metabolites under harsh industrially conditions is a strikingly important subject. Various halophilic enzymes in different enzymatically processes, compatible solutes as macromolecule stabilizers, biopolymers, biofertilizers and pharmaceutically active molecules from halophilic bacteria are among the important applications of these group. Additionally, they have many potential in bioremediation of various organic and inorganic pollutants from environment. This chapter covers the different aspects of potential applications of halophilic bacteria in biotechnology. Keywords IntroductionMicrobial life exists in hypersaline habitat refl ects the adaption of microorganisms to high concentration of salts. Halophilic and halotolerant organisms are found in all three domains of life: Archaea , Bacteria , and Eukarya . According to the requirement

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“…On the other hand, lowest and maximum xylanase production by Gracilibacillus sp. TSCPVG was attained at logarithmic and stationary growth phase respectively (Giridhar and Chandra, 2010).…”

Section: Kinetics Of Growth and Time Course For Xylanase And Cellulasmentioning

confidence: 99%

“…TSCPVG (Giridhar and Chandra, 2010). Nagar et al (2012) reported wheat bran as the best inducer of xylanase production by Bacillus pumilus SV-205.…”

Section: Effect Of Carbon Source Inducers For Holocellulase Productionmentioning

confidence: 99%

Optimization of Process Conditions for the Production of Holocellulase by a Bacillus Species Isolated from Nahoon Beach Sediments

Fatokun¹,

Nwodo²,

Olaniran³

et al. 2017

American Journal of Biochemistry and Biotechnology

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Production of holocellulase by a newly isolated marine Bacillus species via submerged fermentation technique at varying cultivation conditions was investigated. Enzyme production was optimized by altering one variable per time. Moreover effect of lignocellulosic saccharides in inducing cellulase and xylanase production was also investigated. The 16S ribosomal Deoxyribonucleic Acid (16S rDNA) gene sequence analysis exhibited 98% sequence similarity of the isolate with other Bacillus species in the gene bank and was deposited with the accession number KX524510. Optimal xylanase and cellulase production was attained at pH 7, temperature 30°C and agitation speed of 50 and 150 rpm. Furthermore, maximum xylanase and cellulase production were both achieved at 60 h corresponding to the late stationary growth stage, with activity of 16.6 and 0.061 U mL −1 respectively. Xylanase production was maximally induced by beechwood xylan, xylose and arabinose with activities of 13.59, 8.78 and 1.90 (U mL −1 ) respectively; while cellulase production was induced by carboxymethyl cellulose only and no cellulase activity was detected in the culture supernatant of the other carbon sources tested. Optimization increased cellulase and xylanase yields being 0.006-0.061 and 0.23-16.6 (U mL −1 ) from unoptimized to optimized respectively. The results of the study suggest the bacterial strain to be a proficient producer of cellulase and xylanase with potentials in biotechnological application.

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Production of novel halo-alkali-thermo-stable xylanase by a newly isolated moderately halophilic and alkali-tolerant Gracilibacillus sp. TSCPVG

Cited by 65 publications

References 41 publications

Enhanced production of histamine dehydrogenase by <i>Natrinema gari</i> BCC 24369 in a non-sterile condition

Enhanced production of histamine dehydrogenase by <i>Natrinema gari</i> BCC 24369 in a non-sterile condition

Halophilic Bacteria: Potentials and Applications in Biotechnology

Optimization of Process Conditions for the Production of Holocellulase by a <i>Bacillus</i> Species Isolated from Nahoon Beach Sediments

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