ISOLATION, PURIFICATION AND CHARACTERIZATION OF ALKALI AND THERMO STABLE XYLANASE FROM BACILLUS SP. KS09
Journal Title: International Journal of Research and Development in Pharmacy & Life Sciences (IJRDPL) - Year 2012, Vol 1, Issue 2
Abstract
Nine bacterial strains were isolated using xylan rich media. The bacterial strain KS09 was selected on the basis of qualitative and quantitative test. It was identified as Bacillus sp. via physiological, morphological and biochemical characterization. The xylanase was purified to homogeneity from crude extract of Bacillus sp. KS09 using ammonium sulphate fractioning and CM-Sephadex C-50. The final purification fold was 10.20 with a recovery of 36.18%. The enzyme was optimally active at 50°C, pH 7.0 and stable over a broad pH range of 6.0-11.0. The residual activity at 6.0-11.0 pH was 100% even upto 3 h of incubation. The enzyme showed 75, 70 and 60% thermal stability at 50, 55 and 60°C, respectively after 1 h of incubation. The kinetic parameters (Km 22.59 mM; Vmax 76.93 IU/mL) were estimated using Lineweaver-Burk plot for purified xylanase. The xylanase activity was inhibited by all the metal ions applied. The characteristic studies revealed that xylanase including its cellulase free nature, broad pH stability and temperature stability are particularly suited its industrial applications.
Authors and Affiliations
Anuradha Mittal| Department of Biochemistry, Kurukshetra University, Kurukshetra, India-136119, Sushil Nagar| Department of Biochemistry, Kurukshetra University, Kurukshetra, India-136119, Kirti| Department of Biochemistry, Kurukshetra University, Kurukshetra, India-136119, Simran Jot Kaur| Department of Biochemistry, Kurukshetra University, Kurukshetra, India-136119, Vijay Kumar Gupta| Department of Biochemistry, Kurukshetra University, Kurukshetra, India-136119
Keywords
Related Articles
- EP ID EP15980
- DOI -
- Views 478
- Downloads 27
AN OVERVIEW ON MICROWAVE MEDIATED SYNTHESIS
Microwave-assisted organic synthesis is an enabling technology for accelerating drug discovery and development processes. Microwave organic synthesis opens up new opportunities to the synthetic chemist in the form of ne...
Evaluation of anti-obesity activity of Centratherum anthelminticum in obese rats
The effect of Ethanolic extracts of Centratherum anthelminticum on adiposity index serum levels of liver enzyme in obese rats investigated. twenty mature (180-210gm body weight) Swiss albino rats either sex randomly di...
SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NEWER BIPHENYL IMIDAZO [2,1-b] [1,3,4]THIADIAZOLE DERIVATIVES
In the present study, we have reported the synthesis of some novel heterocyclic derivatives comprising imidazole and 1,3,4-thiadiazole containing moiety. Imidazothiadiazoles are of interest because of their diverse biol...
A review on Mucoadhesive Buccal Patches
The oral cavity is an attractive site for the delivery of drugs. Through this route it is possible to realize mucosal (local effect) and transmucosal (systemic effect) drug administration. In the first case, the aim is...
Evaluation of Preliminary Phytochemical and Pharmacognostic Studies on the Bark of Randia spinosa Thund
The bark of Randia spinosa (Madanphal) is reported to have great medicinal value. Pharmacognostic evaluation including examinations of morphological and microscopic characters, ash value, powder analysis, and extractive...