Purification and characterization of produced cellulase enzyme by irradiated achromobacter spanius
Joint Authors
Abd al-Aziz, Usamah Abd al-Basit
al-Hajar, Ula E. A.
Musa, Abir M.
Source
Arab Journal of Nuclear Sciences and Applications
Issue
Vol. 52, Issue 4 (31 Oct. 2019), pp.64-72, 9 p.
Publisher
The Egyptian Society of Nuclear Science and Applications
Publication Date
2019-10-31
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Topics
Abstract EN
Achromobacter spanius was endophytic cellulase producing bacteria.
they were irradiated by gamma rays at doses from 0.5 – 5 kGy.
irradiated Achromobacter spanius increase extracellular cellulase activity in comparison with non-irradiated strain.
irradiated strain at dose 3.5 kGy was identified as higher cellulase enzyme activity than those of other doses.
the cellulase enzyme was purified by applying sephadex G-100 gel chromatography technique.
the highest activity of cellulase was obtained at enzyme volume and incubation period of 0.2 ml and 30 minutes respectively.
The optimum pH value was 7 and the optimum activity with temperature was 35 oC.
the enzyme showed the highest activity when carboxmethyl cellulose (CMC) used as substrate on reaction mixture.
according to thermal stability, the purified cellulase has high activity after 5 minutes when purified cellulase was incubated at 60 oc.
the purified cellulase, with a molecular weight (M.W.) of 32.5 kDa.
American Psychological Association (APA)
Musa, Abir M.& Abd al-Aziz, Usamah Abd al-Basit& al-Hajar, Ula E. A.. 2019. Purification and characterization of produced cellulase enzyme by irradiated achromobacter spanius. Arab Journal of Nuclear Sciences and Applications،Vol. 52, no. 4, pp.64-72.
https://search.emarefa.net/detail/BIM-903411
Modern Language Association (MLA)
Musa, Abir M.…[et al.]. Purification and characterization of produced cellulase enzyme by irradiated achromobacter spanius. Arab Journal of Nuclear Sciences and Applications Vol. 52, no. 4 (Oct. 2019), pp.64-72.
https://search.emarefa.net/detail/BIM-903411
American Medical Association (AMA)
Musa, Abir M.& Abd al-Aziz, Usamah Abd al-Basit& al-Hajar, Ula E. A.. Purification and characterization of produced cellulase enzyme by irradiated achromobacter spanius. Arab Journal of Nuclear Sciences and Applications. 2019. Vol. 52, no. 4, pp.64-72.
https://search.emarefa.net/detail/BIM-903411
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 70-72
Record ID
BIM-903411