ISSN 2415-1297 (Online)   ISSN 2415-1300 (Print)
 
             
 
Volume : 27 Issue : 3 Year : 2019
 
Cellulase Production from Actinomycetes Isolated from Iraqi Soils: II. Cell Growth and Cellulase Activity of Streptomyces Sp. Strain AT7 At Different Temperatures [Med J Islamic World Acad Sci]
Med J Islamic World Acad Sci. 1989; 2(3): 185-188

Cellulase Production from Actinomycetes Isolated from Iraqi Soils: II. Cell Growth and Cellulase Activity of Streptomyces Sp. Strain AT7 At Different Temperatures

Amira M. Al-Tai, Shatha Abdul-Razzak, Siham S. Al-Attiyah, Basima A. Abdul-Nour
From the Genetic Engineering and Biotechnology Research Centre, Scientific Research Council, P.O. Box 2250, Jadriyah, Baghdad, Iraq.

Streptomyces sp. Strain AT7 releases both carboxymethylcellulose (Cx) and Avicelase (C1) enzymes during growth in liquid medium with maximal activities, measured as mg/ml/h, of 6.0 and 13.6 obtained at 36C for 2 and 9 day incubation periods respectively. Cx kept its activity at 42C till the end of the incubation period (18 days) while C1 lost almost 50% of its activity at the same time. Maximum yields of cell growth (protein) obtained at 28, 36 and 42C; were 0.23, 0.22 and 0.25 g/ml respectively.

Keywords: Streptomycetes, Cellulase Activity, Carboxymethylcellulase, Avicelase.


Amira M. Al-Tai, Shatha Abdul-Razzak, Siham S. Al-Attiyah, Basima A. Abdul-Nour. Cellulase Production from Actinomycetes Isolated from Iraqi Soils: II. Cell Growth and Cellulase Activity of Streptomyces Sp. Strain AT7 At Different Temperatures. Med J Islamic World Acad Sci. 1989; 2(3): 185-188

Corresponding Author: Amira M. Al-Tai, Iraq


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