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Screening of Microorganisms Secreted High Efficient Enzymes and Properties of Enzymatic Deinking for Old Newsprint(V) - Characteristics of Cellulase and Xylanase from Bacillus sp. -  

Park, Seong-Cheol (Institute of Agricultural Science and Technology, Chonbuk National University)
Lee, Yang-Soo (Institute of Agricultural Science and Technology, Chonbuk National University)
Jeong, In-Soo (Department of Wood Science and Technology, Iksan National College)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.37, no.3, 2005 , pp. 9-16 More about this Journal
Abstract
This study was carried out to investigate the characteristics of extracellular cellulase and xylanase from 4 selected different species, such as enzyme activity and stability by pH, temperature and metal ions, for application into enzymatic deinking system. The optimal temperature and pH for enzyme activity of Bacillus pumilus I, B. subtilis I, B. pumilus II and B. subtilis II were mainly $40{\sim}60^{\circ}C$ and pH $6.0{\sim}7.0$, respectively. Certain metal ions, calcium and cobalt, elevated enzyme activity, even though there were different results of enzyme activities based on various metal ions in 4 different species. With these results we suggest that enzymatic deinking system should be proceed at $50^{\circ}C$ with neutral pH condition.
Keywords
enzymatic deinking system; enzyme activity; cellulase; xylanase;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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