Production and Location of Xylanolytic Enzymes in Alkaliphilic Bacillus sp. K-1
2006
Lee, Y.S. (University of Pennsylvania School of Medicine, Philadelphia, PA, USA) | Ratanakhanokchai, Khanok (King Mongkut's University of Technology Thonburi, Bangkok, Thailand) | Piyatheerawong, Weela (King Mongkut's University of Technology Thonburi, Bangkok, Thailand) | Kyu, Khin Lay (King Mongkut's University of Technology Thonburi, Bangkok, Thailand) | Rho, M.S. (Konkuk University, Chungju, Republic of Korea) | Kim, Y.S. (Hanyang University, Seoul, Republic of Korea) | Om, A.S. (Hanyang University, Seoul, Republic of Korea) | Lee, J.W. (Hanyang University, Seoul, Republic of Korea) | Jhee, O.H. (Hanyang University, Seoul, Republic of Korea) | Chon, G.H. (Wonkwang University, Iksan, Republic of Korea) | Park, H. (Wonkwang University, Iksan, Republic of Korea) | Kang, J.S. (Hanyang University, Seoul, Republic of Korea), E-mail: [email protected]
The production and location of xylanolytic enzymes in alkaliphilic Bacillus sp. K-1, isolated from the wastewater treatment plant of the pulp and paper industry, was studied. When grown in alkaline xylan medium, the bacteria produced xylanolytic enzymes such as xylanase, β-xylosidase, arabinofuranosidase, and acetyl esterase. Two types of xylanases (23 and 45 kDa) were found to be extracellular, but another type of xylanase (35 and/or 40 kDa) was detected as pellet-bound that was eluted with 2% triethylamine from the residual xylan of the culture. The xylanases were different in their molecular weight and xylan-binding ability.
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