1Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 137-701, Republic of Korea,
2Department of Food Science and Technology, College of Engineering, Ewha Womans University, Seoul 120-750, Republic of Korea,
3National Institute of Animal Science, Rural Development Administration, Suwon 441-706, Republic of Korea,
4DK EcoV Environmental Microbiology Lab, Biotechnology Business Incubating Center, Dankook University, Chungnam 330-714, Republic of Korea
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Corresponding author:
Soon-Young Paik , Tel: +82-2-2258-7342,