http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cellulase-Free Thermostable Alkaline Xylanase from Thermophilic and Alkalophilic Bacillus sp. JB-99
JOHNVESLY, B.,VIRUPAKSHI, S.,PATIL, G. N.,RAMALINGAM,NAIK, G. R. 한국미생물 · 생명공학회 2002 Journal of microbiology and biotechnology Vol.12 No.1
The characterization of a partially purified, cellulase-free, thermostable alkaline xylanase from thermoalkalophilic Bacillus sp. JB-99 was investigated. The xylanase production was the highest when birchwood xylan was added to a medium containing finely powdered rice bran, showing 4,826 IU ml^-1 of activity for 15 h of incubation. The partially purified xylanase exhibited an optimum temperature and pH at 70℃ and 10, respectively. The enzyme was stable at pH 5-11 at 50℃. The xylanase activity was strongly inhibited by Hg^2+, while dithiothreitol, cysteine, and β-mercaptoethanol enhanced the activity.