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An extracellular xylanase from halophilic Streptomonospora sp. YIM 90494 was purified to homogeneity from a fermentation broth by ammonium sulphate precipitation, gel filtration chromatography and ion exchange chromatography. The purified xylanase appeared as a single protein band on SDS-PAGE with a molecular mass of approximately 50 kDa. The xylanase had maximum activity at pH 7.5 and 55 °C. The...
Extreme environments, primeval forest, sea sediments and plants in China yielded members of a new suborder, Jiangellineae, a new family Sinobacteraceae, and 23 new genera of actinomycetes and other bacteria. Three suggestions were made for further discoveries of new actinomycetes. First, natural habitats such as old growth forests, and extreme environments, should be given sampling priority; second,...
The diversity and community structures of actinobacteria in saline sediments collected from Yunnan and Xinjiang Provinces, China, were investigated with cultivation and 16S rRNA gene analysis. A total of 163 actinobacterial isolates were obtained, and they were affiliated with the order Actinomycetales (distributed into five suborders: Streptosporangineae, Micrococcineae, Streptomycineae, Pseudonocardineae...
Knowledge management performance evaluation is an important approach for organization to acquaint and understand its knowledge management performance level of itself. The paper analyzes knowledge management performance evaluation research actuality both in home and abroad based on relative literature, considering fuzzy index, and puts forward an enterprise knowledge management performance evaluation...
For the problem of supply-chain supplier selection based on unknown index weight and interval number for index attribute, first, this paper constructs the index system for supply- chain supplier selection based on the concerned literatures; Then, it transfers interval number decision-making matrix into leave degree matrix and gets the objective weight of interval decision-making matrix through using...
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