芽孢杆菌脱氮作用的研究

对废水处理生物膜中的优势菌种芽孢杆菌(Bacillus)经纯化和驯化培养，对其脱氮性能进行了单纯性脱氮试验研究，并对其生长周期进行了分析。     

Production of lipids from a thermoacidophilic bacillus strain. I. Lipids from bacillus acidocaldarius ZIMET 11274

A new isolated Bacillus strain was cultivated continuously at 68°C and pH 3 for a long time. Extractable lipids represent about 3.6% of cell dry weight and are made up of 18% neutral lipids, 39.3% glycolipids, and 42% acidic lipids. Main components of the fatty acid fraction are ω-cyclohexylundecanoic acid and ω-cyclohexyltridecanoic acid, respectively. MK-7 and hop-22(29)-ene are components of the unsaponifiable fraction. The glycolipid fraction contains the pentacyclic triterpenoid tetrahydroxybacteriohopane. Based on the thermoacidophilic growth conditions, the morphologic and physiological properties, and the nature of lipids, it can assumed that the new isolated strain belongs to the species Bacillus acidocaldarius.