D-Amino acid aminotransferase was found in several thermophilic Bacillus species and purified to homogeneity from the best producer, Bacillus sp. YM-1, which was newly isolated from a sauna dust. The enzyme has a molecular weight of about 62,000 and consists of two subunits identical in molecular weight (30,000). It catalyzes transamination between various D-amino acids and alpha-keto acids, al...

Two thermophilic, spore-forming strains, TM1(T) and TM5, were isolated from deep-sea sediment (4000 m below sea level) of the Ayu Trough in the western Pacific Ocean. Cells of the two strains were Gram-positive, motile and rod-shaped. Their spores were ellipsoidal, subterminal to terminal and occurred in swollen sporangia. The two strains grew at temperatures up to 65 degrees C and in the pH ra...

key dissimilarities between thermophilic and mesophilic anaerobic digestion of waste activated sludge (was) were experimentally studied in this research. typical was with total solids (ts) concentrations of 30 and 60 g/l were digested anaerobically in a batch digester at mesophilic and thermophilic temperatures. solids reduction, total cod changes, the production of different volatile fatty ...

Isolation and identification of thermophilic Bacillus sp was carried out from soil samples of a tannery area. The isolate KCPSS-3, when cultivated in liquid cultures containing trisodium citrate, produced protease. The production reached a maximum in 9 h, with levels of 2.15 U/mg protein. The microorganism utilized several carbon sources for the production of protease. Starch was found to be th...