Purification and Characterization of Thermostable and Detergent-Stable α-Amylase from sp. AH1.

A thermostable and detergent-stable α-amylase from a newly isolated sp. AH1 was purified and characterized. Maximum enzyme production (1874.

Extremely low-frequency magnetic field induces manganese accumulation in brain, kidney and liver of rats.

The aim of the present study was to determine the effects of extremely low-frequency magnetic field (ELF-MF) on accumulation of manganese (Mn) in the kidney, liver and brain of rats. A total of 40 rats were randomly divided into eight groups. Four control groups received 0, 3.

Geobacillus subterraneus subsp. aromaticivorans subsp. nov., a novel thermophilic and alkaliphilic bacterium isolated from a hot spring in Sırnak, Turkey.

A new thermophilic spore-forming strain Ge1(T) was isolated from the Guclukonak hot spring in Sırnak, Turkey. The strain was identified by using a polyphasic taxonomic approach. Strain Ge1(T) was Gram-positive, spore-forming, alkaliphilic rod-shaped, motile, occurring in pairs or filamentous.

Geobacillus galactosidasius sp. nov., a new thermophilic galactosidase-producing bacterium isolated from compost.

Two thermophilic spore-forming strains, with optimum growth temperature at 70°C, were isolated from compost of the "Experimental System of Composting" (Teora, Avellino, Italy). A phylogenetic analysis based on 16S rRNA gene sequences showed that these organisms represented a new species of the genus Geobacillus. Based on polyphasic taxonomic data the strains represented a novel species for which the name Geobacillus galactosidasius sp.

Anoxybacillus kamchatkensis subsp. asaccharedens subsp. nov., a thermophilic bacterium isolated from a hot spring in Batman.

A new thermophilic spore-forming strain KG8(T) was isolated from the mud of Taslidere hot spring in Batman. Strain KG8(T) was aerobe, Gram-positive, rod-shaped, motile, occurring in pairs or filamentous. Growth was observed from 35-65 degrees C (optimum 55 degrees C) and at pH 5.

The use of Bacillus subtilis immobilized on Amberlite XAD-4 as a new biosorbent in trace metal determination.

The present work proposes the use of Bacillus subtilis immobilized on Amberlite XAD-4 as new biosorbent in trace metal determination. The procedure is based on the biosorption of Cu and Cd ions on a column of Amberlite XAD-4 resin loaded with dried, dead bacterial components prior to their determination by flame AAS. Various parameters such as pH, amount of adsorbent, eluent type and volume, flow rate of solution and matrix interference effect on the retention of the metal ions have been studied.