Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
As a dye-decolorizing microorganism, a fungus, identified as Geotrichum candidum Dec 1, was isolated from the soil. Re-identification of this fungus revealed it to be Thanatephorus cucumeris Dec 1 abbreviated as Dec 1. A crude extracellular enzyme solution was prepared from the culture of Dec 1, and the enzyme solution showed a broad decolorization spectrum of dyes in the presence of H2O2 , indicating the existence of multiple enzymes, including peroxidases. Dec 1 decolorized approximately 12 g/1 of the dye, Reactive Blue 5 (RB5), without a decline in the decolorizing activity at the inhibitory concentration for most of the microorganisms, indicating the resistant property of Dec 1 to a high concentration of the dye RB5. Dec 1 expressed decolorizing activity in the presence of carbon sources and oxygen.
Keywords:
Geotrichum candidum Dec 1, Thanatephorus cucumeris Dec 1, Peroxidase, Reactive Blue 5, Veratryl Alcohol, Azo dye, Anthraquinone dye.
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Authors:Bentham Science Books