The Journal of Biological Physics and Chemistry

Effect of UV irradiation on several functional characteristics of 11⁵⁽¹⁾ y Nocardiophsis dessonvillei

M. Gordeziani, M. Tabatadze, I. Atanelishvili and N. Bochorishvili

The preservation of materials and goods greatly depends on the measures taken to control the growth of microorganisms. Fungal metabolites such as organic acids, enzymes, active forms of oxygen and nitric oxide (NO), in addition to mechanical damage, cause considerable changes to the physico-chemical and other parameters of materials. Among fungal metabolites, the products of oxidative reactions are of the greatest interest. In the light of recent work, it is well established that a high level of these metabolites determines the activity and aggressiveness of various strains of microorganisms. Our goal has been to define the metabolic reactions of certain microorganisms in laboratory conditions. The effect of ultraviolet irradiation on the destructive activity of 11⁵⁽¹⁾ y Nocardiophsis dessonvillei has been investigated. Quantitative changes in the amount of viable cells, exogenous protein concentraÂtion, activity of acid phosphatase and peroxidation reaction products have been measured.

Keywords: biodegradation, microorganisms, peroxidation, UV irradiation