[Various properties of exogenous phospholipase A2 produced by mycelium of Paecilomyces viridis fungus].

The lipolytic activity of extract of mycelium and cultural fluid of fungus Paecilomyces viridis and their protein fraction was investigated. The micelium of fungus Paecilomyces viridis is a weak producent of exogenic phospholipase A2, possessing the hemolytic activity. The optimum of zungal phospholipase A2 activity was within a range of pH 8.

[Immunochemical study of modified forms of L-asparaginase].

Certain catalytic and immunological properties of L-asparaginase modified by polyglucin were studied. It was shown that the modified forms of L-asparaginase maintained high catalytic activity (Km 0.80.

[Determining the peroxidase level using tubular coal electrodes in flow-type systems].

An amperometric transducer with tubular coal electrodes has been worked out to determine the microquantity of peroxidase. The hydrodynamic parameters of the transducer were studied as were the relationship of the output signal to the concentration of the electroactive substance, the length of the electrode, the speed of the background electrolyte movement and the diffusion coefficient. The line section of the relationship between the strength of current and the peroxidase concentration is observed within the interval of the enzymic concentration 1-32 ng/ml with the exposure time of the enzymic reaction of 5-10 min.