Patents by Inventor Olga Grigorievna Polatovshaya

Olga Grigorievna Polatovshaya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Enzyme of hydrolytic action, enzymatic preparation, method for preparing both and their uses
    Patent number: 4066503
    Abstract: An enzyme of hydrolytic action, according to the invention, is a neutral protease having the molecular weight of about 37,000, the isoelectric point at pH 8.8, the optimum activity at 40.degree. - 45.degree. C, the stability range in aqueous solutions at pH 6.8 - 8.0, quickly inactivating in said solutions at temperatures above 50.degree. C.The enzymatic preparation containing the enzyme of hydrolytic action in an amount of 50 - 500 PU/g and the metabolites of the strains Streptomyces hygroscopicus.A method for preparing the hydrolytic enzyme, in which the strain Streptomyces hygroscopicus is cultivated on media containing assimilable sources of carbon and nitrogen, inorganic mineral salts, in deep aerobic conditions, with accumulation of the enzyme of hydrolytic action and the metabolites of the said strains in the culture fluid, followed by subsequent isolation of the enzyme.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: January 3, 1978
    Inventors: Alexandr Pavlovich Bashkovich, Evgenia Semenovna Zimnukhova, Agnessa Vladimirovna Prokopovich, Olga Grigorievna Polatovshaya, Maria Ivanovna Pronina, Valter Osvaldovich Kulbakh, Khasya Ionovna Rivkina-Pevtsova, Grigory Efimovich Grinberg