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2 088 666

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C1

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IPC

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Application

95116665/13, 1995-09-25

(22)

Actual filing date

1995-09-25

(45)

Published

1997-08-27

(72)

Inventor

Ermakova V.P.Golubtsova V.M.Sakson E.E.Ajukov V.V.Gil' G.S.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost' Sankt-Peterburgskogo Zavoda Limonnoj Kisloty

STRAIN OF MICROSCOPIC FUNGUS ASPERGILLUS NIGER - A PRODUCER OF CITRIC ACID Russian patent published in 1997 - IPC

Abstract RU 2088666 C1

FIELD: biotechnology. SUBSTANCE: new strain of Aspergillus niger VKPM F-714 is obtained by genetic-selection methods and on the base of mutagenesis by UV-irradiation. Output of new strain with respect to citric acid production is more by 5.3-12.8% and sugar conversion to citric acid - by 4.9-10.5% as compared with that of the strain-analog. Strain is resistant to molasses medium components, produces lower amount of melanines (beige color of conidia). EFFECT: enhanced effectiveness of citric acid production, simplified technology. 1 tbl

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RU 2 088 666 C1

Authors

Ermakova V.P.

Golubtsova V.M.

Sakson E.E.

Ajukov V.V.

Gil' G.S.

Dates

1997-08-27—Published

1995-09-25—Filed

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