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(19)

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2 467 068

(13)

(51)

IPC

C12N9/64(2006-01-01)

(21) (22)

Application

2011121189/10, 2011-05-25

(24)

Start date

2011-05-25

(22)

Actual filing date

2011-05-25

(45)

Published

2012-11-20

(72)

Inventor

El'Chaninov Vadim ValentinovichKoval' Anatolij Dmitrievich

(73)

Holder

Gosudarstvennoe Nauchnoe Uchrezhdenie Sibirskij Nauchno-Issledovatel'Skij Institut Syrodelija Rossijskoj Akademii Sel'Skokhozjajstvennykh Nauk Sibniis Rossel'Khozakademii)

METHOD OF PRODUCING MILK-CLOTTING ENZYME PREPARATION Russian patent published in 2012 - IPC C12N9/64

Abstract RU 2467068 C1

FIELD: chemistry.

SUBSTANCE: raw material is prepared and homogenised. An extractant is added, said extractant being an aqueous solution acidified with hydrochloric acid to pH 1.5-2.0 with addition of 7.5-10.0% ammonium sulphate. Extraction is then carried out. The obtained mixture is settled until separation thereof into a liquid phase and a residue. The milk-clotting enzyme is separated and then processed.

EFFECT: invention reduces the time for producing the enzyme preparation, increases its specific milk-clotting activity and purity, and also reduces its loss in industrial production conditions.

1 tbl, 5 ex

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RU 2 467 068 C1

Authors

El'Chaninov Vadim Valentinovich

Koval' Anatolij Dmitrievich

Dates

2012-11-20—Published

2011-05-25—Filed