METHOD OF PREPARING GROWTH PROTEINS FROM SERUM BLOOD OF ANIMALS OF DIFFERENT SPECIES Russian patent published in 1998 - IPC

Abstract RU 2112799 C1

FIELD: biotechnology, proteins. SUBSTANCE: growth proteins are prepared from animal serum blood by two-fold treatment with polyethylene glycol (final concentration is 5.0-7.5%). After acidification with hydrochloric acid solution polyethylene glycol concentration is brought about to 18-20%. Preparation is subjected to three-fold freezing and thawing, dried and remained as a liquid. Method ensures to obtain harmless and highly active preparation that can be used for culturing cellular cultures and viruses. EFFECT: improved method of preparing, high activity of preparation. 3 cl, 4 tbl

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RU 2 112 799 C1

Authors

Kostina G.A.

Radaeva I.F.

Shmeleva S.B.

Andreeva M.A.

Dates

1998-06-10Published

1996-02-16Filed