METHOD OF γ-AMINOBUTYRIC ACID PRODUCING Russian patent published in 1999 - IPC

Abstract RU 2143002 C1

FIELD: amino acids, biotechnology, microbiology. SUBSTANCE: invention proposes a method of producing γ-aminobutyric acid (GABA) by metabolism of L-glutamic acid or its salts in the presence of biomass of bacterium Escherichia coli VKPM B-7460 or Escherichia coli VKPM B-7452 followed by purification and isolation of the end product. Decarboxylase activity of cells is 5 mcM GABA/min/mg of crude biomass and specific consumption of cells in the process of metabolism is 40 mg of crude biomass/1 g of GABA. The yield of the end product from glutamic acid is 55.6% wt.-% and that from sodium glutamate - 40 wt.-%. The content of GABA in the dry preparation - 98.7%. EFFECT: improved method of producing, increased yield and content. 1 tbl, 2 ex

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RU 2 143 002 C1

Authors

Gusjatiner M.M.

Kaluzhskij V.E.

Jampol'Skaja T.A.

Plokhov A.Ju.

Kopelevich V.M.

Shul'Ga A.A.

Sukhareva B.S.

Darij E.L.

Reznik A.I.

Leonova T.V.

Dates

1999-12-20Published

1997-12-24Filed