Procedure for the preparation of D-(-)-lactic acid with Lactobac

Details Procedure for the preparation of D-(-)-lactic acid with Lactobac Procedure for the preparation of D-(-)-lactic acid with Lactobac

1992-05-05

1994-06-21

Marx, Irene

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing oxygen-containing organic compound

435853, 435244, 4352529, C12P 756, C10N 138, C12N 120

Patent

active

053227816

ABSTRACT:
The invention relates to a procedure for the preparation of D-(-)-lactic acid in which a strain of Lactobacillus bulgaricus capable of converting lactose into D-(-)-lactic acid to an extent of more than 50%, is cultivated in a medium containing lactose. It is known that galactose-positive Lactobacillus strains produce mainly L-lactic acid, and galactose-negative strains produce D-(-)-lactic acid almost exclusively, but leave the galactose part of lactose unchanged, the D-(-)-lactic acid being thereafter recovered. Strains suitable for use in the present procedure are Lactobacillus bulgaricus CBS 743.84, CBS 687.85, and CBS 688.85.

REFERENCES:
patent: 4467034 (1984-08-01), Voelskow
patent: 4771001 (1988-09-01), Bailey et al.

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