Patent · US Expired

Method for preparing d-tartaric acid

US3957579A · kind A · utility

4Cited by
1References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 24, 1975
Grant dateMay 18, 1976
Priority date
Expiry dateApr 24, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S435/829
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

Dextro or d-tartaric acid is prepared by microbial conversion of cis-epoxysuccinic acid which is subjected to asymmetrical hydrolysis by the catalytic action of a microorganism taken from the group consisting of the genera Achromobacter and Alcaligenes in which cis-epoxysuccinic acid in an aqueous solution is brought into contact with the enzyme d-tartrate epoxidase.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.