Patent · US Expired

Microbial production of terephthalic acid and isophthalic acid

US6187569A · kind A · utility

13Cited by
0References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 29, 1999
Grant dateFeb 13, 2001
Priority date
Expiry dateJun 29, 2019

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12P7/46
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

This invention relates to a biocatalytic process to produce terephthalic acid and isophthalic acid from p-xylene and m-xylene, respectively. Terephthalic acid has been prepared by oxidizing p-xylene with bacteria belonging to the genus Burkholderia. Conversion of p-xylene into terephthalic acid is accomplished by a single bacterial strain that produces all of the requisite enzymes. In addition, this invention relates to the preparation of isophthalic acid from a mixture of m- and p-xylene.

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