Biosynthesis of 2,5-furan dicarboxylic acid by Aspergillus flavus APLS-1: Process optimization and intermediate product analysis

Bioresour Technol. 2019 Jul:284:155-160. doi: 10.1016/j.biortech.2019.03.105. Epub 2019 Mar 21.

Abstract

The aim of the present study was to develop an eco-friendly biological process for the production of 2,5-furan dicarboxylic acid (FDCA) from 5-hydroxy methylfurfuraldehyde (HMF) using microorganisms. Microorganisms were isolated from the soil samples and evaluated for its biotransformation efficiency. Among the isolates, Aspergillus flavus APLS-1 was found to be potent for efficient conversion of HMF to FDCA. The bioconversion parameters were optimized by Box-Behnken design. The optimization resulted in 67% conversion efficiency where 1 g/L HMF (8 mM) was transformed to 0.83 g/L (6.6 mM) FDCA in 14 days at pH6.5 with biomass size of 5.7 g/L and biomass age 60 h. This is the first report on Aspergillus sp., capable of detoxifying HMF and produces FDCA.

Keywords: 2,5-furan dicarboxylic acid; Aspergillus flavus; Biotransformation; Green bioprocess; Hydroxymethyl furfuraldehyde.

MeSH terms

  • Aspergillus flavus / metabolism*
  • Biomass
  • Biotransformation
  • Dicarboxylic Acids / metabolism*
  • Furans / metabolism*

Substances

  • Dicarboxylic Acids
  • Furans