Stimulatory effect of growth in the presence of alcohols on biotransformation of penicillin G into cephalosporin-type antibiotics by resting cells of Streptomyces clavuligerus NP1

Appl Microbiol Biotechnol. 1999 Oct;52(4):484-8. doi: 10.1007/s002530051549.

Abstract

Growth of Streptomyces clavuligerus NP1 in the presence of methanol or ethanol resulted in a marked increase in production of cephalosporin(s) from penicillin G by resting cells. The mycelium produced in alcohol-supplemented medium was fragmented and dispersed as compared with growth in control medium. HPLC analysis showed that at least two products were present in the biotransformation supernatant fluid after 1 h incubation. One of them has been identified as deacetoxycephalosporin G (DAOG).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alcohols / pharmacology*
  • Biotransformation / drug effects
  • Cephalosporins / analysis
  • Cephalosporins / metabolism*
  • Chromatography, High Pressure Liquid
  • Culture Media / chemistry
  • Ethanol / pharmacology
  • Methanol / pharmacology
  • Penicillin G / metabolism*
  • Penicillins / metabolism*
  • Streptomyces / drug effects*
  • Streptomyces / growth & development
  • Streptomyces / metabolism
  • Time Factors

Substances

  • Alcohols
  • Cephalosporins
  • Culture Media
  • Penicillins
  • Ethanol
  • Penicillin G
  • Methanol