The purification and characterization of 4-hydroxy-3-methoxycinnamic (ferulic) acid esterase from Streptomyces olivochromogenes

J Gen Microbiol. 1991 Oct;137(10):2339-45. doi: 10.1099/00221287-137-10-2339.


A 4-hydroxy-3-methoxycinnamic acid (ferulic acid) esterase has been purified from the extracellular broth of cultures of Streptomyces olivochromogenes after growth on oat splet xylan. The purification procedure utilizes ion exchange on DEAE-BioGel A, anion exchange on Mono Q, gel filtration and hydrophobic interaction chromatography. The purified enzyme appeared as a single band on SDS-PAGE, with an apparent Mr of 29,000. Two bands, at pI7.9 and 8.5, were observed on isoelectric focusing. With methyl ferulate as substrate, the pH and temperature optima were 5.5 and 30 degrees C respectively, with a Km of 1.86 mM and Vmax of 0.3 mumols min-1 mg-1. The purfied enzyme released ferulic acid from de-starched wheat bran only in the presence of xylanase.

MeSH terms

  • Bacterial Proteins / isolation & purification*
  • Bacterial Proteins / metabolism
  • Carboxylic Ester Hydrolases / isolation & purification*
  • Carboxylic Ester Hydrolases / metabolism
  • Cell Wall / metabolism
  • Chromatography, Gel
  • Chromatography, Ion Exchange
  • Dietary Fiber / metabolism
  • Glycoside Hydrolases / metabolism
  • Hydrogen-Ion Concentration
  • Isoelectric Focusing
  • Kinetics
  • Molecular Weight
  • Streptomyces / enzymology*
  • Xylan Endo-1,3-beta-Xylosidase


  • Bacterial Proteins
  • Dietary Fiber
  • Carboxylic Ester Hydrolases
  • feruloyl esterase
  • Glycoside Hydrolases
  • Xylan Endo-1,3-beta-Xylosidase