Formation of beta-fructosyl compounds of pyridoxine in growing culture of Aspergillus niger

Biosci Biotechnol Biochem. 1993 Jun;57(6):875-80. doi: 10.1271/bbb.57.875.

Abstract

Two pyridoxine compounds were found to be formed in a culture filtrate of Aspergillus niger and A. sydowi, when grown in a medium containing sucrose and pyridoxine. Each of the two compounds I and II was obtained as a white powdered preparation by preparative paper chromatography, gel filtration on Toyopearl HW-40S and Sephadex G-10 columns, DEAE-cellulose column chromatography, and lyophilization. Compounds I and II were identified as 5'-O-(beta-D-fructofuranosyl)-pyridoxine and 5'-O-[beta-D-fructofuranosyl-(2-->1)-beta-D-fructofuranosyl]-pyridoxine, on the basis of the various experimental results, viz., elementary analyses, UV, 1H-, and 13C-NMR spectra, products by hydrolysis with acid and yeast beta-D-fructofuranosidase, migration on paper electrophoresis, and Gibbs reaction in the presence and absence of boric acid. Levansucrase from Microbacterium laevaniformans and yeast beta-D-fructofuranosidase did not catalyze the beta-D-fructofuranosyl transfer from sucrose to pyridoxine to give rise to beta-D-fructofuranosyl-pyridoxine.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aspergillus niger / growth & development
  • Aspergillus niger / metabolism*
  • Carbohydrate Sequence
  • Culture Media
  • Disaccharides / biosynthesis*
  • Disaccharides / chemistry
  • Disaccharides / isolation & purification
  • Fructose / analogs & derivatives*
  • Fructose / biosynthesis
  • Fructose / chemistry
  • Fructose / isolation & purification
  • Molecular Sequence Data
  • Pyridoxine / analogs & derivatives*
  • Pyridoxine / biosynthesis
  • Pyridoxine / chemistry
  • Pyridoxine / isolation & purification
  • Pyridoxine / metabolism*
  • Seeds / metabolism
  • Sucrose / metabolism

Substances

  • Culture Media
  • Disaccharides
  • 5'-O-fructofuranosylpyridoxine
  • 5'-O-(fructofuranosyl-2-1-fructofuranosyl)pyridoxine
  • Fructose
  • Sucrose
  • Pyridoxine