Conversion of dihydroflavonols to flavonols with enzyme extracts from flower buds of matthiola incana R. Br.

R. Spribille, G. Forkmann

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Soluble enzyme preparations from flower buds of Matthiola incana catalysed the conversion of dihydrokaempferolto kaempferol and of dihydroquercetin to quercetin. The reaction required 2-oxoglutarate, ascorbate and Fe2+as cofactors and had a pH-optimum at about 7.0. Highest enzyme activity was already present in the youngest buds followed by a rapid decline during bud and flower development. Furthermore, a substantial correlation was observed between the enzyme activity for flavonol formation and the flavonol content of the buds and flowers.

Original languageEnglish
Pages (from-to)714-719
Number of pages6
JournalZeitschrift fur Naturforschung - Section C Journal of Biosciences
Volume39
Issue number7-8
DOIs
StatePublished - 1984
Externally publishedYes

Keywords

  • Dioxygenase
  • Flavonoid Biosynthesis
  • Flavonols
  • Matthiola incana

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