Identification of sensory-active phytochemicals in asparagus (Asparagus officinalis L.)

Corinna Dawid, Thomas Hofmann*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Sensory-directed fractionation of extracts prepared from raw and cooked asparagus (Asparagus officinalis L.), respectively, followed by LC-TOF-MS, LC-MS/MS, and 1D/2D-NMR experiments revealed the chemical structures of nine bitter tasting mono- and bidesmotic saponins as well as the previously not reported 1,2-dithiolan-4-carboxylic acid 6-d-α/β-glucopyranose ester exhibiting an interesting buttery mouth-coating effect. Sensory studies showed that the orosensation imparted by this sulfur compound was reminiscent to that of melting butter and revealed an orosensory recognition threshold of 276.8 μmol/L.

Original languageEnglish
Pages (from-to)11877-11888
Number of pages12
JournalJournal of Agricultural and Food Chemistry
Volume60
Issue number48
DOIs
StatePublished - 5 Dec 2012
Externally publishedYes

Keywords

  • asparagus
  • asparagusic acid
  • bitter
  • mouth-coating
  • steroidal saponin
  • taste
  • taste dilution analysis

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