Identification of Radical Scavengers in Sweet Grass (Hierochloe odorata)

A. Pukalskas, T.A. van Beek, R.P. Venskutonis, J.P.H. Linssen, A. van Veldhuizen, Æ. de Groot

Research output: Contribution to journalArticleAcademicpeer-review

58 Citations (Scopus)

Abstract

Extracts from aerial parts of sweet grass (Hierochloe odorata) were active DPPH free radical scavengers, The active compounds were detected in extract fractions using HPLC with on-line radical scavenging detection. After multistep fractionation of the extract, two new natural products possessing radical scavenging activity were isolated, and their structures were elucidated by NMR and MS. They were identified as 5,8-dihydroxybenzopyranone and 5-hydroxy-8-O-beta-D-glucopyranosyl-benzopyranone. Activities of the compounds isolated were tested by DPPH and ABTS free radical scavenging assays, and compared with the known natural antioxidant rosmarinic acid and Trolox.
Original languageEnglish
Pages (from-to)2914-2919
JournalJournal of Agricultural and Food Chemistry
Volume50
Issue number10
DOIs
Publication statusPublished - 2002

Keywords

  • antioxidant activity
  • plant-extracts
  • oil

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