JOURNAL 66


Records of Natural Products
VOLUME & ISSUE
Year: 2018 Issue: 4 July-August
PAGES
p.397 - 402
STATISTICS
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AUTHORS
    Hatica Han, Hasibe Yılmaz and İlhami Gülçin
PDF OF ARTICLE

GRAPHICAL ABSTRACT


ABSTRACT


Flaxseed (Linum usitatissimum L.) is important source of oil and protein for industrial, pharmaceutical, and nutritional applications. In order to estimate the effects of lyophilized aqueous extract of flaxseed shell (AEF) and evaporated ethanolic extract of flaxseed shell (EEF), we studied their DPPH, ABTS, DMPD and O 2 •- scavenging effects. Total antioxidant activity by ferric thiocyanate method, Fe 3+, Cu 2+ and [Fe 3+-(TPTZ) 2] 3+ reducing ability, and Fe 2+ chelating activity. Also, α-tocopherol, BHA, trolox, and BHT were used as positive controls. The results clearly AEF and EEF demonstrated effective antioxidant activity. The quantity of p-hydroxybenzoic, vanillin, p-coumaric acid, ascorbic acid, ferulic acid, and ellagic acid were investigated by LC-MS/MS. The present study will introduce a novelty for further studies on the antioxidant effects of AEF and EEF.

KEYWORDS
  • Flaxseed
  • Linum usitatissimum
  • antioxidant activity
  • polyphenol content