Two new antioxidant diarylheptanoids from the fruits of Alpinia oxyphylla

Qing Ya Bian, Shi Yun Wang, Li Jia Xu, Chi On Chan, Kam Wah Mok, Si Bao Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

30 Citations (Scopus)


Two new diarylheptanoids, 1-(3′,5′-dihydroxy-4′- methoxyphenyl)-7-phenyl-3-heptanone (1) and 1-(2′,4′-dihydroxy- 3′-methoxyphenyl)-7-(4″-methoxyphenyl)-3-heptanone (2), along with known diarylheptanoid yakuchinone A (3), and five flavanoids, tectochrysin (4), chrysin (5), izalpinin (6), kaempferol 7, 4′-dimethyl ether (7), and kaempferide (8) were isolated from the fruits of Alpinia oxyphylla Miq. Their structures were determined by means of spectroscopic methods. Antioxidant activities of all the isolated compounds were evaluated using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Compounds 1-3 and 6-8 exhibited potent antioxidant activities in the DPPH assay.
Original languageEnglish
Pages (from-to)1094-1099
Number of pages6
JournalJournal of Asian Natural Products Research
Issue number10
Publication statusPublished - 1 Oct 2013


  • Alpinia oxyphylla
  • Antioxidant
  • Diarylheptanoid

ASJC Scopus subject areas

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry


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