Antioxidant flavonoids from the seed of Oroxylum indicum

  • Fitoterapia. 2011 Sep;82(6):841-8. doi: 10.1016/j.fitote.2011.04.006.
Ren-yi Yan  1 ,  Yang-yang Cao ,  Cheng-yu Chen ,  Hui-qing Dai ,  Sheng-xian Yu ,  Jie-lin Wei ,  Hua Li ,  Bin Yang
Affiliations
  • 1. Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China.
PMID: 21596112 DOI: 10.1016/j.fitote.2011.04.006
Abstract

Three new flavonoid glycosides (1-3) and nineteen known compounds (4-22) were isolated from the aqueous ethanolic extract of the seed of Oroxylum indicum. The structures of 1-3 were elucidated on the basis of spectroscopic analysis. Antioxidant activities of all the isolated compounds were evaluated using a DPPH and an ORAC assay. Compounds 3, 5-7, 9 and 12 exhibited potent antioxidant activity in the DPPH assay, while compounds 3-15 showed potent antioxidant capacity in the ORAC assay, and seven antioxidant Flavonoids (4-6, 8, 9, 11, 12) were detected as the main ingredients in the methanolic extract of seed of O. indicum using an HPLC analysis.

Products