Chemical composition, antioxidant and anticancer effects of the seeds and leaves of indigo (Polygonum tinctorium Ait.) plant

Hong Gi Jang, Buk Gu Heo, Yong Seo Park, Jacek Namiesnik, Dinorah Barasch, Elena Katrich, Kann Vearasilp, Simon Trakhtenberg, Shela Gorinstein*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Seeds and leaves of indigo (Polygonum tinctorium Ait.) plant were investigated and compared with another medicinal plant named prolipid for their properties such as chemical composition, antioxidant, and anticancer effects by Fourier transform infrared, three-dimensional fluorescence spectroscopy, and electrospray ionization-MS in negative mode. It was found that polyphenols, flavonoids, and flavanols were significantly higher in prolipid (P<0.05), following by indigo mature leaves, immature leaves, and seeds. Methanol extract of matre indigo leaves in comparison with the ethyl acetate extract showed higher inhibition of proliferation. The interaction between polyphenol extracts of indigo mature leaves and BSA showed that indigo has a strong ability, as other widely used medicinal plants, to quench the intrinsic fluorescence of BSA by forming complexes. In conclusion, indigo mature leaves were compared with prolipid. High content of bioactive compounds, antioxidant, fluorescence, and antiproliferative properties of indigo justifies the use of this plant as a medicinal plant and a new source of antioxidants.

Original languageEnglish
Pages (from-to)1986-2004
Number of pages19
JournalApplied Biochemistry and Biotechnology
Volume167
Issue number7
DOIs
StatePublished - Aug 2012

Keywords

  • Antioxidant and anticancer activities
  • Bioactive compounds
  • Extracts
  • Indigo

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