Advances in Traditional Medicine

  • 제9권3호
  • /
  • Pages.217-224
  • /
  • 2009
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  • 2662-4052(pISSN)
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  • 2662-4060(eISSN)
경희대학교 융합한의과학연구소 (Kyung Hee Oriental Medicine Research Center)
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Antioxidative and anti-α-amylase activities of four wild plants consumed by pastoral nomads in Egypt

  • Hossain, SJ (Applied Molecular Bioscience, Graduate School of Medicine, Yamaguchi University) ;
  • El-Sayed, M (Botany Department, Aswan Faculty of Science, South Valley University) ;
  • Aoshima, H (Applied Molecular Bioscience, Graduate School of Medicine, Yamaguchi University)
  • 발행 : 2009.09.30
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초록

In this study, four plants grown naturally in Egypt that are usually consumed by pastoral nomads were screened for their total phenolic contents, antioxidative, and anti-$\alpha$-amylase activities. Dried powder of plant's part was extracted in absolute or 70% ethanol. A polar extract of Panicum turgidum (PTPE) had the highest total polyphenol content {92.5 mg gallic acid equivalents (GAE)/g}, followed by an alkaloid extract of Withania somnifera (WSAlk; 77.5 mg GAE/g), and an ethanol extract of Leptadenia pyrotechnica (LPEE; 59.1 mg GAE/g). By employing different assays such as DPPH radical scavenging, reducing power, $Fe^+$ chelating, $H_2O_2$ scavenging and total antioxidant capacity, it was shown that PTPE, WSEE (ethanol extract of W. somnifera), WSAlk and LPEE had promising antioxidant activity, though, their potency varied according to the different tests. WSAlk had the highest level of $\alpha$-amylase inhibition (40.2%) in vitro, followed by WSEE (30.5%). Therefore, it can be concluded that these plants, especially extracts of PTPE, and WSAlk are beneficial to physiological health, and could be used in food and pharmaceutical industries to prepare dietary supplements, functional foods or food preservatives.

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