J4 ›› 2012, Vol. 11 ›› Issue (3): 1-4.

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Antioxidative Activities of Actaea Plants and Processed Shengma

  

  1. 1. College of Pharmacy and Chemistry, Dali University, Dali ,Yunnan 671000, China;
    2. Department of Biological Science, Lehman College, City University of New York, NY 10468, USA
  • Received:2012-01-19 Online:2012-03-15 Published:2012-03-15

Abstract:

Objective: To better understand the antioxidative activities of the processed Shengma (Zhi Shengma) as well as the common Actaea plants. Methods: Studies on 26 samples of eight Actaea species from both Asia and North America were performed by using DPPH assay and HPLC analysis. Results: Most of the Actaea samples showed weak/no antioxidative activity with IC50> 150 μg·mL-1. Conclusion: The raw extracts of the roots and rhizomes of the Actaea plants only possessed low antioxidative activities.Actaea species is rich in polyphenols and the latter often show certain antioxidative activities. However, since the chemical profiles for polyphenols of Actaea samples are determined by many factors like plant sources, degree of drying, the way to prepare the processed Shengma, the quality and antioxidative activity of both Shengma and processed Shengma are often unstable. Great care should be taken when Shengma or processed Shengma are subjected for bioactive evaluations.

Key words: Actaea(Cimicifuga)plants, processed Shengma, antioxidation, DPPH, polyphenols

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