Article · Volume 7, Issue 25 · pp.

Total polyphenolic (flavonoids) content and antioxidant capacity of different Ziziphora clinopodioides Lam. extracts

Shuge Tian^2,3, Yang Shi^2,3, Xiaoying Zhou⁴, Liang Ge^2,3, Halmuart Upur^2,3

¹Xinjiang Key Laboratory of Famous Prescription and Science of Formulas, China.
²College of TCM, Xinjiang Medical University, China.
³College of Pharmacy, Xinjiang Medical University, Urumqi 830011, Xinjiang, People’s Republic of, China.

Abstract

Objective: This paper investigates the total polyphenolic and flavonoid content as well as the antioxidant activity of Ziziphora clinopodioides Lam. extracts of different polarity.Materials and Methods: The total polyphenolic content was analysed using the Folin– Ciocalteu method. Total flavonoid content analysis was performed using the colorimetric method.Results: The total polyphenolic content of Z. clinopodioides is concentrated in parts of ethyl acetate (19.27%), chloroform (4.99%) and n-butanol extracts (3.94%) containing a small amount of the total polyphenolic content. The petroleum ether (0.23%) and ethanol extracts (1.64%) contain almost no polyphenolic content. The total flavonoid content of Z. clinopodioides is concentrated in parts of ethyl acetate (65.61%), chloroform (14.36%) and n-butanol extracts (10.76%) containing a small amount of the total polyphenolic content. The Z. clinopodioides Lam. ethyl acetate extract exhibits a good antioxidant activity.Conclusion: Ethyl acetate extracts contain a large number of polyphenolic compounds (19.27%) and flavonoids (65.61%) owing to good antioxidant capacity.

Keywords: Antioxidant capacity; total flavonoids; total polyphenolic; Ziziphora clinopodioides Lam

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