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PM · Lens · In vitro Antioxidant Potentials of Cyperus rotundus L. Rhizome Extracts and Their Phytochemical Analysis

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Article · Volume 14, Issue 54 · pp. 261–267

In vitro Antioxidant Potentials of Cyperus rotundus L. Rhizome Extracts and Their Phytochemical Analysis

Arunagiri Kamala2, Sushil Kumar Middha3, Chitra Gopinath4, H. S. Sindhura4, Chandrakant S. Karigar2,5

  1. 1Department of Studies and Research in Biochemistry, Tumkur University, Tumkur, Department of, India.
  2. 2Biotechnology and, India.
  3. 3Biochemistry, Maharani Lakshmi Ammanni College for Women, Bengaluru, India.
  4. 4Department of Biochemistry, Bangalore University, Bengaluru, Karnataka, India.

Abstract

Background: Cyperus rotundus L. (family Cyperaceae), native to India, is a multivalent medicinal plant widely used in conventional medicine. The research reports on bioactive components from C. rotundus L. are scanty.Objective: The objective of the study was to optimize the best solvent system and bioprospect the possible phytochemicals in C. rotundus L. rhizome (CRR).Materials and Methods: The phytochemicals were extracted from the rhizomes of C. rotundus L. by successive Soxhlet technique with solvents of increasing polarity. The resultant extracts were analyzed for their total flavonoid content (TFC), total phenolic content (TPC), total proanthocyanidin content (TPAC), in vitro antioxidant potential, and inhibition of lipid peroxidation. The 70% acetone extract of CRR was analyzed using gas chromatography–mass spectrometry (GC‑MS) for probable phytochemicals. Results and Discussion: The TPC, TFC, and TPAC estimates ranged from 0.036 ± 0.002 to 118.924 ± 5.946 µg/mg extract, 7.196 ± 0.359 to 200.654 ± 10.032 µg/mg extract, and 13.115 ± 0.656 to 45.901 ± 2.295 µg/mg extract, respectively. The quantities of TPC, TFC, and TPAC were found to be the highest in 70% acetone extract. The 70% acetone and 70% methanol extracts revealed best radical scavenging effect. GC‑MS analysis of CRR extract revealed the presence of a novel compound 1 (2)‑acetyl‑3 (5)‑styryl‑5 (3)‑methylthiopyrazole.Conclusion: The study indicated that 70% acetone and 70% methanol extracts of CRRs can be a potential source of antioxidants.

Keywords: Alkaloids; antioxidants; Cyperus rotundus L. Rhizome; gas chromatography‑mass spectrometry analysis; successive solvent extraction

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