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Research Journal of Phytochemistry
  Year: 2011 | Volume: 5 | Issue: 2 | Page No.: 89-97
DOI: 10.3923/rjphyto.2011.89.97
 
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Phytochemical Evaluation and Radical Scavenging Activity of Bauhinia variegata, Saraca asoka and Terminalia arjuna Barks

A.K. Pandey, Vijayalakshmi Ojha, Swati Yadav and Sonu Kumar Sahu

Abstract:
Phytochemical estimation and radical scavenging activity were carried out in the barks of Bauhinia variegata, Saraca asoka and Terminalia arjuna collected from central India with the objective to determine optimum harvesting age (girth class). Bark samples were analyzed for total phenols, flavonoids and tannins. Radical scavenging activity of the barks was evaluated using DPPH assay. Significant variation was observed in total phenols and tannins in B. variegata; flavonoids and tannins in T. arjuna with respect to different girth classes. However, no significant variation was found in chemical constituents among different girth classes of S. asoka. Gallic acid was used as standard having IC50 value of 1.06±0.10 μg mL-1. Radical scavenging activity showed significant variation in the barks of different girth classes of B. variegata, S. asoka and T. arjuna. The results revealed that the optimum girth class to harvest barks of B. variegata was 36-55 cm, S. asoka 61-90 cm and T. arjuna 121-150 cm as these were found to contain maximum concentration of active ingredients and possess high radical scavenging activity. Among the studied species T. arjuna showed maximum radical scavenging activity and thus can be termed as a potent antioxidant species whose bark can be used for making various formulations containing natural antioxidants.
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How to cite this article:

A.K. Pandey, Vijayalakshmi Ojha, Swati Yadav and Sonu Kumar Sahu, 2011. Phytochemical Evaluation and Radical Scavenging Activity of Bauhinia variegata, Saraca asoka and Terminalia arjuna Barks. Research Journal of Phytochemistry, 5: 89-97.

DOI: 10.3923/rjphyto.2011.89.97

URL: https://scialert.net/abstract/?doi=rjphyto.2011.89.97

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