Screening of Phytochemicals, Antioxidant and Silver Nanoparticles Biosynthesizing Capacities of Some Medicinal Plants of Nepal
Journal of Plant Sciences
Volume 2, Issue 1, February 2014, Pages: 77-81
Received: Dec. 16, 2013; Published: Feb. 28, 2014
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Authors
Khem Raj Giri, Department of Biochemistry, Universal Science College, Chakupat, Lalitpur, Nepal
Bibek GC, Department of Biochemistry, Universal Science College, Chakupat, Lalitpur, Nepal
Dipen Kharel, Department of Biochemistry, Universal Science College, Chakupat, Lalitpur, Nepal
Bimala Subba, Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
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Abstract
In this study, three plants i.e. J. adhatoda, A. vulgaris and P. guajava native to Pashupati area and Jorpati of Nepal were screened to evaluate the phytochemical and antioxidant activities due to their high medicinal value. The dried leaves were extracted with three solvents: hexane, methanol and distill water. The extracts were subjected to various phytochemical tests. The test confirmed the presence of various phytochemicals. The antioxidant activity of the methanol extracts were evaluated by FRAP assay. The antioxidant activity of J. adhatoda was found to be 0.794mM Fe (II)/L, A. vulgaris to be 0.949 mM Fe (II)/L and P. guajava was found to be 2.035 mM Fe (II)/L. Fresh aqueous leaf extracts of A. vulgaris and J. adhatoda were used for synthesis of silver nanoparticles. The biosynthesized AgNPs were characterized by Transmission Electron Microscope (TEM).
Keywords
Phytochemicals, Justicia Adhatoda, Artemisia Vulgaris, Psidium Guajava, Antioxidant Activity, FRAP, Silver Nanoparticles
To cite this article
Khem Raj Giri, Bibek GC, Dipen Kharel, Bimala Subba, Screening of Phytochemicals, Antioxidant and Silver Nanoparticles Biosynthesizing Capacities of Some Medicinal Plants of Nepal, Journal of Plant Sciences. Vol. 2, No. 1, 2014, pp. 77-81. doi: 10.11648/j.jps.20140201.22
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