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Hassan, R., Hamed, H., Hamail, A., El-Hendawy, M. (2013). PHYTOCHEMICAL AND FREE RADICAL SCAVENGING ACTIVITY OF HENNA LEAVES EXTRACTS. Journal of Agricultural Chemistry and Biotechnology, 4(8), 333-345. doi: 10.21608/jacb.2013.53223
R. A. Hassan; H. B. Hamed; A. F. Hamail; M. A. El-Hendawy. "PHYTOCHEMICAL AND FREE RADICAL SCAVENGING ACTIVITY OF HENNA LEAVES EXTRACTS". Journal of Agricultural Chemistry and Biotechnology, 4, 8, 2013, 333-345. doi: 10.21608/jacb.2013.53223
Hassan, R., Hamed, H., Hamail, A., El-Hendawy, M. (2013). 'PHYTOCHEMICAL AND FREE RADICAL SCAVENGING ACTIVITY OF HENNA LEAVES EXTRACTS', Journal of Agricultural Chemistry and Biotechnology, 4(8), pp. 333-345. doi: 10.21608/jacb.2013.53223
Hassan, R., Hamed, H., Hamail, A., El-Hendawy, M. PHYTOCHEMICAL AND FREE RADICAL SCAVENGING ACTIVITY OF HENNA LEAVES EXTRACTS. Journal of Agricultural Chemistry and Biotechnology, 2013; 4(8): 333-345. doi: 10.21608/jacb.2013.53223

PHYTOCHEMICAL AND FREE RADICAL SCAVENGING ACTIVITY OF HENNA LEAVES EXTRACTS

Article 3, Volume 4, Issue 8, August 2013, Page 333-345  XML PDF (714.99 K)
Document Type: Original Article
DOI: 10.21608/jacb.2013.53223
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Authors
R. A. Hassan1; H. B. Hamed1; A. F. Hamail2; M. A. El-Hendawy3
1Agri. Chemistry Dept., Faculty of Agricultural, Mansoura University, Egypt.
2Vegetable Dept., Faculty of Agricultural, Damietta University, Egypt.
3Agri. Chemistry Dept., Faculty of Agricultural, Damietta University, Egypt.
Abstract
The ability of Lawsonia inermis (Henna) to prevent the initiation of free radicals that cause cellular damage was investigated in vitro. The plant leaves were extracted using methanol (ME) and diethylether (EE) and the active ingredient, Lawsone (2-hydroxy 1,4-naphthaquinone) was separated by column chromatography. In the reducing power assay, the more antioxidant compounds convert the oxidation form of iron (Fe+3) in ferric to ferrous chloride (Fe+2). The reducing power capacity of the methanol and etheric extracts were significantly less than that of vitamin C. Total phenolic (TPC) and total flavonoid contents (TFC) were evaluated. In this study, etheric extract has the highest TPC and TFC. Radical scavenging activities of lawsone and the extracts were tested against DPPH, NO•, SOD and HO•.  The strongest free radical inhibition was demonstrated by etheric extract against radical scavengers, DPPH and SOD in a dose-dependent on IC50 value of 18.17 and 137 µg/mL, respectively. Also, the activity of lawsone to scavenge nitric oxide radical was higher than that of the standard (quercetin) and (ME, EE) extracts. These results clearly indicate the useful effect of lawsone and these extracts as antioxidants and anticancer agents.
Keywords
Lawsonia inermis; Free radicals; antioxidant; Lawsone; Radical scavengers
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