Abstract

SECONDARY METABOLITES SCREENING AND PHARMACOLOGICAL ACTIVITIES OF LEMONGRASS

Sujayee Das, Sunita Yadav and Vinod Kumar Gupta*

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Abstract

The prominent cultivation of lemongrass (Cymbopogon spp.) relies on the pharmacological incentives of its essential leaf extraction. Dried leaves extract was prepared in aqueous and methanol solvent. Both Qualitative and Quantitative tests are done for confirmation of presence of phytochemicals in lemongrass. After, experiment it is observed that lemongrass leaves carry a remarkable and more amount of numerous bioactive compounds in methanol extract than in aqueous extract, such as Flavonoid (0.12g/100g), Tannin (0.063g/100g), Phenolics (0.02g/100g), Carbohydrate (0.16g/100g), Protein (0.02g/100g) and Alkaloid (1%). These crude plant extract contain various pharmacological properties including anti-inflammatory (69.39%) in aqueous extract & antioxidant (54%) in methanol extract. The antibacterial activity of the extract was estimated by using disc diffusion method, where inhibition zones are formed. In this paper it’s observed the antibacterial property in Staphylococcus aureus, having inhibition zone of (22mm & 30mm) in methanol and aqueous extract respectively are observed, and Escherichia coli, having inhibition zone of (14mm) in methanol extract & no zone of inhibition in aqueous extract. So, in this paper it is analysed studied about the phytochemical screening and pharmacological activities of lemongrass. Lemongrass extract attributes are commercially exploited in the pharmaceutical, cosmetics, and food preservations industries.

Keywords: Lemongrass, aromatic, medicinal, antioxidant, anti-inflammatory, antibacterial, phytochemicals.