PHYTOCHEMICAL SCREENING, TLC FINGERPRINTING AND ANTIMICROBIAL ACTIVITY OF METHANOLIC LEAF EXTRACT OF ALOE VERA AGAINST CLINICAL ISOLATES OF METHICILLIN RESISTANT Staphylococcus aureus
Journal Title: Mintage journal of pharmaceutical and medical sciences - Year 2016, Vol 5, Issue 2
Abstract
Objective: The present study was carried out to investigate phytochemical properties, Thin layer chromatography (TLC) fingerprinting and antimicrobial activity of methanolic leaf extract of Aloe vera. Methods: A. vera leaves were collected, dried and powdered. The leaf powder was subjected to methanolic extraction. Preliminary phyotochemical screening done by using standard procedures. TLC studies of the methanol leaf extract of A. vera were carried out by using two different solvent systems. Solvent system I consist of Chloroform: Methanol (12:2) and solvent system II consist of Ethyl acetate: Toluene: Formic acid (2.2:1.1:1.1). The antibacterial activity of the methanolic leaf extract of A. vera was studied using disc diffusion method against Staphylococcus aureus ATCC 2592 and Methicillin Resistant Staphylococcus aureus (MRSA).Result: Preliminary phytochemical analysis of methanolic leaf extract of A. vera revealed that presence of carbohydrates, glycosides, amino acids, phenolic compounds, steroids, terpenoids, tannins, saponins, flavonoids and alkaloids. The Rf values of methanolic leaf extract in solvent system I is 0.66 and solvent system II is 0.42. The methanolic leaf extract of A. vera exhibited antimicrobial activity on S. aureus ATCC 25923 and MRSA. Maximum zone of inhibition was observed at 50 mg/ml of methanolic leaf extract of A. vera.Conclusion: The present results suggest that methanolic leaf extract of A. vera have significant antibacterial activity against Staphylococcus aureus ATCC 2592 and Methicillin Resistant Staphylococcus aureus (MRSA).
Authors and Affiliations
venkatappa b, shobha r, nageswari g g, sri lakshmi b, harinatha reddy a
Keywords
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