Detection of Antimicrobial Activity of Solanum melogena L. (Egg plant) Against Pathogenic Microorganisms

Pharmacognosy Journal (Impact Factor: 1.26). 10/2010; 2(15):35-39. DOI: 10.1016/S0975-3575(10)80076-8


Introduction: Solanum melogena L. or egg plant is one of few cultivated Solanaceous species originating from the old
world. Methods: To determine antimicrobial effects of egg plant, well agar diffusion assay for bacteria and colony
diameter method for fungi were used. Crude extracts of different parts of Solanum melogena L. (egg plant) were tested
for their antimicrobial activities against seven pathogenic microorganisms that include two strains of fungi
(dermatophytes) and five strains of bacteria. Results: Root and fruit extracts showed significant effects on tested
microorganisms. Epidermophyton floccosum considered the most susceptible fungus for extract of these parts with MIC
value of 15 and 28 mg/ml respectively. Meanwhile, the bacterium Proteus vulgaris exhibited susceptibility to all tested
extracts with less MIC value. Conclusions: Crude extracts of different parts of S. melogena showed variable potential
effects on various types of pathogenic microorganisms.

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Available from: Ali Abdul Hussein S. AL-Janabi
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    ABSTRACT: Helyes et al.: The simultaneous effect of heat stress and water supply on total polyphenol content of eggplant-583-APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 13(2): 583-595. ● ISSN 1589 1623 (Print) ● ISSN 1785 0037 (Online) Abstract. Eggplant is considered as one of the healthiest vegetables due to its nutritional values. A 2-year open field experiment was set up in 2011 and 2012 to observe the effects of heat stress and different irrigation volumes on the amount of phenolic compounds, fibre and dry matter in eggplant fruits. The optimal irrigation volume (IO) was calculated from the daily potential evapotranspiration and was compared to a treatment utilising 50% of the optimal water volume (I50). We concluded that there was no significant difference between the irrigation levels in the aspect of total polyphenol and dry matter, but there was a decrease in fibre content. Yield was increased by 19.6% with irrigation in 2011 and by 4.44% in 2012. The effect of heat stress is closely related to harvest time. In our study we proved that more heat stress resulted in more total polyphenol content in eggplant, the equation describing this relation is y=39.322+0.501x. Heat stress also stimulated dry matter and fibre content, and this influence was also significant.
    Full-text · Article · Jan 2015 · Applied Ecology and Environmental Research