PJB-2018-1096
Antimicrobial and phytochemical evaluation of medicinally important Ziziphus mauritiana var. spontanea and Oenothera bienni
Ambrin
Abstract
The present study investigates antimicrobial activities of different solvent extracted samples of Ziziphus mauritiana var spontanea and Oenothera biennis against different microbes. Ethyl acetate extract of Ziziphusmauritiana var. spontanea measured the highest zone of inhibition (13 mm) against Staphylococcus epidermidis. The ethanolic extract of Ziziphusmauritiana showed maximum antibacterial potential (14mm) against Escherichia coli and Salmonella typhi. The MIC values of ethyl acetate extract of Ziziphus mauritiana var. spontanea were the lowest (2µg/ml) for Staphylococcus aureus, Staphylococcus epidermidis and Klebsiella pneumonia. Likewise, the MIC values of ethanolic extract were the lowest (2 µg/ml) for Shigella flexneri and Staphylococcus aureus. The ethyl acetate extract of Oenothera biennis showed the highest zone of inhibition (17mm) against Klebsiella pneumonia. The antibacterial activity of ethanolic extract of Oenothera biennis revealed the highest zone of inhibition (15mm) against Pseudomonas aeruginosa. The MIC values of ethyl acetate extract of Oenothera biennis were the lowest (2 µg/ml) for Staphylococcus epidermidis, Staphylococcus aureus and Salmonella typhi and the MIC values of ethanolic extract were lowest (2 µg/ml) for Staphylococcus epidermidis and Shigella flexneri. The ethyl acetate extract of Ziziphus mauritiana var. Spontanea showed good antifungal activity (16mm) against Aspergillus niger. Similarly, the ethanolic extract of Ziziphus mauritiana Var. spontanea measured the highest antifungal activity (14 mm) against Penicillium notatum. The MIC value of ethyl acetate extract of Z. mauritiana was lowest for Aspergillus fumigatus whereas the MIC value of ethanolic extract of Z. mauritiana was lowest for Aspergillus niger. The ethyl acetate extract of Oenothra biennis revealed maximum antifungal activity (15mm) against Aspergillus niger. Similarly, the ethanolic extract of Oenothera biennis showed highest antifungal activity (16 mm) against Aspergillus flavus, Aspergillus fumigates. The MIC value of ethyl acetate extract of O. biennis was lowest for Fusarium solanum whereas the MIC value of ethanolic extract of O. biennis was lowest for Penicillium notatum. Phytochemical screening of Ziziphus mauritiana var. spontanea and Oenothera biennis revealed the presence of amino acids, reducing sugar, proteins, triterpenoids, gums and mucilages, fats, steroids, phenols and phytosterol
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