Antimicrobial effects of ethanolic extracts from Cuscuta reflexa Roxb. (Convolvulaceae).

Manirujjaman, M., Suchana, S., Collet, T., Nawshin, L.N., & Chowdhury, M.A.R. (2016) Antimicrobial effects of ethanolic extracts from Cuscuta reflexa Roxb. (Convolvulaceae). International Journal of Pharmacognosy and Phytochemical Research, 8(6), pp. 930-932.

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Abstract

Ethanolic whole plant extracts obtained from Cuscuta reflexa Roxb were screened against Gram positive (Bacillus subtilis and Staphylococcus aureus) and Gram negative (Escherichia coli and Salmonella typhi) bacteria to evaluate their antimicrobial activity. Of the four concentrations of plant extract tested (200 µg/mL, 300 µg/mL, 400 µg/mL or 500 µg/mL), 500 µg/mL elicited the greatest zones of bacterial inhibition across three of the bacteria. In contrast, the growth of Salmonella typhi was not halted regardless of extract concentration. At 200 µg/mL, only the growth of E. coli was inhibited. Overall, although the greatest antimicrobial activity was demonstrated to be against E. coli at a concentration of 500 µg/mL (24.6±0.24), upon comparison to the other bacteria, both B. cereus and S. aureus educed similar zones of inhibition upon comparison to their positive antibiotic control.

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ID Code: 95495
Item Type: Journal Article
Refereed: Yes
Keywords: antimicrobial activity, Cuscuta reflexa Roxb., agar well diffusion, Staphylococcus aureus, Bacillus cereus, Escherichia coli, Salmonella typhi
ISSN: 0975-4873
Divisions: Current > Schools > School of Clinical Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Deposited On: 11 May 2016 22:40
Last Modified: 29 Jul 2016 04:35

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