In vitro antibacterial effect of Withania somnifera root extract on Escherichia coli

Aim: The aim was to investigate antibacterial activity of Withania somnifera (Ashwagandha), an Indian traditional medicinal plant against Escherichia coli O78, a pathogenic strain. Materials and Methods: Two-fold serial dilutions of 20% aqueous W. somnifera root (WSR) extract were inoculated with E...

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Main Authors: Mamta Kumari, R. P. Gupta
Format: Article
Language:English
Published: Veterinary World 2015-01-01
Series:Veterinary World
Subjects:
Online Access:http://www.veterinaryworld.org/Vol.8/January-2015/12.pdf
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author Mamta Kumari
R. P. Gupta
author_facet Mamta Kumari
R. P. Gupta
author_sort Mamta Kumari
collection DOAJ
description Aim: The aim was to investigate antibacterial activity of Withania somnifera (Ashwagandha), an Indian traditional medicinal plant against Escherichia coli O78, a pathogenic strain. Materials and Methods: Two-fold serial dilutions of 20% aqueous W. somnifera root (WSR) extract were inoculated with E. coli O78 @ 1x107 colony forming units grown in nutrient broth. Following inoculation, turbidity optical density was measured by spectrophotometer at 600 nm in all the tubes at 0, 2, 4, 6 and 8 h of incubation at 37°C. Result: The results revealed that the maximum inhibition of bacterial growth was observed at 1:8 dilution of WSR extract. The highest dilution of the extract that showed inhibited growth of the test organism when compared with control was 1:16. Therefore, the minimum inhibitory concentration of aqueous extract of WSR is 1:16. Conclusion: It is concluded that WSR possessed good antibacterial activity, confirming the great potential of bioactive compounds and its rationalizing use in health care.
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spelling doaj.art-555ca38824e9470f949d444bba8cfe032022-12-21T21:09:36ZengVeterinary WorldVeterinary World0972-89880972-89882015-01-0181576010.14202/vetworld.2015.57-60In vitro antibacterial effect of Withania somnifera root extract on Escherichia coliMamta Kumari 0R. P. Gupta1Department of Veterinary Pathology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India; mamtabijarnia@gmail.comDepartment of Veterinary Pathology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India; rpgupta2007@yahoo.co.inAim: The aim was to investigate antibacterial activity of Withania somnifera (Ashwagandha), an Indian traditional medicinal plant against Escherichia coli O78, a pathogenic strain. Materials and Methods: Two-fold serial dilutions of 20% aqueous W. somnifera root (WSR) extract were inoculated with E. coli O78 @ 1x107 colony forming units grown in nutrient broth. Following inoculation, turbidity optical density was measured by spectrophotometer at 600 nm in all the tubes at 0, 2, 4, 6 and 8 h of incubation at 37°C. Result: The results revealed that the maximum inhibition of bacterial growth was observed at 1:8 dilution of WSR extract. The highest dilution of the extract that showed inhibited growth of the test organism when compared with control was 1:16. Therefore, the minimum inhibitory concentration of aqueous extract of WSR is 1:16. Conclusion: It is concluded that WSR possessed good antibacterial activity, confirming the great potential of bioactive compounds and its rationalizing use in health care.http://www.veterinaryworld.org/Vol.8/January-2015/12.pdfantibacterialAshwagandhaWithania somniferaroot extract
spellingShingle Mamta Kumari
R. P. Gupta
In vitro antibacterial effect of Withania somnifera root extract on Escherichia coli
Veterinary World
antibacterial
Ashwagandha
Withania somnifera
root extract
title In vitro antibacterial effect of Withania somnifera root extract on Escherichia coli
title_full In vitro antibacterial effect of Withania somnifera root extract on Escherichia coli
title_fullStr In vitro antibacterial effect of Withania somnifera root extract on Escherichia coli
title_full_unstemmed In vitro antibacterial effect of Withania somnifera root extract on Escherichia coli
title_short In vitro antibacterial effect of Withania somnifera root extract on Escherichia coli
title_sort in vitro antibacterial effect of withania somnifera root extract on escherichia coli
topic antibacterial
Ashwagandha
Withania somnifera
root extract
url http://www.veterinaryworld.org/Vol.8/January-2015/12.pdf
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