African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12254

Full Length Research Paper

Antibacterial activity of six indigenous Indian plants: Acacia nilotica (Fabaceae), Albizia saman (Fabaceae), Azadirachta indica (Meliaceae), Carica papaya (Caricaceae), Cymbopogon citratus (Poaceae) and Mangifera indica (Anacardiaceae)

Aditi Singh
  • Aditi Singh
  • Amity Institute of Biotechnology, Amity University, Uttar Pradesh, Lucknow Campus, Malhaur, Gomti Nagar Extension, Lucknow- 226028, India.
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Parul Tripathi
  • Parul Tripathi
  • Amity Institute of Biotechnology, Amity University, Uttar Pradesh, Lucknow Campus, Malhaur, Gomti Nagar Extension, Lucknow- 226028, India.
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Apeksha Srivastava
  • Apeksha Srivastava
  • Amity Institute of Biotechnology, Amity University, Uttar Pradesh, Lucknow Campus, Malhaur, Gomti Nagar Extension, Lucknow- 226028, India.
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S. Marzia Ali
  • S. Marzia Ali
  • Amity Institute of Biotechnology, Amity University, Uttar Pradesh, Lucknow Campus, Malhaur, Gomti Nagar Extension, Lucknow- 226028, India.
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Lavie Rekhi
  • Lavie Rekhi
  • Amity Institute of Biotechnology, Amity University, Uttar Pradesh, Lucknow Campus, Malhaur, Gomti Nagar Extension, Lucknow- 226028, India.
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  •  Received: 03 July 2015
  •  Accepted: 30 October 2015
  •  Published: 20 April 2016

Abstract

Plants have been used as major source of active compounds with medicinal importance since human civilization. These naturally occurring pharmacologically active agents have least or no toxicity to the host. The antibacterial activity of extracts (water, acetone and methanol) from six indigenous Indian plants: Acacia nilotica (Fabaceae), Albizia saman (Fabaceae), Azadirachta indica (Meliaceae), Carica papaya (Caricaceae), Cymbopogon citratus (Poaceae) and Mangifera indica (Anacardiaceae) were determined against the pathogenic bacteria (Staphylococcus aureus: ATCC 25923; Escherichia coli: ATCC 25922 and Klebsiella pneumonia: ATCC 700603). The antimicrobial study was carried out by the gel diffusion method and the results show that as compared to aqueous extract, methanolic and acetone extracts were more effective. Of all the studied plants, the methanolic extract of A. saman leaves inhibited the growth of all the three test organisms.

 

Key words: Antibacterial activity, pathogenic bacteria, indigenous plants.