African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 718

Full Length Research Paper

Antibacterial activity of some selected dye yielding plants in Eastern India

Pijush Kanti Das1, Amal Kumar Mondal1* and Sanjukta Mondal Parui2  
1Plant Taxonomy, Biosystematics and Molecular Taxonomy Laboratory, Department of Botany and Forestry, Vidyasagar University, Midnapore, West Bengal, India. 2Department of Zoology, Lady Brabourne College, P1/2 Suhrawardy Avenue, Kolkata – 700 017, West Bengal, India.
Email: [email protected] ,[email protected], [email protected] .

  •  Accepted: 14 June 2011
  •  Published: 06 September 2011


Acacia catechu (L.) Willd. (Mimosaceae), Pterocarpus marsupium Roxb.(Papilionaceae), Toddalia asiatica (L.) Lamk. (Rutaceae) and Ventilago denticulataWilld. (Rhamnaceae), growing in West Midnapore district of West Bengal, an eastern state of India, yields dyes which showed strong antimicrobial activity against four bacterial strains (Bacillus cereus, Escherichia coli, Klebsiella pneumoniae and Vibrio cholerae). Among the dyes of the four plants tested, Toddalia asiatica showed the highest antimicrobial activity with the inhibition zones ranging from 14 to 16 mm. Thin layer chromatography of the dyes, which were either substantive dyes or adjective type of dyes requiring mordents for fixing to fabrics, showed that most of these pigments were composed of xanthophylls and anthocyanin. The extracts of different plant parts are also used for various medicinal purposes by the local tribal people. The over exploitation of these plants for dyeing and pharmaceutical uses has led to the depletion of these species, particularly P. marsupium and V. denticulata, from this region and immediately demands more focused conservation strategies.


Key words: Acacia catechuPterocarpus marsupiumToddalia asiaticaVentilago denticulata, dye, antibacterial activity, Thin Layer Chromatography (TLC), pigments, IUCN red list, vunerable, biodiversity, conservation, strategies.