title: Phytochemical constituents and antibacterial efficacy of the flowers of Peltophorum pterocarpum (DC.) Baker ex Heyne.
abstract: OBJECTIVE
  To investigate the preliminary phytochemistry and antibacterial activity of the flower extract of Peltophorum pterocarpum .
  
  
  METHODS
  Phytochemical analysis was done by using the standard methods given by Harbone. The methanolic flower extract were tested against Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus cereus, Salmonella typhi, Serratia marsecens, Acinetobacter baumannii, Enterobacter sp., Proteus mirabilis, Enterococcus faecalis and Streptococcus pyogenes by the agar disc diffusion method.
  
  
  RESULTS
  Preliminary phytochemical screening of flower extract showed the presence of phenolic compounds, flavonoids, saponins, steroids, tannins, xanthoproteins, carboxylic acids, coumarins and carbohydrates. The flower extract of Peltophorum pterocarpum showed significant activity against four gram positive (Staphylococcus aureus, Bacillus cereus, Enterococcus faecalis and Streptococcus pyogenes) and three gram negative bacteria (Proteus mirabilis, Acinetobacter baumannii and Serratia marsecens), out of 12 pathogenic bacteria studied.
  
  
  CONCLUSIONS
  The findings of the present study confirm the presence of significant antibacterial activity against human pathogens in the flowers of Peltophorum pterocarpum.
authors.affiliation: Centre for Biodiversity and Biotechnology, Department of Botany, N.M. Christian College, Marthandam, Tamilnadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Sukumaran
authors.forename: S
authors.initials: S
authors.lastname: Kiruba
authors.forename: M
authors.initials: M
authors.lastname: Mahesh
authors.forename: S R
authors.initials: SR
authors.lastname: Nisha
authors.forename: Paul Z
authors.initials: PZ
authors.lastname: Miller
authors.forename: C P
authors.initials: CP
authors.lastname: Ben
authors.forename: S
authors.initials: S
authors.lastname: Jeeva
mesh_terms: D000900:Anti-Bacterial Agents / Q000032:analysis* / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D001424:Bacterial Infections / Q000188:drug therapy / Q000382:microbiology; D007887:Fabaceae / Q000737:chemistry*; D035264:Flowers / Q000737:chemistry*; D006801:Humans; D010936:Plant Extracts / Q000032:analysis* / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D010936:Plant Extracts