US EPA

1229833 

Journal Article 

Screening of antibacterial activity in the extracts of Clitoria ternatea 

Malabadi, RB; Mulgund, GS; Nataraja, K 

2005 

27 

1 (Mar 2005) 

Hexane, methanol and water extracts of leaf, stem, and roots of white flowered variety of Clitoria ternatea (Linn.) (Fabaceae) used by Indian traditional healers for treating ulcer, eye infections, bronchitis, tuberculosis and/or anti-inflammatory properties were screened for in vitro antibacterial activities. To evaluate antibacterial activity, the disc-diffusion assay was used against several Gram-positive and Gram-negative species. Minimal inhibitory concentration (MIC) values were determined with a microdilution assay. Methanolic extracts showed the highest activity, and no activity was recorded with water extract. Hexane and methanolic extracts of root showed the highest and significant antibacterial activity against both Gram-positive and Gram-negative bacteria. No antibacterial activity was recorded with stem extracts. 

Antibacterial activity; n-Hexane; Gram-negative bacteria; Eye; Medicinal plants; Mycobacterium; Aromatics; Leaves; Bronchitis; Ulcers; Methanol; Infection; Clitoria ternatea; Antiinflammatory agents; Fabaceae; Tuberculosis; Minimum inhibitory concentration; Roots