Abstract

EVALUATION OF ANTIMICROBIAL SCREENING OF BARKS & LEAVES EXTRACT OF ALBIZIA LEBBECK

Md. Reyad-Ul-Ferdous*, Md. Zahirul Islam Khan, Nawfel Abdullah, Afroja Nuri Chandni, Umme Habiba Keka, Zasharatul Islam, Tazmel Haque.

ABSTRACT

Albizzia lebbeck belonging to the Leguminosae family has been investigated for antimicrobial activities. The powdered stem bark & leaf was extracted with methanol. The concentrated extract was then partitioned with pet-ether, carbon Tetrachloride and chloroform. The pet-ether, carbon tetrachloride and chloroform soluble fractions of the crude methanolic extract of this plant were subjected to microbiological investigation by the disc diffusion method. The results compared with a standard Antibiotic, kanamycin. The pet-ether and chloroform soluble fractions showed moderate to strong antimicrobial activity having the zone of inhibition range from 8.66±0.4mm to 10.66±1.24mm and 8.5±0.81mm to 10.66 ±1.2mm respectively, whereas mild to moderate inhibitory activity was found by carbon tetrachloride fractions and methanol soluble fraction having the zone of inhibition range from 8.33±0.47mm to 10±0.51mm and 8.66±0.1.2mm to 9.66±0.94mm respectively. Aqueous soluble fraction showed no antimicrobial activity against the tested microorganism.

Keywords: Albizzia lebbeck; antimicrobial activity.