Characterization and evaluation of antibacterial and antiproliferative activities of crude protein extracts isolated from the seed of Ricinus communis in Bangladesh

Table 2 Antibacterial activity of crude protein isolated from the seed of R. communis (V-1 and V-3) at different concentrations

Bacteria	Diameter of zone of inhibition (mm)
	Variety-1				Variety-3				Antibiotic
	50	100	200	400	50	100	200	400	Strep
EC	--	8.9 ± 0.3	11.3 ± 0.4	17.7 ± 0.6	--	9.0 ± 0.8	12.8 ± 0.4	18 ± 0.7	22 ± 0.7
PA	--	9.3 ± 1.1	15.6 ± 0.6	18.8 ± 0.7	9.2 ± 0.6	10 ± 0.8	15.4 ± 0.5	19.5 ± 1.3	25 ± 0.4
EA	--	--	9.1 ± 0.9	11.8 ± 0.5	--	--	10.6 ± 0.6	12 ± 0.8	28 ± 1.4
SA	8.2 ± 0.8	10.4 ± 0.4	15.4 ± 0.6	21.4 ± 0.5	9.8 ± 0.4	12 ± 0.7	16.5 ± 1.6	23.1 ± 0.3	26 ± 0.8

Data represented as averages ± SD (n = 3); --, no measurable zone of inhibition; concentration of protein extract as μg/disc; EC: E. coli; PA: P. aeruginosa; EA: E. aerogenes; SA: S. aureus and Strep: Streptomycin

ISSN: 2662-7671