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

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

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
  1. 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