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Table 3 The total phenolic content, antioxidant potential of dried seedcake extract preparation from wild type and modified flax plants and effect on reference bacterial strains

From: Bactericidal activities of GM flax seedcake extract on pathogenic bacteria clinical strains

  WT seedcakes dried extract W92 seedcakes dried extract
  50 mgDW/ml preparation 50 mgDW/ml preparation 30 mgDW/ml preparation 10 mg/ml preparation
Total phenolics content [mg/ml] 24.26 ± 0.03 31.59 ± 0.05 18.45 ± 0.03 6.03 ± 0.06
IC-50 [μl]* 27.5 ± 0.04 10.56 ± 0.03 18.15 ± 0.03 26.36 ± 0.04
K. pneumoniae ATCC 700603** 64% ± 3.03 100% ± 0.00 98% ± 0.01 72% ± 0.93
S. aureus ATCC 29213** 52% ± 2.01 100% ± 0.01 93% ± 1.03 60% ± 0.63
P. aeruginosa ATCC 27853** 46% ± 3.50 100% ± 0.00 100% ± 0.02 85% ± 1.05
E. coli ATCC 25922** 75% ± 1.89 100% ± 0.23 87% ± 1.83 48% ± 1.82
  1. The antimicrobial activity of seedcake preparations were tested on reference bacterial strains. The low concentration of seedcake preparation from control plants (10 mg/ml and 30 mg/ml) do not show any antibacterial properties (data not shown).
  2. *The antioxidant potential (IC50) was defined as the amount (μl) of preparation that inhibits luminol chemiluminescence by 50%. **The presented results are the inhibition rate compared to the untreated bacteria (% of growth inhibition) after 6 h treatment. The results are the mean values ± SD (n = 5).