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Table 1 Inhibition concentration (μg/ml) of the saponin extract on 50 % bacterial growth and biofilm formation of Escherichia coli and Staphylococcus aureus

From: The camelliagenin from defatted seeds of Camellia oleifera as antibiotic substitute to treat chicken against infection of Escherichia coli and Staphylococcus aureus

Groups E. coli S. aureus
  Growth Biofilm Growth Biofilm
Amo 72.6 ± 7.9 72.8 ± 9.6 138.6 ± 11.0 129.8 ± 10.5
Sap 50.2 ± 5.7a 43.6 ± 4.2a 79.6 ± 9.1a 70.2 ± 10.2a
Sap : Amo (1:1) 30.4 ± 6.5a,b 22.8 ± 5.2a,b 59.0 ± 9.6a,b 52.4 ± 8.0a,b
Sap : Amo (5:1) 23.4 ± 5.6a,b 18.6 ± 5.7a,b 43.2 ± 5.9a,b 39.2 ± 3.5a,b
Sap : Amo (10:1) 21.6 ± 5.1a,b 15.6 ± 3.5a,b 35.2 ± 4.5a,b 30.2 ± 7.0a,b
Ery 69.2 ± 6.3 65.6 ± 10.5 126.2 ± 6.7 122.8 ± 8.3
Sap : Ery (1:1) 28.2 ± 5.2b,c 26.8 ± 6.8b,c 51.6 ± 8.0b,c 44.4 ± 6.1b,c
Sap : Ery (5:1) 24.4 ± 4.7b,c 19.2 ± 4.8b,c 35.4 ± 5.3b,c 28.6 ± 6.3b,c
Sap : Ery (10:1) 13.4 ± 3.9b,c 12.8 ± 5.1b,c 27.6 ± 5.7b,c 22.8 ± 6.2b,c
  1. Data were presented as mean ± standard deviation (n = 5)
  2. Amo amoxicillin, Sap saponin, Ery erythromycin
  3. a p < 0.01, compared with amoxicillin
  4. b p < 0.01, compared with the saponin
  5. c p < 0.01, compared with erythromycin