Antibiofilm Activity of Chilean Propolis on Streptococcus mutans Is Influenced by the Year of Collection

Table 4

Antimicrobial activity of polyphenol-rich extracts from Chilean propolis on Streptococcus mutans.

Antimicrobial activity	CEP1	CEP2	CEP3	value
MIC μg mL^−1	0.91 ± 0.59	0.22 ± 0.15	0.39 ± 0.35	0.177
MBC μg mL^−1	1.30 ± 0.44	1.05 ± 0.44	0.91 ± 0.59	0.645

CEP1, CEP2, and CEP3: polyphenol-rich extracts from Chilean propolis collected in 2008, 2010, and 2011, respectively. MIC: minimum inhibitory concentration; MBC: minimum bactericide concentration. Results expressed as mean ± standard deviation. value from ANOVA test.