Abstract

Tea is extracted from the leaves of Camellia sinenesis. Methanoic extract of black tea samples diluted in ethanol has been shown to enhance antibacterial activity against Streptococcus mutans in combination with Chloramphenicol, Levofloxacin and Gentamycin. This study investigated the influence of boiled water green tea extract on the effectiveness of Penicillin G against the Bacillus subtilis bacterium. Using a range of dilutions of green tea solution, a positive relationship (p<0.001) was found between the relative green tea concentration and the area of inhibition.