| abstract |
The invention discloses the use of the leaves or extracts thereof in preparing antibacterial agents. It has been proved by experiments that the water extract of Chrysanthemum chinensis is effective against Escherichia coli, Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus saprophyticus, Streptococcus pneumoniae, alpha-hemolytic streptococcus, beta-hemolytic streptococcus, and Lactobacillus acidophilus. It has a killing effect, especially on Escherichia coli ATCC25922, Escherichia coli CMCC44155, Streptococcus pneumoniae ATCC6303, A-hemolytic streptococcus, and beta-hemolytic streptococcus multi-resistant bacteria. Its killing ability increased with the concentration, and its bactericidal ability was significantly stronger than that of the water extract of the control product Pu'er tea. Therefore, the leaves or the extracts thereof have good application prospects in the preparation of antibacterial agents. |