title: Antimicrobial and antifungal activities of the extracts and essential oils of Bidens tripartita.
abstract: The aim of this study was to determine the antibacterial and antifungal properties of the extracts, subextracts and essential oils of Bidens tripartita flowers and herbs. In the study, twelve extracts and two essential oils were investigated for activity against different Gram-positive Bacillus subtilis, Micrococcus luteus, Staphylococcus aureus, Gram-negative bacteria Escherichia coli, E. coli (beta-laktamase+), Klebsiella pneumoniae (ESBL+), Pseudomonas aeruginosa and some fungal organisms Candida albicans, C. parapsilosis, Aspergillus fumigatus, A. terreus using a broth microdilution and disc diffusion methods. The results obtained indicate antimicrobial activity of the tested extracts (except butanolic extracts), which however did not inhibit the growth of fungi used in this study. Bacteriostatic effect of both essential oils is insignificant, but they have strong antifungal activity. These results support the use of B. tripartita to treat a microbial infections and it is indicated as an antimicrobial and antifungal agent, which may act as pharmaceuticals and preservatives.
authors.affiliation: Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Białystok, Białystok, Poland.
authors.forename: Monika
authors.initials: M
authors.lastname: Tomczykowa
authors.forename: Michał
authors.initials: M
authors.lastname: Tomczyk
authors.forename: Piotr
authors.initials: P
authors.lastname: Jakoniuk
authors.forename: Elzbieta
authors.initials: E
authors.lastname: Tryniszewska
mesh_terms: D000890:Anti-Infective Agents / Q000494:pharmacology*; D000935:Antifungal Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D031176:Bidens / Q000737:chemistry*; D005658:Fungi / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000494:pharmacology*; D010936:Plant Extracts / Q000494:pharmacology; D010938:Plant Oils / Q000494:pharmacology
chemical_list: D000890:Anti-Infective Agents; D000935:Antifungal Agents; D009822:Oils, Volatile; D010936:Plant Extracts; D010938:Plant Oils