Antimicrobial effect of an aqueous extract of Potentilla erecta rhizome
2014
Synowiec, Alicja | Gniewosz, Małgorzata | Bączek, Katarzyna | Przybył, Jarosław L.
Potentilla erecta is a therapeutic plant used in folk medicine to treat inflammatory states, wounds and diseases of the alimentary tract. The results of the study reveal the effects of an aqueous extract of P. erecta rhizome on certain microorganisms occurring in food. The main components of the extract were catechins. The extract was shown to display an inhibiting effect against Gram-positive bacteria such as Staphylococcus aureus ATCC 25923 and Bacillus subtilis ATCC 6633, as well as against yeast such as Candida lipolitica KKP 322 and Hansenula anomala R 26. The extract did inhibit the growth of Gram-negative bacteria, however, no inhibiting effects were observed on moulds in the studied range of concentrations, i.e. 0.13 to 64 mg dry matter/ml.
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