title: Tannins with antimutagenic properties in the herb of Alchemilla species and Potentilla anserina.
abstract: Self-prepared ethanolic and aqueous extracts and commercial tinctures derived from the herb of Alchemilla spec. and Potentilla anserina were compared for their antimutagenic potency using 2-nitrofluorene as standard mutagen. All samples studied showed weak or moderate activities. The total amount of tannins did not correlate well with the degree of inhibition. However, tannin-free extracts did not display any inhibition of mutagenicity. Therefore, the tannin fraction participates at least partly in the antimutagenicity of the extracts examined.
authors.affiliation: Institut für Botanik und Pharmazeutische Biologie der Universität Erlangen-Nürnberg, Staudtstrasse 5, D-91058 Erlangen, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Schimmer
authors.forename: M
authors.initials: M
authors.lastname: Lindenbaum