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Table 2 Minimum inhibitory concentrations (MIC) and/or minimum bactericial concentrations (MBC) of fruit body extracts

From: Fungal strain matters: colony growth and bioactivity of the European medicinal polypores Fomes fomentarius, Fomitopsis pinicola and Piptoporus betulinus

   B. subtilis S. aureus A. flav. A. fum. A. orc. C. kru.
Species Voucher IB MIC MBC MIC MBC MIC MIC MIC MIC
F. fom. 20130011 - - 500* - - - 500 -
F. fom. 20130016 - - 250* - - 125 250 -
F. fom. 20130019 - - - - - n.t. - -
F. fom. 20130022 - - 250* - - 125 500 -
F. fom. 20130033 - - 250* - - 125 250 1000*
F. pin. 20130010 63* 125 500* - - 125 500 -
F. pin. 20130013 125* - 500* 500 - 125 500 -
F. pin. 20130015 63* - 31* 125* - 125 1000 -
F. pin. 20130018 63* 125 31* 31* - 500 - -
F. pin. 20130021 125* 500 63* 250* - 500 x -
F. pin. 20130024 31* 31 31* 31* - 500 500 -
F. pin. 20130026 63* 63 31* 63* 1000 500 500 -
F. pin. 20130030 31* 31 63* 63 1000 500 500 -
F. pin. 20130034 31* 63 63* 125 - x 500 n.t.
F. pin. 20130037 63* 500 63* 125 1000 500 500 -
F. pin. 20130040 31* 31 63* 125 x 125 1000 -
F. pin. 20130042 63* 63 125* 250 - x 500 -
F. pin. 20130053 31* 31 63* 250 - x - -
P. bet. 20130029 63* 500 31* 31* - x 500 n.t.
P. bet. 20130039 63* 500 31* 31* - x 1000 n.t.
  1. Minimum inhibitory concentrations (MIC) of fruit body extracts against bacteria (Bacillus subtilis and Staphylococcus aureus), a selection of filamentous fungi, and the yeast Candida kruseii (C. kru.) (μg mL−1). Minimum bactericial concentrations (MBC) are provided for bacteria. Minus (−): no inhibition observed using the highest test concentration of 1000 μg mL−1; asterisks (*): the inhibitory effect was confirmed by 3 replicates; x: alterations in growth morphology (branching); n.t.: not tested. The results for the two gram-negative bacteria tested (E. coli, P. aeruginosa) are not shown in the table, because none of the tested extracts showed an inhibitory effect at ≤ 1000 μg mL−1. For Trichophyton sp., already the solvent showed an inhibitory effect at a concentration of 4.8 % EtOH. A. flav. = Aspergillus flavus, A. fum. = Aspergillus fumigatus, A. orc. = Absidia orchidis.