Isoflavaspidic Acid PB Extracted from Dryopteris fragrans (L.) Schott Inhibits Trichophyton rubrum Growth via Membrane Permeability Alternation and Ergosterol Biosynthesis Disruption

Table 3

Effect of isoflavaspidic acid PB and terbinafine on ergosterol content of T. rubrum.

Group	Dosage (μg/mL)	Ergosterol content (μg/g)	Decrease rate of ergosterol content (%)
Control	—		—
TBF	0.0625		41.21
PB	10		9.58
PB	20		15.31
PB	40		76.24

MIC: minimum inhibitory concentration; TBF: terbinafine; PB: isoflavaspidic acid PB. and versus the control group.