. . . "Each flask was inoculated with about 10 6 spores from a YPG agar slant previous?? ly inoculated with IMI CC No. 346564.The flasks were incubated at 25??C for 7 - 14 days after which time the active compound was extracted with an organic solvent, e.g. ethanol, methanol, ethylacetate and acetone." .