“…To test the effect of treatment duration, the T. versicolor mycelial pellets were exposed to one ultrasonic treatment for a given time period (1, 3, 5, 7 and 10 min) after they had been in culture for either 2 days or 5 days. To test the effect of repeated exposure, the T. versicolor mycelial pellets were repeatedly exposed to a 5 min ultrasonic treatment at different intervals (6,12,24,48 and 72 h) after they had been in culture for either 2 days or 5 days. Following the ultrasonic treatments, the flasks with the mycelial pellets were returned to the shaker for continued cultivation.…”