Fig. 1

Production trend of exo-polygalacturonase titer (○) and biomass (∆) in submerged (−) and solid-state (…) fermentation of P. ostreatus for 7 days, with the varying initial level of carbon substrate (pomelo peel powder) in the culture medium. Data presented were the mean value of 3 sets of identical experiments (standard deviation was within ±7%)