Cellulase and Xylanase Production by Penicillium echinulatum in Submerged Media Containing Cellulose Amended with Sorbitol

Figure 6

Variation of the pH values in the submerged cultures of Penicillium echinulatum 9A02S1 in media containing different concentrations of sorbitol and supplemented with cellulose after 12 h and 36 h of cultivation. The legend shows the concentration values of sorbitol and cellulose (% w/v), and the brackets indicate the times at which the cellulose was added to the cultivation.