Cellulolytic Enzymes Production via Solid-State Fermentation: Effect of Pretreatment Methods on Physicochemical Characteristics of Substrate
Figure 2
Effect of different pretreatments on cellulolytic enzyme production in 5 days grown mono and mixed cultures of Trichoderma reesei and Aspergillus oryzae. (a) Filter paper activity. (b) β-glucosidase activity. (c) Endocellulase activity. (d) Xylanase activity. Abbreviations: T. r, T. reesei; A. o, Aspergillus oryzae; mix, 1 : 1 mixture of T. reesei and A. oryzae cultures; native, untreated soybean hulls; steam, steam-pretreated soybean hulls; HCl, hydrochloricacid-pretreated soybean hulls; H2SO4, sulfuric-acid-pretreated soybean hulls; NaOH, sodiumhydroxide-pretreated soybean hulls. Refer to text for more details on conditions of pretreatments. Data are expressed as mean ± SE, .
