New enzyme discovery could revolutionize biofuel production from cellulose.
Cellulases from Trichoderma viride were studied after being induced by Avicel. The enzymes were purified and tested for their activity on cotton, CMC, and β-glucosidase. The cellulases had optimal pH and temperature ranges for their activities. Cellulases induced by Avicel had higher cotton activity compared to those induced by CMC and cellobiose. A low molecular weight CMCase activity was identified, capable of degrading CMC specifically. Trichoderma cellulases induced by Avicel could break down cotton and CMC into glucose without the need for β-glucosidase.