Pure cellulose as well as cellulosic wastes can be hydrolyzed by an enzyme complex generally named cellulase, of which two main sources are known, the microfungi Trichoderma viride and Aspergillus niger. The complex exhibits three major activities: an endo- and an exo-glucanase (C//1 and C//x) synergistically acting in the breakdown of both crystalline and amorphous regions of the cellulose chain, and a third component, beta -glucosidase, which catalyzes the hydrolysis of cellobiose to glucose. At present, however, various constraints still limit the enzymatic saccharification of cellulose. In the present study, our attention has been focused on thermal stability and on glucose inhibition.
Enzyme stability and glucose inhibition in cellulose saccharification
CANTARELLA, Maria;GALLIFUOCO A;
1984-01-01
Abstract
Pure cellulose as well as cellulosic wastes can be hydrolyzed by an enzyme complex generally named cellulase, of which two main sources are known, the microfungi Trichoderma viride and Aspergillus niger. The complex exhibits three major activities: an endo- and an exo-glucanase (C//1 and C//x) synergistically acting in the breakdown of both crystalline and amorphous regions of the cellulose chain, and a third component, beta -glucosidase, which catalyzes the hydrolysis of cellobiose to glucose. At present, however, various constraints still limit the enzymatic saccharification of cellulose. In the present study, our attention has been focused on thermal stability and on glucose inhibition.Pubblicazioni consigliate
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