Fig. 4

Disruptive activity of purified recombinant ThSwo on Avicel. a, c Scanning electron micrographs of Avicel in the absence or b, d presence of ThSwo. The samples were incubated in 50 mM sodium citrate buffer, pH 4.8, containing approximately 35 µg of purified recombinant ThSwo at 45 °C for 72 h. Control experiments without ThSwo or using BSA were also performed under the same conditions as mentioned above. a, b: 1000×; c: 4500×; and d: 4000×