Thin-layer chromatography analysis of the hydrolysis products from acid-swollen cellulose and Avicel. Abbreviations for y axis: G1, glucose; G2, cellobiose; G3, cellotriose; G4, cellotetraose; and G5, cellopentaose. Lanes: S, mixed-cellooligosaccharide standard; C, control lacking enzyme; Z, CelZ; Y, CelY; and Y + Z, CelY plus CelZ. (A) Acid-swollen cellulose (6-h incubation, 1-μl loading); (B) acid-swollen cellulose (6-h incubation, 2-μl loading); (C) Avicel (48-h incubation, 10-μl loading).