Fig. 4From: Rapid estimation of sugar release from winter wheat straw during bioethanol production using FTIR-photoacoustic spectroscopyXylose vs. glucose release after the pretreatment and enzymatic hydrolysis. Correlation coefficients (r) of the measured glucose and xylose yields (in g g−1 dm) in the full calibration set (713 samples) and the three smaller subsets (of 237 samples each). Triangles subset 1, circles subset 2, squares subset 3Back to article page