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Fig. 2 | Biotechnology for Biofuels

Fig. 2

From: Rapid estimation of sugar release from winter wheat straw during bioethanol production using FTIR-photoacoustic spectroscopy

Fig. 2

Measured vs. predicted values of sugar release. Correlation between reference (measured) and predicted sugar release (in g g−1 dm) in terms of total sugar (glucose plus xylose), glucose and xylose (cross-validation results; black dots, solid regression line, external validation results: white dots, dashed regression line). (R 2 coefficient of determination, RMSE root-mean-square value, CV cross-validation data set, EV external validation data set, F number of factors used in calibration)

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