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Table 3 Confirmation of the predicted optimum condition with the experimental results

From: Alkaline organosolv pretreatment of different sorghum stem parts for enhancing the total reducing sugar yields and p-coumaric acid release

NaOH (%) Ethanol (%) Temperature (°C) Time (h) Released pCA (%) Recovered xylan in residues (%)
Predicted values Actual values Predicted values Actual values
Pith
 1.63 70 66.0 3.18 94.59 94.07 77.28 76.85
 1.72 70 63.4 2.29 94.00 94.22 76.20 76.01
 1.51 70 65.2 3.30 92.63 91.76 77.69 76.32
Rind
 1.90 70 69.8 1.00 98.99 97.24 88.73 88.46
 1.80 70 62.1 1.50 97.28 97.05 87.56 86.47
 1.55 70 68.8 1.95 96.00 94.74 86.79 84.99
Whole stem
 1.46 70 70.0 2.19 95.13 95.05 85.35 85.04
 1.52 70 70.0 2.00 95.90 94.77 83.68 82.96
 1.39 70 70.0 3.00 92.07 92.31 82.85 82.12