Research Article
Optimization of Two-Step Acid-Catalyzed Hydrolysis of Oil Palm Empty Fruit Bunch for High Sugar Concentration in Hydrolysate
Table 1
Estimated kinetic parameters of biphasic model at different temperatures and acid concentrations.
| | | | (min−1) | (min−1) | (min−1) | |
| | Temperature (°C) | 120 | 6.92 × 10−2 | 7.20 × 10−3 | 1.90 × 10−3 | 0.990 | | 130 | 1.89 × 10−1 | 1.27 × 10−2 | 2.70 × 10−3 | 0.998 | | 140 | 2.58 × 10−1 | 3.16 × 10−2 | 5.70 × 10−3 | 0.999 |
| | Acid concentration (w/v) | 1.5% H2SO4 + 0.6% H3PO4 | 5.17 × 10−2 | 6.70 × 10−3 | 2.60 × 10−3 | 0.981 | | 2% H2SO4 + 0.8% H3PO4 | 1.89 × 10−1 | 1.27 × 10−2 | 2.70 × 10−3 | 0.998 | | 2.5% H2SO4 + 1% H3PO4 | 7.56 × 10−1 | 3.45 × 10−2 | 2.90 × 10−3 | 0.995 |
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