Research Article
Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics
Table 2
D-optimal design arrangement and responses for MEOA.
| Run no. | H2O2 (X1) | Catalysta (X2) | Timeb (X3) | Y1, yield (%) | Y2, OOC (%) | RCO (%) | Y3, IV (mg/g) | X (%) | SE |
| 1 | 20 | 80 | 8 | 76.57 | 6.17 | 68.40 | 37.81 | 76.37 | 0.89 | 2 | 17.5 | 80 | 7 | 88.57 | 5.48 | 60.75 | 58.95 | 62.53 | 0.97 | 3 | 17.5 | 100 | 8 | 72.14 | 7.54 | 83.59 | 32.22 | 79.52 | 1.05 | 4 | 20 | 80 | 6 | 72.28 | 6.4 | 70.95 | 40.98 | 73.95 | 0.95 | 5 | 20 | 120 | 7 | 54.71 | 5.94 | 65.85 | 64.32 | 59.12 | 1.11 | 6 | 20 | 120 | 6 | 60.28 | 7.88 | 87.36 | 30.87 | 80.38 | 1.08 | 7 | 15 | 120 | 8 | 73.57 | 5.48 | 60.75 | 53.24 | 66.16 | 0.91 | 8 | 20 | 80 | 7 | 81.42 | 5.37 | 59.53 | 56.32 | 64.20 | 0.92 | 9 | 15 | 100 | 7 | 75.68 | 5.02 | 55.65 | 74.64 | 52.56 | 1.05 | 10 | 18.75 | 100 | 7 | 85.28 | 5.71 | 63.30 | 49.17 | 68.75 | 0.92 | 11 | 20 | 100 | 7 | 81.14 | 6.05 | 67.06 | 42.72 | 72.85 | 0.92 | 12 | 15 | 120 | 6 | 70.78 | 4.57 | 50.66 | 76.48 | 51.39 | 0.98 | 13 | 15 | 100 | 6 | 65.93 | 3.65 | 40.46 | 96.43 | 38.71 | 1.00 | 14 | 15 | 120 | 7 | 82.14 | 4.91 | 54.43 | 66.65 | 57.64 | 0.94 | 15 | 17.5 | 120 | 8 | 59.28 | 6.74 | 74.72 | 36.37 | 76.63 | 0.97 | 16 | 20 | 100 | 6 | 72.85 | 6.51 | 72.17 | 39.76 | 74.73 | 0.90 | 17 | 15 | 80 | 8 | 77.14 | 4.34 | 48.11 | 83.85 | 46.71 | 1.03 | 18 | 17.5 | 100 | 6 | 80.85 | 3.77 | 41.79 | 87.09 | 44.65 | 0.93 |
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Notes: OOC, oxirane oxygen content; RCO, relative percentage conversion to oxirane; IV, iodine value; X, conversion to double bond; SE, oxirane oxygen selectivity.
aCatalyst Novozym 435 (mg).
bMonoepoxidation time (h).
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