From: Combining phospholipases and a liquid lipase for one-step biodiesel production using crude oils
Pattern | Variables | Response | ||
---|---|---|---|---|
X1 (acid) | NaOH (eqv) | Extra NaOH (ppm) | FAMEs (%) | |
212 | Phosphoric acid | 1 | 10 | 84.3 |
132 | Citric acid | 2 | 10 | 67.8 |
222 | Phosphoric acid | 1.5 | 10 | 83.9 |
131 | Citric acid | 2 | 0 | 67.1 |
232 | Phosphoric acid | 2 | 10 | 84.7 |
211 | Phosphoric acid | 1 | 0 | 78.8 |
231 | Phosphoric acid | 2 | 0 | 77.6 |
112 | Citric acid | 1 | 10 | 67.0 |
121 | Citric acid | 1.5 | 0 | 77.3 |
221 | Phosphoric acid | 1.5 | 0 | 79.5 |
122 | Citric acid | 1.5 | 10 | 53.6 |
213 | Phosphoric acid | 1 | 20 | 91.1 |
113 | Citric acid | 1 | 20 | 51.3 |
111 | Citric acid | 1 | 0 | 43.5 |
133 | Citric acid | 2 | 20 | 71.1 |
123 | Citric acid | 1.5 | 20 | 82.2 |
223 | Phosphoric acid | 1.5 | 20 | 85.6 |
233 | Phosphoric acid | 2 | 20 | 79.5 |