Table 1. Rate constanta of the Enzymatic Esterification for 1,3-Diolein Preparation.
solvent | t-butanol | t-amyl alcohol | toluene | hexamethylene | n-hexane |
---|---|---|---|---|---|
logP | 0.80 | 1.15 | 2.50 | 3.20 | 3.50 |
k1 | 0.1212 | 0.1636 | 0.3955 | 0.4854 | 0.5190 |
k2 | 0.0500 | 0.0700 | 0.0797 | 0.0831 | 0.0880 |
k3 | 0.0006 | 0.0015 | 0.0066 | 0.0097 | 0.0160 |
k4 | 0.0013 | 0.0049 | 0.0068 | 0.0074 | 0.0147 |
k5 | 0.2531 | 0.3286 | 0.8032 | 0.9001 | 1.1610 |
k6 | 0.0215 | 0.0380 | 0.0400 | 0.0411 | 0.0470 |
k7 | 0.0006 | 0.0012 | 0.0037 | 0.0050 | 0.0152 |
k8 | 0.0008 | 0.0010 | 0.0018 | 0.0024 | 0.0032 |
k9 | 0.0800 | 0.1003 | 0.2310 | 0.2503 | 0.4515 |
k10 | 0.0070 | 0.0080 | 0.0085 | 0.0090 | 0.0100 |
k11 | 0.0133 | 0.0146 | 0.0290 | 0.0800 | 0.2012 |
k12 | 0.0644 | 0.0797 | 0.4010 | 0.9580 | 1.1405 |
k13 | 0.0206 | 0.0283 | 0.1010 | 0.2490 | 0.4068 |
k14 | 0.0408 | 0.0500 | 0.1857 | 0.5320 | 1.0207 |
k1/k3 | 202.0000 | 109.0667 | 59.9242 | 50.0412 | 32.4375 |
Unit of rate constant: k1–k10 (L·mol–1·h–1), k11–k14 (h–1).