Table 1 1H-NMR chemical shifts of different functional groups of thymol, Tween 80 before and after solubilization, respectively.
From: Physical characterization and antioxidant activity of thymol solubilized Tween 80 micelles
Thymol (ppm) | Tween 80 (ppm) | ||||||
|---|---|---|---|---|---|---|---|
Functional group | Before (δ1) | After (δ2) | ∆δ (δ2–δ1) | Functional group | Before (δ3) | After (δ4) | ∆δ (δ4–δ3) |
CH 3 | 1.18 | 1.15 | −0.03 | CH 3 | 0.9 | 0.88 | −0.02 |
CH 3 | 2.26 | 2.18 | −0.08 | CH 2 | 1.3 | 1.29 | −0.01 |
CH | 3.15 | 3.2 | 0.05 | C H 2 CH 2 OCO | 1.6 | 1.51 | −0.09 |
OH | 3.63 | 3.63 | 0 | C H 2 CH=CHC H 2 | 2.03 | 2.01 | −0.02 |
6-H | 6.75 | 6.63 | −0.12 | CH 2 OCO | 2.33 | 2.18 | −0.15 |
4-H | 6.83 | 6.52 | −0.31 | CH 2 | 3.71 | 3.72 | 0.01 |
3-H | 7.22 | 6.91 | −0.31 | OCOCH 2 | 4.25 | 4.15 | −0.1 |
CH = CH | 5.34 | 5.32 | 0 | ||||
