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Relative amount of curcumin to CD on the base of IR intensity ratio of two characteristic bonds (A (1516 cm−1)/A (1027 cm−1)) and molar ratio of the complexes determined from NMR.
| Sample | IR: Relative Amount of curc/C-O-C bonds (A (1516 cm−1)/A (1027 cm−1)) | NMR: |
|---|---|---|
| HP-α-CD | 0.12 | 0.027 |
| HP-β-CD | 0.06 | 0.007 |
| HP-γ-CD | 2.44 | 0.402 |
| poly-α-CD | 0.50 | 0.093 |
| poly-β-CD | 0.14 | 0.088 |
| poly-γ-CD | 1.39 | 0.179 |
