Research Article
Characterization of Jamaican Delonix regia and Cassia fistula Seed Extracts
Table 4
1H Nuclear magnetic resonance spectroscopy data of seed lipid extracts.
| Proton | Functionality | D. regia δ (ppm) | C. fistula δ (ppm) |
| CH3 | Terminal methyl | 0.86 | 0.81 | CH2 | Methylene | 1.28 | 1.23 | CH2-CH2-COO | All acyl chains | 1.59 | 1.55 | CH2-CH=CH | All unsaturated fatty acids | 2.01 | 1.98 | CH2-COO | All acyl chains | 2.27 | 2.24 | C=C-CH2-C=C | Protons attached to bis allylic carbon | 2.73 | 2.70 | CH2O(α) | Glycerol (triglycerides) | 4.15 | 4.08 | CH2O(α) | Glycerol (triglycerides) | 4.25 | 4.23 | CHO(β) | Glycerol (triglycerides) | 5.26 | 5.20 | CH=CH | Olefinic protons | 5.34 | 5.28 |
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