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 |
|
|
