International Journal of Phytomedicine and Phytotherapy
Table 3 Characteristic FTIR absorption frequency of organic functional group in crude ethanol extract of Cassava peel biogas slurry
S/N | Class of compounds | Type of vibration | Absorption, cm− 1 | Intensity | Chemical Formula |
|---|---|---|---|---|---|
1 | Hydroxyl group | Stretch | 3416.05 | Single bond | O-H |
2 | Alkane | Stretch | 2985.91 | Single bond | C-H |
3 | Alkane | Stretch | 2937.68 | Single bond | C-H |
4 | Carboxyl group | Stretch | 1645.33 | Double bond | C = O |
5 | Carboxyl group | Stretch | 1616.4 | Double bond | C = O |