Characterization of Jamaican Delonix regia and Cassia fistula Seed Extracts

Table 6

FTIR spectroscopic data of seed samples of D. regia and C. fistula.

Functionality	D. regia; cm^−1	C. fistula; cm^−1
C-O-C (ether functionality, starch)	995.69	1032.92, 1047.46
N-H bending (secondary amide)	1238.54	1243.64
C=O bending vibration (primary amide)	1399.98	1402.21
C-H vibration (bending deformation)	1456.76	1455.10
N-H bending (amide II)	1542.60	1539.80
C=O (amide I)	1645.96	1644.30
C=O stretching vibrations (lipids)	1742.63	1745.18
CH stretching vibrations (Symmetric & asymmetric)	2852.90, 2922.57	2857.90, 2926.49
N-H stretching vibration (amide) & OH stretching vibrations (starch)	3270.37	3285.75