. 2022 Aug 21;11(8):1623. doi: 10.3390/antiox11081623

Table 5.

FT-IR frequency range and functional groups are present in the extracts of UD, MC, and MK.

S. No.	Frequency Range (cm⁻¹)			Functional Groups	Phytocompounds Identified
S. No.	UD	MC	MK	Functional Groups	Phytocompounds Identified
1.	3358.28	3327.40	3307.88	H-bonded, OH stretching	Hydroxyl compounds
2.	2923.25	2921.90	2974.04	Asymmetric stretching –CH(CH₂) vibration	Saturated aliphatic Compounds (Lipids)
3.	2853.54	2802.86	2804.74	Symmetric stretching –CH₂(CH₂) vibration	Proteins, lipids
4.	1698.70, 1622.77	1601.79	1611.44	C=O stretching vibration	Ketone compound
5.	1455.85	1404.99	-	C=C-C aromatic ring stretching	Aromatic compound
6.	1399.89	-	1396.51	O-H, alcoholic group	Phenol or tertiary alcohol
7.	-	1271.82	1275.04	CN stretching	Aromatic primary amine
8.	1160.88	1174.09	1140.63	Polymeric OH, C-O stretching	Cyclic ether
9.	1055.84	1074.42, 1043.61	1044.62	Phosphate ion	Phosphate compound
10.	-	-	877.47	p-O-C stretching	Aromatic phosphate
11.	720.06	620.82	659.68	C-Cl stretching	Aliphatic chloro compound