Chitosan-Based Coatings Incorporated with Cinnamon and Tea Extracts to Extend the Fish Fillets Shelf Life: Validation by FTIR Spectroscopy Technique

Table 5

FTIR peak assignments of different samples.

	Control		CTCECS
	0 day	20 days	0 day	20 days
Saturated acyl groups	1145.10	1164.78	1166.01	1163.27
-CH3 aliphatic groups	1377.23	1382.74	1382.74	1382.74
-CH2- aliphatic groups	1461.96	1461.31	1460.97	1456.81
Asymptotic response of the carboxylate absorption	1539.11	1542.00	1541.70	1542.21
C=O stretching of the triglycerides	1745.52	1745.80	1745.00	1745.00

Control, sample without any coating; CTCECS, sample coated with chitosan (2% w/v) + tea extract (0.25%w/v) + cinnamon extract (0.25%w/v).