Application of FTIR spectroscopy for analysis of the quality of honey

Open Access

Table 3.

Location of maxima of FTIR absorption bands with arrangement of appropriate vibration for selected honeys: multifloral, linden (mixed and non-mixed) in terms of spectral 3700-900 cm"1.

FTIR				Type and origin of vibrations
Position of bands [cm^-1]
Multifloral		Linden
mixed	non-mixed	mixed	non-mixed
3337	3327	3333	3325	V (O-H) in H₂O
2934	2941	2929	2921	V (C-H) or/and V (NH₃) of free amino acids
2888	2879	2888	2882	V (C-H) or/and V (NH₃) of free amino acids
1644	1643	1647	1644	5 (O-H) from H₂O
1446	1456	1453	1453	5 (O-CH) and 5 (C- C-H)
1412	1420	1417	1418	5 (O-H) in C-OH ?
				group + 5 (C-H) in the alkenes
1346	1345	1348	1347	5 (-OH) in C-OH group
1253	1256	1247	1253	V (C-H) in carbohydrates or/and V (C-O) in carbohydrates
1189	1186	1182	1189	V (C-H) in carbohydrates or/and V (C-O) in carbohydrates
1147	1145	1149	1153	V (C-H) in carbohydrates or/and V (C-O) in carbohydrates
1100	1101	1103	1103	V (C-O) in C-O-C group
1081	1080	1080	1080	V (C-O) in C-O-C group
1056	1056	1055	1056	V (C-O) in C-OH group or V (C-C) in the carbohydrate structure
1031	1032	1038	1033
1014	1011	1012	1017
981	981	981	985
965	966	966	976
918	917	923	933	5 (C-H)
896	897	893	897	anomeric region of carbohydrates or 5 (C-H)
867	866	862	868
835	830	844	846
815	815	817	816

ν – stretching vibrations, δ – deformation vibrations, s – symmetric, as – denotes frequencies that may originate from the solvent used asymmetric, st – strong

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