Influence of Solvent on the Component Composition and Antioxidant Properties of Apricot Cake (Prunus armeniaca L.) Extracts

Table 3

Absorption bands (cm⁻¹) in the IR spectrum of apricot flint extracts.

Wavetype	Frequency (cm^−1)	Extracts
		2-Propanol	2-Propanol silicone	Ethanol-silicone	Ethanol	Silicone
νОН	3636–3150	3334	3339	3329	3330
νСН	2880–2650	2968	2967	2969	2971	2962
νasCH2	2940–2915	2924	2930	2927	2925	—
νsCH2OH	330–2500	—	—	2885	—	2905
νasCH2	2857–2853	2853	—	—	—	—
νCH2COOR	1750–1735	—	—	—	—	1753
νC = O	1750–1740	1745	1746	—	1743	—
δCOOH	1725–1700	—	—	1718	—	—
νC = C	1680–1640	1654	—	1649	1647	—
νasCH2CO	1480–1440	1465	1468	1459	1452	—
δCH2COOH	1440–1395	1409	1407	1405	—	1399
δOH	1400–1340	1379	1379	1379	1388	—
δasCH3	1380–1378	—	—	—	1380	—
δasOH	1410–1310	1321	1321	1319	1320	—
νCO	1320–1210	1300	1304	1299	1273	—
νasCOC	1280–1150	—	1260	—	—	1257
δCH	1175–1125	1159	1159	1157	—	—
δOH	1170–1100	1128	—	1112	—	—
νCОН	1125–1085	1103	1066	1103	1088	—
νCОН	1085–1050	—	—	—	—	1052
δCОН	955–860	950	952	951	879	862
νCOOH	920–800	—	857	—	—	—
δCНO	975–780	815	801	816	803	796
δOH	750–650	—	689	753	—	697
δC = COH	674–671	—	671	—	—	671