Table 1 Assignment of the Raman shifts

968 cm^–1

Lipids

1076–1078 cm^–1

υ(C-C) or υ(C-O)

1263–1264/1301–1303 cm^–1

Triglycerides (fatty acids), =C-H/C-H vibration, CH₂ deformation, CH₃ and CH₂ twisting

1436–1439 cm^–1

CH₂ scissoring, CH₂ deformation

1655–1680 cm^–1

Amide I

1750 cm^–1

υ(C = C)

2852–2881/2899–2907 cm^–1

CH₂ symmetric stretch/CH stretch (lipids)

2800–3000 cm^–1

υ(C − Η)