Rapid Discrimination of Cheese Products Based on Probabilistic Neural Network and Raman Spectroscopy

Table 1

The main Raman vibrational bands and their respective tentative assignments.

Wavenumber (cm^−1)	Assignment
1760	ν(C=O)ester
1670	ν(C=O)amide I; ν(C=C)
1620	ν(C-C)ring
1458	δ(CH2)
1313	τ(CH2)
1143	ν(C-O) + ν(C-C) + δ(C-O-H)
1095	ν(C-O) + ν(C-C) + δ(C-O-H)
1080	ν(C-O) + ν(C-C) + δ(C-O-H)
1019	Ring-breathing (phenylalanine); ν(C-C)ring
938	δ(C-O-C) + δ(C-O-H) + ν(C-O)
851	δ(C-C-H) + δ(C-O-C)
636	δ(C-C-O)
510	Glucose
384	Lactose

ν, stretching vibration; δ, deformation vibration; τ, twisting vibration.