Table 2.

Molecular assignment of main Raman peaks of Lacticaseibacillus paracasei Zhang.

Molecular Group	Raman Frequency (cm−1)	Chemical Assignment	Reference
Carbohydrate	885	Disaccharide (cellobiose), (C-O-C) skeletal mode	[41]
	1071	D-Fructose-6	[42]
	1112	Saccharide band (overlaps with acyl band)	[41]
Lipid	860	Phosphate group; phosphatidic acid	[41]
	908	Myristic acid	[42]
	1044	ν3PO43− (symmetric stretching vibration of ν3PO43− of HA)	[41]
	1065	Palmitic acid, fatty acid	[41]
Protein	883	ρ (CH2) (protein assignment)	[41]
	950	Most probably due to single bond stretching vibrations of the amino acids proline and valine and polysaccharides	[41]
	1003	Symmetric ring breathing mode of phenylalanine	[43]
Nucleic acid	729	Adenine ring breathing	[43]
	786	Cytosine	[35]
	1092	Phosphodioxy	[41]
	1363	Guanine (N7, B, Z-marker)	[41]
	1459	Deoxyribose; δ(CH2)	[41]
Others	540	L-Histidine	[42]
	643	Glutathione	[42]
	1247	Amide III	[43]
	1328	L-Tryptophan	[42]
	1575	Tryptophan-related bands	[27]
	1660	L-Valine	[42]
	2935	CH stretching of lipid and protein	[43]