Table 2 List showing the wavenumbers associated with the Raman peaks observed in the averaged spectra, their assignation and correspondent references.

424

Symmetric stretching vibration of \(\nu _2\) PO\(_4^{3-}\)⁴⁴

476

Polysaccharides, amylose, amylopectin

540

PO\(_4^{3-}\) out-of-plane bending⁴⁵

574

Tryptophan, cytosine, guanine⁴⁴

630

Glycerol^44,46, cysteine⁴⁷

695

\(\nu\) S–S trans (methionine)⁴⁸

760

Tryptophan (ring breathing)^49,50

803

Tryptophan⁵¹

875

Choline⁴⁴

953

Choline⁵²

1012

Tryptophan⁵³, C–O stretching (ribose)⁵⁴

1078

Phospholipids^51,55

1150

P–O (nucleic acids, carbohydrates)⁵⁶

1238

Amide III⁵⁶

1312

CH₃CH₂ twisting mode of collagen/lipids⁴⁴

1392

C–N stretching⁴⁴

1487

RNA⁵⁷, collagen⁴⁴

1617

\(\nu\)(C=C) (tryptophan)⁴⁴

1741

C=O stretching (lipids)^58,59