Research Article

Fluorescence Rejection by Shifted Excitation Raman Difference Spectroscopy at Multiple Wavelengths for the Investigation of Biological Samples

Table 1

Raman bands identified in the SERDS spectra of meat from beef and pork and their vibrational assignment, Phe: Phenylalanine, Trp: Tryptophan, Tyr: Tyrosine.

Vibrational assignment783 nm excitation671 nm excitation488 nm excitationLiterature value
[References]

Quartz492492489
Quartz603602602
Myoglobin671671–678 [13, 14]
Adenine720717720 [15]
Trp757753752750–760 [16, 17]
Quartz782783780
Tyr 𝜈 -ring827825826827–834 [15, 16, 18]
Tyr 𝜈 -ring855853852850–860 [16]
Trp 𝜈 -ring880875877–881 [15, 16]
𝜈 C–C901902900–901 [16, 19]
𝜈 C–C936935937934–944 [16]
Carotenoid960960–965 [20]
Phe 𝜈 -ring1002100210011000–1006 [16, 17]
Carotenoid10021000–1014 [21]
C–C ring bend (Phe)103310321030–1033 [17, 19]
𝜈 C–N, 𝜈 C–C104710491040–1120 [19]
𝜈 C–N, 𝜈 C–C1081107710761040–1120 [19]
𝜈 C–N1126112511251127–1130 [18, 22]
𝜈 C–C, 𝛿 COH115611541156 [15]
Carotenoid11541151–1172 [21]
Tyr117311711172–1175 [15, 22]
Carotenoid11881191–1193 [20]
Tyr, Phe120612031205–1209 [17, 19]
Carotenoid12101213–1215 [20]
Amide III ( 𝛽 -chain, random)124212341225–1250 [19]
Amide III ( 𝛼 -helix)126612661265–1278 [17, 19]
Amide III ( 𝛼 -helix)130413041301–1309 [15, 16]
Trp; δCH134113391339–1342 [15, 16, 19]
Myoglobin13511353–1371 [13, 14]
𝛿 CH31395139413971395 [15]
𝛿 a s CH3, 𝛿 CH2, 𝛿 CH1447144614471447–1451 [17, 19]
CH2 and CH3 bending1460146114651460–1483 [16]
Carotenoid15201511–1535 [21]
Trp 𝜈 -ring155015491553-1554 [16]
Trp, Phe, Tyr 𝜈 -ring1603161016011605–1618 [15, 16]
Amide I ( 𝛼 -helix)1648164716531645–1658 [16, 18]