Table 2.

Characteristic Raman bands of common Type I adulterants

Type I adulterants	Characteristic Raman band (cm−1)
Fish bladder	1668 (s), 1654 (s), 1448 (s), 1411 (m), 1306 (sh), 1263 (sh), 1243 (s), 1099 (m), 1028 (m), 1003 (s), 933 (m), 917 (s), 874 (m), 853 (m)
Pork skin	1669 (s), 1654 (s), 1448 (s), 1411 (m), 1263 (sh), 1240 (s), 1094 (m), 1028 (m), 1001 (s), 930 (m), 917 (m), 877 (m), 851 (m), 810 (m)
Karaya gum	1729 (m), 1446 (m), 1377 (m), 1318 (m), 1240 (m), 1147 (m), 1070 (s), 983 (m), 989 (m), 882 (s), 840 (s)
Coralline seaweed	1249 (m), 1090 (s), 1040 (m), 889 (m), 849 (vs)
Japanese agar–agar	1471 (m), 1079 (s), 963 (m), 890 (s), 837 (s), 770 (m), 738 (m)
Tremella fungus	1452 (m), 1374 (m), 1126 (s), 1087 (s), 1074 (s), 1056 (m), 910 (m)