Functional groups or chemical bonds by IR | ZBP | ZJP | ZTP | ZHP | ZYP | ZMP |
---|---|---|---|---|---|---|
Typical absorption peaks of polysaccharides (3200–3600 cm−1) | √ | √ | √ | √ | √ | √ |
Existence of a sugar ring (2920–2935 cm−1) | √ | √ | √ | √ | √ | √ |
Existence of uronic acid (C=O stretching vibration and O–H bending vibration) (1500–1740 cm−1 and 1050–1260 cm−1) | √ | √ | √ | √ | √ | √ |
Bound water (1635–1640 cm−1) | √ | √ | √ | √ | √ | √ |
C–H bending vibration (1455–1460 cm−1) | √ | √ | √ |  ×  |  ×  | √ |
C=O symmetric stretching vibration (1335–1340 cm−1) | √ | √ | √ | √ | √ | √ |
C–O stretching vibration (1070–1450 cm−1) | √ | √ | √ | √ | √ | √ |
Existence of a pyranose sugar (910–920 cm−1) | √ | √ | √ | √ | √ | √ |
β-Configuration of pyranose sugar units (864–900 cm−1) | √ | √ | √ | √ | √ | √ |