Table 1.
FTIR bands observed in different S. cerevisiae CCTCC 93161 cells before and after PAT adsorption
| Functional groups | Wave numbers (cm−1) | ||
|---|---|---|---|
| Non-treated cells | High-temperature-treated cells | Snailase-treated cells | |
| O–H/N–H stretching | 3415.37 (3403.80) | 3411.51 (3396.09) | 3392.23 (3380.66) |
| C–H stretching | 2925.53 (2925.53) | 2925.53 (2925.53) | 2925.53 (2925.53) |
| C=O stretching in amide I | 1654.65 (1656.58) | 1658.51 (1654.65) | 1658.51 (1658.51) |
| N–H stretching in amide II | 1542.80 (1546.66) | 1537.01 (1540.87) | 1542.80 (1537.01) |
| C–N stretching in amide III | 1241.95 (1241.95) | 1241.95 (1241.95) | 1241.95 (1240.03) |
| C–O stretching in polysaccharides | 1049.10 (1047.18) | 1047.18 (1047.18) | 1047.18 (1047.18) |
| C–Br stretching in alkyl halide | 528.41 (530.34) | 578.55 (576.62) | – (–) |
() The infrared characteristic peaks of yeast cells after PAT adsorption