Table 3. Estimated percentage of major oligosaccharides recovered by HPLC.
I, ileum; C, cecum; T, transverse colon; S, sigmoid colon; R, rectum; n.d., not detectable.
| Oligosaccharide recovered (%) | |||||
|---|---|---|---|---|---|
| m/z* | I | C | T | S | R |
| 425† | n.d. | n.d. | n.d. | 5.6 | n.d. |
| 513 | 3 | 2 | 2 | 2 | 2 |
| 551‡ | n.d. | 6 | 8 | 6 | 4 |
| 584‡ | n.d. | 5 | 1.5 | 3 | 2.5 |
| 587 | 9 | 20 | 11 | 9 | 5 |
| 613‡ | 12 | − | − | − | − |
| 657‡ | − | 2 | 3.5 | 3 | 2.5 |
| 675 | 3 | 2 | 3 | 2 | 3 |
| 685‡ | − | 5.5 | 13.5 | 13 | 7 |
| 716§ | 24 | 6 | 13 | 9 | 4 |
| 716∥ | 23 | 22.5 | 22 | 15 | 7 |
| 813 | 2 | 2 | 4 | 11 | 24 |
| 878 | 4 | 6 | 7 | 6 | 3 |
| 1024 | n.d. | 3 | 8 | 3 | 4 |
| 1081 | − | 5 | 6 | 8 | 4.5 |
* The HPLC fractions were identified by their corresponding m/z ions to allow comparison with the mass spectra.
† Ion at m/z 425 corresponding to both neutral core 3 and core 5 structures.
‡ Dicharged ions [M−2H]2−.
§ Ion at m/z 716 corresponding to a sialylated core 5.
∥ Ion at m/z 716 corresponding to a sialylated core 3.