Table 3.
Ciguatoxin contents in Lutjanus bohar implicated in CFP in Vietnam in 2014 and 2016.
| Incident | Body Part | CTX Contents (ng/g) *1 | Total Toxicity (MU/g) Estimated by LC/MS *4 | Toxicity (MU/g) by MBA | ||
|---|---|---|---|---|---|---|
| CTX-1B Average (SD) | 54-deoxyCTX-1B Average (SD) | 52-epi-54-deoxyCTX-1B Average (SD) | ||||
| 1 | flesh | 3.67 (0.21) | 0.36 (0.18) *2 | 0.74 (0.24) *2 | 0.58 | 0.15 |
| 2 | viscera | 0.92 (0.03) | ND | ND *3 | 0.13 | - |
| 2 | flesh | 2.77 (0.05) | ND | ND *3 | 0.40 | 0.35–0.40 |
*1 Data was obtained by triplicate analyses; *2 Quantification of deoxy-CTX-1B was carried out by using the peak area of a CTX-1B standard; *3 Trace levels of toxin were detected by TOF LC/MS; *4 Total toxicity (MU/g) = CTX-1B content (ng/g)/7 (ng/MU) + 52-epi-54-deoxyCTX-1B (ng/g)/14 (ng/MU); Conversion factors (ng/MU) of CTX-1B and 52-epi-54-deoxyCTX-1B are 7 and 14, respectively [13,14,22,23].