Table 3.
Distribution of AFB1, AFB2 and Total AFs in brown rice during 2006–2011. All measurements were done in triplicate
| Toxins | Tested samples | Number of samples in concentration range, μg/kg |
Mean (μg/kg) | Range (μg/kg) | ||||
|---|---|---|---|---|---|---|---|---|
| Positive samples | NFa | < 4b | 4 to 20c | > 20 | ||||
| AFB1 | 262 | 250 (95.4%) | 12 (4.6%) | 188 (71.7%) | 61 (23.3%) | 1 (0.38%) | 3.80 | 1.07–24.65 |
| AFB2 | 262 | 20 (7.6%) | 242 (92.4%) | 20 (7.6%) | 0 | 0 | 0.09 | 0.52–2.62 |
| Total AFs | 262 | 250 (95.4%) | 12 (4.6%) | 188 (71.7%) | 61 (23.3%) | 1 (0.38%) | 3.89 | 1.07–27.27 |
a Not found within detectable limit (≥ 1 μg/kg )
b Below than EU MTL (≤ 4 μg/kg )
cBelow than FDA, FAO and PSQCA MTL (≤ 20 μg/kg )