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Table 3 Distribution of aflatoxins and fumonisins contamination in raw rice and rice with applied reduction of washing 14–24% and cooking 7–88% of the raw rice contamination in the Mekong Delta (ng/g)

From: Public health risk due to aflatoxin and fumonisin contamination in rice in the Mekong Delta, Vietnam

Mycotoxins

Scenarios

Rice (raw rice) (ng/g)

Mean

P50

P75

P90

P95

Aflatoxins

Data>LOQ for raw rice

4.97

4.50

5.27

6.48

7.45

LB

0.18 (1.88)

0.09 (1.5)

0.23 (4.07)

0.53 (4.86)

0.7 (5.64)

MB

0.27 (2.98)

0.21 (3.0)

0.38 (4.07)

0.55 (4.86)

0.68 (5.64)

UB

0.35 (4.0)

0.33 (4.0)

0.49 (4.07)

0.61 (4.86)

0.7 (5.64)

Fumonisins

Data>LOQ for raw rice

332

323

371

421

455

LB

81 (227)

92 (279)

124 (343)

152 (400)

172 (433)

MB

93 (261)

92 (280)

124 (343)

152 (400)

172 (433)

UB

103 (290)

95 (280)

124 (342)

152 (400)

172 (433)

  1. The distribution mycotoxins in rice = the distribution of mycotoxins raw rice x distribution of washing reduction x distribution of cooking reduction at LB, MB and UB; LB Lower Bound, MB Medium Bound, and UB Upper Bound based on the best fit distributions presented in Table 3; P50 Percentile 50%, P75 Percentile 75%, P90 Percentile 90%, P95 Percentile 95%; n = 20 (<LOD); n = 16 (>LOD and < LOQ) and n = 14 (>LOQ) for AFs, for FBs n = 13 (<LOD); n = 4 (>LOD and < LOQ) and n = 33 (>LOQ);