Table 2.
ZEN-contamination distribution in 2016–2018 in China.
| Year | Item | All | Corn | Corn Products | Swine Feed |
|---|---|---|---|---|---|
| 2016 | Total sample | 133 | 56 | 48 | 29 |
| Positive sample | 54 | 14 | 18 | 22 | |
| Positive rate (%) | 40.6 | 25.0 | 37.5 | 75.9 | |
| ZEN range (ng g−1) | 1.8–1100.0 | 1.8–950.4 | 2.3–958.1 | 8.8–1100.0 | |
| Average ZEN (ng g−1) | 217.9 | 144.1 | 315.0 | 185.4 | |
| 2017 | Total sample | 143 | 48 | 23 | 72 |
| Positive sample | 35 | 11 | 11 | 13 | |
| Positive rate (%) | 24.5 | 22.9 | 47.8 | 18.0 | |
| ZEN range (ng g−1) | 1.1–722.6 | 1.1–468.5 | 9.4–722.6 | 13.1–652.1 | |
| Average ZEN (ng g−1) | 166.7 | 87.2 | 205.3 | 201.3 | |
| 2018 | Total sample | 129 | 26 | 35 | 68 |
| Positive sample | 41 | 7 | 19 | 15 | |
| Positive rate (%) | 31.8 | 26.9 | 54.3 | 22.0 | |
| ZEN range (ng g−1) | 1.3–947.8 | 1.3–76.8 | 1.4–947.8 | 5.6–567.0 | |
| Average ZEN (ng g−1) | 157.0 | 24.1 | 176.7 | 193.9 |