Table 1.
Sample origin, grain sorting treatments, and studied mycotoxins in the maize and groundnut bulk samples, single kernels, and small kernel sets.
| Crop | Sample set a | Type of infection | Sorting treatment |
Considered mycotoxins | |
|---|---|---|---|---|---|
| For bulk analyses | For analyses of single kernels or small sets of kernels | ||||
| Maize | MS17 | Inoculated plots | DropSorting | DropSorting/visual sorting/BGYF sorting | Aflatoxins |
| MS18 | Inoculated plots | DropSorting/size sorting b | – | Aflatoxins | |
| TZ18 | Natural infection/open markets | DropSorting + visual sorting | – | Fumonisins | |
| TZ19 | Natural infection/open markets | DropSorting + size sorting | DropSorting + size sorting/visual sorting | Aflatoxins + Fumonisins c | |
| Groundnut | TZ19 | Natural infection/open markets | DropSorting + size sorting | DropSorting + size sorting/visual sorting | Aflatoxins |
a
The samples originated from Mississippi experimental plots in the year of 2017 (MS17), Mississippi experimental plots in the year of 2018 (MS18), open markets in Tanzania in the year of 2018 (TZ18), and open markets in Tanzania in the year of 2019 (TZ19).
b
A total of 10 maize samples from MS18 were DropSorted and five samples were size sorted.
c
Bulk samples used for fumonisin studies mostly differed from those used for aflatoxin studies. Fumonisins were only analyzed for bulk samples, not for small sets of kernels.