Table 2.
Aflatoxin M1 levels in different milk products purchased from two different parts, Dagoretti and Westlands, of Nairobi, Kenya
| Number of samples | Mean aflatoxin M1 levels | Standard deviation | Min | Max | Above 50 ng/kg (%) | Above 500 ng/kg | |
|---|---|---|---|---|---|---|---|
| Dagoretti | 135 | 106.1 | 140 | < LOD | 1100 | 89 (65.9) | 2 |
| Lala | 8 | 111 | 121 | 10 | 340 | 5 (62.5) | 0 |
| Milk | 110 | 107 | 149 | < LOD | 1100 | 71 (64.5) | 0 |
| Boiled | 13 | 46 | 23 | 14 | 88 | 5 (38.5) | 0 |
| Pasteurised | 18 | 126 | 189 | < LOD | 740 | 13 (72.2) | 1 |
| Raw | 62 | 131 | 165 | < LOD | 1100 | 46 (74.2) | 1 |
| UHT | 17 | 46 | 24 | 7.3 | 84 | 7 (41.2) | 0 |
| Yoghurt | 17 | 96 | 75 | 26 | 270 | 13 (76.5) | 0 |
| Westlands | 156 | 66 | 107 | < LOD | 1100 | 62 (39.7) | 1 |
| Lala | 27 | 48 | 35 | 12 | 160 | 8 (29.6) | 0 |
| Milk | 108 | 57 | 72 | < LOD | 470 | 42 (38.9) | 0 |
| Pasteurised | 53 | 55 | 34 | 7.6 | 210 | 26 (49.1) | 0 |
| UHT | 55 | 58 | 95 | < LOD | 470 | 16 (29.1) | 0 |
| Yoghurt | 21 | 134 | 232 | 17 | 1100 | 12 (57.1) | 1 |
| Total | 291 | 84 | 125 | < LOD | 1100 | 151 (51.9) | 3 |
All lala and yoghurt products were pasteurised
LOD Limit of detection (2 ng/kg)