Mais Bt11
Summary of risk assessment
| Opinion of the former Scientific Committee on Plants (SCP) |
| Adopted |
17/04/2002 |
| Conclusion |
Bt11 maize is as safe as conventional maize, and releasing Bt11 for processing and food and feed use is unlkikely to cause adverse effects on human health and the environment. |
| Comparative analysis |
| Basis of comparison |
Conventional counterpart ( isogenic line). No difference in the phyiscal properties of kernels could be found. |
| Compositional analysis |
Several parameters were compared, including: moisture content, protein content, lipids, sugars, carbohydrates, calories, vitamin A, vitamin C, sodium, potassium, and iron content. No differences were observed. |
| Safety of food and feed |
| New proteins(CRY1A(b)+PAT) |
Comparison with known toxins: No correspondence |
| Allergenicity of the new proteins(PAT+Cry1A(b)) |
No correspondence with known allergens( amino acid sequence comparison)
Proteins are rapidly broken down during digestion. |
| Feeding studies |
Tests on mice (supplied with the recombinant protein via drinking water) did not show signs of negative health effects. |
| Environmental safety |
| Surviveability |
Maize is highly domesticated and is not viable outside of cultivation. |
| Out-crossing |
Maize has no cross-compatible wild relatives in Europe. Out-crossing is only possible with maize in neighbouring fields. |
| Field trials |
Evaluation of field trials in France (1999) and in the US (1995-1999). |
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