COMMISSION IMPLEMENTING REGULATION (EU) 2020/1372
of 1 October 2020
concerning the authorisation of L-tryptophan produced by
Escherichia coli
CGMCC 7.267, CGMCC 11 674 or KCCM 10 534 as a feed additive for all animal species
(Text with EEA relevance)
Article 1
Article 2
ANNEX
Identification number of the additive |
Name of the holder of authorisation |
Additive |
Composition, chemical formula, description, analytical method. |
Species or category of animal |
Maximum age |
Minimum content |
Maximum content |
Other provisions |
End of period of authorisation |
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mg/kg of complete feed with a moisture content of 12 % |
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Category of nutritional additives. Functional group: amino acids, their salts and analogues. |
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3c441 |
- |
L-tryptophan |
Additive composition: Powder with a minimum of 98 % L-tryptophan (on a dry matter basis) Maximum content of 10 mg/kg 1,1′-ethylidene-bis-L-tryptophan (EBT) |
All species |
- |
- |
- |
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22.10.2030 |
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Characterisation of the active substance: L-tryptophan produced by fermentation with Escherichia coli CGMCC 7.267 or Escherichia coli KCCM 10 534 or Escherichia coli CGMCC 11674 Chemical formula: C11H12N2O2 CAS No: 73-22-3 |
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Analytical methods (1): For the identification of L-tryptophan in the feed additive:
For the determination of tryptophan in the feed additive and premixtures:
For the determination of tryptophan in compound feed and feed materials:
For the determination of tryptophan in water:
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