3c410 | — | L-threonine | Additive composition:Powder with a minimum of 98 % L-threonine (on a dry matter basis).Characterisation of the active substance:L-threonine produced by fermentation with Escherichia coli DSM 25086 orEscherichia coli FERM BP-11383 orEscherichia coli FERM BP-10942 orEscherichia coli NRRL B-30843 orEscherichia coli KCCM 11133P orEscherichia coli DSM 25085 orEscherichia coli CGMCC 3703 orEscherichia coli CGMCC 7.58.Chemical formula: C4H9NO3CAS Number: 72-19-5Analytical methods:For the determination of L-threonine in the feed additive:- Food Chemical Codex "L-threonine monograph" and
- Ion exchange chromatography method with post-column derivatisation and photometric detection (IEC-UV/FD) — EN ISO 17180.
For the determination of threonine in premixtures:- ion exchange chromatography coupled with post-column derivatisation and photometric detection (IEC-UV/FD) — EN ISO 17180 and
- ion exchange chromatography coupled with post-column derivatisation and photometric detection (IEC-UV), Commission Regulation (EC) No 152/2009 (Annex III, F)
For the determination of threonine in premixtures, compound feed, feed materials and water:- Ion exchange chromatography method with post-column derivatisation and photometric detection (IEC-UV): Regulation (EC) No 152/2009 (Annex III, F).
| All species | — | — | — | - 1.L- threonine may be placed on the market and used as an additive consisting of a preparation.
- 2.For users of the additive and premixtures, feed business operators shall establish operational procedures and organisational measures to address potential risks by inhalation. Where those risks cannot be eliminated or reduced to a minimum by such procedures and measures, the additive and premixtures shall be used with personal protective equipment, including breathing protection.
- 3.L-threonine can be also used via water for drinking.
- 4.Declarations to be made on the labelling of the additive:Moisture content.
- 5.Declarations to be made on the labelling of the additive and premixtures:"If the additive is administered via water for drinking, protein excess should be avoided."
| 16.8.2026 |