3c410 | — | L-threonine | Additive compositionPowder with a minimum of 98 %L-threonine (on a dry matter basis).Characterisation of the active substanceL-threonine produced by fermentation with Corynebacterium glutamicum KCCM 80117 orCorynebacterium glutamicum KCCM 80118Chemical formula: C4H9NO3CAS Number: 72-19-5.Analytical methodsFor the determination of L-threonine in the feed additive:- Food Chemical Codex "L-threonine monograph", and
- Ion exchange chromatography coupled with post-column derivatisation and optical detection (IEC-VIS/FLD) – EN ISO 17180.
For the determination of threonine in premixtures:- ion exchange chromatography coupled with post-column derivatisation and optical detection (IEC-VIS/FLD) – EN ISO 17180, and
- ion exchange chromatography coupled with post-column derivatisation and photometric detection (IEC-VIS), Commission Regulation (EC) No 152/2009 (Annex III, F).
For the determination of threonine in compound feed and feed materials:- Ion exchange chromatography coupled with post-column derivatisation and photometric detection (IEC-VIS): Commission Regulation (EC) No 152/2009 (Annex III, F).
For the determination of threonine in water:- ion exchange chromatography coupled with post-column derivatisation and optical detection (IEC-VIS/FLD).
| All species | — | — | — | - 1.L-threonine may be placed on the market and used as an additive consisting of a preparation.
- 2.L-threonine may be used via water for drinking.
- 3.The labelling of the additive shall indicate the moisture content.
- 4.The labelling of the additive and premixtures shall indicate the following:"The supplementation with L-threonine, in particular via water for drinking, should take into account all essential and conditional essential amino acids in order to avoid imbalances."
| 12.3.2030 |