Fermentation-Derived L-Leucine Using Corynebacterium glutamicum Strain KCCM 80421
The European Union is considering the authorization of a new feed additive, L-Leucine, produced by fermentation with Corynebacterium glutamicum KCCM 80421. This additive, intended for use as a sensory additive, has a minimum purity of 90%.
The applicant has proposed a maximum recommended inclusion level of 25 mg/kg compound feed when used as a sensory additive. The authorization is sought under Article 4 for categories/functional groups 3(c) 'nutritional additives' and 2(b) 'sensory additives'.
For feed additives containing more than 10% of the amino acid, the EN ISO 17180 method is recommended for the determination of free leucine in the feed additive and premixtures. In all other cases, the ring-trial validated European Union (EU) method (Commission Regulation (EC) No 152/2009) is recommended for the determination of leucine in the feed additive, premixtures, compound feed, and water. The EURL recommends this method for determining leucine, with the exception of sensory additives, where the EU method is used instead.
The proposed L-Leucine feed additive is intended for use as a sensory additive in feed for all animal species. It can be mixed into premixtures, incorporated through complementary feed, or added directly to compound feed or water.
No further testing or validation of the methods is considered necessary, according to the application. However, it's worth noting that no relevant information was found in the search results regarding which institution recommended the use of the EN ISO 17180 method for determining free L-Leucine in feed additives and premixes when the product contains more than 10% of the amino acid.
The authorization of this new feed additive could potentially open up new opportunities in the animal feed industry, providing a sensory additive with a consistent level of quality and purity. As the EU continues to review the application, more information will become available about the potential benefits and implications of this new feed additive.
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