Safety and efficacy of L-lysine monohydrochloride and concentrated liquid L-lysine (base) produced by fermentation using Corynebacterium glutamicum strain NRRL B-50775 for all animal species based on a dossier submitted by ADM

Abstract:

The European Commission asked EFSA for an opinion on the safety for the target animals, consumer, user and the environment and on the efficacy of a L-lysine monohydrochloride (HCl, minimum 98.5%) and of a concentrated liquid L-lysine (base, minimum 50%) produced by a genetically modified strain of Corynebacterium glutamicum (NRRL B-50775). They are intended to be used in feed or water for drinking for all animal species and categories. Neither the production strain C. glutamicum NRRL B-50775 nor its recombinant DNA was detected in the final product. Therefore, the product does not pose any safety concern associated with the genetic modification of the production strain. L-Lysine HCl and concentrated liquid L-lysine (base) produced by C. glutamicum NRRL B-50775 are considered safe for the target species, for the consumer and for the environment. L-Lysine HCl produced by C. glutamicum NRRL B-50775 is considered not irritant to skin or eyes and not a skin sensitiser. In the absence of data, the FEEDAP Panel cannot conclude on the potential toxicity by inhalation of L-lysine HCl produced by C. glutamicum NRRL B-50775. Concentrated liquid L-lysine (base) produced by C. glutamicum NRRL B-50775, due to its high pH (11) it is anticipated to be corrosive to skin and eyes and poses a risk by inhalation. L-Lysine HCl and concentrated liquid L-lysine (base) produced by C. glutamicum NRRL B-50775 are considered as efficacious sources of the essential amino acid L-lysine for non-ruminant animal species. For the supplemental L-lysine to be as efficacious in ruminants as in non-ruminant species, it would require protection against degradation in the rumen.

Año de publicación:

2019

Keywords:

• concentrated liquid L-lysine base
• safety
• L-lysine monohydrochloride
• amino acids
• nutritional additive

Fuente:

scopus