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. 2019 May 2;17(5):e05697.
doi: 10.2903/j.efsa.2019.5697. eCollection 2019 May.

Safety and efficacy of l-lysine monohydrochloride and concentrated liquid l-lysine (base) produced by fermentation using Corynebacterium glutamicum strain KCCM 10227 for all animal species

EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP); Vasileios Bampidis, Giovanna Azimonti, Maria de Lourdes Bastos, Henrik Christensen, Birgit Dusemund, Maryline Kouba, Mojca Kos Durjava, Marta López-Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Yolanda Sanz, Roberto Edoardo Villa, Ruud Woutersen, Lucio Costa, Francesco Cubadda, Noël Dierick, Gerhard Flachowsky, Alberto Mantovani, Robert John Wallace, Jordi Tarres-Call, Fernando Ramos

Safety and efficacy of l-lysine monohydrochloride and concentrated liquid l-lysine (base) produced by fermentation using Corynebacterium glutamicum strain KCCM 10227 for all animal species

EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) et al. EFSA J. .

Abstract

Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on l-lysine monohydrochloride and concentrated liquid l-lysine (base) produced using Corynebacterium glutamicum KCCM 10227 when used as nutritional additives in feed and water for drinking for all animal species. The active substance is l-lysine. l-lysine HCl and concentrated liquid l-lysine (base) produced by the strain C. glutamicum KCCM 10227 do not represent a risk for the target species, the consumer and the environment. l-lysine HCl produced by C. glutamicum KCCM 10227 is hazardous by inhalation, it is not irritant to skin but mildly irritant to eyes and it is not a skin sensitiser. Concentrated liquid l-lysine (base) produced by C. glutamicum KCCM 10227 is hazardous by inhalation, not irritant to skin and eyes and it is not a skin sensitiser. l-lysine HCl and concentrated liquid l-lysine (base) 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.

Keywords: amino acid; efficacy; lysine base; lysine monohydrochloride; nutritional additive; safety.

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Figures

Figure 1
Figure 1
Molecular structure of l‐lysine HCl
Figure 2
Figure 2
Molecular structure of l‐lysine
See this image and copyright information in PMC

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