Safety and efficacy of a feed additive consisting of l‐tryptophan produced using Corynebacterium glutamicum KCCM 80346 for all animal species (CJ Europe GmbH)
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena · 2025
Read Safety and efficacy of a feed additive consisting of l‐tryptophan produced using Corynebacterium glutamicum KCCM 80346 for all animal species (CJ Europe GmbH) by EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12706517.txt.
Description
An expert panel of the European Food Safety Authority assesses a bacterial-made amino acid for animal feed in a 2025 opinion. The additive is l-tryptophan brewed by a genetically modified strain of Corynebacterium glutamicum. The strain's cells are killed but not removed before the product is sold.
The panel found the genetic change itself raises no concern, and the strain carries no genes of worry, though its DNA remains in the product. No live cells were detected. The additive was judged safe for non-ruminant animals, for consumers of their products, and for the environment. One caution stands: unprotected tryptophan in ruminants may raise toxic byproducts.
Catalog record
| CREATOR | EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 36 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |