Open AccessSafety of l ‐tryptophan technically pure, produced by Escherichia coli CGMCC 3667, for all animal species based on a dossier submitted by GBT Europe GmbH
Author(s) -
Rychen Guido,
Aquilina Gabriele,
Azimonti Giovanna,
Bampidis Vasileios,
Bastos Maria de Lourdes,
Bories Georges,
Chesson Andrew,
Flachowsky Gerhard,
Gropp Jürgen,
Kolar Boris,
Kouba Maryline,
LópezAlonso Marta,
López Puente Secundino,
Mayo Baltasar,
Ramos Fernando,
Saarela Maria,
Villa Roberto Edoardo,
Wallace Robert John,
Wester Pieter,
Glandorf Boet,
Herman Lieve,
Kärenlampi Sirpa,
Aguilera Jaime,
Cocconcelli Pier Sandro
Publication year - 2017
Publication title -
efsa journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.076
H-Index - 97
ISSN - 1831-4732
DOI - 10.2903/j.efsa.2017.4705
Subject(s) - european commission , microbiology and biotechnology , feed additive , escherichia coli , european union , animal feed , genetically modified organism , biology , tryptophan , animal species , strain (injury) , animal health , genetically engineered , business , food science , gene , zoology , genetics , amino acid , broiler , economic policy , anatomy
l ‐Tryptophan, technically pure, is a feed additive produced by fermentation with a genetically modified strain of Escherichia coli . The Panel on Additives and Products or Substances used in Animal Feed ( FEEDAP ) of EFSA, issued two opinions on the safety and efficacy of the product, in which it could not conclude on the safety of this additive for target animals, consumer, user and the environment, due to the insufficient characterisation of the genetic modification. The European Commission asked the Authority to deliver an opinion on the safety of l ‐tryptophan, technically pure, as a nutritional additive for all animal species based on additional data submitted by the applicant. Based on new information provided on the genetic modification, including the presence/absence of antibiotic resistance genes in the production strain, the FEEDAP Panel concludes that the l ‐tryptophan is safe for target animals, consumers, users and the environment.