Safety and efficacy of Pediococcus pentosaceus DSM 32291 as a silage additive for all animal species

technological additive, silage additive, Pediococcus pentosaceus, safety, QPS, efficacy
First published in the EFSA Journal
20. März 2018
21. Februar 2018
Scientific Opinion


Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed was asked to deliver a scientific opinion on the safety and efficacy of a strain of Pediococcus pentosaceus when used as a technological additive intended to improve ensiling at a proposed application rate of 5 × 107 CFU kg/fresh matter. The species P. pentosaceus is considered by EFSA to be suitable for the qualified presumption of safety approach to safety assessment and not to require specific demonstration of safety other than the absence of resistance to antibiotics of human and veterinary significance. As the identity of the strain was clearly established and as no antibiotic resistance was detected, the use of the strain in the production of silage is presumed safe for livestock species, consumers of products from animals fed treated silage and the environment. In the absence of data, no conclusion can be drawn on the skin and eye irritancy of the additive. The additive should be considered a potential respiratory sensitiser. Pediococcus pentosaceus DSM 32291 at a minimum dose of 5 × 107 CFU/kg has the potential to improve the production of silage from easy and moderately difficult to ensile materials by decreasing dry matter loss and protein degradation during ensiling.

Panel members at the time of adoption

Gabriele Aquilina, Giovanna Azimonti, Vasileios Bampidis, Maria de Lourdes Bastos, Georges Bories, Andrew Chesson, Pier Sandro Cocconcelli, Gerhard Flachowsky, Jürgen Gropp, Boris Kolar, Maryline Kouba, Marta López-Alonso, Secundino López Puente, Alberto Mantovani, Baltasar Mayo, Fernando Ramos, Guido Rychen, Maria Saarela, Roberto Edoardo Villa, Robert John Wallace and Pieter Wester.
Panel on Additives and Products or Substances used in Animal Feed
feedap [at]
EFSA Journal 2018;16(3):5202
Question Number
On request from
European Commission
Competing interests
In line with EFSA’s policy on declarations of interest, Panel member Baltasar Mayo did not participate in the development and adoption of this scientific output.