Acknowledgments
This work was supported by FCT project NEW PROTECTION: NativE, Wild PRObiotic sTrain EffecCT In Olives in briNe, ref. PTDC/AGRALI/117658/2010, PhD fellowship ref. SFRH/BD/81997/2011 (both supervised by author FXM); and CONACyT – National Council for Science and Technology (Mexico). Liliana Moreira is to be acknowledged for technical assistance and valuable input on cytotoxicity assays.