TABLE 2

Prebiotic β-(2-1)-fructans used in this study, ordered according to their potential to stimulate cross-feeding between L. paracasei W20 and L. salivarius W57a

Commercial nameDescription
1-KestoseGF2
NystoseGF3
scFOS P6scFOS
Frutafit CLRsc-inulin
Inulin P2Native inulin
Frutafit HDNative inulin
Frutafit TEXlc-inulin
FOS P1Oligofructose
Frutalose OFPOligofructose
  • a From top (starting with 1-kestose; high cross-feeding) to bottom (ending with oligofructose; low cross-feeding), the fructans are ranked on the basis of the activity of the extracellular L. paracasei W20 LpGH32 enzyme for releasing more of the GF (sucrose) and 1-kestose (GF2) molecules from the shorter β-(2-1)-fructans and from fructans comprising more GF-type molecules (and not from oligofructans).