Lactobacillus casei ferments the N-Acetylglucosamine moiety of fucosyl-α-1,3-N-acetylglucosamine and excretes L-fucose.

@article{RodrguezDaz2012LactobacillusCF,
  title={Lactobacillus casei ferments the N-Acetylglucosamine moiety of fucosyl-α-1,3-N-acetylglucosamine and excretes L-fucose.},
  author={Jes{\'u}s Rodr{\'i}guez-D{\'i}az and Antonio Rubio-del-Campo and Mar{\'i}a Jes{\'u}s Yebra},
  journal={Applied and environmental microbiology},
  year={2012},
  volume={78 13},
  pages={4613-9}
}
We have previously characterized from Lactobacillus casei BL23 three α-L-fucosidases, AlfA, AlfB, and AlfC, which hydrolyze in vitro natural fucosyl-oligosaccharides. In this work, we have shown that L. casei is able to grow in the presence of fucosyl-α-1,3-N-acetylglucosamine (Fuc-α-1,3-GlcNAc) as a carbon source. Interestingly, L. casei excretes the L-fucose moiety during growth on Fuc-α-1,3-GlcNAc, indicating that only the N-acetylglucosamine moiety is being metabolized. Analysis of the… CONTINUE READING