Elisabeth J. Faber

TL;DR: The fructan was identified as a (2→6)-β-d-fructofuranan or levan, the first example of levan synthesis by a Lactobacillus species, and has a unique structure consisting of terminal, 4- substituted, 6-substituting, and 4,6-disubst ituted α-glucose in a molar ratio of 1.1:2.0.

TL;DR: Linkage analysis and 1D/2D NMR studies revealed that both strains have the same branched heptasaccharide repeating unit, and permeability measurements of non-stirred milk cultures of both strains suggest that both strain have a similar effect on the protein-polysaccharide network.

TL;DR: This is the first report on the molecular characterization of a glucosyltransferase from a Lactobacillus strain and it is revealed that GTFA is responsible for the synthesis of the unique glucan polymer in L. reuteri strain 121.

TL;DR: This modification implies that (i) bacterial glycosyltransferases could potentially have multiple specificities for the donor and the acceptor sugar molecule; and (ii) the repeating unit polymerase can recognize and polymerize a repeating unit that differs in the backbone as well as in the side‐chain from its native substrate.

TL;DR: The structure of the exopolysaccharide produced by S. macedonicus Sc136 was determined by chemical analysis, mass spectrometry, and nuclear magnetic resonance spectroscopy and the repeating unit was shown to be a key factor in the highly texturizing properties of the S.macedonicu Sc136 exopoly Saccharide.