Structural and physicochemical characterisation and antioxidant activity of an α-D-glucan produced by sourdough isolate Weissella cibaria MED17
An exopolysaccharide (EPS) producer slimy-mucoid type colony was isolated from
sourdough and identified as Weissella cibaria MED17. The 1 H and 13 C NMR spectra of
EPS MED17 demonstrated that this EPS was a dextran type glucan ((1→ 6)-linked α-D-
glucose core structure) containing (1→ 3)-linked α-D-glucose branches and proportion of
(1→ 6)-linked α-D-glucose units to (1→ 3)-linked α-D-glucose units was 94.3: 5.7%. The
FTIR analysis also confirmed the (1→ 6)-linked α-D-glucose linkage. A high level of thermal …
sourdough and identified as Weissella cibaria MED17. The 1 H and 13 C NMR spectra of
EPS MED17 demonstrated that this EPS was a dextran type glucan ((1→ 6)-linked α-D-
glucose core structure) containing (1→ 3)-linked α-D-glucose branches and proportion of
(1→ 6)-linked α-D-glucose units to (1→ 3)-linked α-D-glucose units was 94.3: 5.7%. The
FTIR analysis also confirmed the (1→ 6)-linked α-D-glucose linkage. A high level of thermal …
