The structure of the exopolysaccharide produced by Lactobacillus helveticus 766.
The exopolysaccharide produced by Lactobacillus helveticus 766 in skimmed milk was found to be composed of D-glucose and D-galactose in a molar ratio of 2:1. Linkage analysis and 1D/2D NMR studies (1H and 13C) performed on the native polysaccharide, and on oligosaccharides obtained from a partial acid hydrolysate, showed the polysaccharide to consist of hexasaccharide repeating units with the following structure: [formula: see text]
Bijvoet Center, Department of Bio-Organic Chemistry, Utrecht University, The Netherlands.
G W
GW
Robijn
J R
JR
Thomas
H
H
Haas
D J
DJ
van den Berg
J P
JP
Kamerling
J F
JF
Vliegenthart
D002240:Carbohydrate Sequence; D006868:Hydrolysis; D007778:Lactobacillus / Q000737:chemistry* / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D009005:Monosaccharides / Q000032:analysis; D011135:Polysaccharides, Bacterial / Q000096:biosynthesis / Q000737:chemistry* / Q000302:isolation & purification
D009005:Monosaccharides; D011135:Polysaccharides, Bacterial