Abstract More and more attention has been paid to the research, development and application of functional oligosaccharides as bifidus factors. At present, it has been proved that oligosaccharides with special healthy function include fructo-oligosaccharides, iso-malto oligosaccharides, xylo-oligosaccharides, soybean oligosaccharides and galacto-oligosaccharides. This paper introduces the chemical composition,
special property, preparation methods and application of several important oligosaccharides.
