Sucrose fructan Oligomers is a very important form of oligosaccharide,existing in onion,fragrant spring onion,burdock,Jerusalem artichoke,banana,wheat,rye and oats in varied forms. The content of the oligosaccharide in chrysanthemum powder is the most abundant among them, sharing 70%-80% of the tuber's dry weight. Natural Sucrose fructan Oligomers forms is produced by the actity of the fructose radicle transferases in microorganism or the plant.Nowadays, Sucrose fructan Oligomers is mainly obt...