Jerusalem artichoke ordinarily called Yang Jiang,Guizi jiang,belong to composite and are the member of helianthus genus,native to North America,and has a long history in China.Jerusalem artichoke has great flexibility and the planting technics is simple,Traditionally people use the fruit of erusalem artichoke as food.Recent years,with the advanced technics it have been processed into Fructo-oligo-saccharide(FOS),Inulin and exceed fructose and have been regarded as nutritional material.The experiment ...