Inulin

A substance of very wide occurrence It is found dissolved in the sap of the roots and rhizomes of many composite and other plants as Inula Helianthus Campanula etc and is extracted by solution as a tasteless white semicrystalline substance resembling starch with which it is isomeric having fructose units in place of most of the glucose units It is intermediate in nature between starch and sugar and replaces starch as the reserve food in Compositae Called also dahlin helenin alantin alant starch etc