DETERMINATION OF INULIN AND OLIGOFRUCTOSE IN FOOD-PRODUCTS, AND INTEGRATION IN THE AOAC METHOD FOR MEASUREMENT OF TOTAL DIETARY FIBER

For food labelling and control purposes of inulin- and oligofructose-c ontaining food products, a specific method which involves enzymic hydr olysis followed by high performance anion exchange chromatography has been developed. The soluble dietary fibre fraction obtained from comme rcial food products by the AOAC dietary fibre method has been tested f or the quantitative assessment of its inulin or oligofructose content. A modification of the AOAC method is proposed to quantitatively inclu de beta-fructans in the determination of the soluble dietary fibre fra ction.