ABSTRACT

The extensive changes in nutrition concepts based on the increased understanding of various functional effects as a result of interactions between a food component and physiological functions have led to a much-appreciated and well-pursued link between colonic nutrition and human health. The radical change from a past emphasis on the absence of adverse effects to the recent prominence on the promising use of foods, thereby promoting a state of well-being, better health, and reduction of the risk of diseases, is the driving force and key factor in the present scenario. The current nutrition science has its foundation on the hypothesis that, beyond providing nutrition, diet may also modulate various functions in the body. This has led to the understanding of various functional effects that are the positive consequences of the interactions between a food component and speci‚c genomic, biochemical, cellular, or physiological

24.1 Introduction ..................................................................................................................................561 24.2 Fructans....................................................................................................................................... 562 24.3 Chemical Structure ..................................................................................................................... 563 24.4 Common Fructans....................................................................................................................... 564 24.5 Fructan Biosynthesis ................................................................................................................... 566 24.6 Industrial Production .................................................................................................................. 567 24.7 Role in Food, Physiological Roles .............................................................................................. 568 24.8 Functional Properties .................................................................................................................. 568

24.8.1 Dietary Fiber Effect ....................................................................................................... 568 24.8.2 Prebiotic Effect .............................................................................................................. 569 24.8.3 Lipid-Lowering Effect ................................................................................................... 570 24.8.4 Effect on Mineral Absorption ....................................................................................... 570 24.8.5 FOS in Defense Functions ..............................................................................................571 24.8.6 Anticancer Effect............................................................................................................571 24.8.7 Health Bene‚ts and Production of Nutrients ................................................................ 572 24.8.8 Low Calori‚c Value and Noncariogenicity ................................................................... 572

24.9 Metabolic Fate of Fructans ......................................................................................................... 572 24.10 Dosage and Side Effects ............................................................................................................. 573 24.11 Market Trend ................................................................................................................................574 24.12 Analysis of Fructans ....................................................................................................................574