AOAC SPSFAM Meeting Book 9-24

9/21/2017

Dietary Fructans in the Animal Diet ▪ Because of the potential nutritional and claimed prebiotic effects of fructan, there is interest in being able to accurately measure fructan in feedstuffs for use in diet formulation. ▪ Comprise a substantial (20%) or minor (<1%) portion of animal feedstuffs of plant or blended origin.

Current Analysis Methods ▪ Currently two AOAC methods for fructan in foods (999.03 and 997.08); however, not fit-for-purpose for animal food. ▪ Acid hydrolysis is more effective than use of inulinase (effective on inulin) for analysis of fructans in cool season grasses. ▪ Hydrolysis of current methods may be modified for use in animal food

6