"Using inulin and oligofructose with high-intensity sweeteners". Retrieved 14 July 2012. ↑ Lorenzoni, A; et al. 2014: Fructooligosaccharides synthesis by highly stable immobilized β-fructofuranosidase from Aspergillus aculeatus DOI: 10.1016/j.carbpol.2013.12.038 ↑ Hartemink, R.: Prebiotic effects of Non-digestible oligo- and polysaccharides.