METHOD FOR PRODUCING INULIN AND OTHER FRUCTAN-CONTAINING PRODUCTS FROM JERUSALEM ARTICHOKE

摘要

The invention relates to nanotechnology for the production of biologically active substances and can be used for producing inulin-based pharmaceutical preparations, biologically active food additives and fructan-containing products as ingredients of functional foods. A purified inulin-containing solution is obtained from an aqueous suspension of Jerusalem artichoke powder upon extraction of fructosans, filtration to remove the solid phase and bleaching with perlite. Once the purified inulin-containing solution has been boiled down, it is separated by nanofiltration through a nanofilter with a retention threshold of 5000-6000 Da into a solution containing low molecular weight fructosans and a solution containing high molecular weight inulins with a weight of 5000-6000 Da and a chain length of 1.48 nanometres. A solution containing fructooligosaccharides with a molecular mass of less than 5000 Da is separated from the boiled-down inulin-containing solution by nanofiltration on ceramic semi-permeable membranes in order to obtain inulin with nanoproperties which is suitable for use in medicine and pharmaceuticals, after which a solution containing fructooligosaccahrides with a molecular mass of more than 6000 Da is also separated off. The solutions containing fructooligosaccaharides with a molecular mass of less than 5000 and more than 6000 Da respectively are used to produce fructooligosaccaharides. A glucose-fructose syrup is also produced from the boiled-down inulin-containing solution.