Based ion exchange process for recovery in separate streams of lactic acid and oligomeric carbohydrates from fermentation media.

摘要

The present invention, entitled? Process based on ion exchange in separate recovery of lactic acid and oligomeric carbohydrates from fermentative media streams ?, claims a procedure for the separation of compounds of commercial interest (lactic acid and oligomeric compounds derived from pectins prebiotic capacity) from media obtained by hydrolysis and fermentation of apple pomace. The hydrolysis is conducted by enzymes, and fermentation takes place by the action of lactic bacteria. These steps may be performed sequentially or simultaneously. Before fermentation medium must be added to permit adequate nutrients for the metabolism of lactic acid bacteria. Fermented media are treated with ion exchange resins in charge cycles-feedback, so that lactic acid selectively binds to the resin during the loading cycle (releasing an enriched oligomeric compounds derived from carbohydrates effluent), while the regeneration cycle provides a lactic acid enriched effluent. Prebiotic capabilities of oligomeric compounds derived from carbohydrates which are obtained in the process is experimentally confirmed by anaerobic fermentations inoculated with stool, where the production of short-chain fatty acid is observed means.