The project ran between September 2017 and August 2021.
The overall aim of the project was the production of low-cost food-grade prebiotic cello-oligosacharides (COS) from non-edible resources. To achieve this, we developed novel processes to be combined to those already established for the valorization of cellulose from forest residues, as well as the cellulosic outer tunic of marine invertebrate Ciona intestinalis. By using an initial organosolv pretreatment step for the efficient fractionation of biomass to its constituents, together with controlled enzymatic processes, efficient production of COS was achieved. Product recovery was achieved through nanofiltration and freeze-drying. The final samples were tested as fermentative substrates for different probiotic bacteria, as well as for their ability to inhibit growth of pathogenic gut strains. Finally, prebiotic effect of COS was assessed on rainbow trout, towards the application in aqua feed for sustainable fish farming.
Participants
Biochemical Process Engineering, Luleå University of Technology, Marin Biogas AB, Sveaskog Förvaltnings AB, Essum AB, Swedish University of Agricultural Sciences, Department of Animal Nutrition and Management, Uppsala, LTU Business AB and Dyrka AB.
Budget
The project’s budget was 7,7 MSEK.
Read about the project’s results in this final report.
