We have evaluated the production potential of bionanofibils from different industrial bio-residues: wastes from the juice industry (carrot) and beer producton (brewery-spent-grain) The mechanical separation of the nanofibrils was made using ultrafine grinding. The carrot residue was more easily bleached and less energy was needed during the grinding, using only 0.9 kWh/kg compared to 21 kWh/kg for the BSG, moreover, the dried nanofiber networks showed high mechanical properties, with an average modulus and strength of 12.9 GPa and 210 MPa, respectively, thus indicating a homogeneous nanosize distribution. We have also used these fibers for preparation of composite materials. The study showed that carrot residue has great potential for the industrial production of cellulose nanofibers due to its high quality, processing efficiency, and low raw material cost.<br/>

Energy efficient separation process of nanofibrils from bioresidues and their use in biocomposites

253rd National Meeting (2017)

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