Publicación: UPCYCLING AGRO-INDUSTRIAL BLUEBERRY WASTE INTO PLATFORM CHEMICALS AND STRUCTURED MATERIALS FOR APPLICATION IN MARINE ENVIRONMENTS
Fecha
2022
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Editor
GREEN CHEMISTRY
Resumen
BLUEBERRY PRUNING WASTE (BPW), SOURCED AS RESIDUES FROM AGROFORESTRY OPERATIONS IN CHILE, WAS USED TO PRODUCE ADDED-VALUE PRODUCTS, INCLUDING PLATFORM CHEMICALS AND MATERIALS. BPW FRACTIONATION WAS IMPLEMENTED USING BIOBASED SOLVENTS (?-VALEROLACTONE, GVL) AND PYROLYSIS (500 °C), YIELDING SOLID FRACTIONS THAT ARE RICH IN PHENOLS AND ANTIOXIDANTS. THE LIQUID FRACTION WAS FOUND TO BE ENRICHED IN SUGARS, ACIDS, AND AMIDES. ALONGSIDE, FILAMENTS AND 3D-PRINTED MESHES WERE PRODUCED VIA WET SPINNING AND DIRECT-INK-WRITING (DIW), RESPECTIVELY. FOR THE LATTER PURPOSE, BPW WAS DISSOLVED IN AN IONIC LIQUID, 1-ETHYL-3-METHYLIMIDAZOLIUM ACETATE ([EMIM][OAC]), AND REGENERATED INTO LIGNOCELLULOSE FILAMENTS WITH HIGHLY ALIGNED NANOFIBRILS (WIDE-ANGLE X-RAY SCATTERING) THAT SIMULTANEOUSLY SHOWED EXTENSIBILITY (WET STRAIN AS HIGH AS 39%). BPW-DERIVED LIGNOCELLULOSE FILAMENTS SHOWED A TENACITY (UP TO 2.3 CN DTEX?1) THAT IS COMPARABLE TO THAT OF RAYON FIBERS AND SHOWED LOW LIGHT REFLECTANCE (RES FACTOR
