TY - JOUR
T1 - Upcycling agro-industrial blueberry waste into platform chemicals and structured materials for application in marine environments
AU - Reyes, Guillermo
AU - Pacheco, Claudia M.
AU - Isaza-Ferro, Estefania
AU - González, Amaidy
AU - Pasquier, Eva
AU - Alejandro-Martín, Serguei
AU - Arteaga-Peréz, Luis E.
AU - Carrillo, Romina R.
AU - Carrillo-Varela, Isabel
AU - Mendonça, Regis Teixeira
AU - Flanigan, Colleen
AU - Rojas, Orlando J.
N1 - This journal is © The Royal Society of Chemistry.
PY - 2022/5/10
Y1 - 2022/5/10
N2 - 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 (γ-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 <3%). Meanwhile, DIW of the respective gels led to meshes with up to 60% wet stretchability. The LCF and meshes were demonstrated to have reliable performance in marine environments. As a demonstration, we show the prospects of replacing plastic cords and other materials used to restore coral reefs on the coast of Mexico.
AB - 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 (γ-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 <3%). Meanwhile, DIW of the respective gels led to meshes with up to 60% wet stretchability. The LCF and meshes were demonstrated to have reliable performance in marine environments. As a demonstration, we show the prospects of replacing plastic cords and other materials used to restore coral reefs on the coast of Mexico.
UR - http://www.scopus.com/inward/record.url?scp=85129751775&partnerID=8YFLogxK
U2 - 10.1039/d2gc00573e
DO - 10.1039/d2gc00573e
M3 - Article
C2 - 35694220
AN - SCOPUS:85129751775
SN - 1463-9262
VL - 24
SP - 3794
EP - 3804
JO - Green Chemistry
JF - Green Chemistry
IS - 9
ER -