title: Pyrolysis of sunflower seed hulls for obtaining bio-oils.
abstract: Bio-oils from pyrolysis of as received sunflower seed hulls (SSH), hulls previously washed with acid (SSHA) and hulls submitted to a mushroom enzymatic attack (BSSH) were analyzed. The concentration of lignin, hemicellulose and cellulose varied with the pre-treatment. The liquid corresponding to SSH presented a relatively high concentration of acetic acid and a high instability to storage. The bio-oil from SSHA showed a high concentration of furfural and an appreciable amount of levoglucosenone. Lignin was degraded upon enzymatic activity, for this reason BSSH led to the highest yield of bio-oil, with relative high concentration of acetic acid and stability to storage.
authors.affiliation: Planta Piloto de Ingeniería Química, PLAPIQUI (CONICET-UNS), Camino La Carrindanga Km 7, CC 717, 8000 Bahía Blanca, Argentina. Electronic address: acasoni@plapiqui.edu.ar.
authors.forename: Andrés I
authors.initials: AI
authors.lastname: Casoni
authors.affiliation: Centro de Recursos Naturales Renovables de la Zona Semiárida, CERZOS (CONICET), Camino La Carrindanga Km 7, 8000 Bahía Blanca, Argentina.
authors.forename: Maximiliano
authors.initials: M
authors.lastname: Bidegain
authors.affiliation: Departamento de Biología, Bioquímica y Farmacia de la Universidad Nacional del Sur, San Juan 670, 8000 Bahía Blanca, Argentina.
authors.forename: María A
authors.initials: MA
authors.lastname: Cubitto
authors.affiliation: Departamento de Biología, Bioquímica y Farmacia de la Universidad Nacional del Sur, San Juan 670, 8000 Bahía Blanca, Argentina.
authors.forename: Nestor
authors.initials: N
authors.lastname: Curvetto
authors.affiliation: Planta Piloto de Ingeniería Química, PLAPIQUI (CONICET-UNS), Camino La Carrindanga Km 7, CC 717, 8000 Bahía Blanca, Argentina.
authors.forename: María A
authors.initials: MA
authors.lastname: Volpe
mesh_terms: D000363:Agaricales / Q000201:enzymology; D056804:Biofuels; D018533:Biomass; D001709:Biotechnology / Q000379:methods*; D002606:Charcoal / Q000737:chemistry; D004055:Differential Thermal Analysis; D005740:Gases / Q000737:chemistry; D006368:Helianthus / Q000737:chemistry*; D006358:Hot Temperature; D012639:Seeds / Q000737:chemistry*; D013464:Sulfuric Acids / Q000494:pharmacology; D013818:Thermogravimetry; D014866:Waste Products / Q000032:analysis*
chemical_list: D056804:Biofuels; D005740:Gases; D013464:Sulfuric Acids; D014866:Waste Products; C540010:biochar; D002606:Charcoal; C033158:sulfuric acid
keywords: Bio-oil; Bio-transformation; Biomass; Pyrolysis; Sunflower seeds hulls