Evaluation of biological pretreatments to increase the efficiency of the saccharification process using Spartina argentinensis as a biomass resource
| Autor: | Alvaro Santiago Larran, Hugo R. Permingeat, Susana Raquel Feldman, Emiliano Jozami, Florencio E. Podestá, Lionel R. Vicario |
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| Rok vydání: | 2015 |
| Předmět: |
Environmental Engineering
Biotecnología del Medio Ambiente Biomass Bioengineering INGENIERÍAS Y TECNOLOGÍAS Poaceae Lignin PRETREATMENTS BIOMASS Cattle feeding chemistry.chemical_compound Hydrolysis Bioenergy Animals Phosphoric Acids Cellulose Waste Management and Disposal Pycnoporus sanguineus Bioremediación Diagnóstico Biotecnológico en Gestión Medioambiental LIGNOCELLULOSE biology Renewable Energy Sustainability and the Environment Chemistry Fungi food and beverages General Medicine biology.organism_classification Enzymes Agronomy WHITE ROT FUNGI Biofuel Biofuels Fermentation Cattle SECOND GENERATION BIOETHANOL Biotechnology |
| Zdroj: | Bioresource Technology. 194:320-325 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2015.06.150 |
| Popis: | Second generation bioethanol obtained from native perennial grasses offers a promising alternative for biofuel production, avoiding land use competition for crops production. Spartina argentinensis is a native perennial C4 grass with high photosynthetic rates, well adapted to halo-hydromorphic soils, though its forage quality (palatability and digestibility) for livestock is quite low due to its high lignin content. Hence, cattle raisers burn these grasslands frequently in order to stimulate the emergence of new leaves with higher digestibility for cattle feeding. Lignin is the main barrier to overcome in order to efficiently hydrolyze the cellulose for bioethanol production. In this work, we evaluate different pretreatments (phosphoric acid, ligninolytic enzymes and fungal supernatants) aimed to remove lignin and improving cellulose hydrolysis efficiency. Results show that pretreatment with Pycnoporus sanguineus supernatant improves fermentable carbohydrates availability, compared with a conventional chemical pretreatment, and that 56.84% of cellulose can be hydrolyzed using this pretreatment. Fil: Larran, Alvaro Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Jozami, Emiliano. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Vicario, Lionel. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina Fil: Feldman, Susana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Podesta, Florencio Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina Fil: Permingeat, Hugo Raúl. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina |
| Databáze: | OpenAIRE |
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