title: Enhancement of starting up anaerobic digestion of lignocellulosic substrate: fique's bagasse as an example.
abstract: In Colombia there are 20,000 ha of fique fields (Furcraea sp., family Agavaceae), that produce around 93,400 tons of fique's bagasse per year. These residuals are disposed into rivers and soil causing pollution. According to physicochemical characteristics, the lignocellulosic residues from fique crops (fique's bagasse) are appropriate carbon source to biogas production. Anaerobic digestion from fique's Bagasse (FB) requires a specialized microbial consortium capable of degrading its high lignocellulosic concentration. In this study, the capacities of seven microbial consortia for biomethane potential (BMP) from FB were evaluated. Inoculum of ruminal liquid achieved high hydrolytic activity (0.068 g COD/g VSS day), whereas pig waste sludge inoculum showed high methanogenic activity (0.146 g COD/g VSS day). Mixtures of these two inoculums (RL+PWS) showed the best yields for biomethane potential (0.3 m(3) CH4/Kg VS ad).
authors.affiliation: Escuela de Bacteriología y Laboratorio Clínico Grupo de investigación en Bioquímica y Microbiología, Universidad Industrial de Santander, AA, 678 Bucaramanga, Colombia.
authors.forename: Mabel
authors.initials: M
authors.lastname: Quintero
authors.forename: Liliana
authors.initials: L
authors.lastname: Castro
authors.forename: Claudia
authors.initials: C
authors.lastname: Ortiz
authors.forename: Carolina
authors.initials: C
authors.lastname: Guzmán
authors.forename: Humberto
authors.initials: H
authors.lastname: Escalante
mesh_terms: D000818:Animals; D001421:Bacteria, Anaerobic / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D056804:Biofuels; D002417:Cattle; D003105:Colombia; D004063:Digestion; D008031:Lignin / Q000378:metabolism*; D019668:Liliaceae / Q000737:chemistry*; D012417:Rumen / Q000382:microbiology; D012722:Sewage / Q000382:microbiology; D013552:Swine
chemical_list: D056804:Biofuels; D012722:Sewage; C036909:lignocellulose; D008031:Lignin