title: Ethanol production by Saccharomyces cerevisiae using lignocellulosic hydrolysate from Chrysanthemum waste degradation.
abstract: Ethanol production derived from Saccharomyces cerevisiae fermentation of a hydrolysate from floriculture waste degradation was studied. The hydrolysate was produced from Chrysanthemum (Dendranthema grandiflora) waste degradation by Pleurotus ostreatus and characterized to determine the presence of compounds that may inhibit fermentation. The products of hydrolysis confirmed by HPLC were cellobiose, glucose, xylose and mannose. The hydrolysate was fermented by S. cerevisiae, and concentrations of biomass, ethanol, and glucose were determined as a function of time. Results were compared to YGC modified medium (yeast extract, glucose and chloramphenicol) fermentation. Ethanol yield was 0.45 g g(-1), 88 % of the maximal theoretical value. Crysanthemum waste hydrolysate was suitable for ethanol production, containing glucose and mannose with adequate nutrients for S. cerevisiae fermentation and low fermentation inhibitor levels.
authors.affiliation: Grupo de Biotecnología Ambiental e Industrial (GBAI), Laboratorio de Biotecnología Aplicada, Departamento de Microbiología, Pontificia Universidad Javeriana, Bogotá, Colombia. bquevedo@javeriana.edu.co
authors.forename: Balkys
authors.initials: B
authors.lastname: Quevedo-Hidalgo
authors.forename: Felipe
authors.initials: F
authors.lastname: Monsalve-Marín
authors.forename: Paulo César
authors.initials: PC
authors.lastname: Narváez-Rincón
authors.forename: Aura Marina
authors.initials: AM
authors.lastname: Pedroza-Rodríguez
authors.forename: Mario Enrique
authors.initials: ME
authors.lastname: Velásquez-Lozano
mesh_terms: D000363:Agaricales / Q000378:metabolism*; D018533:Biomass; D002482:Cellulose / Q000378:metabolism*; D031202:Chrysanthemum / Q000378:metabolism*; D003470:Culture Media; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005947:Glucose / Q000378:metabolism; D006868:Hydrolysis; D007218:Industrial Microbiology / Q000379:methods*; D008031:Lignin / Q000378:metabolism*; D008358:Mannose / Q000378:metabolism; D018515:Plant Leaves / Q000378:metabolism; D018547:Plant Stems / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000378:metabolism*
chemical_list: D003470:Culture Media; D000431:Ethanol; D002482:Cellulose; D008031:Lignin; D005947:Glucose; D008358:Mannose