title: Pretreatment of olive tree biomass with FeCl3 prior enzymatic hydrolysis.
abstract: Olive tree biomass (OTB) is an agricultural residue which can be used as raw material for bioethanol production. OTB was pretreated with 0.05-0.275 M FeCl(3) solutions at 120-180 °C for 0-30 min. Enzymatic hydrolysis yields were used for assessing pretreatment performance. Optimum FeCl(3) pretreatment conditions were found to be 152.6 °C, 0.26 M FeCl(3) for 30 min. Under such conditions, 100% of hemicellulose was removed, and enzymatic hydrolysis of pretreated solids resulted in a yield of 36.6g glucose/100g of glucose in the raw material. Hemicellulosic sugar recovery in the prehydrolysate was 63.2%. Results compare well with those obtained by other pretreatment strategies on the same raw material, confirming FeCl(3) solutions as a new, feasible approach for bioethanol production.
authors.affiliation: Dept of Chemical, Environmental and Materials Engineering, University of Jaén, Campus Las Lagunillas, 23071 Jaén, Spain.
authors.forename: Juan C
authors.initials: JC
authors.lastname: López-Linares
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Romero
authors.forename: Manuel
authors.initials: M
authors.lastname: Moya
authors.forename: Cristóbal
authors.initials: C
authors.lastname: Cara
authors.forename: Encarnación
authors.initials: E
authors.lastname: Ruiz
authors.forename: Eulogio
authors.initials: E
authors.lastname: Castro
mesh_terms: D002480:Cellulase / Q000737:chemistry*; D002712:Chlorides / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D005947:Glucose / Q000138:chemical synthesis*; D006868:Hydrolysis; D007220:Industrial Waste / Q000517:prevention & control*; D031658:Olea / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry*
chemical_list: D002712:Chlorides; D005290:Ferric Compounds; D007220:Industrial Waste; D011134:Polysaccharides; C007916:hemicellulose; D002480:Cellulase; D005947:Glucose; C024555:ferric chloride