Pretreatment of olive tree biomass with FeCl₃ prior enzymatic hydrolysis

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• 作者：Juan C. L&#243 ; pez-Linares ; Inmaculada Romero ; ^{iromero@ujaen.es} ; Manuel Moya ; Crist&#243 ; bal Cara ; Encarnaci&#243 ; n Ruiz ; Eulogio Castro
• 关键词：OTB ; olive tree biomass ; WIS ; water-insoluble solid ; SR ; solid recovery ; CS0 ; combined severity ; CR0 ; combined severity factor ; R0 ; severity factor ; GRS ; glucose recovery in solid fraction ; HSRS ; hemicellulosic sugars recovery in solid fraction ; GRL ; gluc
• 刊名：Bioresource Technology
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：128
• 期：Complete
• 页码：180-187
• 全文大小：584 K

文摘

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 FeCl₃ solutions at 120-180 ¡ãC for 0-30 min. Enzymatic hydrolysis yields were used for assessing pretreatment performance. Optimum FeCl₃ pretreatment conditions were found to be 152.6 ¡ãC, 0.26 M FeCl₃ for 30 min. Under such conditions, 100 % of hemicellulose was removed, and enzymatic hydrolysis of pretreated solids resulted in a yield of 36.6 g glucose/100 g 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 FeCl₃ solutions as a new, feasible approach for bioethanol production.