title: Alkaline pre-treatment of oilseed rape straw for bioethanol production: evaluation of glucose yield and pre-treatment energy consumption.
abstract: The objective of the research was to investigate the effect of biomass loading, alkali (NaOH) concentration and pre-treatment time on the yield of glucose obtained following alkaline pre-treatment and enzymatic hydrolysis of oilseed rape (OSR) straw. A maximum glucose yield of (440.6 ± 14.9)g glucose kg(-1) biomass was obtained when OSR straw was pre-treated at a biomass loading of 50 g kg(-1) and an alkali concentration of 0.63 mol dm(-3) NaOH for 30 min. The energy efficiency of glucose extraction (0.39 kg glucose MJ(-1) consumed) was highest when OSR straw was pre-treated at a biomass loading of 50 g kg(-1) and an alkali concentration of 0.63 or 0.75 mol dm(-3) for 30 min. The study demonstrated alkaline pre-treatment of OSR straw is superior to acid pre-treatment in terms of glucose yield and energy efficiency.
authors.affiliation: Harper Adams University College, Newport, Shropshire, TF10 8NB, UK. amathew@harper-adams.ac.uk
authors.forename: Anil Kuruvilla
authors.initials: AK
authors.lastname: Mathew
authors.forename: Keith
authors.initials: K
authors.lastname: Chaney
authors.forename: Mitch
authors.initials: M
authors.lastname: Crook
authors.forename: Andrea Claire
authors.initials: AC
authors.lastname: Humphries
mesh_terms: D056804:Biofuels / Q000032:analysis*; D018533:Biomass; D029741:Brassica rapa / Q000737:chemistry*; D002480:Cellulase / Q000378:metabolism; D004734:Energy Metabolism / Q000187:drug effects*; D000431:Ethanol / Q000138:chemical synthesis*; D005947:Glucose / Q000096:biosynthesis*; D006868:Hydrolysis / Q000187:drug effects; D008049:Lipase / Q000378:metabolism; D012972:Sodium Hydroxide / Q000494:pharmacology*; D013997:Time Factors; D014866:Waste Products / Q000032:analysis*
chemical_list: D056804:Biofuels; D014866:Waste Products; D000431:Ethanol; D012972:Sodium Hydroxide; D008049:Lipase; D002480:Cellulase; D005947:Glucose