title: Continuous bioethanol production from oilseed rape straw hydrosylate using immobilised Saccharomyces cerevisiae cells.
abstract: The aim of the study was to evaluate continuous bioethanol production from oilseed rape (OSR) straw hydrolysate using Saccharomyces cerevisiae cells immobilised in Lentikat® discs. The study evaluated the effect of dilution rate (0.25, 0.50, 0.75 and 1.00 h(-1)), substrate concentration (15, 22, 40 and 60 g L(-1)) and cell loading (0.03, 0.16 and 0.24 g d.c.w.mL(-1) Lentikat®) on bioethanol production. Volumetric productivity was found to increase with increasing substrate concentration from 15 g L(-1) to 60 g L(-1). A maximum volumetric productivity of 12.88 g L(-1)h(-1) was achieved at a substrate concentration of 60 g L(-1) and at a dilution rate of 0.5h(-1). An overall mass balance for bioethanol production was created to determine the energy recovery from bioethanol and concluded that a biorefinery approach might be the most appropriate option for maximising the energy recovery from OSR straw.
authors.affiliation: Crops Department, Harper Adams University College, Newport, Shropshire TF10 8NB, UK. Electronic address: amathew@harper-adams.ac.uk.
authors.forename: Anil Kuruvilla
authors.initials: AK
authors.lastname: Mathew
authors.affiliation: Crops Department, Harper Adams University College, Newport, Shropshire TF10 8NB, UK.
authors.forename: Mitch
authors.initials: M
authors.lastname: Crook
authors.affiliation: Crops Department, Harper Adams University College, Newport, Shropshire TF10 8NB, UK.
authors.forename: Keith
authors.initials: K
authors.lastname: Chaney
authors.affiliation: Crops Department, Harper Adams University College, Newport, Shropshire TF10 8NB, UK.
authors.forename: Andrea Clare
authors.initials: AC
authors.lastname: Humphries
mesh_terms: D056804:Biofuels / Q000382:microbiology*; D019149:Bioreactors / Q000382:microbiology; D001709:Biotechnology / Q000379:methods*; D029741:Brassica rapa / Q000737:chemistry*; D018914:Cells, Immobilized / Q000166:cytology / Q000378:metabolism; D000431:Ethanol / Q000378:metabolism*; D005229:Fatty Acids, Monounsaturated; D005947:Glucose / Q000378:metabolism; D006868:Hydrolysis; D007700:Kinetics; D010938:Plant Oils / Q000737:chemistry*; D000074262:Rapeseed Oil; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D014866:Waste Products
chemical_list: D056804:Biofuels; D005229:Fatty Acids, Monounsaturated; D010938:Plant Oils; D000074262:Rapeseed Oil; D014866:Waste Products; D000431:Ethanol; D005947:Glucose
keywords: Bioethanol; Fermentation; Immobilisation; Oilseed rape straw