title: Enhancing ethanol fermentability of an artificial acid hydrolyzate with anion exchange resin treatment.
abstract: To assess the effectiveness of anion exchange resins (Dowex M43 and Dowex monosphere 66) in neutralization and detoxification of an acid hydrolyzate solution, a fermentation medium containing inhibitors was inoculated with Saccharomyces cerevisiae. When treated with resins at a 1:1 ratio (vol:wt) for up to 20 min, 55-67% of furan and more than 95% of phenolic compounds were removed. Ethanol fermentation activity in resin-treated fermentation medium was the same as the control. There was 21-43% of the total sugar loss after one resin treatment, depending on the sugar concentration. Additional treatments increased sugar retention rate to 95%.
authors.affiliation: Department of Biology, Jackson State University, Jackson, MS 39217, USA.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Gao
authors.forename: Jennifer
authors.initials: J
authors.lastname: Ntoni
authors.forename: Maria F T
authors.initials: MF
authors.lastname: Begonia
authors.forename: Ken S
authors.initials: KS
authors.lastname: Lee
authors.forename: Huey-Min
authors.initials: HM
authors.lastname: Hwang
mesh_terms: D000143:Acids / Q000737:chemistry; D000837:Anion Exchange Resins / Q000737:chemistry*; D019149:Bioreactors / Q000382:microbiology*; D018929:Cell Culture Techniques / Q000379:methods; D000431:Ethanol / Q000737:chemistry / Q000378:metabolism*; D005285:Fermentation; D005662:Furaldehyde / Q000031:analogs & derivatives* / Q000737:chemistry; D005947:Glucose / Q000378:metabolism*; D006868:Hydrolysis; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D014934:Wood / Q000382:microbiology*
chemical_list: D000143:Acids; D000837:Anion Exchange Resins; D000431:Ethanol; C008046:5-hydroxymethylfurfural; D005662:Furaldehyde; D005947:Glucose