Enhancing ethanol fermentability of an artificial acid hydrolyzate with anion exchange resin treatment.
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%.
Zhang
Yi
Y
Department of Biology, Jackson State University, Jackson, MS 39217, USA.
Gao
Jun
J
Ntoni
Jennifer
J
Begonia
Maria F T
MF
Lee
Ken S
KS
Hwang
Huey-Min
HM
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*
D000143:Acids; D000837:Anion Exchange Resins; D000431:Ethanol; C008046:5-hydroxymethylfurfural; D005662:Furaldehyde; D005947:Glucose