Abstract
When Chlorella biomass was hydrolyzed in the presence of 2% HCl and 2.5% MgCl(2), a sugar concentration of nearly 12%, and a sugar recovery of about 83% was obtained. Fermentation experiments demonstrated that glucose in the Chlorella biomass hydrolysates was converted into ethanol by Saccharomyces cerevisiae with a yield of 0.47 g g(-1), which is 91% of the theoretical yield. This chemical hydrolysis approach is thus a novel route for the hydrolysis of biomass to generate fermentable sugars.
Copyright © 2011 Elsevier Ltd. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Biocatalysis / drug effects
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Biomass*
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Carbohydrate Metabolism / drug effects*
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Carbohydrates / analysis
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Chlorella / drug effects
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Chlorella / growth & development
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Chlorella / metabolism*
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Ethanol / chemical synthesis
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Fermentation / drug effects*
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Glucose / metabolism
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Hydrochloric Acid / pharmacology*
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Hydrolysis / drug effects
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Magnesium Chloride / pharmacology*
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Saccharomyces cerevisiae / drug effects
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Saccharomyces cerevisiae / growth & development
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Saccharomyces cerevisiae / metabolism
Substances
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Carbohydrates
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Magnesium Chloride
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Ethanol
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Glucose
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Hydrochloric Acid