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Fermentation of glucose/xylose mixtures using Pichia stipitis

Paper ID Volume ID Publish Year Pages File Format Full-Text
36117 45121 2006 4 PDF Available
Title
Fermentation of glucose/xylose mixtures using Pichia stipitis
Abstract

Different synthetic glucose/xylose mixtures (60 g/L total sugar) were fermented into ethanol using P. stipitis CBS 6054. Glucose was the preferred substrate in the glucose/xylose mixtures. The high glucose fractions had higher cell biomass production rate and therefore higher substrate consumption rate and ethanol production rate compared to high xylose fractions. However, the high xylose fractions had a slightly higher ethanol yields compared to the high glucose fractions because the substrate was channeled into ethanol production rather the cell biomass. The maximum ethanol concentration was 22.7 and 24.3 g/L in 60 g/L glucose and xylose media, respectively. Using the same initial cell concentration of 2 g/L, fermentation was complete after 96 h of fermentation in 100% glucose (60 g/L), and after 120 h of fermentation in 100% xylose (60 g/L).

Keywords
Biomass; Ethanol; Pichia stipitis; Glucose; Xylose
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 11, November 2006, Pages 2333–2336
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Any Questions? feel free to contact us