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Two-stage electrodialytic concentration of glyceric acid from fermentation broth

Paper ID Volume ID Publish Year Pages File Format Full-Text
21713 43236 2010 6 PDF Available
Title
Two-stage electrodialytic concentration of glyceric acid from fermentation broth
Abstract

The aim of this research was the application of a two-stage electrodialysis (ED) method for glyceric acid (GA) recovery from fermentation broth. First, by desalting ED, glycerate solutions (counterpart is Na+) were concentrated using ion-exchange membranes, and the glycerate recovery and energy consumption became more efficient with increasing the initial glycerate concentration (30 to 130 g/l). Second, by water-splitting ED, the concentrated glycerate was electroconverted to GA using bipolar membranes. Using a culture broth of Acetobacter tropicalis containing 68.6 g/l of d-glycerate, a final D-GA concentration of 116 g/l was obtained following the two-stage ED process. The total energy consumption for the d-glycerate concentration and its electroconversion to D-GA was approximately 0.92 kWh per 1 kg of D-GA.

Keywords
Glycerol use; Glyceric acid concentration; Acetobacter tropicalis; Desalting electrodialysis; Water-splitting electrodialysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 110, Issue 6, December 2010, Pages 690–695
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
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