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Fructooligosaccharides production by Aspergillus sp. N74 in a mechanically agitated airlift reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
19442 43065 2008 7 PDF Available
Title
Fructooligosaccharides production by Aspergillus sp. N74 in a mechanically agitated airlift reactor
Abstract

Batch fructooligosaccharides (FOSs) production by fructosyltransferase from Aspergillus sp. N74 in a mechanically agitated airlift reactor was investigated. Two biomass concentrations (6 and 9.5 g L−1 in biomass dry weight) of Aspergillus sp. N74 were used for the evaluation of fructosyltransferase activity. The enzymatic reactions were carried out at the following conditions: initial sucrose concentration 70% (w/v), pH 5.5, 60 °C, 350 rpm, and superficial aeration rate 0.012 m s−1; the reactor was operated in batch for 26 h. A biomass concentration and time reaction effect on FOS production and composition was observed. The obtained FOS yield (YFOS) for 6 g L−1 of biomass dry weight was 69% (43% 1-kestose and 26% nystose), while for 9.5 g L−1 of biomass dry weight a peak in the YFOS of 70% was observed (43% 1-kestose, 25% nystose and 2% 1-β-fructorianosyl nystose) after 4 h of reaction, which was reduced to the 57% (18% 1-kestose, 33% nystose and 6% 1-β-fructofuranosyl nystose) at the end of the reaction time. These results present the designed reactor and the native strain Aspergillus sp. N74 as an industrial alternative for the fructooligosaccharides production.

Keywords
Fructosyltransferase; Fructooligosaccharides; Aspergillus sp.
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Fructooligosaccharides production by Aspergillus sp. N74 in a mechanically agitated airlift reactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 86, Issue 2, June 2008, Pages 109–115
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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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
Any Questions? feel free to contact us