alexa Fermentation of Arabinoxylan-Oligosaccharides, Oligofructose and their Monomeric Sugars by Hindgut Bacteria from Siberian Sturgeon and African Catfish in Batch Culture in vitro | Abstract
ISSN: 2155-9546

Journal of Aquaculture Research & Development
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Research Article

Fermentation of Arabinoxylan-Oligosaccharides, Oligofructose and their Monomeric Sugars by Hindgut Bacteria from Siberian Sturgeon and African Catfish in Batch Culture in vitro

Zahra Geraylou1, Eugene Rurangwa1,2, Tom Van De Wiele3, Christophe M Courtin4, Jan A Delcour4, Johan Buyse5* and Frans Ollevier1

1Laboratory of Aquatic Ecology, Evolution and Conservation, KU Leuven, Leuven, Belgium

2Institute for Marine Resources and Ecosystem Studies (IMARES), Wageningen UR, Yerseke, The Netherlands

3Laboratory of Microbial Ecology and Technology, Ghent University, Ghent, Belgium

4Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium

5Laboratory of Livestock Physiology, Immunology and Genetics, Department of Biosystems, Faculty of Bioscience Engineering, KU Leuven, Belgium

*Corresponding Author:
Johan Buyse
Laboratory of Livestock Physiology
Immunology and Genetics, Department of Biosystems
Faculty of Bioscience Engineering, KU Leuven, Belgium
Tel: +3216328525
Fax: +3216321994
E-mail: [email protected]

Received Date: March 14, 2014; Accepted Date: May 03, 2014; Published Date: May 10, 2014

Citation: Geraylou Z, Rurangwa E, De Wiele TV, Courtin CM, Delcour JA, et al. (2014) Fermentation of Arabinoxylan-Oligosaccharides, Oligofructose and their Monomeric Sugars by Hindgut Bacteria from Siberian Sturgeon and African Catfish in Batch Culture in vitro. J Aquac Res Development 5:230 doi:10.4172/2155-9546.1000230

Copyright: © 2014 Geraylou Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The in vitro fermentation of two Non-Digestible Oligosaccharide (NDO) preparations, Arabinoxylan-
Oligosaccharides (AXOS) and Oligofructose (OF), and their respective monomeric sugars, xylose and fructose, were investigated by hindgut microbiota of two major aquaculture fish species, Siberian sturgeon (Acipenser baerii) and African catfish (Clarias gariepinus). Inocula from the hindgut of both fish species were incubated for 48 h in bottles containing 1.0% of one of four substrates, i.e. AXOS, OF, xylose or fructose. Amounts and profiles of produced Short-Chain Fatty Acids (SCFAs) differed between the two fish species and substrates. The hindgut microbiota of Siberian sturgeon has a higher fermentation capacity than the microbiota from African catfish. Xylose was much easier fermented than AXOS by microbiota from Siberian sturgeon whereas OF was quicker fermented than fructose with African catfish inoculum. The SCFAs were dominated by acetic acid for both fish species and for all substrates. Fermentation of OF and fructose by hindgut microbiota of Siberian sturgeon also yielded high amounts of butyric and branched-chain fatty acids after 48 h incubation. Results of this study suggest that AXOS, OF, and their monomeric sugars have an impact on microbial fermentation activity of hindgut microbiota from Siberian sturgeon and African catfish in a substrate and species dependent manner.

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