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Original Article | Open Access

Structural Characteristics of Cellulose and Xylan during in vitro Fermentation by Pig Fecal Bacteria

Ling Meng1, ShiLin Cao2, XiaoJuan Ma2, LiHui Chen2, LiuLian Huang2, Fang Huang2( )
Guangzhou Haisum Energy Technology Co., Ltd, Guangzhou, Guangdong Province, 511400, China
College of Materials Engineering, Fujian Agricultural and Forestry University, Fuzhou, Fujian Province, 350002, China
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Abstract

In this study, cellulose and xylan were in vitro fermented by pig fecal bacteria. Rapid fermentation (40 h) and extended fermentation (eight weeks) were performed. The properties and ultra-structure changes of post-fermented solid residues were studied. In the end effluent, acetic acid, propionic acid, and butyric acid were observed to be the principal short-chain fatty acids (SCFAs) produced by anaerobic fermentation. Xylan was more accessible to bacteria than cellulose, leading to higher SCFA and lactic acid production. In addition, the crystalline structure of cellulose changed, leading to 16.3% and 42.1% increases in crystallinity index for rapid and extended fermentation, respectively. Through this research, a systematic and advanced method to study the degradation chemistry of cellulose and xylan during fermentation was developed.

Keywords

cellulosexylanpig fecal bacteriain vitro fermentation

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Paper and Biomaterials
Volume 1 Issue 2,
October 2016
Pages 8-15
DOI: 10.26599/PBM.2016.9260010
Cite this article:
Meng L, Cao S, Ma X, et al. Structural Characteristics of Cellulose and Xylan during in vitro Fermentation by Pig Fecal Bacteria. Paper and Biomaterials, 2016, 1(2): 8-15. https://doi.org/10.26599/PBM.2016.9260010

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Received: 03 March 2016
Accepted: 04 July 2016
Published: 25 October 2016
© 2016 Published by Paper and Biomaterials Editorial Board

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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