Xanthan production with the hydrolysate of wheat straw

DOI

10.2991/icmse-15.2015.172How to use a DOI?

Keywords

Xanthan gum; Detoxification; Steam explosion; Wheat straw; Xanthomonas campestris

Abstract

Hydrolysate of steam-exploded wheat straw (SEWS) was used as the carbon source of xanthan production. The effects of common inhibitors generated during steam explosion on xanthan production were evaluated; a combine method was used to improve the fermentability of enzymatic hydrolysate of SEWS. All the three groups of compounds (weak acid, furan derivatives and phenolic compounds) inhibited xanthan generation; furan derivatives and phenolic compounds could be reduced by using the combinations of low steam pressure and long maintain time; flocculation was effective to remove phenolic compounds; weak acid and furan derivatives could be removed when SEWS was air-dried. Using the detoxified hydrolysate of SEWS, the xanthan production attained 20.7 g L-1 and the yield was 0.62 g xanthan per g sugar (glucose and xylose). It was concluded that SEWS is a potential carbon source of xanthan fermentation.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

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

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TY  - CONF
AU  - Zhiguo Zhang
PY  - 2015/12
DA  - 2015/12
TI  - Xanthan production with the hydrolysate of wheat straw
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 947
EP  - 952
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.172
DO  - 10.2991/icmse-15.2015.172
ID  - Zhang2015/12
ER  -