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Gunasekar V, Reshma KR, Treesa G, et al. Xanthan from sulphuric acid treated tapioca pulp: influence of acid concentration on xanthan fermentation. Carbohydr Polym. 2013;102:669-73doi: 10.1016/j.carbpol.2013.11.006.
Gunasekar, V., Reshma, K. R., Treesa, G., Gowdhaman, D., & Ponnusami, V. (2014). Xanthan from sulphuric acid treated tapioca pulp: influence of acid concentration on xanthan fermentation. Carbohydrate polymers, 102669-73. https://doi.org/10.1016/j.carbpol.2013.11.006
Gunasekar, V, et al. "Xanthan from sulphuric acid treated tapioca pulp: influence of acid concentration on xanthan fermentation." Carbohydrate polymers vol. 102 (2014): 669-73. doi: https://doi.org/10.1016/j.carbpol.2013.11.006
Gunasekar V, Reshma KR, Treesa G, Gowdhaman D, Ponnusami V. Xanthan from sulphuric acid treated tapioca pulp: influence of acid concentration on xanthan fermentation. Carbohydr Polym. 2014 Feb 15;102:669-73. doi: 10.1016/j.carbpol.2013.11.006. Epub 2013 Nov 13. PMID: 24507334.
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Carbohydr Polym. 2014 Feb 15;102:669-73. doi: 10.1016/j.carbpol.2013.11.006. Epub 2013 Nov 13.

Xanthan from sulphuric acid treated tapioca pulp: influence of acid concentration on xanthan fermentation.

Carbohydrate polymers

V Gunasekar, K R Reshma, Greeshma Treesa, D Gowdhaman, V Ponnusami

Affiliations

  1. School of Chemical and Biotechnology, SASTRA University, Thanjavur 613402, India.
  2. School of Chemical and Biotechnology, SASTRA University, Thanjavur 613402, India. Electronic address: [email protected].

PMID: 24507334 DOI: 10.1016/j.carbpol.2013.11.006

Abstract

Xanthan gum was produced by fermentation of sulphuric acid pre-treated tapioca pulp. Effect of sulphuric acid concentration (0.5%, 2.5% and 5.0%) on xanthan fermentation was investigated. Maximum xanthan yield (7.1g/l) was obtained with 0.5% sulphuric acid pre-treatment. Further, increase in sulphuric acid concentration caused formation of inhibitory substance and lowered xanthan yield. The product was confirmed as xanthan using FTIR, (1)H NMR analyses. Viscosity was measured by Brookfield viscometer and the molecular weight was determined from the intrinsic viscosity. The results confirmed that the yield and quality of xanthan produced were strongly influenced by the acid concentration.

Copyright © 2013 Elsevier Ltd. All rights reserved.

Keywords: Acid treatment; Hydrolytic intermediates; Tapioca pulp; Xanthan gum

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