Optimized biosynthesis of xanthan via effective valorization of orange peels using response surface methodology: A kinetic model approach

Ali Mohsin, Kuipu Zhang, Junlang Hu, Salim-ur-Rehman, Muhammad Tariq, Waqas Qamar Zaman, Imran Mahmood Khan, Yingping Zhuang, Meijin Guo

Research output: Journal PublicationArticlepeer-review

59 Citations (Scopus)

Abstract

Herein, an enhanced green production of xanthan gum has been achieved by utilizing orange peels. Response surface methodology and kinetic modeling were adapted for the process optimization and its influence on scale up production respectively. Optimal conditions for the maximum xanthan production were 1.62% acid hydrolysis, 85% carbon source of orange peel hydrolysate and 30.4 °C temperature. Furthermore, the optimized treatment was conducted in the batch culture fermentor to observe the associated variations during scale up process. In bio-fermentor, to the first time ever, xanthan production along with reducing sugar conversion and utilization rates reached 30.19 g/L, 69.29% and 99.99%, respectively. Employed characterization techniques of FTIR, XRD and HPLC confirmed the fermented product as xanthan gum and obtained an average molecular weight of 1.01 × 106 g/mol. This work on account of optimized process parameters presented maximum xanthan production from a waste material.

Original languageEnglish
Pages (from-to)793-800
Number of pages8
JournalCarbohydrate Polymers
Volume181
DOIs
Publication statusPublished - 1 Feb 2018
Externally publishedYes

Keywords

  • Fermentation
  • Orange peel
  • Response surface methodology and kinetic analysis
  • Xanthan gum

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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