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Xanthan gum production using jackfruit-seed-powder-based medium: optimization and characterization.

R Felicia Katherine1, C Muthukumaran2, G Sharmila3

  • 1Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur, Chennai, 603 203, India.

3 Biotech
|July 17, 2017
PubMed
Summary
This summary is machine-generated.

Jackfruit seed powder (JSP) is a novel, low-cost substrate for producing xanthan gum (XG) by Xanthomonas campestris. This study optimized XG production, achieving a maximum yield of 51.62 g/L using JSP.

Keywords:
FTIRJackfruit seed powderOptimizationRSMXRDXanthan gum

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Area of Science:

  • Biotechnology
  • Microbial Fermentation
  • Biopolymer Production

Background:

  • Xanthan gum (XG) is a versatile biopolymer with wide industrial applications.
  • Traditional XG production relies on expensive nutrient sources.
  • Exploring cost-effective substrates is crucial for sustainable biopolymer manufacturing.

Purpose of the Study:

  • To investigate jackfruit seed powder (JSP) as a novel, low-cost substrate for xanthan gum (XG) production by Xanthomonas campestris.
  • To optimize the fermentation medium composition for maximizing XG yield using JSP.
  • To characterize the produced biopolymer and confirm its identity as XG.

Main Methods:

  • Utilized Xanthomonas campestris NCIM 2961 for XG fermentation.
  • Employed Response Surface Methodology (RSM) with Central Composite Design (CCD) to optimize five medium variables: JSP, peptone, citric acid, dipotassium phosphate (K2HPO4), and potassium dihydrogen phosphate (KH2PO4).
  • Characterized the resulting biopolymer using X-ray Diffraction (XRD) and Fourier-Transform Infrared (FTIR) spectroscopy.

Main Results:

  • Achieved a maximum XG yield of 51.62 g/L under optimized conditions.
  • Identified optimal medium concentrations: 4 g/L JSP, 0.93 g/L peptone, 0.26 g/L citric acid, 1.29 g/L K2HPO4, and 0.5 g/L KH2PO4.
  • Confirmed K2HPO4 and KH2PO4 as significant components, acting as both nutrients and buffering agents for Xanthomonas campestris growth.
  • XRD and FTIR analyses confirmed the identity of the produced biopolymer as xanthan gum.

Conclusions:

  • Jackfruit seed powder (JSP) is a viable and cost-effective alternative substrate for xanthan gum (XG) production.
  • Optimization of medium components significantly enhances XG yield.
  • This approach offers a sustainable and economical route for industrial XG biosynthesis.