• Natarajan K. T John College of Pharmacy, Department of Pharmaceutical Biotechnology, Bengaluru.
  • Vineeth Chandy T John College of Pharmacy, Department of Pharmaceutical Biotechnology, Bengaluru.
  • Sirajudeen M. A. Ultra College of Pharmacy, Department of Pharmaceutical Biotechnology, Madurai




HA, Klebsiella pneumoniae, Mutation, Enriched media


Objective: This study was done to optimize the production parameters involved in the isolation of hyaluronan (HA) from UV mutated a clinical strain of Klebsiella pneumonia (M 3020).

Methods: Glucose and nitrogen enriched media (D-glucose, L-glutamic acid, and peptone) were utilized to cultivate the clinical isolate K. pneumoniae. The strain was Ultra Violet (UV) radiation mutated (254 nm, 25 min) and HA production was optimized by parameters such as pH and temperature. The isolated HA from the fermented broth was subjected to purification by isopropyl alcohol and silica gel and further dried by lyophilization. Produced HA was confirmed with UV and Fourier Transform Infra-Red (FT-IR) spectroscopy.

Results: UV treated strain at 254 nm for 25 min predominantly produce a high quantity of HA (3.5 g/l) in 37 °C, 300 rpm and pH 6.8 at 24 h run. UV and IR spectrum of produced HA showed strong similarity with the standard hyaluronan.

Conclusion: To conclude, high quantity and quality of HA can be isolated from mutated clinical strains of K. pneumoniae.


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How to Cite

K., N., V. Chandy, and S. M. A. “HYALURONAN-A NOVEL POLYMER ISOLATED FROM MUTATED CLINICAL BACTERIAL ISOLATE”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 10, no. 1, Jan. 2018, pp. 208-10, doi:10.22159/ijpps.2018v10i1.22624.



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