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Characterization of Polyhydroxyalkanoate Produced by Halomonas venusta KT832796.

Angelina, Stanley and Keshava Murthy, P. S. and Vijayendra, S. V. N. (2020) Characterization of Polyhydroxyalkanoate Produced by Halomonas venusta KT832796. Journal of Polymers and the Environment, 28. pp. 973-983.

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Abstract

Halophilic microorganisms produce several metabolites having potential application in biotechnology and industry. They also produce polyhydroxyalkanoates (PHA), which are suitable replacements for conventional plastics for packaging food and non-food materials due to their biocompatible and biodegradable properties. PHA produced by the native isolate of Halomonas venusta KT832796 using a minimal medium was made into a film. It was characterized using Fourier Transform Infrared (FTIR) spectroscopy, Nuclear Magnetic Resonance (NMR) spectroscopy, GC–MS, UTM (Mechanical strength), Differential Scanning Calorimetry (DSC) and X-ray diffraction (XRD) analysis. Based on FTIR, NMR and GC–MS analyses the polymer produced by Halomonas venusta KT832796 was found to be poly(3-hydroxybutyrate). The polymer had a tensile strength of 26 MPa and Young’s modulus of 3 GPa and the melting temperature Tm 173.59 °C, which are found to be similar to the standard PHB polymer and the crystalline state was revealed by XRD pattern. This PHB polymer can be used in food packaging systems and medical applications for drug delivery. This is the first communication on characterization of PHA produced by Halomonas venusta.

Item Type: Article
Uncontrolled Keywords: PHA characterization · Polyhydroxybutyrate (PHB) · Halomonas venusta · Bioplastics
Subjects: 600 Technology > 08 Food technology > 10 Food Microorganisms
600 Technology > 08 Food technology > 06 Preservation and Storage > 06 Packaging
Divisions: Fermentation Technology and Bioengineering
Food Packaging Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 30 Apr 2020 07:10
Last Modified: 30 Apr 2020 07:10
URI: http://ir.cftri.com/id/eprint/14276

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