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Polyhydroxybutyrate production from marine source and its application.

Ganapathy Kavitha1, Ramasamy Rengasamy2, Dhinakarasamy Inbakandan3

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Marine microbes offer a sustainable source for polyhydroxyalkanoates (PHAs), biodegradable plastics. Research explores using these microbes to produce PHAs, addressing plastic waste concerns.

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Area of Science:

  • Biotechnology and Materials Science
  • Environmental Science
  • Microbiology

Background:

  • Growing concern over non-degradable plastic waste necessitates biodegradable alternatives.
  • Polyhydroxyalkanoates (PHAs), specifically polyhydroxybutyrate (PHB), are biodegradable, biocompatible thermoplastics with diverse applications.
  • Current production methods face cost challenges, driving the search for alternative sources.

Purpose of the Study:

  • To review the potential of marine microbes as a sustainable source for PHA production.
  • To highlight strategies for enhancing PHA yield from marine microorganisms.
  • To explore the diverse applications of marine-derived PHAs.

Main Methods:

  • Review of existing literature on microbial PHA synthesis.
  • Analysis of genetic engineering strategies for PHA production pathways.
  • Assessment of marine microbial communities as PHA producers.
  • Investigation of novel extraction and purification techniques.

Main Results:

  • Marine microbes, including bacteria, microalgae, actinomycetes, and cyanobacteria, are viable sources for PHA production.
  • Genetic engineering and the use of unconventional substrates show promise for increasing PHA yields.
  • Marine-derived PHAs exhibit properties suitable for applications in aquaculture, medicine, antifouling, and tissue engineering.

Conclusions:

  • Marine microbes represent a commercially attractive and environmentally friendly source for biodegradable PHAs.
  • PHA synthesis by marine microbes may be linked to their survival mechanisms in competitive environments.
  • Further research into marine microbial PHA production can lead to sustainable plastic alternatives and novel biotechnological applications.