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[Biomanufactured polyhydroxyalkanoates (PHA) modification: a review].

Yingxin Zhou1, Nan Yang1, Xiyuan Wang1

  • 1Materials Science and Engineering Department, Beijing Technology and Business University, Beijing 100048, China.

Sheng Wu Gong Cheng Xue Bao = Chinese Journal of Biotechnology
|October 12, 2017
PubMed
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This review covers the industrial production of biomanufactured polyhydroxyalkanoates (PHA) and modifications to improve their properties. Optimizing PHA through various methods expands their potential applications in industry.

Keywords:
biological modificationchemical modificationphysical modificationpolyhydroxyalkanoates

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Area of Science:

  • Biotechnology
  • Polymer Science
  • Materials Science

Background:

  • Polyhydroxyalkanoates (PHA) are biodegradable polyesters with growing industrial relevance.
  • Key PHA types include poly(3-hydroxybutyrate) (PHB), poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P3/4HB), and poly(3-hydroxybutyrate-3-hydroxycaproate) (PHBH).
  • Current PHAs face challenges such as poor thermal stability and a narrow processing window.

Purpose of the Study:

  • To review the industrial status of biomanufactured PHA.
  • To discuss modification strategies addressing PHA limitations.
  • To highlight how property optimization can broaden PHA applications.

Main Methods:

  • Literature review of industrial PHA production.
  • Analysis of modification studies for PHA.
  • Evaluation of property improvements and their impact on applications.

Main Results:

  • Overview of the industrial landscape for various PHA types.
  • Detailed discussion of modification techniques and their effectiveness.
  • Demonstration that optimized PHA properties enhance applicability.

Conclusions:

  • Biomanufactured PHAs are industrially significant but require property enhancement.
  • Modification methods are crucial for overcoming PHA drawbacks.
  • Optimized PHAs offer expanded application potential across industries.