China Plastics ›› 2025, Vol. 39 ›› Issue (4): 84-91.DOI: 10.19491/j.issn.1001-9278.2025.04.015

• Plastic and Environment • Previous Articles     Next Articles

Research progress in biodegradation of polyhydroxyalkanoate (PHA) under different conditions

CHU Xingyu2(), FANG Fang1,2(), XU Runze2, WANG Suna2, CAO Jiashun1,2   

  1. 1.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,Ministry of Education,Hohai University,Nanjing 210098,China
    2.College of Environment,Hohai University,Nanjing 210098,China
  • Received:2024-06-24 Online:2025-04-26 Published:2025-04-23

Abstract:

Polyhydroxyalkanoate (PHA) as a biodegradable plastic has been gradually developed into an alternative to traditional plastics due to its similar physicochemical properties to traditional plastics together with environmentally friendly characteristics. Upon reaching the end of their lives, some consideration should be given to reasonably dispose PHA wastes to alleviate environmental pressures. This review paper introduced the categories, properties and applications of PHA. The biodegradation of PHA in different environments or processes, functional microorganisms, and enzymes, as well as the mechanism and standards related to biodegradation were also summarized. This paper aimed to provide theoretical references for improving the biodegradability of PHA products and optimizing PHA waste management and disposal strategies.

Key words: polyhydroxyalkanoates, biodegradation, aerobic, anaerobic, biodegradation mechanism

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