Biodegradation behavior of PHAs with different chemical structures under controlled composting conditions

By Yunxuan Weng, Xiu-li Wang, Yu-Zhong Wang. 2011

180 citations recorded by the source corpus.

Abstract Polyhydroxyalkanotes (PHAs) are biobased and biodegradable polymers, of which poly(hydroxybutyrate- co -hydroxyvalerate) (PHBV, 3 %mol HV) and poly-3-hydroxybutyrate-co-4-hydroxybutyrate [P(3HB,4HB), 10 %mol 4HB] are currently commercialized. To understand the influence of chemical structure on the biodegradability of PHA, the biodegradation behavior of poly(hydroxybutyrate) (PHB), PHBV (40 %mol HV), PHBV (20 %mol HV), PHBV (3 %mol HV) and P(3HB,4HB) (10 %mol 4HB) were investigated under the controlled composting conditions according to ISO 14855-1. It was found that PHAs with different chemical structures can be biodegraded under the controlled composting conditions. The order of biodegradability was P(3HB, 4HB) (40 %mol 4HB) ≈ PHBV(40 %mol HV) >PHBV(20 %mol HV) >PHBV(3 %mol HV) >PHB.

Subfields: Biomaterials, Pollution, Process Chemistry and Technology

View Paper: https://www.semanticscholar.org/paper/9242d306088cf817a5ad30dad2104bcac4f281fe

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In Biomaterials

1. D. Komilis
2. Aimilia Karageorgiou
3. P. Calabrò
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Citations in the corpus

• Biodegradation of Wasted Bioplastics in Natural and Industrial Environments: A Review (2020, background): “For instance, PHB showed up to 80% of biodegradation in less than four months [157,158], and cellulose-based bioplastics showed complete degradation after a period of three to five months [51,133].”