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May 7, 2026Environmental Science and Pollution Research1 citationsOpen Access

Feast–famine enrichment of mixed microbial cultures enhances wastewater valorization into bioplastics

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EAEyder Andrés Espinosa AcostaAHArmando Espinosa HernándezICIván O. Cabeza

Key Points

  • Assess the impact of feast-famine conditions on microbial cultures for bioplastics production.
  • Analyzed mixed microbial cultures under feast-famine enrichment.
  • Measured COD-based PHA production relative to VFA consumed.
  • Conducted molecular analysis of microbial species present.
  • Enhanced COD-based PHA production observed in enriched cultures.
  • Identified key microbial species associated with PHA dynamics.
  • Supported the viability of wastewater valorization for bioplastics within circular economy.

Abstract

, expressed as COD-based PHA produced per COD of VFA consumed). Molecular analysis revealed species classically associated with PHA dynamics (Paracoccus sp., Alcaligenes sp.) and the presence of Diaphorobacter limosus, suggesting complementary roles under selective pressure. These findings highlight wastewater valorization into bioplastics as a viable route within the circular economy framework.

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Cite This Study

Acosta et al. (2026) studied this question.

synapsesocial.com/papers/69fbe382164b5133a91a2c69https://doi.org/10.1007/s11356-026-37726-8
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