Influence of redox potential on the accumulation of poly(3-hydroxybutyrate) by Bacillus megaterium

Hassemer, Guilherme de Souza; Nascimento, Lucas Henrique do; Lin, Yen‐Han; Steffens, Clarice; Junges, Alexander; Valduga, Eunice

doi:10.1007/s00449-023-02889-y

Cited by 1 publication

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other research endeavors have successfully produced PHB using effluents from waste sewage and food industry wastewater [ 55 ]. Furthermore, studies indicate the potential utilization of food industry wastewaters, such as confectionery wastewater (CWW) and rice parboiling water (RPW), as cost-effective substrate sources for PHB production [ 56 ].…”

Section: Microbial Pha Synthesis Pathwaysmentioning

confidence: 99%

A review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater

Ahuja,

Singh,

Mahata

et al. 2024

Microb Cell Fact

View full text Add to dashboard Cite

Background Plastic is widely utilized in packaging, frameworks, and as coverings material. Its overconsumption and slow degradation, pose threats to ecosystems due to its toxic effects. While polyhydroxyalkanoates (PHA) offer a sustainable alternative to petroleum-based plastics, their production costs present significant obstacles to global adoption. On the other side, a multitude of household and industrial activities generate substantial volumes of wastewater containing both organic and inorganic contaminants. This not only poses a threat to ecosystems but also presents opportunities to get benefits from the circular economy. Main body of abstract Production of bioplastics may be improved by using the nutrients and minerals in wastewater as a feedstock for microbial fermentation. Strategies like feast-famine culture, mixed-consortia culture, and integrated processes have been developed for PHA production from highly polluted wastewater with high organic loads. Various process parameters like organic loading rate, organic content (volatile fatty acids), dissolved oxygen, operating pH, and temperature also have critical roles in PHA accumulation in microbial biomass. Research advances are also going on in downstream and recovery of PHA utilizing a combination of physical and chemical (halogenated solvents, surfactants, green solvents) methods. This review highlights recent developments in upcycling wastewater resources into PHA, encompassing various production strategies, downstream processing methodologies, and techno-economic analyses. Short conclusion Organic carbon and nitrogen present in wastewater offer a promising, cost-effective source for producing bioplastic. Previous attempts have focused on enhancing productivity through optimizing culture systems and growth conditions. However, despite technological progress, significant challenges persist, such as low productivity, intricate downstream processing, scalability issues, and the properties of resulting PHA. Graphical abstract

show abstract

Section: Microbial Pha Synthesis Pathwaysmentioning

confidence: 99%