Jul 2026· International Journal of Current Science Research and Review· 0 citations
Abstract
The increasing accumulation of petroleum-based plastic waste and wastewater has intensified the need for sustainable waste management and biodegradable alternatives. Poly(3-hydroxybutyrate) (P3HB), a microbial biopolymer, has emerged as a promising substitute for conventional plastics. This article reviews the potential of wastewater as a renewable substrate for P3HB production, with emphasis on microbial pathways, production strategies, and sustainability aspects. It discusses different wastewater sources, P3HB-producing microorganisms, metabolic engineering approaches, production processes, and polymer recovery techniques, highlighting the factors that influence productivity and product quality. The integration of P3HB production into biorefinery systems and its contribution to resource recovery, greenhouse gas mitigation, and the circular bioeconomy are also addressed. Overall, wastewater-based P3HB production represents a sustainable and economically attractive approach for biodegradable polymer production, although further technological advances are required to support large-scale industrial implementation.
Plastic pollution is an escalating environmental concern, driving the urgent need for sustainable alternatives to conventional, petroleum-based plastics. Among the most promising solutions is the production of biopolymers, that is, natural polymers synthesized by living organisms such as microbes, plants, and animals....
Global plastic production is expected to continue rising in the next few decades, with packaging accounting for roughly one quarter of the total volume of plastic and intensifying interest in biodegradable alternatives such as polylactic acid (PLA). One approach towards bioplastic production is lactic acid fermentation...
Mariana C. Pedrosa, S. Heleno, M. Pintado et al.· Sustainability· 0 citations
The concurrent crises of plastic pollution, climate change, and resource scarcity demand innovative biotechnological solutions. This review explores an emerging paradigm to produce polyhydroxyalkanoate (PHA) bioplastics using wastewater sludge (WWS) as a primary feedstock. WWS is a complex yet globally abundant was...
Anwar Ahmad, Adil A. Al-Shoaibi, Yasir Alhawti et al.· EcoMat· 0 citations
Polyhydroxyalkanoates (PHAs) are biodegradable microbial polyesters with strong potential as sustainable alternatives to petroleum-derived plastics. Oil-derived substrates, including free fatty acids, triglycerides, and waste cooking oil (WCO), are attractive feedstocks due to their high degree of reduction and favorab...
This review provides a comprehensive overview of recent improvements in PHB production by halophilic bacteria, covering physiological adaptations, metabolic pathways, substrate usage, fermentation techniques, and bioreactor optimisation, with particular emphasis on the use of agro-industrial residues and waste-derived...
Nadana Raja Vadivu Ganapathy, Sakshi Singh, Shivansh Ranawat et al.· Bioresources and Bioprocessi...· 0 citations
Xylitol is a five-carbon sugar alcohol widely used in the food, pharmaceutical, oral healthcare, and personal care industries because of its low caloric value, low glycaemic index, and non-cariogenic properties. Industrial production is mainly based on catalytic hydrogenation of xylose, which provides high conversion e...
