Active Bio‐Nanocomposite Films Based on PVA Filled With CNC and Bio‐Active Extract From Onion Skin Waste DOI Open Access
Mohamed Hamid Salim, Youness Abdellaoui, Mehdi Mennani

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

ABSTRACT Amidst growing interest in sustainable packaging, this study delves into the preparation of polyvinyl alcohol (PVA)‐based biofilms filled with cellulose nanocrystals (CNCs) sourced from red onion skin waste, coupled bio‐active extract (OPE). These innovative bionanocomposite films hold promise for active food packaging applications. The investigation focuses on understanding interplay between added agents (OPE and CNC) macromolecular chains PVA. Furthermore, effects various OPE concentrations physicochemical characteristics antibacterial properties CNC‐filled PVA bio‐nanocomposites were also examined. integration CNC noticeably enhanced film's properties. Mechanical strength increased by 37%, thermal stability improved a 92°C increase decomposition temperature, UV barrier 45%. Additionally, activity against foodborne pathogens improved, highest inhibition rates reaching 89% Staphylococcus fungi 79% aureus . findings demonstrated that incorporation significantly barrier, properties, biodegradability PVA‐CNC bio‐nanocomposite films. present promising approach solutions, capable extending shelf life while reducing environmental impact. Further research real systems is recommended to validate these results.

Language: Английский

Exploring New Strategies for Optimizing the Production of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) from Methane and VFAs in Synthetic Cocultures and Mixed Methanotrophic Consortia DOI Creative Commons
Claudia Amabile,

Teresa Abate,

Enrique Marcos

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(11), P. 4690 - 4699

Published: March 4, 2024

In this work, the potential of a synthetic coculture and mixed methanotrophic consortium to synthesize poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) from renewable waste-based feedstocks was assessed batchwise. Methylocystis parvuscocultivated with Rhodococcus opacus Methylocystis-enriched culture previously grown on methane were subjected nutrient starvation in medium enriched valeric acid (30% w w–1 Ctot) or VFAs mixture containing acetic, propionic, butyric, acids (15% under CH4:O2 air atmosphere. For all test series, pH adjusted 7 after adding cosubstrates, negligible substrate consumption polymer production considered end point trial. Results showed that promoted PHBV accumulation both cultures regardless Interestingly, supported only presence methane. The highest contents for consortium, equal 73.7 ± 2.5% 49.6 13% w–1, respectively, obtained mixture. This study demonstrates suitability cocultures biobased cosubstrates sustainable biodegradable PHBV.

Language: Английский

Citations

10
Production of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) from methane and volatile fatty acids: properties, metabolic routes and current trend DOI Creative Commons
Claudia Amabile,

Teresa Abate,

Raúl Muñoz

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 927, P. 172138 - 172138

Published: April 4, 2024

Polyhydroxyalkanoates (PHAs) are biobased and biodegradable polymers that could effectively replace fossil-based non-biodegradable plastics. However, their production is currently limited by the high costs, mainly due to costly carbon sources used, low productivity quality of materials produced. A potential solution lies in utilizing cheap renewable as primary feedstock during biological PHAs, paving way for a completely sustainable economically viable process. In this review, opportunities challenges related polyhydroxyalkanoates using methane volatile fatty acids (VFAs) substrates were explored, with focus on poly(3-hydroxybutyrate) poly(3-hydroxybutyrate-co-3-hydroxyvalerate). The discussion reports current knowledge about promising Type II methanotrophs, impact process parameters such limiting nutrients, CH4:O2 ratio temperature, type co-substrate its concentration. Additionally, strategies developed until now enhance PHA yields also discussed.

Language: Английский

Citations

9
Attapulgite-supported sulfidated nano Zero-Valent Iron activated persulfate advanced oxidation technology for degradation of polyethylene microplastics: Optimal design, change of particle size and degradation mechanisms DOI
Liang Dai,

Zhenle Lei,

Yujie Cao

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112261 - 112261

Published: Feb. 20, 2024

Language: Английский

Citations

8
Formation of all-biopolymer-based composites with cellulose as main component DOI Creative Commons
Alexandra Wittmar, Oleg Prymak,

Thomas Homm

et al.

RSC Applied Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The composition of the impregnation solution and chemical fibers strongly affect formation all-biopolymer-based composites their structural mechanical properties.

Language: Английский

Citations

1
Active Bio‐Nanocomposite Films Based on PVA Filled With CNC and Bio‐Active Extract From Onion Skin Waste DOI Open Access
Mohamed Hamid Salim, Youness Abdellaoui, Mehdi Mennani

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

ABSTRACT Amidst growing interest in sustainable packaging, this study delves into the preparation of polyvinyl alcohol (PVA)‐based biofilms filled with cellulose nanocrystals (CNCs) sourced from red onion skin waste, coupled bio‐active extract (OPE). These innovative bionanocomposite films hold promise for active food packaging applications. The investigation focuses on understanding interplay between added agents (OPE and CNC) macromolecular chains PVA. Furthermore, effects various OPE concentrations physicochemical characteristics antibacterial properties CNC‐filled PVA bio‐nanocomposites were also examined. integration CNC noticeably enhanced film's properties. Mechanical strength increased by 37%, thermal stability improved a 92°C increase decomposition temperature, UV barrier 45%. Additionally, activity against foodborne pathogens improved, highest inhibition rates reaching 89% Staphylococcus fungi 79% aureus . findings demonstrated that incorporation significantly barrier, properties, biodegradability PVA‐CNC bio‐nanocomposite films. present promising approach solutions, capable extending shelf life while reducing environmental impact. Further research real systems is recommended to validate these results.

Language: Английский

Citations

1