Waste and Biomass Valorization, Journal Year: 2025, Volume and Issue: unknown
Published: March 16, 2025
Language: Английский
Polymers, Journal Year: 2024, Volume and Issue: 16(15), P. 2227 - 2227
Published: Aug. 5, 2024
Biopolymers are highly desirable alternatives to petrochemical-based plastics owing their biodegradable nature. The production of bioplastics, such as polyhydroxyalkanoates (PHAs), has been widely reported using various bacterial cultures with substrates ranging from pure biowaste-derived sugars. However, large-scale and economic feasibility major limiting factors. Now, algal biomass for PHA offers a potential solution these challenges significant environmental benefit. Algae, unique ability utilize carbon dioxide greenhouse gas (GHG) wastewater feed growth, can produce value-added products in the process and, thereby, play crucial role promoting sustainability. sugar recovery efficiency is variable depending on pretreatment procedures due inherent compositional variability among cell walls. Additionally, yields, composition, properties synthesized vary significantly microbial producers algal-derived Therefore, microalgal pretreatments synthesis copolymers still require considerable investigation develop an efficient commercial-scale process. This review provides overview discusses strategies enhance its properties, focusing managing GHGs sustainable future.
Language: Английский
Citations
5
Deleted Journal, Journal Year: 2024, Volume and Issue: 1(1)
Published: Sept. 2, 2024
Bioplastics derived from polyhydroxyalkanoates (PHAs) are among the promising substitutes for unsustainable petroleum-based polymers. PHA-based polymers demonstrate superior chemical and physical properties, such as hydrophobicity, insolubility in water, iso-tacticity, UV resistance, hydrolysis absolute biodegradability. Compared with conventional plastics, bioplastics more beneficial due to their reduced carbon footprint, energy efficiency, biodegradability, biocompatibility, have hence revolutionized polymer industry. However, further research is needed explore novel strategies overcome limitations, decreasing water absorption brittleness, while increasing crystallization ability thermal degradation temperature. These constraints can be addressed by supplementing bioplastic synthesis process reinforcements plasticizers. The development adoption of biopolymers an environmentally friendly economically viable synthetic plastics imperative, considering degree subsequent exhaustion petrochemical supplies worldwide environmental contamination instigated industrial production plastics. goal this appraisal provide in-depth account most recent advancements generation various wastewater streams via use microalgae, harvesting technologies. microalgae higher quality made polymeric biomolecules include based on cellulose, starch, proteins, PHA, polyhydroxybutyrate (PHB), polyethylene (PE), polylactic acid (PLA), poly vinyl chloride (PVC). Various types manufacturing methodologies also been highlighted researchers capitalists alike investigate ways harness these renewable resources sustainable bioplastics. Additionally, innovations, challenges, potential possibilities future, life cycle evaluations addressed.
Language: Английский
Citations
5
Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 463, P. 142657 - 142657
Published: May 23, 2024
Language: Английский
Citations
4
Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 468, P. 143052 - 143052
Published: June 29, 2024
Biopolimer materials, such as polyhydroxyalkanoates (PHA), are essential to restrain the use of petroleum-based plastic material fostered by European Union regulation. Despite recent development regarding production PHA, scale-up sewage sludge-based technology is still in its infancy since literature lacks studies on environmental impact process. This work aims stand a pioneer study reporting direct greenhouse gas (GHG) emissions and carbon footprint (CF) two PHA strategies. The strategies, aerobic dynamic feeding (ADF) aerobic/anoxic enrichment (AE/AN), were monitored compared based system's efficiency removing nutrients, PHA's productivity, nitrous oxide CF. produced accounted for 38.21 g g−1 volatile suspended solids (VSS) % 14.54 VSS %, ADF AE/AN, respectively. N2O lower than AE/AN enrichment, 0.39 N2O–N L−1 0.98 L−1, respectively, was CF, which 3.56 kg CO2 day−1 6.91 innovative provides valuable insights into comparing above-mentioned strategies pilot structuring designing future comprehensively considering consequences process life cycle assessments.
Language: Английский
Citations
4
Materials, Journal Year: 2024, Volume and Issue: 17(22), P. 5415 - 5415
Published: Nov. 6, 2024
Polyhydroxyalkanoates (PHAs) are promising biopolymers as an alternative to traditional synthetic polymers due their biodegradability and biocompatibility. The PHA market is blooming in response the growing demand for biodegradable environmentally friendly plastics. These biopolyesters produced degraded by a variety of microorganisms, making them friendly, while offering benefits such biocompatibility (when adequately processed) biodegradability. Their versatility extends various areas, from biomedicine agriculture composite materials, where they pave way significative innovations. In field regenerative medicine, some PHAs have key applications, namely vascular grafts, oral tissue regeneration, development self-healing polymers. addition, potential be used creation dental implant materials medical devices. can also encapsulate hydrophobic drugs, providing approach more targeted effective treatments. To summarize, open new perspectives medicine improving drug delivery ecologically biocompatible solutions aim this review present applications PHA, advantages, disadvantages, indications.
Language: Английский
Citations
4
Fuel, Journal Year: 2025, Volume and Issue: 386, P. 134220 - 134220
Published: Jan. 7, 2025
Language: Английский
Citations
0
Forests, Journal Year: 2025, Volume and Issue: 16(1), P. 163 - 163
Published: Jan. 16, 2025
In line with environmental awareness movements and social concerns, the textile industry is prioritizing sustainability in its strategic planning, product decisions, brand initiatives. The use of non-biodegradable materials, obtained from non-renewable sources, contributes heavily to pollution throughout production chain. As sustainable alternatives, considerable efforts are being made incorporate biodegradable biopolymers derived residual biomass, reasonable costs, replace or reduce synthetic petrochemical-based polymers. However, commercial deployment these dependent on high biomass availability a cost-effective supply. Residual forest lignocellulosic composition seasonably available at low cost, constitutes an attractive renewable resource that might be used as raw material. Thus, this review aims carrying out comprehensive analysis existing literature source new biomaterials for industry, identifying current gaps problems. Three specific considered: lignin recovered bacterial poly(hydroxyalkanoates) (PHAs) cellulose (BC), which can produced sugar-rich hydrolysates polysaccharide fractions biomass. Lignin, PHA, BC find applications, example, develop fibers technical textiles, thus replacing currently materials. This approach will considerably contribute improving by reducing amount materials upon disposal their impact. Moreover, integration material produce advanced consistent principles circular economy bioeconomy offers potential development innovative industry.
Language: Английский
Citations
0
Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 106809 - 106809
Published: Jan. 1, 2025
Language: Английский
Citations
0
Process Biochemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Language: Английский
Citations
0
Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 375, P. 124240 - 124240
Published: Jan. 29, 2025
The products of an advanced sewage sludge fermentation process can be used to generate polyhydroxyalkanoates (PHAs), precursors bioplastics considered excellent candidates for replacing petroleum-derived plastics. aerobic feast-anoxic famine cycling strategy has proven efficient method enriching microbiota with PHA-producing microorganisms. This work evaluated the effect different carbon nitrogen ratios (C/N) 3.5, 2, and 1 g COD/g N modulating structure improve PHA production. study was executed on a pilot plant scale using wasted activated as organic source derived from oxic-settling anaerobic that collects wastewater various facilities at University Palermo campus. production performance monitored over three experimental periods characterized by C/N ratio. results showed lower reduced 20, 24, 26 % w/w PHAs COD/N values 1, 3.5 N, respectively. In parallel, metataxonomic analysis revealed higher abundance microorganisms ratio such Proteobacteria, specifically Betaproteobacteria. addition, increase in fungal diversity decrease decreased. Thus, these findings demonstrate utility metataxonomics elucidating relationships between operating conditions, bacterial achievement specific outputs. insights gained this demonstrated positive correlation ratios, microorganisms, yields.
Language: Английский
Citations
0