Microbial Exopolysaccharides: Structure, Diversity, Applications, and Future Frontiers in Sustainable Functional Materials

Polysaccharides, Год журнала: 2024, Номер 5(3), С. 241 - 287

Опубликована: Июль 13, 2024

Exopolysaccharides (EPSs) are a diverse class of biopolymers synthesized by microorganisms under environmental stress conditions, such as pH, temperature, light intensity, and salinity. They offer biodegradable environmentally friendly alternatives to synthetic polymers. Their structural versatility functional properties make them unique in various industries, including food, pharmaceuticals, biomedicine, cosmetics, textiles, petroleum, remediation. In this way, among the well-known EPSs, homopolysaccharides like dextran, bacterial cellulose, curdlan, levan, well heteropolysaccharides xanthan gum, alginate, gellan, kefiran, have found widespread applications numerous fields. However, recent attention has focused on potential role extremophile bacteria producing EPSs with novel unusual protective biological features extreme conditions. Therefore, review provides an overview commonly employed EPSs. It emphasizes their importance industries scientific endeavors while highlighting raised interest exploring compositions, structures, properties, underexplored functionalities. Nevertheless, despite benefits challenges persist. Hence, discusses these challenges, explores opportunities, outlines future directions, focusing impact developing innovative, sustainable, materials.

Язык: Английский

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Exploiting Latent Microbial Potential for Producing Polyhydroxyalkanoates: A Holistic Approach

Environmental Research, Год журнала: 2025, Номер unknown, С. 120895 - 120895

Опубликована: Янв. 1, 2025

Язык: Английский

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Valorization of food waste to biofertilizer and carbon source for denitrification with assistance of plant ash and biochar toward zero solid discharge

Bioresource Technology, Год журнала: 2025, Номер 420, С. 132119 - 132119

Опубликована: Янв. 31, 2025

Язык: Английский

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Engineering Strong and Tough Wood Fiber/Polyhydroxybutyrate Bio-composite: Synergistic Modification, Performance Optimization, and Mechanistic Insights

Composites Part B Engineering, Год журнала: 2025, Номер unknown, С. 112174 - 112174

Опубликована: Янв. 1, 2025

Язык: Английский

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Metabolic engineering of Salinivibrio sp. TGB10 for PHBV biosynthesis with a high 3-hydroxyvalerate fraction from starch and propionate

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 142359 - 142359

Опубликована: Март 1, 2025

Язык: Английский

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Optimized Bioconversion of Cheese Whey to Poly(Hydroxybutyrate) (PHB) by Mangrove-Isolated Bacillus Cereus

Journal of Polymers and the Environment, Год журнала: 2025, Номер unknown

Опубликована: Фев. 6, 2025

Язык: Английский

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Toward Sustainable Polyhydroxyalkanoates: A Next-Gen Biotechnology Approach

Polymers, Год журнала: 2025, Номер 17(7), С. 853 - 853

Опубликована: Март 22, 2025

Polyhydroxyalkanoates (PHAs) are biodegradable biopolymers synthesized by microorganisms and serve as sustainable alternatives to petroleum-based plastics. While traditional PHA production relies on refined carbon sources pure cultures, high costs scalability challenges limit commercial viability. Extremophiles, particularly halophiles, have emerged promising candidates for cost-effective, large-scale of PHAs. Their ability thrive in extreme environments reduces contamination risks, minimizes the need sterilization, lowers operational costs. Advancements metabolic engineering, synthetic biology, CRISPR-based genome editing enhanced yields optimizing flux cell morphology. Additionally, utilizing alternative feedstocks such biowaste, syngas, methane, CO₂ improves economic feasibility. Next-generation industrial biotechnology integrates extremophilic microbes with AI-driven fermentation eco-friendly downstream processing enhance scalability. Industrial-scale PHAs using Halomonas spp. other extremophiles demonstrates significant progress toward commercialization, paving way biopolymer applications reducing plastic pollution.

Язык: Английский

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Polyhydroxybutyrate/Mica Biocomposites: Influence of Filler Content on the Thermal and Mechanical Properties of PHB

Materials Research, Год журнала: 2025, Номер 28

Опубликована: Янв. 1, 2025

Polyhydroxybutyrate (PHB) is a crystalline and linear biopolymer that biodegradable biocompatible. However, due to its high crystallinity, PHB rigid brittle, limiting applications. The brittleness of can be reduced by incorporating reinforcing fillers. In this context, study aimed produce composites based on matrix mica, as filler. Scanning electron microscopy (SEM) revealed the lamellar structure mica within matrix. Fourier-transform infrared spectroscopy (FTIR) confirmed characteristic vibrations, while X-ray diffraction (XRD) identified phases from both Differential scanning calorimetry (DSC) demonstrated mica’s effect crystallinity. Thermogravimetric analysis (TGA/DTG) showed increased thermal stability, with Tonset rising 144 °C (pure PHB) 212 (PHB/mica 12%) Tmax 207 260 °C. Tensile testing indicated stiffness, 413 MPa 333 12%). These findings highlight role in modifying PHB’s structural, thermal, mechanical properties, addressing gaps literature regarding composite system.

Язык: Английский

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A Novel Strategy for Promoting Polyhydroxybutyrate Production with Low-Intensity Ultrasound

Waste and Biomass Valorization, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Язык: Английский

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Biofabrication of polyhydroxybutyrate (PHB) in engineered Cupriavidus necator H16 from waste molasses

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2024, Номер 167, С. 105843 - 105843

Опубликована: Ноя. 30, 2024

Язык: Английский

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