Tuning Material Properties of Microbially Synthesized Poly(3-hydroxybutyrate-co-hydroxyvalerate) and Their Composites for Various Applications

Lhamo, Pema; Mahanty, Biswanath

doi:10.1007/s10924-023-02908-9

Cited by 2 publications

(1 citation statement)

References 151 publications

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“…P(3HB- co -3HV) copolymers are isodimorphic due to the cocrystallization of monomer units [ 52 ]. Compared with P(3HB), these copolymers have lower crystallinity and melting point, lower rigidity, and higher elasticity [ 38 , 53 , 54 , 55 , 56 , 57 ].…”

Section: Resultsmentioning

confidence: 99%

Biodegradable Polyhydroxyalkanoates with a Different Set of Valerate Monomers: Chemical Structure and Physicochemical Properties

Volova,

Zhila,

Kiselev

et al. 2023

IJMS

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The properties, features of thermal behavior and crystallization of copolymers containing various types of valerate monomers were studied depending on the set and ratio of monomers. We synthesized and studied the properties of three-component copolymers containing unusual monomers 4-hydroxyvalerate (4HV) and 3-hydroxy-4-methylvalerate (3H4MV), in addition to the usual 3-hydroxybutyrate (3HB) and 3-hydroxyvalerate (3HV) monomers. The results showed that P(3HB-co-3HV-co-4HV) and P(3HB-co-3HV-co-3H4MV) terpolymers tended to increase thermal stability, especially for methylated samples, including an increase in the gap between melting point (Tmelt) and thermal degradation temperature (Tdegr), an increase in the melting point and glass transition temperature, as well as a lower degree of crystallinity (40–46%) compared with P(3HB-co-3HV) (58–66%). The copolymer crystallization kinetics depended on the set and ratio of monomers. For terpolymers during exothermic crystallization, higher rates of spherulite formation (Gmax) were registered, reaching, depending on the ratio of monomers, 1.6–2.0 µm/min, which was several times higher than the Gmax index (0.52 µm/min) for the P(3HB-co-3HV) copolymer. The revealed differences in the thermal properties and crystallization kinetics of terpolymers indicate that they are promising polymers for processing into high quality products from melts.

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Section: Resultsmentioning

confidence: 99%

Biodegradable Polyhydroxyalkanoates with a Different Set of Valerate Monomers: Chemical Structure and Physicochemical Properties

Volova,

Zhila,

Kiselev

et al. 2023

IJMS

View full text Add to dashboard Cite

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Perspectives of Biodegradable Nanocoatings in Food Packaging

Yılmaz

2024

Sustainable Approach to Protective Nanocoatings

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Nanotechnology has the potential to improve human health, economic prosperity, product innovation, and overall quality of life, including through food nanopackaging––a promising area focusing on biodegradable packaging solutions. This alternative to conventional packaging minimizes waste, extends food shelf life, and enhances overall quality. The production of biodegradable nanocoatings can contribute to industry sustainability by reducing water consumption, solid waste, electricity use, and emissions. Bio-based coatings, with compatibility and matrix properties, can incorporate antioxidant agents and antimicrobial compounds, enhancing product safety, functionality, and shelf life. Biodegradable polymers, including polysaccharides, proteins, lipids, and polyesters, offer innovative pathways for entirely bio-based nanocoatings. These cost-effective, biocompatible, and renewable materials can be sourced directly from marine organisms and plants or produced through fermentative processes by microorganisms, such as microbial polyesters or polysaccharides. However, challenges in handling biopolymers, such as their hydrophilicity, crystallization tendencies, brittleness or melting instabilities, necessitate blending them with other materials to enhance their coating performance. Integrating nanoparticles within biopolymers can address environmental concerns by reducing packaging materials and enhancing recyclability. This approach aligns with a more eco-sustainable approach to food packaging, resulting in reduced waste.

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Tuning Material Properties of Microbially Synthesized Poly(3-hydroxybutyrate-co-hydroxyvalerate) and Their Composites for Various Applications

Cited by 2 publications

References 151 publications

Biodegradable Polyhydroxyalkanoates with a Different Set of Valerate Monomers: Chemical Structure and Physicochemical Properties

Biodegradable Polyhydroxyalkanoates with a Different Set of Valerate Monomers: Chemical Structure and Physicochemical Properties

Perspectives of Biodegradable Nanocoatings in Food Packaging

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