Innovative biomaterials for food packaging: Unlocking the potential of polyhydroxyalkanoate (PHA) biopolymers

Biomaterials Advances, Год журнала: 2024, Номер 163, С. 213929 - 213929

Опубликована: Июнь 19, 2024

Язык: Английский

---

Development of Lightweight, Recyclable, and Degradable Foams Based on an Environmentally Friendly Polyamide Elastomer System via Supercritical Carbon Dioxide Foaming

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 13(1), С. 494 - 506

Опубликована: Дек. 30, 2024

In efforts to resolve problems of depletion earth's resources and disposal solid waste caused by traditional petrochemical polyamide systems, biobased degradable polyamides their foamed products have received considerable attention. However, the practical development such sustainable foamable materials is still challenging. Herein, we designed an environmentally friendly elastomer system using 1010 (PA1010) as hard segment polycaprolactone (PCL) diol soft segment. By increasing PCL content, melting temperature was gradually suppressed from 205 173 °C, stretchability progressively enhanced 18 770%. Notably, elastomers with high contents were beneficial production lightweight foams expansion ratios higher than 3.8 via supercritical carbon dioxide (CO2) foaming, effectively overcoming major difficulties in manufacturing intrinsic issues crystallinity, low extensibility, insufficient melt strength. Moreover, controlling content at optimal value 37 wt % allowed achieve a good balance between foaming performance shrinkage resistance. Additionally, could be easily recycled remanufactured form renewed foam because no reactive cross-linkers or chemical blowing agents used. The compressive stress restored least 70% original level. Furthermore, gave favorable degradability. sample highest showed mass loss approximately 24.65% after 12 weeks alkaline medium. Such effective degradability conducive resolving accumulation landfilling greenhouse gas emissions incineration. We believe that these findings provide constructive way design advanced materials.

Язык: Английский

---

Preparation and properties of chitosan/cellulose nanofiber dual-network composite by in-situ catalysis of recombinant enzyme

Carbohydrate Polymers, Год журнала: 2025, Номер 356, С. 123403 - 123403

Опубликована: Фев. 14, 2025

Язык: Английский

---

Eco-sustainable, edible, biodegradable and antioxidant pectin and bacterial cellulose films loaded with coconut oil for strawberry preservation

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 142701 - 142701

Опубликована: Март 1, 2025

Язык: Английский

---

Biodegradation Process of Flexible Films Based on Cassava Starch Performed at a Pilot‐Scale

Journal of Applied Polymer Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

ABSTRACT This study assessed the biodegradability of flexible film and its components. The tests were carried out under composting conditions. kinetics carbon dioxide production percentage biodegradation measured. Fourier Transform InfraRed spectroscopy (FTIR), Thermo Gravimetric Analysis (TGA), Scanning Electron Microscopy (SEM) used to changes films in test. total organic (TOC) was After test, plant growth out, which included measurement chlorophyll Index (CI). results showed that film, ecovio F2223, thermoplastic starch (TPS) achieved 92.13%, 93.20%, 96.88%, respectively, contrast polylactic acid‐PLA (80.28%). FTIR molecular structures, mainly band crystalline zones around 2800–3000 cm −1 , deformation bands between 1400 1500 amorphous 1200–1000 . TGA films, PLA, TPS a thermal degradation 350°C, 360°C, 370°C, 320°C, due polymeric structures degradation. SEM micrographs show morphology change on surfaces after evidencing action microorganisms. compost stability by Gemination CI no presented significative differences.

Язык: Английский

---

Nanocellulose-hydrogel hybrids: A review on synthesis and applications in agriculture, food packaging and water remediation

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 143081 - 143081

Опубликована: Апрель 1, 2025

Язык: Английский

---

Flexible Hollow‐Structured Reinforced Mycelium Insulation Material and its Performance

Advanced Materials Technologies, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Abstract Faced with the environmental impact and non‐renewability of traditional petroleum‐based insulation materials like foamed polyethylene asbestos, this study explores sustainable, bio‐based alternatives improved thermal mechanical performance. Using Ganoderma applanatum , a mycelial growth skeleton an enhanced static air layer is constructed to optimize material's strength properties. The resulting mycelium‐based composites (MBC) achieve density 195–249 kg m −3 low conductivity 0.0370 W −1 ∙K maximum flexural 0.382 MPa, compressive 2.409 MPa. Additionally, material exhibits high water contact angle 138.6° absorption rate 44.05%–84.84%. Compared previous studies, demonstrate superior performance, striking balance between strength. These results highlight potential as eco‐friendly in packaging, construction, insulation, offering viable solution replace non‐renewable products.

Язык: Английский

---

Effect of Silybum marianum-derived nanocellulose as a sustainable functional filler on supramolecular structure of thermoplastic zein

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 143904 - 143904

Опубликована: Май 1, 2025

Thermoplastic zein (TPZ)-based bioplastics offer a promising alternative to conventional ones. However, they exhibit certain limitations, notably in terms of mechanical strength and barrier properties. These properties can potentially be enhanced by using fillers, such as nanocellulose, produce nanocomposites. In this study, bio-based nanocomposite films were produced compression molding melt mixing approach, employing TPZ combination with two different types Silybum marianum (SM)-derived cellulose nanocrystals (SM_CNC) or nanofibers (SM_CNF), at concentrations (3 wt%-10 wt%). The effect nanocelluloses on the structure was studied means X-ray diffraction correlated mechanical, thermal physical (water permeability UV resistance) obtained TGA, DMA, spectrophotometric tests. Incorporation both nanocellulose yielded changes film properties, according filler concentration. results demonstrated that SM_CNC SM_CNF increased only 5 wt%, raising modulus 25 % 27 %, respectively. Barrier property studies revealed also improved water resistance bio-nanocomposites but lower concentration wt%) which relevant protein structural occurred. Therefore, developed possess versatile make them candidate for packaging materials foods.

Язык: Английский

---

Effect of chitosan edible coating containing anthocyanins and tea polyphenols on cold storage of chilled pork

Frontiers in Nutrition, Год журнала: 2025, Номер 12

Опубликована: Май 7, 2025

Preserving fresh meat has been a long-standing challenge due to microbial growth and lipid oxidation. In this study, chitosan (CS) active coatings loaded with blackberry anthocyanins (BA), tea polyphenols (TP), their combination, designated as CS/BA, CS/TP, CS/BA/TP, were applied for chilled pork preservation. Compared CS coating alone, CS/BA/TP exhibited 9.3% lower total viable count (TVC), 45.5% reduction in thiobarbituric acid reactive substances (TBARS), 26.6% decrease volatile basic nitrogen (TVB-N) after 12 days of storage at 4°C. Furthermore, the combined use TP BA synergistic effect, most pronounced impact observed oxidative stability, while also improving inhibition maintaining color stability. These results highlight promising natural preservative extending shelf life.

Язык: Английский

---

Chitosan-based films enriched with anthocyanin compounds for potential use as food packaging

International Journal of Biological Macromolecules, Год журнала: 2025, Номер 317, С. 144867 - 144867

Опубликована: Июнь 1, 2025

Язык: Английский

---