Bio-based and biodegradable packaging combined with chemical sensors indicators has attracted great attention as they can provide protection information on the actual freshness of foodstuffs. In this study, we present an effective, biodegradable, mostly bio-sourced material ideal for sustainable that also be used a smart indicator ammonia (NH3) vapor food spoilage. The developed comprises blend poly(lactic acid) (PLA) poly(propylene carbonate) (PPC) loaded curcumin (CCM), which is fabricated...

A water-based process to convert vegetable waste into bioplastic films with appealing properties for packaging.

Sustainable biocomposites have been developed by solvent mixing of poly(lactic acid) (PLA) with a fine powder cocoa bean shells (CBS) and subsequent solution casting, using different concentrations CBS. The inclusion CBS recovers the crystallinity initially amorphous PLA films improves physical properties composites. Young's modulus increases 80% 75 wt % inclusion; however, composites maintain plasticity. barrier hydrophobic were characterized, water vapor permeability is found to be ca. 3.5...

In this study, we present the development of eco-friendly biocomposites composed polylactic acid (PLA) and microcrystalline cellulose (MCC), using melt extrusion compression molding processes. all studied samples, PLA/MCC ratio was always 1:1, whereas plasticizer triethyl citrate (TEC) responsible for improved dispersion MCC in PLA. Tensile tests proved that developed containing TEC show ductility crystallinity, as confirmed by X-ray diffraction (XRD) study. Furthermore, water vapor oxygen...

The industrial processing of avocados annually generates more than 1.2 million tons avocado peels (APs) and seeds (ASs) that have great potential in the production active bioplastics, although they never been considered for this aim until now. Separately, APs ASs, as well a combination (APSs), were evaluated here first time preparation antioxidant films, with application food packaging. Films prepared by casting, after their three different methods: (1) hydrolysis acid media, (2) followed...

The proliferation of petroleum-derived plastics has led to environmental concerns, prompting the exploration sustainable alternatives. This study deals with development natural polymeric composite materials that can be used as alternatives conventional plastics. In particular, biocomposite films were prepared by hot pressing a blend carrot pomace (CP) 10, 30 and 50 wt% two vegetable proteins: wheat gluten (Gn) zein (Z), for optimization final properties developed biomaterials. resulting...

Multifunctional bioplastics have been prepared by amorphous reassembly of cellulose, hemicelluloses (xylan), and hydrolyzed lignin. For this, the biopolymers were dissolved in a trifluoroacetic acid–trifluoroacetic anhydride mixture blended different percentages, simulating those found natural woods. Free-standing flexible films obtained after complete evaporation solvents. By varying xylan lignin contents, physical properties easily tuned. In particular, higher proportions improved...

The accelerated increase in freshwater demand, particularly among populations displaced remote locations where conventional water sources and the infrastructure required to produce potable may be completely absent, highlights urgent need creating additional supply from untapped alternative via energy-efficient solutions. Herein, we present a hydrophilic self-floating photothermal foam that can generate seawater atmospheric moisture solar-driven evaporation at its interface. Specifically,...

Walnut shell (WS) has been demonstrated to be a promising and sustainable reinforcement in polymer composites. However, the evaluation of overall properties provided by this lignin-rich food residue biopolymer composites, for their use packaging market, not evaluated yet. In work, composite films thermoplastic starch (TPS) containing either WS or hydrolyzed (HWS) plasticized with polyglycerol were prepared spray drying, followed extrusion compression molding. TPS composites HWS exhibited...

In line with the growing demand for green alternatives to conventional petroleum-derived plastic packaging, fully bio-based and biodegradable biocomposites were developed this work, purpose of packaging dry foods, following principles circular economy. Solutions plasticized chitosan (pCS) blended varying amounts hydrolyzed orange peel (hOP) waste produce films by casting. The hydrolytic pretreatment peels enabled creation containing up 80 wt% hOP, while formulation 70 hOP had best general...

Abstract Electronics and mechatronics waste is an exponentially increasing environmental issue, especially for wearable devices, due to their widespread diffusion into society short life cycle. To promote enormous benefits (e.g., in assisting visually impaired individuals) a sustainable way, biobased and/or biodegradable organic materials should be used instead of traditional components. This manuscript presents multidisciplinary approach, which bridges science mechatronics, propose the...

New sustainable composite materials inspired by plant cuticles have been fabricated impregnation of fibrous cellulose substrates with a naturally occurring polyhydroxylated fatty acid (9,10,16‐trihydroxypalmitic or aleuritic acid) and subsequent polymerization the latter into polyaleuritate. A two‐step preparation method is used, comprising spraying hot‐pressing. The hot‐pressing temperature critical for extent polyaleuritate its alteration allows fine tuning mechanical properties, opacity,...

The separation of oil from water in emulsions is a great environmental challenge, since oily wastewater industrially produced. Here, we demonstrate highly efficient method to separate non-stabilized emulsions, using functionalized cellulose fiber networks. This achieved by the modification wetting properties fibers, transforming them oil- and water-absorbing oil-proof. In particular, two diverse layers polymeric coatings, paraffin wax poly(dimethylsiloxane)-b-poly(ethylene oxide)...

<title>Abstract</title> Background and Aim: Antibiotics constitute one of the most routinely used medications in clinical settings. However, antimicrobial resistance (AMR) is inevitable irreversible natural consequence bacterial cell adaptation to exposure antimicrobials. Conversely, there limited study on antibiotic pattern bacteria isolated from infected wounds. This assessed prevalence magnitude wounds among Ghanaians. Methods experimental cross-sectional included 300 patients with...

Eco-friendly blends of polylactic acid (PLA)/polyhydroxybutyrate (PHB) have been developed with the use a sustainable plasticizer, namely epoxidized soybean oil methyl ester (ESOME). While PLA, PHB, and their are highly valued for bio-origin compostability at end lifecycle, enhancing flexibility improved processability broadening range applications is an ongoing challenge. For this reason, we present formulation PLA/PHB varying ESOME concentrations, processed by extrusion compression...

Poly(furfuryl alcohol) (PFA) is a bioresin synthesized from furfuryl alcohol (FA) that derived renewable saccharide-rich biomass. In this study, we compounded with polycaprolactone (PCL) for the first time, introducing new functional polymer blends. Although PCL biodegradable, its production relies on petroleum precursors such as cyclohexanone oils. With method proposed herein, dependence petroleum-derived precursors/monomers reduced by using PFA without significantly modifying some...

Poly(3-hydroxybutyrate), a green polymer originating from prokaryotic microbes, has been used to prepare composites with graphene nanoplatelets (GnP) at different concentrations. The films were fabricated by drop-casting and hot-pressed temperature lower than their melting point provide the molecular chains enough energy reorientate while avoiding degradation. It was found that hot-pressing increases crystallinity improves mechanical properties. Young's modulus increased 1.2 1.6 GPa for...