In this research, different contents of eugenol in the 2.5-25 wt.% range were first incorporated into ultrathin fibers poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by electrospinning and then subjected to annealing obtain antimicrobial monolayers. The most optimal concentration PHBV monolayer was 15 since it showed high electrospinnability thermal stability also yielded highest bacterial reduction against Staphylococcus aureus (S. aureus) Escherichia coli (E. coli). This...

The main goal of this study was to develop poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films with long-term antimicrobial capacity interest in food packaging applications. To end, eugenol first highly efficiently encapsulated at 50 wt.-% the pores mesoporous silica nanoparticles by vapor adsorption. eugenol-containing were then loaded 2.5–20 range into PHBV electrospinning and resultant electrospun composite fibers annealed 155 °C produce continuous films. characterization showed...

The present study evaluated the effect of using electrospun polycaprolactone (PCL) as a barrier coating and black pepper oleoresin (OR) natural extract on morphology, thermal, mechanical, antimicrobial, oxygen, water vapor properties solvent cast gelatin (GEL). antimicrobial activity developed multilayer system obtained by so-called electrospinning technique was also against Staphylococcus aureus strains for 10 days. results showed that containing PCL OR increased thermal resistance,...

In this research, the antibacterial and antioxidant properties of oregano essential oil (OEO), rosemary extract (RE), green tea (GTE) were evaluated. These active substances encapsulated into ultrathin fibers poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from fruit waste using solution electrospinning, resultant electrospun mats annealed to produce continuous films. The incorporation resulted in PHBV films with a relatively high contact transparency, but it also induced...

This study introduces a new and bio-friendly adsorbent based on natural cetyltrimethylammonium chloride (CTAC)-modified prepared from wheat straw residues for the removal of Congo red (CR) tartrazine azo-anionic dyes aqueous solution. The was characterized by thermogravimetric analysis (TGA), calorimetric differential (DSC), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX), pH point zero charge (pHPZC) techniques. It found that decreasing dose increasing...

Electrospinning has been used to develop and upscale polyacrylonitrile (PAN) nanofibers as effective aerosol filtration materials for their potential use in respirators. The fibers were deposited onto non-woven spunbond polypropylene (SPP) the basis weight (grammage, g/m2) was varied assess resulting effect on efficiency breathing resistance of materials. results indicated that a excess 0.4 g/m2 PAN electrospun yielded over 97%, with values increased proportionally amount added. With aim...

This study focused on the development of gelatin-based films with incorporation microcrystalline cellulose as reinforcement material. Clove (Syzygium aromaticum), nutmeg (Myristica fragrans), and black pepper (Piper nigrum) oleoresins containing antimicrobial compounds natural origin were incorporated into films. The mechanical, thermal, optical, structural properties, well color, seal strength permeability to water vapor, light, oil determined. Adding gelatin matrix increased elongation...

This research reports about the development by electrospinning of fiber-based films made poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from fermented fruit waste, so-called bio-papers, with enhanced antimicrobial performance. To this end, different combinations oregano essential oil (OEO) and zinc oxide nanoparticles (ZnONPs) were added to PHBV solutions electrospun into mats that were, thereafter, converted homogeneous continuous ~130 μm. The morphology, optical, thermal,...

Active multilayer films based on polyhydroxyalkanoates (PHAs) with and without high barrier coatings of cellulose nanocrystals (CNCs) were herein successfully developed. To this end, an electrospun antimicrobial hot-tack layer made poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from cheese whey, a by-product the dairy industry, was deposited previously manufactured blown film commercial food contact PHA-based resin. A hybrid combination oregano essential oil (OEO) zinc oxide...

Every year the world loses about 50% of fruits and vegetables post-harvest in supply chain. The use biodegradable coatings films with antioxidant properties has been considered an excellent alternative to extend shelf life food. Therefore, objective this work was develop a coating based on yam (Dioscorea rotundata L.) starch-containing lime, fennel, lavender essential oils strawberries (Fragaria vesca l.). tensile properties, barrier (water vapour permeability (WVP) oxygen (OP)), moisture...

Bacterial infections in the oral cavity can become a serious problem causing pain, sores and swelling for several weeks. This type of infection could be alleviated using mucoadhesive delivery systems, allowing local administration antibiotic to inhibit bacterial spreading. work reports development multilayer patch containing ciprofloxacin hydrochloride (CPX)-loaded electrospun fibers treatment such infections. For this, release kinetics CPX-loaded was modulated different ratios polyester...

Food quality is mainly affected by oxygen through oxidative reactions and the proliferation of microorganisms, generating changes in its taste, odor, color. The work presented here describes generation further characterization films with active scavenging properties made poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) loaded cerium oxide nanoparticles (CeO2NPs) obtained electrospinning coupled to a subsequent annealing process, which could be used as coating or interlayer multilayer...

Sustainable hydrogels are an innovative biodegradable alternative to traditional packaging materials. They offer exceptional water absorption capacity and high biocompatibility, making them ideal food absorbents reduce plastic waste, extend shelf life ensure the safety quality of packaged foods. In this study, based on gelatin, microcrystalline cellulose (MCC), nanocrystalline (NCC) were developed, characterized, applied in chicken breasts. For this, MCC was isolated from banana pseudostem...

Biodegradable films are sustainable alternatives to conventional plastics, particularly in food preservation, where the barrier and mechanical properties crucial for maintaining physicochemical, microbiological, sensory qualities of product. This study evaluated made from starches corn, potato, cassava, yam, wheat determine their effectiveness preserving cherry tomatoes. Amylose content, a key factor influencing crystallinity films, varied among sources, with starch having highest (28.2%)...

En el trabajo se determinaron las caracteristicas opticas y estructurales de nanoparticulas polvo ajo (Allium sativum L.), obtenidas por reduccion seleccion tamano, para comparacion con muestras comercial. El tamano particula determino empleando microscopia electronica transmision (TEM) caracterizaciones optica estructural realizaron, respectivamente, espec-troscopia infrarroja transformada Fourier (FTIR) difraccion rayos X (DRX). Para determinar efecto cuando fueron aplicadas sobre trozos...