{"title":"Tailoring biopolymer blends of gelatin and xanthan gum reinforced with cellulose through extrusion and casting: A comparative approach","authors":"J.F. Pereira , S. Mali , S.A. Cruz","doi":"10.1016/j.fpsl.2026.101721","DOIUrl":"10.1016/j.fpsl.2026.101721","url":null,"abstract":"<div><div>Biopolymers are widely recognized as sustainable alternatives to fossil-based plastics, but their practical application in packaging depends on balancing performance with scalability. Proteins such as gelatin offer excellent film-forming ability but suffer from brittleness, while polysaccharides like xanthan gum contribute flexibility and stability across variable conditions. Microcrystalline cellulose, with its reinforcing effect, further improves water resistance and mechanical strength. Despite the potential of these complementary biopolymers, most studies focus on formulations prepared by casting, a process simple but difficult to scale up. Little is known about how industrially relevant methods such as extrusion affect the structure and functionality of gelatin, xanthan gum, cellulose composites. This study addresses this gap by comparing films produced by casting and extrusion using a polymer matrix of gelatin, xanthan gum, and varying cellulose concentrations (2.5, 5.0, and 10.0 %). Casting resulted in films with a tensile strength 200 % higher than extruded ones, while extrusion led to an 800 % increase in elongation and yielded hydrophobic films (contact angle > 90°). All materials displayed amorphous structures and similar thermal stability, regardless of cellulose concentration. Overall, our findings demonstrate that the processing route is a decisive factor in defining the functionality of bio-based films. By showing how extrusion can be leveraged to tailor flexibility and surface properties, this work provides valuable insights for advancing scalable and high-performance alternatives to fossil-based plastics in sustainable food packaging.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"54 ","pages":"Article 101721"},"PeriodicalIF":10.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Leyi Li , Gege Su , Yiheng Deng , Xue Pan , Jiayin Hou , Wenhao Luo , Hua Zheng , Hongtao Lei , Xiangzhen Ge , Zonglin Guo
{"title":"Effects of carbonization temperature on the synthesis and antibacterial properties of honeysuckle carbon dots: Application in extending pork shelf life","authors":"Leyi Li , Gege Su , Yiheng Deng , Xue Pan , Jiayin Hou , Wenhao Luo , Hua Zheng , Hongtao Lei , Xiangzhen Ge , Zonglin Guo","doi":"10.1016/j.fpsl.2026.101710","DOIUrl":"10.1016/j.fpsl.2026.101710","url":null,"abstract":"<div><div>To extend chilled pork shelf life, honeysuckle (<em>Lonicera japonica Thunb</em>.) derived carbon dots (HOCDs) were synthesized via a one-step hydrothermal method and incorporated into film substrates composed of polyvinyl alcohol (PVA) and potato starch (PS). HOCDs showed enhanced antimicrobial activity against <em>Pseudomonas</em> and <em>Brochothrix thermosphacta</em> with the increase of temperature below 180 ℃ due to reduced particle size, improved dispersion, and increased C<img>O content, which resulted in more contact points with bacteria and promoted ROS generation thereby inducing irreversible bacterial damage. However, further increases in temperature resulted in decreased antimicrobial activity, as HOCDs exhibited particle agglomeration and a reduction in C<img>O content. HOCDs with a carbonization temperature of 180 ℃ (HOCDs-180) were incorporated into the film matrix. Composite films containing HOCDs-180 (≤2 wt%) exhibited significantly improved tensile strength (TS) and elongation at break (EB) (<em>P</em> < 0.05), with reduced water vapor permeability, attributed to hydrogen bonding interactions between HOCDs-180 and the film substrate. Conversely, higher loading caused HOCDs-180 aggregation and membrane uniformity disruption. Composite films extended pork shelf-life to 8 days, significantly reducing total volatile base nitrogen (TVB-N) and total viable count (TVC) (<em>P</em> < 0.05). These results demonstrate honeysuckle carbon dots' potential as novel freshness preservatives for chilled pork.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"54 ","pages":"Article 101710"},"PeriodicalIF":10.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Emanuela Lo Faro , Fabio Licciardello , Andrea Pulvirenti , Patrizia Fava
{"title":"Polycaprolactone/cutin blends for the improvement of moisture barrier and grease resistance of paper for food use","authors":"Emanuela Lo Faro , Fabio Licciardello , Andrea Pulvirenti , Patrizia Fava","doi":"10.1016/j.fpsl.2026.101722","DOIUrl":"10.1016/j.fpsl.2026.101722","url":null,"abstract":"<div><div>The increasing demand for sustainable food packaging has driven interest in biodegradable coatings to enhance the functional properties of paper-based materials, whose poor moisture barrier and grease resistance limit direct application in food packaging. This study investigates the potential of polycaprolactone (PCL)/cutin blend-based coatings at improving the functional properties of paper intended for food packaging applications. Two different PCL:cutin ratios (1:0.6 and 1:1) were applied on paper, with and without glycerol, as single and double-layer using the bar coating technique. The coated samples were evaluated for water vapor transmission rate (WVTR), grease resistance, contact angle, mechanical strength and seal strength. The findings indicate that the coatings significantly enhanced the moisture barrier, achieving a reduction of about 90 % of the WVTR with a double-layer coating made with PCL:cutin ratio of 1:0.6 (405 ± 12 g·day⁻¹·m⁻²), compared to uncoated paper (4348 ± 69 g·day⁻¹·m⁻²). Grease resistance tests confirmed that all coated samples exhibited maximum oil repellency, maintaining effectiveness even after mechanical folding. These results highlight the functionality of cutin, a naturally derived biopolymer, in enhancing PCL-based coatings as an effective and eco-friendly alternative for food packaging. The optimal formulation (PCL:cutin 1:0.6, double-layer coating) ensures moisture and grease resistance, good mechanical properties<strong>,</strong> making it a promising sustainable solution for the packaging industry.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"54 ","pages":"Article 101722"},"PeriodicalIF":10.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jahan Zaib Ashraf , Emmanouil D. Tsochatzis , Sandra Pati , Maria Luisa Amodio , Annalisa Apicella , Loredana Incarnato , Mario M. Martinez , Ivan M. Lopez-Rodulfo , Giancarlo Colelli
{"title":"Comprehensive study on the migration on non-intentionally added substances from food contact films of PBS, PLA, and their blends","authors":"Jahan Zaib Ashraf , Emmanouil D. Tsochatzis , Sandra Pati , Maria Luisa Amodio , Annalisa Apicella , Loredana Incarnato , Mario M. Martinez , Ivan M. Lopez-Rodulfo , Giancarlo Colelli","doi":"10.1016/j.fpsl.2026.101719","DOIUrl":"10.1016/j.fpsl.2026.101719","url":null,"abstract":"<div><div>This study investigated the migration of non-intentionally added substances from the biodegradable polymers polybutylene succinate (PBS), polylactic acid (PLA) and their blends. Migration tests were conducted using 10 % ethanol (hydrophilic simulant) and 50 % ethanol (lipophilic simulant), at 20 °C and 40 °C, for 10 days, and at 70 °C, for 2 h, in accordance with EU Commission Regulation 10/2011. Gas Chromatography Quadrupole Time-Of-Flight Mass Spectrometry (GC-QTOF-MS) and Ultra-High Performance Liquid Chromatography Quadrupole time-Of-Flight Mass Spectrometry (UHPLC-QTOF-MS) were employed to characterize both migrated volatile organic compounds (VOCs) and semi-/non-volatile compounds, respectively. PBS/PLA blends released higher concentration of VOCs than the neat polymers, whereas the release of PBS and PLA oligomers was strongly affected by simulant and temperature. Although all samples complied with EU Regulation, the findings showed that a comprehensive analysis of the migrated compounds is very important for the in-depth risk assessment of biodegradable polymers.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"54 ","pages":"Article 101719"},"PeriodicalIF":10.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guitao Du, Xiaoqian Zhang, Jie Zou, Hao Hu, Yuqing Sun, Zepeng Lei, Xiaohui Wang
{"title":"All biomass-based superhydrophobic aqueous coatings enabled by lignin-containing nanocellulose","authors":"Guitao Du, Xiaoqian Zhang, Jie Zou, Hao Hu, Yuqing Sun, Zepeng Lei, Xiaohui Wang","doi":"10.1016/j.fpsl.2026.101718","DOIUrl":"10.1016/j.fpsl.2026.101718","url":null,"abstract":"<div><div>Achieving sustainable superhydrophobic surfaces remains a major challenge due to the pervasive use of fluorinated, silane, or nanoparticle-based modifiers that rely on toxic or non-degradable components and organic solvents. Here, we report an all-biomass, aqueous strategy for constructing multifunctional superhydrophobic coatings based on lignin-containing dissolution-regenerated nanocellulose (LDNC). LDNC, prepared via the co-dissolution and co-regeneration of cellulose and lignin, exhibits excellent water dispersibility and amphiphilicity. This unique structure enables stable emulsification of beeswax and facile spray fabrication of an all-biobased superhydrophobic coating. The resulting coated paper exhibits excellent water resistance and moisture barrier properties, effectively preventing food deterioration under high humidity and extending shelf life. Additional functionalities such as photothermal de-icing and antibacterial activity are imparted, making the coating highly suitable for food packaging. Together, this work introduces a solvent-free, fully bio-based pathway to superhydrophobic coatings, bridging functionality with sustainability and offering a scalable route toward next-generation green surface protection and packaging materials.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"54 ","pages":"Article 101718"},"PeriodicalIF":10.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tommaso Bellesia , Daniele Carullo , Andrea Fachin , Maral Soltanzadeh , Masoud Ghaani , Giorgio Innocenzo Ascrizzi , Laura Piazza , Stefano Farris
{"title":"Microfibrillated cellulose films from agri-food wastes and plant residues for food packaging applications – A comparative investigation","authors":"Tommaso Bellesia , Daniele Carullo , Andrea Fachin , Maral Soltanzadeh , Masoud Ghaani , Giorgio Innocenzo Ascrizzi , Laura Piazza , Stefano Farris","doi":"10.1016/j.fpsl.2026.101728","DOIUrl":"10.1016/j.fpsl.2026.101728","url":null,"abstract":"<div><div>Cellulose from three agri-waste feedstocks—giant cane, <em>Posidonia oceanica</em> seagrass, and coffee silverskin—was processed into aqueous dispersions (1% by weight) of microfibrillated cellulose (MFC) via high-pressure homogenization (HPH) to produce stand-alone films for potential food packaging applications. Rheology, stability, and morphology of dispersions, as well as optical, barrier, mechanical, morphological, and surface properties of the resulting films were evaluated, with Sylvicta® used as a commercial reference. Atomic Force Microscopy (AFM) confirmed successful MFC production (average diameter < 100 nm) after HPH. The dispersions showed good stability (ζ-potential < 30 mV), shear-thinning, and strong-gel behavior (G’/ G’’ ≈ 10). Regardless of cellulose source, the films performed similarly to the commercial solution, including excellent oxygen barrier properties [oxygen transmission rate < 0.01 cm<sup>3</sup> (STP) m<sup>−2</sup> day<sup>−1</sup> under dry test conditions], high stiffness (Young’s modulus ≈ 7.5 GPa), tensile strength (≈ 85 MPa), and effective UV-shielding. Surface wettability differed: the commercial sample exhibited a higher contact angle (≈ 115°) than the prepared films (≈ 55–95°). Nonetheless, all samples showed initial spreading of the water droplet followed by absorption. This study demonstrates the potential of valorizing agri-food waste and plant residues into sustainable, high-performance cellulosic films for food packaging. The approach supports circular economy strategies and helps reduce the environmental impact of plastics.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"54 ","pages":"Article 101728"},"PeriodicalIF":10.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrea Feroce , Sara Exojo-Trujillo , José Manuel López Vilariño , Fabio Licciardello , Rafael Gavara , Carol López-de-Dicastillo
{"title":"Upcycling of post-consumer PLA into active packaging films: Structural and functional assessment of rPLA/PCL blends with quercetin","authors":"Andrea Feroce , Sara Exojo-Trujillo , José Manuel López Vilariño , Fabio Licciardello , Rafael Gavara , Carol López-de-Dicastillo","doi":"10.1016/j.fpsl.2026.101700","DOIUrl":"10.1016/j.fpsl.2026.101700","url":null,"abstract":"<div><div>The detrimental impact on the environment derived from the wrong management of conventional plastics is promoting the use of biobased and biodegradable materials for food packaging. Specifically, poly(lactic acid) (PLA) is characterized by its compostability, availability and its easy processing by melt extrusion, becoming one of the most used biopolymers in the industry. Because PLA is a valuable polyester, its recyclability should be considered as an alternative to compostability. In this work, the post-consumer recycled PLA (rPLA) obtained after simulating the service life and recycling processes of commercial PLA-based water bottles was used to develop new active packaging systems. Polycaprolactone (PCL), a polyester known for its excellent deformability, was added to mitigate the deterioration of rPLA during its reprocessing and afford different characteristics. Likewise, the addition of quercetin (Q), a natural polyphenolic antioxidant, can increase the interaction between both polymers and allow a greater preservation of food sensitive to oxidation through its progressive release. In this work, active films based on rPLA and PCL blends at different ratios (85/15 and 70/30) incorporating Q at 3 wt% were melt-extruded. Thermal, optical, diffusional (specific and overall migration) and morphological properties were analyzed, in addition to their antioxidant capacity and Q release profiles. Micrographs showed polymeric blends exhibited spherical-shaped PCL particles surrounded by rPLA matrix, and their characterization indicated the blending with PCL and Q increased rPLA crystallinity. In addition, the release of Q and their antioxidant activity increased with PCL concentration and ethanol content in the food simulant.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"53 ","pages":"Article 101700"},"PeriodicalIF":10.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lang Cai , Jiaqi Yang , Yanjia Wang , Fangsheng Hu , Binxin Liang , Wenting Qiu , Shixin Song , Lei Yu
{"title":"Quaternary ammonium chitosan-based film reinforced with antibacterial Pickering emulsion synergistically stabilised by shellac nanoparticles and ε-polylysine for fruit preservation","authors":"Lang Cai , Jiaqi Yang , Yanjia Wang , Fangsheng Hu , Binxin Liang , Wenting Qiu , Shixin Song , Lei Yu","doi":"10.1016/j.fpsl.2026.101699","DOIUrl":"10.1016/j.fpsl.2026.101699","url":null,"abstract":"<div><div>This study aims to construct an antibacterial Pickering emulsion using the synergistic effect between shellac nanoparticles (SNPs) and ε-polylysine (ε-PL) to functionalise quaternary ammonium chitosan (QAC) films and apply them for fruit preservation. Results demonstrate that adjusting the ε-PL content can effectively modulate the stability, viscoelasticity and antibacterial properties of Pickering emulsions. Notably, the S-50 % ε-PL Pickering emulsion exhibits superior stability and viscoelasticity under acidic conditions and thereby effectively inhibits the growth of <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>. Furthermore, the reversible transformation from demulsification to re-emulsification of an S-50 % ε-PL emulsion can be achieved by adjusting the pH. The re-emulsified Pickering emulsion exhibits physicochemical properties and demonstrates antibacterial performance similar to those of the original emulsion, indicating its excellent structural and functional recoverability. Notably, the incorporation of the S-100 % ε-PL emulsion addresses the QAC film’s limitations in terms of barrier property, thermal stability and antibacterial activity. When compared with untreated and pure QAC films, the Pickering emulsion–modified QAC films considerably inhibit microbial contamination of cherries and strawberries and delay their quality deterioration, as evidenced by key indicators, such as weight loss, pH, firmness, vitamin C, titratable acidity and total soluble solids. This study offers a novel strategy for designing antimicrobial Pickering emulsions and multifunctional biobased films.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"53 ","pages":"Article 101699"},"PeriodicalIF":10.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ziying Chen , Yi-Jun Cao , Jie-Ping Fan , Jia Chen
{"title":"Advanced screening strategies for non-intentionally added substances (NIAS) in plastic food contact materials: Progress and challenges, and future perspectives","authors":"Ziying Chen , Yi-Jun Cao , Jie-Ping Fan , Jia Chen","doi":"10.1016/j.fpsl.2026.101697","DOIUrl":"10.1016/j.fpsl.2026.101697","url":null,"abstract":"<div><div>Plastics in food packaging risk leaching regulated intentionally added substances (IAS) and unregulated NIAS, threatening consumer health. Currently, targeted LC-MS/MS workflows are effective in tracking IAS migration, but non-targeted screening of NIAS in complex polymer matrices (e.g., multilayer thin films) is still restricted by limited libraries, low-abundance signals, and fuzzy regulatory thresholds. This review highlights advanced NIAS screening tools (ion mobility-HRMS, AI-driven toxicology) and proposes a risk-priority framework to guide safer, sustainable packaging innovation. By addressing these unmet needs, this work aims to bridge the gap between analytical innovation and risk management in NIAS assessment.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"53 ","pages":"Article 101697"},"PeriodicalIF":10.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carlos Estremera , Silvia Lóbez , Fallah Belgharbi , Ana M. Mainar , Cristina Nerín , Paula Vera
{"title":"Super-Critical Fluid Extraction (SFE) with CO2 as decontamination step for recycling polyethylenes for food contact","authors":"Carlos Estremera , Silvia Lóbez , Fallah Belgharbi , Ana M. Mainar , Cristina Nerín , Paula Vera","doi":"10.1016/j.fpsl.2025.101682","DOIUrl":"10.1016/j.fpsl.2025.101682","url":null,"abstract":"<div><div>The recycling of polyolefins remains a significant challenge in the context of food contact materials (FCM) due to contamination by both volatile and non-volatile compounds. Supercritical Fluid Extraction (SFE) with carbon dioxide (CO<sub>2</sub>) has emerged as a promising technology for being included as an efficient step of decontamination or postconsumer polyolefins, ensuring their safety and quality for food contact applications. This study evaluates the capability of SFE to decontaminate postconsumer polyolefin-based materials, including multilayer polyethylene (PE) and polyamide 6,6 (PA-6,6) plastic bags, high density polyethylene (HDPE) containers, and post-consumer HDPE packaging, all previously in contact with food. A non-targeted analytical approach was applied using headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) and ultrahigh performance liquid chromatography coupled to a quadrupole-time-of-flight mass spectrometer (UPLC-QTOF-MS) to detect and semi-quantify contaminants before and after SFE treatment and a total of 121 compounds were detected in this non-target analysis. Among them, several common plastic additives and various food-derivative compounds, degradation or oxidation products of these additives were found. The results demonstrated up to 99 % decontamination efficiency for volatile compounds and 75 % for non-volatiles, based on the total concentration of compounds before and after the SFE process. These efficiencies highlight the potential of SFE as a critical step for enhancing the quality of recycled polyolefins. The study underscores the role of SFE in advancing the recyclability of polyolefins within the framework of a circular economy. By addressing contamination challenges—both chemical and structural—and enabling the safe reuse of materials in food contact applications, this technology contributes to reducing plastic waste and promoting sustainable material management.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"53 ","pages":"Article 101682"},"PeriodicalIF":10.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145788873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}