{"title":"Food packaging for ripening and preserving banana based on ethylene-loaded nanofiber films deposited with nanosized cyclodextrin metal-organic frameworks and TiO2 nanoparticles","authors":"","doi":"10.1016/j.fpsl.2024.101332","DOIUrl":"10.1016/j.fpsl.2024.101332","url":null,"abstract":"<div><p>In this paper, we designed a food packaging which could not only accelerate the postharvest ripening of banana, but also prolong the shelf life of banana. First, we prepared polycaprolactone (PCL) nanofibers deposited with nanosized γ-cyclodextrin metal-organic frameworks (CD-MOFs) and TiO<sub>2</sub> nanoparticles (TiO<sub>2</sub> @CD-MOF@PCL), CD-MOFs were used to encapsulate ethylene, and TiO<sub>2</sub> nanoparticles were used to degrade ethylene. The ethylene adsorption capacity of nanosized CD-MOF was evaluated, and results showed that the isosteric enthalpy of adsorption (Δ<em>H</em><sub>ads</sub>) was −41.58 kJ/mol. The ethylene pressure, as the critical factor, led to ethylene loading content reaching 1.46 % by 1.6 MPa pressure, 25 °C temperature, 24 h encapsulation time, and 10 min electrospraying time. The releasing behavior of ethylene was affected by humidity and temperature, and under 90 % RH and 20 °C, 92.12 % ethylene was released on the 3th day. The photooxidation degradation experiment proved that as the TiO<sub>2</sub> nanoparticle loading content increased from 1 % to 3 %, the photooxidation degradation activity increased. The degradation rate of ethylene was improved as ethylene concentration increased. In addition, E @ TiO<sub>2</sub> @CD-MOF@PCL (E represents ethylene) nanofiber film was proved that it could shorten ripening period of banana by releasing ethylene. After being irradiated by ultraviolet, shelf life of banana was prolonged by degrading ethylene.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947012","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}
{"title":"Changes in raspberry sensory quality after harvest as affected by CO2 atmospheres","authors":"","doi":"10.1016/j.fpsl.2024.101335","DOIUrl":"10.1016/j.fpsl.2024.101335","url":null,"abstract":"<div><p>CO<sub>2</sub> atmospheres have the potential to influence raspberry (<em>Rubus idaeus</em> L.) sensory quality after harvest. Our study determined the optimal postharvest atmosphere to extend shelf life without negatively impacting sensory quality. Raspberry fruit were stored at 5 ℃ in 15, 8, 5 or 0.03 kPa CO<sub>2</sub> in combination with 6, 13, 16 or 21 kPa O<sub>2</sub>, respectively. A trained sensory panel conducted a descriptive sensory evaluation of the raspberry fruit after 5, 10, and 13 d of storage. Raspberries stored in 15 kPa CO<sub>2</sub> with 6 kPa O<sub>2</sub> (15 kPa) atmosphere followed by that in 8 kPa CO<sub>2</sub> with 13 kPa O<sub>2</sub> (8 kPa) atmosphere had higher firmness than that in 5 kPa CO<sub>2</sub> with 16 kPa O<sub>2</sub> (5 kPa) and 0.03 kPa CO<sub>2</sub> with 21 kPa O<sub>2</sub> (0.03 kPa) atmosphere. Panelists found that raspberries stored in 8 kPa and 15 kPa CO<sub>2</sub> atmosphere had the least off-flavor and highest tartness. Raspberries stored in 8 kPa scored highest in raspberry flavor with substantial juiciness and sweetness scores. The fermentative volatiles acetaldehyde and ethanol were higher in raspberries stored in 15 kPa despite the low off-flavor scores, while most other raspberry volatiles decreased with increasing CO<sub>2</sub> concentration, including flavor-related volatiles α-ionone, α-terpineol, limonene and linalool. After 10 d, the quality of raspberries stored in 0.03 kPa or 5 kPa atmosphere had degraded considerably. While 15 kPa atmosphere prolonged shelf life the longest, 8 kPa atmosphere prolonged shelf life to 10 d while maintaining sensory quality and was the best overall atmosphere.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214289424001005/pdfft?md5=f5ce180b9bd9a34a96678eec869ed1da&pid=1-s2.0-S2214289424001005-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Safety assessment of silicone molds for food use: A comprehensive analysis of migration patterns and volatile compound release in European markets","authors":"","doi":"10.1016/j.fpsl.2024.101334","DOIUrl":"10.1016/j.fpsl.2024.101334","url":null,"abstract":"<div><p>Silicones can contain oligomers known as siloxanes, which are either by-products of the polymerization process or arise from chemical reactions during processing. They may also have both intentionally and non-intentionally added substances, making it crucial to verify that silicone molds are safe and appropriate for food use. In this study 44 silicone molds available in the market from different European countries were studied. Triple sequential migration assays at 100 ºC for 8 h each using food simulants (3 % acetic acid, 20 % ethanol, and 50 % ethanol) were conducted. Some samples were also tested 4 h at 100 ºC. Global migration assessments were only conducted on turbid samples, while qualitative and quantitative analyses of volatile compounds were performed using solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) in total immersion mode. During the screening analysis of samples of 50 % ethanol at 100 ºC for 8 h a total of 112 different volatile compounds were tentatively identified by MS spectra and quantitatively estimated (LODs = 0.00005–0.014 mg/kg). However, there was no observable migration in the case of 3 % acetic acid and 20 % ethanol. All samples comply with the legislation (Royal Decree 847/2011) in the case of siloxanes. Some samples exceeded specific migration limits for volatile compounds other than siloxanes after third migration in 50 % EtOH at 100 ºC for 8 h.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214289424000991/pdfft?md5=bb7c8feb8167d7c3b2cfd6a118a080b7&pid=1-s2.0-S2214289424000991-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic effect of iron-based metal-organic framework hybridized with carbon quantum dots in agar/gelatin films for fruit preservation","authors":"","doi":"10.1016/j.fpsl.2024.101330","DOIUrl":"10.1016/j.fpsl.2024.101330","url":null,"abstract":"<div><p>A novel hybrid nanostructure was synthesized by functionalizing an iron-based metal-organic framework (MOF) with carbon quantum dots (CD@MOF). The developed CD@MOF had an octahedral crystal structure and exhibited favorable antioxidant, antifungal, and antibacterial activities. MOF and CD@MOF particles are incorporated into agar/gelatin (Agar/Gel) blend polymers. The compatibility and dispersion of CD@MOF in the polymer were confirmed through FTIR, XPS, and SEM analysis. The conjugation of MOF with CDs enriched in active edges resulted in superb antioxidant (71.9 % DPPH and 100 % ABTS) and antibacterial activities. The addition of CD@MOF increased the tensile strength and gas (water vapor and oxygen) barrier and UV barrier (100 % UV blocking) properties of the film. In addition, tomato fruits were packaged with fabricated films and stored at 4 ℃ for 24 days, and quality changes were investigated. The experimental outcomes indicated the effective preservation performance of the Agar/Gel/CD@MOF films on packaged tomatoes.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946941","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}
{"title":"Self-assembled Chitosan/Polyvinyl alcohol hydrogel film incorporated with TiO2 with excellent stability, mechanical and antibacterial properties for the preservation of chilled pork","authors":"","doi":"10.1016/j.fpsl.2024.101328","DOIUrl":"10.1016/j.fpsl.2024.101328","url":null,"abstract":"<div><p>The antibacterial active packaging's highly effective bacteriostatic property is essential for extending the shelf life of chilled meat. The present study fabricated an antibacterial hydrogel film by utilizing chitosan (CS) and polyvinyl alcohol (PVA) as the substrate supplemented with TiO<sub>2</sub>. The SEM results revealed that the PVA/CS hydrogel film, cross-linked with citric acid as a cross-linking agent, exhibited smooth surface and consistently cross-sectional morphology. The FTIR analysis revealed that the incorporation of TiO<sub>2</sub> resulted in a reduction in the cross-linking effect of CS and PVA, as well as a decrease in the film's break elongation. The incorporation of 0.20 % TiO<sub>2</sub>, however, significantly enhanced the tensile strength, water barrier property, water absorption capacity, and thermal stability of the film. The 0.20 %TiO<sub>2</sub>/PVA/CS composite exhibited significant antibacterial activity against <em>Pseudomonas</em> and <em>Acinetobacter</em> putrefaction in chilled pork meat, as demonstrated by in vitro experiments. The preservation experiment demonstrated a synergistic antibacterial effect between CS and TiO<sub>2</sub>, leading to a significant reduction in microbial growth during storage. The addition also enhanced the water retention properties of meat and effectively extended the shelf life of pork to 15 d. The findings indicate that the TiO<sub>2</sub>/PVA/CS demonstrates significant potential for application as an innovative packaging material.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947016","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}
{"title":"The effect of polylactic acid-based blend films modified with various biodegradable polymers on the preservation of strawberries","authors":"","doi":"10.1016/j.fpsl.2024.101333","DOIUrl":"10.1016/j.fpsl.2024.101333","url":null,"abstract":"<div><p>Polylactic acid (PLA) has garnered much attention in the field of fruit and vegetable packaging. Despite its poor flexibility and water resistance, PLA film faces challenges in being used for strawberry storage and freshness preservation due to its inability to maintain flavor quality. In this study, a series of PLA-based modified films was produced by melt blending and extrusion cast processing with PLA as the main component, along with flexible biodegradable polyesters or polycarbonate as the secondary component. First, five different biodegradable polymers were used to investigate the effect of the flexibility and barrier properties of different dispersed phases on the morphology, mechanical properties, and water vapor barrier of PLA-based blend films. Next, the impact on the freshness of strawberries was assessed through examination of fruit color and weight, as well as the levels of O<sub>2</sub> and CO<sub>2</sub> in the packaging bags. The results showed that the size of the dispersed phase and interfacial bonding with PLA were the key factors determining the mechanical and barrier properties of the blend films. The PLA-polycaprolactone (PCL) blend showed the best compatibility among them, with PCL having the smallest dispersion size (<em>D</em>=0.58 µm), higher toughness than the other four PLA blends, and greater enhancement of PLA. Additionally, it exhibited a similar rate of quality loss in strawberry preservation compared to commercial PE. As a result, the color and luster were more completely preserved. The results of this study may help the future development of degradable plastics, to reduce environmental pollution.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141947015","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}
{"title":"Xanthohumol combined with chitosan-oxidized starch film as a potential new strategy for food packaging: Characterization, physicochemical and biological properties","authors":"","doi":"10.1016/j.fpsl.2024.101326","DOIUrl":"10.1016/j.fpsl.2024.101326","url":null,"abstract":"<div><p>Foodborne pathogens are still the main culprits causing food decay and diseases, while it has become a new development trend to use natural polymer biomaterials combined with natural active compounds in food packaging research. This study firstly combined isopentenyl chalcone active compound xanthohumol (XN) with cheap source potential and chitosan/oxidized starch film (CS/OS) to develop a novel multifunctional chitosan/oxidized starch/xanthohumol (CS/OS/XN) packaging film. The effects of different mass ratios (0.05 %, 0.1 %, 0.25 %, 0.5 % and 1 %) of XN on physicochemical and biological properties were studied. The results showed that CS/OS/XN films demonstrated non-chemical compatibility with enduring water vapor barrier ability and water locking performance. However, DPPH antioxidant assay showed that the antioxidant properties could not be improved significantly when the amount of XN was added less than 1 % and the antibacterial ability against <em>Escherichia coli</em> (<em>E. coli</em>) was significantly improved than <em>Staphylococcus aureus</em> (<em>S. aureus</em>). This study expanded the application of natural active compound for food packaging.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141769417","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}
{"title":"Preparation of transparent and flexible regenerated kenaf CNF composite films with curcumin-metal complex for food packaging applications","authors":"","doi":"10.1016/j.fpsl.2024.101327","DOIUrl":"10.1016/j.fpsl.2024.101327","url":null,"abstract":"<div><p>Cellulose nanofibers (CNF) derived from kenaf plant were combined with curcumin (Cur)-metal complexes to produce regenerated composite films. Cur was used to synthesize homoleptic Cur-metal complexes with diamagnetic Zn(II) and paramagnetic Cu(II) metal ions. Cur-Zn(II) complex and Cur-Cu(II) complex were synthesized under the same reaction conditions to check the synergistic effect of engaging the diketone electrons of Cur with strong coordination bonds with two different metal ions. The synthesized Cur-metal complexes were used as fillers to produce CNF composite films for biodegradable food packaging film. Results showed that the Cur-Zn(II) complex-loaded CNF composite films exhibit higher antioxidant activity than other films whereas Cur-Cu(II) complex-loaded CNF composite films showed prominent antibacterial activity against foodborne pathogenic bacteria such as <em>Listera monocytogenes</em> and <em>Escherichia coli</em>. It is due to the coordination of the diketone electron of Cur with diamagnetic and paramagnetic metal ions that influenced the antioxidant and antibacterial properties of Cur. Overall, this study proved that it was possible to use Cur in the form of Cur-Zn(II) complex as an antioxidant filler and Cur-Cu(II) complex as an antibacterial filler for active food packaging applications.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141729608","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}
{"title":"Sustainable innovations in food packaging: Antioxidant basil-enriched cassava starch films with UV protection and enhanced water and mechanical resistance","authors":"","doi":"10.1016/j.fpsl.2024.101324","DOIUrl":"10.1016/j.fpsl.2024.101324","url":null,"abstract":"<div><p>Degradation of food during transportation or storage poses a significant threat to its shelf life. Developing functional materials using sustainable components can serve as an environmentally friendly alternative to traditional food packaging, which contributes negatively to climate change. In this endeavor, carboxymethyl cassava starch-based films with various compositions of basil extract, available in aqueous (B) or freeze-dried (BS) forms, were obtained by extrusion. The inclusion of these extracts provided the starch film's antioxidant potential and contributed to increased tensile toughness. The highest concentration of BS yielded materials with outstanding UV protection capabilities and water resistance, showcasing remarkable improvements in hydrophobicity. The polyphenol release kinetic curves of the films with B at 15 % w/w and with BS, evaluated by the Weibull model, showed a Fick diffusion mechanism, underscoring the potential utility of these films as biodegradable and edible active packaging for lipophilic and acidic foods.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141636648","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}
{"title":"Halochromic properties of carotenoid-based films for smart food packaging","authors":"","doi":"10.1016/j.fpsl.2024.101325","DOIUrl":"10.1016/j.fpsl.2024.101325","url":null,"abstract":"<div><p>Carotenoids are fat-soluble natural pigments with potent antioxidant and antibacterial properties, and their colors are sensitive to environmental pH changes (halochromic properties). Currently, natural carotenoids are utilized in the preparation of active packaging films, drawing significant attention in the field of food engineering for their potential application in smart packaging films. The use of carotenoids-based active films has shown promise in prolonging shelf life, but their application as pH-sensitive pigments in smart packaging for monitoring food freshness remains less established due to the several drawbacks (i.e., visual changes and others) discussed in this work. This critical review primarily summarizes the most used smart packaging materials, the halochromic properties of carotenoids and other pigments, and the applications of carotenoids-based films/bioplastics as pH-sensitive smart packaging for monitoring food freshness. Finally, we present to the readers our expert overview of the advantages and disadvantages associated with these natural pigments in the packaging sector.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141630147","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}