Food Packaging and Shelf Life最新文献_第7页

Migration of organic and inorganic antimicrobials from antimicrobial-labeled food packaging and probabilistic risk assessment implications 有机和无机抗菌剂从抗菌剂标签食品包装的迁移和概率风险评估的影响

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-18 DOI: 10.1016/j.fpsl.2025.101652

Kyung Youn Lee , Hogeon Lee , Hee Seon Shin , Da Hee Ryu , Hyebin Yeo , Hae Min Ju , Dae Yong Jang , Ye Ji Koo , Seung Ha Lee , Kyung Min Lim , Dal Woong Choi

Antimicrobial-labeled food contact materials may pose potential health risks due to the migration of antimicrobial substances. Most previous studies examined fewer than ten samples, investigated only a limited number of antimicrobial agents, and rarely considered both organic and inorganic antimicrobials. This study assessed the migration and health risks of 47 organic and 3 inorganic antimicrobials from 171 polymer-based food contact materials. Tested materials included polyethylene (PE), polypropylene (PP), thermoplastic polyurethane (TPU), melamine-formaldehyde resin, polyethylene terephthalate (PET), and polylactide (PLA). Representative antimicrobial-labeled food packaging films were characterized using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), oxygen transmission rate (OTR), and water vapor transmission rate (WVTR). Among organic antimicrobials, zinc pyrithione was detected in three PE cutting boards and one PLA cutting board, with migration levels up to 1091 μg/L. Triclosan appeared only in one TPU cutting board under fatty food conditions, at 225 μg/L. Inorganic antimicrobials were detected more frequently, with migration of about 1 μg/L for silver, 43 μg/L for zinc, and 35 μg/L for copper under acidic conditions. Zinc pyrithione raised concern in the Tier 1 screening-level risk assessment due to its high migration level. However, a refined Tier 2 probabilistic risk assessment indicated no significant risk, even under upper-limit exposures. Triclosan and all three inorganic antimicrobials were determined to be safe. Overall, no significant health risks were identified from the tested food contact materials.

由于抗菌物质的迁移，带有抗菌标签的食品接触材料可能构成潜在的健康风险。大多数以前的研究检查了不到十个样本，只调查了有限数量的抗菌剂，很少考虑有机和无机抗菌剂。本研究评估了171种高分子食品接触材料中47种有机和3种无机抗菌剂的迁移和健康风险。测试的材料包括聚乙烯（PE）、聚丙烯（PP）、热塑性聚氨酯（TPU）、三聚氰胺甲醛树脂、聚对苯二甲酸乙二醇酯（PET）和聚乳酸（PLA）。采用傅里叶变换红外光谱（FTIR）、x射线衍射（XRD）、扫描电镜（SEM）、热重分析（TGA）、氧透过率（OTR）和水蒸气透过率（WVTR）对具有代表性的抗菌标签食品包装膜进行了表征。有机抗菌剂中，3块PE砧板和1块PLA砧板中检出吡啶硫锌，迁移量达1091 μg/L。在脂肪食物条件下，三氯生仅出现在一块TPU砧板中，含量为225 μg/L。在酸性条件下，无机抗菌剂对银、锌和铜的迁移量分别为1 μg/L、43 μg/L和35 μg/L。吡啶硫酮锌因其高迁移水平在一级筛查风险评估中引起关注。然而，经过改进的二级概率风险评估显示，即使在上限暴露下，也没有显著风险。三氯生和所有三种无机抗菌剂均被确定为安全的。总的来说，没有从测试的食品接触材料中发现重大的健康风险。

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引用次数: 0

Non-destructive detection of salmon freshness via multimodal deep fusion of intelligent packaging film imaging and chromatic features 基于智能包装膜成像与色彩特征多模态深度融合的鲑鱼新鲜度无损检测

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-16 DOI: 10.1016/j.fpsl.2025.101650

Haibo Xu , Jingru Chang , Mingyang Sun , Jialing Li , Haitao Wang , Yuanda Sun , Wentao Su , Xiaoyang He

Rapid spoilage of aquatic products necessitates efficient, non-destructive freshness detection methods. This study presents a flexible fluorescent optical sensor array fabricated by embedding a tannic acid–Fe²⁺ complex as pigment to monitor pH and chromatic changes associated with total volatile basic nitrogen (TVB-N) during salmon spoilage. Smartphone images of the sensor array were used to train a dual-modal deep learning model that integrates visual and chromatic features. We propose ICFreshNet, an EfficientNet-B0–based multimodal framework that couples a dual-channel feature extractor with an improved scalar-gated fusion and lightweight gated-fusion consistency to enhance feature robustness and synergy. In comparative experiments, ICFreshNet achieves millisecond-level inference latency on a local computing environment and attains a test accuracy of 99.0 %, outperforming ResNet50, CLIP, and fine-tuned large-model. The trained model exhibits excellent discrimination of chromatic cues and generalizes to different samples, demonstrating strong potential for intelligent packaging and real-time freshness monitoring in food safety applications.

水产品的快速变质需要高效、无损的新鲜度检测方法。本研究提出了一种柔性荧光光学传感器阵列，该阵列通过包埋单宁酸- fe 2 +复合物作为颜料制成，用于监测鲑鱼变质过程中pH和总挥发性碱态氮（TVB-N）的颜色变化。传感器阵列的智能手机图像用于训练集成视觉和色彩特征的双模态深度学习模型。我们提出了ICFreshNet，这是一个基于efficientnet - b的多模态框架，它将双通道特征提取器与改进的尺度门控融合和轻量级门控融合一致性相结合，以增强特征的鲁棒性和协同性。在对比实验中，ICFreshNet在本地计算环境下实现了毫秒级的推理延迟，测试准确率达到99.0 %，优于ResNet50、CLIP和微调大模型。训练后的模型对颜色线索具有良好的辨别能力，并可推广到不同的样品中，在食品安全应用中的智能包装和实时新鲜度监测方面显示出强大的潜力。

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引用次数: 0

Oxidized corn starch-soy protein isolate films reinforced by Schiff base-metal phenolic networks: Properties and application for blueberry preservation 希夫碱金属酚网络增强氧化玉米淀粉-大豆分离蛋白膜：性能及其在蓝莓保鲜中的应用

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-15 DOI: 10.1016/j.fpsl.2025.101651

Hao Cheng , David Julian McClements , Hao Xu , Hangxin Zhu , Ruojie Zhang , Zipei Zhang , Zhengyu Jin , Long Chen

Designing biodegradable packaging materials with high performance and multiple functions has become a key area of research in modern food packaging. In this work, the physicochemical characteristics of oxidized corn starch/soy protein isolate composite films were enhanced by combining Schiff base and TA-Fe MPNs crosslinking of the biopolymer network. Infrared spectroscopy confirmed that these double-cross-linked polymer networks were formed inside the composite films. Electron microscopy images suggested that double-crosslinking enhanced the density of the polymer network inside the films. The tensile strength of the cross-linked composite films increased by 72 %, the water vapor permeability decreased by 35 %, and the UV barrier rate reached 100 %. In addition, the double cross-linked network also improved their heat resistance, hydrophobicity, antioxidant activity, and antimicrobial activity. Moreover, these composite films demonstrated effective inhibition of blueberry spoilage throughout storage. In conclusion, this research provides a strategy for creating high-performance starch/protein-based active packaging materials for use in food and other industries.

设计高性能、多功能的可生物降解包装材料已成为现代食品包装研究的一个重点领域。通过希夫碱和TA-Fe mpn交联的方法，提高了氧化玉米淀粉/大豆分离蛋白复合膜的理化性能。红外光谱证实了这些双交联聚合物网络是在复合薄膜内部形成的。电镜图像显示，双交联增强了薄膜内部聚合物网络的密度。交联复合膜的抗拉强度提高72 %，水蒸气渗透性降低35 %，紫外线阻隔率达到100% %。此外，双交联网络还提高了它们的耐热性、疏水性、抗氧化活性和抗菌活性。此外，这些复合薄膜在整个储存过程中都能有效地抑制蓝莓的腐败。总之，这项研究提供了一个策略，创造高性能的淀粉/蛋白质为基础的活性包装材料，用于食品和其他行业。

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引用次数: 0

N, S, and P-doped carbon dots for intelligent paper sensors: Vapor-phase biogenic amine detection and freshness evaluation of foods 用于智能纸张传感器的N， S和p掺杂碳点：气相生物胺检测和食品新鲜度评价

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-14 DOI: 10.1016/j.fpsl.2025.101647

Thangarasu Sasikumar , Gye Hwa Shin , Jun Tae Kim

Nitrogen, sulfur, and phosphorus-doped carbon dots (NSP-CDs) exhibiting strong greenish-blue fluorescence were successfully synthesized via a simple hydrothermal method and integrated into Korean handmade paper-based sensors. The fluorescence sensing performance of the NSP-CDs was evaluated for the qualitative detection of biogenic amines (BAs), particularly spermine (SPM), and spermidine (SPD), which serve as key indicators of food spoilage. The NSP-CDs-based sensor demonstrated excellent selectivity and sensitivity toward SPM and SPD through a static quenching mechanism. The fluorescence probe exhibited a good linear detection range of 2.00–24.00 µM for SPM and SPD, with low limits of detection (LOD) of 6.73 nM for SPM and 6.57 nM for SPD. The practical applicability of this probe was validated using real food samples. The probe was effectively monitored real-time food spoilage in shrimp and fresh vegetable samples with clear visual fluorescence changes that closely correlated with microbial spoilage and storage conditions. In addition, the correlation between the visual and fluorescent responses of the NSP-CDs paper sensor and the total volatile basic nitrogen (TVB-N) content of fresh vegetable and shrimp samples was established using Conway microdiffusion analysis, confirming its reliability as a freshness indicator. This versatile, cost-effective, and easy-to-use NSP-CDs-based sensing platform holds significant promise for intelligent packaging and shelf-life indication in the fields of food safety and product authentication.

通过简单的水热法成功合成了具有强绿蓝色荧光的氮、硫、磷掺杂碳点（NSP-CDs），并将其集成到韩国手工纸基传感器中。评价了NSP-CDs的荧光传感性能，用于定性检测食品腐败的关键指标生物胺（BAs），特别是精胺（SPM）和亚精胺（SPD）。基于nsp - cds的传感器通过静态猝灭机制对SPM和SPD表现出优异的选择性和灵敏度。荧光探针对SPM和SPD的线性检测范围为2.00-24.00 µM，对SPM和SPD的下限检测限（LOD）分别为6.73 nM和6.57 nM。用实际食品样品验证了该探针的实用性。该探针能有效地实时监测虾类和新鲜蔬菜样品的食品腐败情况，其荧光变化与微生物腐败和储存条件密切相关。此外，通过Conway微扩散分析，建立了NSP-CDs纸传感器的视觉和荧光响应与新鲜蔬菜和虾类样品中总挥发性碱性氮（TVB-N）含量的相关性，验证了其作为新鲜度指标的可靠性。这种多功能，具有成本效益，易于使用的基于nsp - cd的传感平台在食品安全和产品认证领域的智能包装和保质期指示具有重要的前景。

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引用次数: 0

Design, preparation, characterization, and application of smart antibacterial films coated by ε-polylysine/2-pyridinecarboxaldehyde/Iron(Ⅱ) ε-聚赖氨酸/2-吡啶甲醛/铁包被智能抗菌膜的设计、制备、表征及应用（Ⅱ）

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-14 DOI: 10.1016/j.fpsl.2025.101648

Fangxuan Yi, Xiangyou Wang, Jie Huang, Kangqing Yuan, Yingjun Cui, Meng Cheng

An ε-polylysine/2-pyridinecarboxaldehyde/Iron(Ⅱ) coating (PBF) was developed and applied to polyvinyl alcohol (PVA) film to create an active packaging material with sustained-release antibacterial properties. The successful formation of the metallosupramolecular coating was confirmed through a series of physicochemical characterization. Incorporation of the PBF coating reduced the film’s light transmittance and significantly enhanced its inhibitory effects against E. coli, S. aureus, and P. tolaasii. Release kinetics revealed that the metallosupramolecular network effectively delayed the release rate of ε-polylysine (ε-PL), with greater cumulative release observed under acidic and alcoholic food simulation conditions. Additionally, the coating exhibited a colorimetric indicator function, enabling visual monitoring of ε-PL coating. The PVA-PBF film also demonstrated strong preservation effects on Agaricus bisporus, delaying browning and quality deterioration during storage. This multifunctional coating offers a promising approach for functional food packaging, integrating controlled antibacterial release with real-time visual monitoring.

研制了ε-聚赖氨酸/2-吡啶甲醛/铁（Ⅱ）涂层（PBF），并将其应用于聚乙烯醇（PVA）薄膜上，制备了具有缓释抗菌性能的活性包装材料。通过一系列的物理化学表征，证实了金属超分子涂层的成功形成。PBF涂层的掺入降低了膜的透光率，并显著增强了膜对大肠杆菌、金黄色葡萄球菌和托拉asii的抑制作用。释放动力学表明，金属超分子网络有效延缓了ε-聚赖氨酸（ε-PL）的释放速度，在酸性和酒精食物模拟条件下观察到更大的累积释放。此外，该涂层还具有显色指示功能，可以对ε-PL涂层进行可视化监测。PVA-PBF膜对双孢蘑菇也有较强的保鲜效果，能延缓贮藏过程中的褐变和品质劣化。这种多功能涂层为功能性食品包装提供了一种很有前途的方法，将控制抗菌释放与实时视觉监控相结合。

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引用次数: 0

Organic superhydrophobic coatings for slippery, sustainable packaging from lignin and natural waxes 有机超疏水涂料光滑，可持续包装木质素和天然蜡

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-14 DOI: 10.1016/j.fpsl.2025.101649

Pakjira Sirirutbunkajal, Charinee Winotapun, Pawarisa Wijaranakul, Wuttipong Rungseesantivanon, Kanjanawadee Singkronart, Bongkot Hararak

The development of sustainable, residue-free food packaging materials is critical to minimizing intensive plastic cleaning, food waste and enhancing consumer convenience. This research introduces an innovative organic superhydrophobic coating (OSC) for plastic packaging, crafted from natural materials, including beeswax, carnauba wax, and acetone-soluble softwood lignin. Using a spray coating technique, the OSC was applied to polyethylene terephthalate (PET) sheets, creating a slippery surface that prevents food residue. Optimization of the OSC formula—specifically, a combination of 0.30 g beeswax and 0.15 g lignin mixed via ultrasonic probe—produced a micro/nanostructured coating with a water contact angle (WCA) of 160.4 ± 1.1° and a sliding angle (SA) as low as 5°. This performance surpasses neat PET's WCA of 73.4 ± 2.2°, indicating a drastic improvement in hydrophobicity. Durability testing and cytotoxicity revealed that beeswax-lignin and carnauba wax-lignin OSC maintained superhydrophobic properties after multiple abrasion cycles, making it suitable for food packaging applications. The OSC-coated PET demonstrated impressive efficacy by leaving no residues in cups tested with milk, honey, and ketchup, underscoring its potential to reduce food waste and enhance sustainability in the packaging industry.

开发可持续的、无残留物的食品包装材料对于最大限度地减少密集的塑料清洁、食品浪费和提高消费者的便利性至关重要。本研究介绍了一种用于塑料包装的创新有机超疏水涂层（OSC），该涂层由天然材料制成，包括蜂蜡、巴西棕榈蜡和丙酮溶软木木质素。使用喷涂技术，OSC被应用于聚对苯二甲酸乙二醇酯（PET）片材上，形成光滑的表面，防止食物残留。优化OSC配方，将0.30 g蜂蜡和0.15 g木质素通过超声波探针混合，制备出水接触角（WCA）为160.4 ± 1.1°，滑动角（SA）低至5°的微纳米结构涂层。这一性能超过了纯PET的73.4 ± 2.2°的WCA，表明疏水性有了很大的提高。耐久性测试和细胞毒性测试表明，蜂蜡-木质素和巴西棕榈蜡-木质素OSC在多次磨损循环后仍保持超疏水性，适合用于食品包装。osc涂层PET在用牛奶、蜂蜜和番茄酱测试的杯子中没有留下任何残留物，显示出令人印象深刻的功效，强调了它在减少食物浪费和提高包装行业可持续性方面的潜力。

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引用次数: 0

Development and evaluation of starch-based composite active sheets for the preservation and packaging of blueberry (Vaccinium corymbosum) fresh fruits 蓝莓保鲜包装用淀粉基复合活性片的研制与评价

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-13 DOI: 10.1016/j.fpsl.2025.101645

Sofía Castellanos-González, Tatiana Jiménez-Ariza, Diego A. Castellanos

Blueberries are foods of high interest due to their nutritional and health benefits. However, they are susceptible to fungal spoilage during postharvest handling. In this work, a starch-based composite active sheet was developed for blueberry packaging. Different formulations, based on cassava starch, microcellulose, and β-cyclodextrin, along with additives, were evaluated to obtain sheets by extrusion using a temperature range of 120–135 °C. The sheets were characterized by measuring color, tensile strength, mid-infrared spectroscopy, and moisture adsorption. Subsequently, the adsorption capacity of two volatile antifungal substances, menthol and D-limonene, was determined on the sheets. It was observed that the formulation with 10 % microcellulose and 10 % β-cyclodextrin had the highest adsorbed amounts of menthol and D-limonene, 0.084 and 0.082 g substance g⁻¹ sheet, respectively. Finally, packaging tests with the sheets were performed with blueberries at 4 and 20 °C. Fresh samples were packaged in two types of PET trays (macro and microperforated) with different treatments of active sheets. During the storage, total soluble solids, titratable acidity, pH, firmness, color, and microbiological and sensory acceptability were evaluated. For the microperforated trays plus sheets loaded with 0.07 g menthol g⁻¹ sheet, 23 and 47 days of preservation were achieved at 20 and 4 °C, respectively, compared to 14 and 24 days for the control trays. For this treatment at 4 °C, firmness, color index (CI), and ripeness index (RI) values of 11.20 N, 1.28, and 13.18 were observed after 45 days. This packaging configuration can be suitable for improving the distribution of this product.

蓝莓因其营养和健康益处而备受关注。然而，在收获后的处理过程中，它们很容易受到真菌的破坏。研制了一种用于蓝莓包装的淀粉基复合活性片。以木薯淀粉、微纤维素和β-环糊精为基础的不同配方，以及添加剂，通过在120-135℃的温度范围内挤压得到薄片。通过测量颜色、拉伸强度、中红外光谱和吸湿性来表征薄片。随后，测定了两种挥发性抗真菌物质薄荷醇和d -柠檬烯在薄片上的吸附能力。结果表明，添加10 %微纤维素和10 % β-环糊精的配方对薄荷醇和d -柠檬烯的吸附量最高，分别为0.084和0.082 g物质g - 1片。最后，用蓝莓在4°C和20°C下对薄片进行包装试验。新鲜样品包装在两种类型的PET托盘（宏孔和微孔）与不同处理的活性片。在储存过程中，对可溶性固形物总量、可滴定酸度、pH值、硬度、颜色以及微生物和感官接受度进行了评估。对于微孔托盘和加载0.07 g薄荷醇g−1薄片的薄片，在20°C和4°C下分别保存了23天和47天，而对照托盘的保存时间分别为14天和24天。在4°C条件下处理45天后，硬度、颜色指数（CI）和成熟度指数（RI）值分别为11.20 N、1.28和13.18。这种包装配置可以适用于改善本产品的分布。

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引用次数: 0

Active packaging film with synergistic effect of UV-shielding and photodynamic sterilization for strawberry preservation 具有防紫外线和光动力杀菌协同作用的草莓保鲜活性包装膜

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-13 DOI: 10.1016/j.fpsl.2025.101641

Donghong Xie , Minghao Yang , Mingguang Zhu , Liyuan Zhang , Guohuan Huang , Yaohui You , Wen-jun Zhou

Active packaging has shown exceptional promise as a preservation technology. However, traditional active packaging has the defect of a single function, and little attention has been paid to ultraviolet (UV)-shielding and photodynamic synergistic bactericidal properties. In this study, a multifunctional active film of tannic acid-porous starch/carboxymethyl cellulose (TA-PS/CMC) was developed that integrates antioxidation, UV shielding, and visible-light-driven sterilization. Interestingly, TA-PS/CMC film selectively shielded the UV light in sunlight to avoid the acceleration of fruit decay, but also made full use of visible light to produce singlet oxygen and achieve synergistic antibacterial effects. Thus, TA-PS/CMC demonstrated exceptionally high bactericidal efficiency against both Escherichia coli and Staphylococcus aureus. Furthermore, TA-PS/CMC also exhibited superior water vapor barrier properties, remarkable mechanical strength, and potent antioxidant activity. Owing to these multifunctional properties, TA-PS/CMC could effectively prolong the shelf life of strawberry. Critically, the low-cost packaging material demonstrated superior biodegradability and environmental compatibility, eliminating concerns regarding food safety risks and ecological contamination.

活性包装作为一种保存技术已经显示出了非凡的前景。然而，传统活性包装存在功能单一的缺陷，对其紫外线屏蔽和光动力协同杀菌性能关注较少。本研究制备了一种集抗氧化、紫外线屏蔽和可见光杀菌于一体的单宁酸多孔淀粉/羧甲基纤维素多功能活性膜（TA-PS/CMC）。有趣的是，TA-PS/CMC膜选择性地屏蔽了阳光中的紫外线，避免了水果加速腐烂，同时也充分利用可见光产生单线态氧，达到协同抗菌的效果。因此，TA-PS/CMC对大肠杆菌和金黄色葡萄球菌均表现出异常高的杀菌效率。此外，TA-PS/CMC还具有优异的水蒸气阻隔性能、显著的机械强度和抗氧化活性。由于这些多功能特性，TA-PS/CMC可以有效地延长草莓的货架期。重要的是，这种低成本的包装材料表现出优越的生物降解性和环境相容性，消除了对食品安全风险和生态污染的担忧。

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引用次数: 0

Analysis of protective ability of pomelo peel against impact damage to apple for cushioning packaging design 柚皮对苹果冲击损伤防护能力分析及缓冲包装设计

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-13 DOI: 10.1016/j.fpsl.2025.101644

Jincheng Yu , Hongli Qiang , Wenzhi Tang , Fideline Tchuenbou-Magaia , Fauconnier Marie-Laure , Clément Burgeon , Minggang Wang , Yande Liu , Zhiguo Li

The design of high-performance cushioning structures plays a crucial role in preventing mechanical damage to apples during storage, handling and transportation. The impact test, microstructure observation and discrete element method were employed to assess the protective effect of pomelo peel on the damage resistance of apples. The results showed that the 'Red honey' pomelo peel was more suitable as a packaging material than the 'Shatian' pomelo peel due to its thinner structure and comparable strain resistance. The mesocarp of the 'Red Honey' pomelo exhibits a distinct reticular structure despite its reduced thickness. This architecture allows the peel to tolerate higher impact force (116.53 N) and elastic modulus (1.10 MPa), indicating that protective performance is governed by structural design rather than tissue bulk. Based on the cell structure and intercellular pore size characteristics of the pomelo mesocarp, a biological damage-resistant structure prediction model was developed. The results demonstrated that the predictive mathematical model exhibited a good fit (R²= 0.9003), with pomelo peel impact resistance prediction of 0.1766 ms. The factors influencing the damage resistance of the model's structural blocks followed the order: loading velocity (V) > porosity (P) > block size (S). Pomelo peel offers a structural model for protective produce packaging.

高性能缓冲结构的设计对于防止苹果在储存、搬运和运输过程中的机械损伤起着至关重要的作用。采用冲击试验、微观结构观察和离散元法评价柚皮对苹果抗损伤性的保护作用。结果表明，“红蜜”柚皮比“沙田”柚皮结构更薄，抗逆性相当，更适合作为包装材料。“红蜜”柚的中果皮尽管厚度减少，但具有明显的网状结构。这种结构允许剥离承受更高的冲击力（116.53 N）和弹性模量（1.10 MPa），表明保护性能由结构设计而不是组织体积决定。基于柚中果皮的细胞结构和细胞间孔径特征，建立了柚中果皮抗生物损伤结构预测模型。结果表明，预测数学模型拟合良好（R²= 0.9003），柚皮抗冲击性预测值为0.1766 ms。影响模型结构块体抗损伤能力的因素依次为：加载速度(V) >； 孔隙率(P) >； 块体尺寸(S)。柚皮为保护性产品包装提供了一种结构模型。

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引用次数: 0

Biobased phase change material packaging for dark chocolate: Enhanced thermal management against temperature fluctuations 黑巧克力用生物基相变材料包装：增强热管理以对抗温度波动

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life

Pub Date : 2025-10-13 DOI: 10.1016/j.fpsl.2025.101632

Qianzhu Zhao , Siew-Yee Wong , Yu Zhang , Poh-Chong Lim , Vinod Kumar Sivaraja , Andrew Chun-Yong Ngo , Weibiao Zhou , Xu Li

This study provides a sustainable solution to preserve dark chocolate under thermal stress by developing a biobased phase change material (PCM) packaging as secondary packaging. The PCM film is prepared by incorporating capric-stearic acid eutectic (CSE) microcapsules, encapsulated with lignin-zein shell and coated with graphene oxide (GO) nanosheets, into polyvinyl alcohol (PVA) matrix. The resulting PCM packaging exhibits a melting temperature of 28.8 °C and an enthalpy change of 41.7 J g⁻¹. It enables effective thermal buffering by slowing down heat transfer through packaging and shortening chocolate exposure to elevated temperatures. Performance is validated under short-term (S1: cycling at 20/32 °C over 20 h) and moderate long-term storage (L2: cycling at 22/27 °C over 60 days; L3: isothermal at 24.5 °C over 60 days). In these scenarios, the PCM packaging effectively mitigates chocolate fat bloom and hardening by delaying polymorphic transition (Form V to VI). Under harsher conditions (L1: 22/27/32 °C cycling), its protective effect is limited but still evident during the first 5 days. Overall, the developed PCM packaging with good stability and enhanced biodegradability demonstrates its potential in efficient thermal management against temperature fluctuations in the storage of heat-sensitive foods.

本研究通过开发一种生物基相变材料（PCM）包装作为二次包装，为在热应力下保存黑巧克力提供了一种可持续的解决方案。PCM薄膜是通过将硬脂酸共晶（CSE）微胶囊（木质素-玉米素外壳包裹，氧化石墨烯（GO）纳米片包裹）加入聚乙烯醇（PVA）基质中制备的。所得的PCM封装的熔化温度为28.8℃，焓变为41.7 J g−1。它使有效的热缓冲，减缓热传递通过包装和缩短巧克力暴露在高温下。性能在短期（S1：在20/32°C下循环超过20 h）和中等长期储存（L2：在22/27°C下循环超过60天；L3：在24.5°C下等温超过60天）下进行验证。在这些情况下，PCM包装通过延迟多态转变（形式V到VI）有效地减轻巧克力脂肪开花和硬化。在更恶劣的条件下（L1: 22/27/32°C循环），其保护作用有限，但在前5天仍然明显。总体而言，所开发的PCM包装具有良好的稳定性和增强的生物降解性，表明其在热敏性食品储存过程中有效热管理温度波动方面的潜力。

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引用次数: 0