Check on Food Packaging Materials

<正> Seven government agencies led by the Ministry of Health of China carried out a jointaction at the end of November 2009 to check food packaging materials to ensurefood safety and the healthy development of the sector.This is part of effort to implement the Food Safety Law which regulates theoperations and use of food packaging materials like additives,monomers,resins and     

食品包装薄膜的研究进展

主要说明了食品包装薄膜的种类,及各种薄膜的应用特点和功能,指出了食品包装薄膜的发展趋势。     

Design of Alginate-Based Bionanocomposites with Electrical Conductivity for Active Food Packaging

Bionanocomposite materials have been designed as a promising route to enhance biopolymer properties, especially for food packaging application. The present study reports the preparation of bionanocomposite films of alginate with different loadings of pure reduced graphene oxide (rGO) or of mixed zinc oxide-rGO (ZnO-rGO) fillers by solvent casting. Sepiolite is used to make compatible rGO with the hydrophilic matrix. The addition of fillers to alginate matrix maintains the low water solubility promoted by the calcium chloride treatment, and, additionally, they demonstrate a weaker mechanical properties, and a slight increase in water vapor permeability and wettability. Due to the properties of ZnO-rGO, the alginate bionanocomposites show an increase of electrical conductivity with the increase of filler content. While the highest electrical conductivity (0.1 S/m) is achieved by the in-plane measurement, it is in the through-plane measurement the remarkable enhancement of almost 30 times greater than the alginate film. With 50% of ZnO-rGO filler, the bionanocomposites present the highest antioxidant and antibacterial activities. The combination of electrical conductivity with bioactive properties makes these films promising not only to extend food shelf-life but also to allow packaged food sterilization at low temperature.     

食品包装材料--塑料薄膜的发展

简述了近几年食品包装材料—塑料薄膜的发展,通过分析各种食品的特性,选择最能满足该食品要求的包装材料,介绍了几种具有特殊功能的食品包装材料,指出今后我国塑料包装材料的发展方向。     

CAI在《食品包装学》上的应用

深入论述了食品包装学课程教学内容的特点。结合食品包装教学的实践,对CAI在食品包装学教学中的作用及应用中要注意的问题进行了阐述。以期使CAI课件与食品包装学教学能有机的结合,提高食品包装学的教学效果和教学质量。     

国际食品包装材料法删会在京举行塑料包装材料安全性管理更加科学

民以食为先,食品安全在全世界都是关系民生的重要话题,而食品包装材料（亦称”食品接触材料”）的安全标准（卫生标准）要求,也在世界各个国家中受到广泛关注和严格监管。建立健全和不断完善科学的食品接触材料的法规体系,是关系到整个食品产业链（食品生产、包装行业、原材料企业）可持续发展的关键之一。2012年,正是中国食品包装材料清理工作取得突出成绩的一年,也是GB9685修订将要全面启动的一年。此外,食品添加剂、食品相关产品新产品申报等制度,也都取得了重大成果。国际化学品制造商协会希望藉此机会,携手中、美、欧各国专家,共同分享经验,展望法规未来的发展方向。     

Structural Applications for Flexible Packaging: Innovations in Pouch Forms and Uses

Three facets of flexible packaging are discussed in this article: the basic forms of flexible packages, the applications in food packaging for each form, and structural combinations for different applications. The variety of packaging capabilities available to those who choose flexible packaging to fill product and consumer needs is illustrated. The basic forms of flexible packaging are first reviewed, and then some newer, innovative pouches and their application to the food industry are discussed.     

食品包装高分子材料技术进步与升级

分析了常用的包装高分子材料性能及优缺点,结合新型的加工方法和材料领域最新进展,分别讨论了双向拉伸聚乙烯、流延聚乙烯、聚丙烯薄膜、LISIM法双向拉伸聚酰胺薄膜和聚酯薄膜等包装材料;综述了多层复合包装材料的研究现状,对未来食品包装技术的发展趋势进行了展望,认为包装材料将向高阻隔、低重量和绿色化方向发展,而采用复合技术和先...     

茂金属聚乙烯薄膜在食品包装的应用

介绍了食品包装薄膜的使用要求及茂金属聚乙烯薄膜的生产工艺。茂金属聚乙烯薄膜用作食品包装试验证明:茂金属聚乙烯薄膜综合性能优异,广泛适应食品包装及其他领域的包装,是一种理想的包装材料。     

聚酰胺食用包装材料熔体着色的研究

聚合物食用包装材料熔体着色，必须考虑着色剂的耐热性，耐迁移性，分散性，化学稳定性和毒理学食用安全性。本文采用铝基质食用颜料与聚酰胺熔体着色上进行了探讨性地实验。     

淀粉基食品包装膜材料的研究进展

本文就近些年来淀粉基食品包装膜的研究发展进行了综述。范围涵盖了淀粉的选择,塑化剂及其他添加剂的种类,不同的淀粉改性方法对膜性能的影响。其中直链含量高的淀粉所制备的膜具有较高的强度和较好的阻隔性能;甘油是应用最为广泛的塑化剂;不同的添加剂可以针对膜的不同性能加以改善;针对淀粉本身的缺陷进行改性可以提高其膜性能。     

食品用塑料包装材料的安全性研究

针对常用的塑料包装材料及特性、食品用塑料包装材料主要安全问题、有关塑料包装材料检测标准和方法,分析塑料包装材料对食品安全的影响。     

浅谈塑料复合食品包装材料中的溶剂残留

文中探讨了欧盟、美国和我国关于塑料复合食品包装材料中溶剂残留的卫生标准和检测方法,分析了溶剂残留的影响因素,最后提出了降低溶剂残留的对策。     

Biobased Polyester-Amide/Cellulose Nanocrystal Nanocomposites for Food Packaging

The worldwide plastic waste production is steadily increasing, since the use of polymeric materials continues to rise. One area of particular high plastic consumption is food packaging. Flexible and rigid packaging films are typically made from petrochemical-sourced polymers, which are utilized because of their low cost, ductility, melt-processability, and gas barrier properties, but a major downside is their inability to biodegrade in a reasonable time. Packaging-relevant properties of nanocomposites based on polyester-amides (PEAs) are reported, which are chosen on account of their tunable crystallinity, biobased starting materials, and biodegradability. These polymers are synthesized via melt polycondensation of a building block made from caprolactone and 1,4-diaminobutane, with the addition of 1,4-butanediol and dimethyl adipate. The fraction of the amide segment is varied between 25 and 75 mol%. The oxygen transmission rate (O₂TR) drops upon increasing the amide content from 1.6 × 10⁵ to 2.9 × 10⁻⁴ cm³ m⁻² d⁻¹ on account of increasing crystallinity. In order to improve the gas barrier properties further, nanocomposites of the PEAs and 1–10 wt% cellulose nanocrystals (CNCs) are prepared. These nanocomposites have indeed lower O₂TR values than the neat PEAs, with reductions of as much as 50% for a CNC content of 10 wt%.     

Design of Polymeric Films for Antioxidant Active Food Packaging

Antioxidant active food packaging can extend the shelf life of foods by retarding the rate of oxidation reactions of food components. Although significant advances in the design and development of polymeric packaging films loaded with antioxidants have been achieved over the last several decades, few of these films have successfully been translated from the laboratory to commercial applications. This article presents a snapshot of the latest advances in the design and applications of polymeric films for antioxidant active food packaging. It is hoped that this article will offer insights into the optimisation of the performance of polymeric films for food packaging purposes and will facilitate the translation of those polymeric films from the laboratory to commercial applications in the food industry.     

食品包装材料迁移过程的研究

本论文在迁移理论和迁移模型基础上,利用现代分析测定仪器和实验模拟手段,在现有实验条件下,真实模拟食品包装材料中的迁移过程;理论和实践相结合,从定性和定量两方面分析聚合物PS材料中苯乙烯提取物的迁移情况及影响迁移的因素。对由迁移而引发的食品安全问题的解决具有重大的实践意义。     

食品活性包装用抗菌材料技术进展

综述了食品活性包装用抗菌材料技术的研究进展及发展趋势,介绍了符合食品添加剂规范要求的抗菌剂、塑料包装材料的抗菌功能化技术,并指出在开发抗菌材料时应考量加工过程、食品种类、储存环境及法规要求等因素。