食品包装材料对食品安全的影响研究

随着人们生活水平的提高,对食品的要求也越来越高。食品安全是当前人们关注的首要问题。近年来,食品安全事件频频发生,其中不乏因食品包装材料引起。食品包装材料直接影响食品安全以及人体健康。本文首先介绍了我国食品包装材料的现状,随后分析了包装材料对食品安全的影响,以期提升食品的安全性。     

塑料食品包装材料化学物迁移的分析方法发展动态

由食品安全和质量问题引出了食品包装材料化学物的迁移对食品的污染;总结了各种食品包装材料中化学物的迁移以及迁移水平的分析测试方法;并举例说明了各种方法的在实际中的应用。同时也介绍了研究食品包装材料化学物迁移方法的意义。     

食品包装用塑料中酚类抗氧化剂检测研究进展

酚类抗氧化剂因其较高效的抗氧化能力、较廉价等特点而广泛用于食品包装材料中,然而在食品销售储运的过程中,包装材料中的抗氧化剂可能会渗透和迁移到食品中,从而对人体健康构成一定的威胁。本文对食品包装材料中酚类抗氧化剂的检测方法进展进行综述,为相关食品包装材料中抗氧化剂检测提供参考。     

食品包装材料法规现状及其对食品安全产生危害的控制措施建议

随着食品包装材料越来越广泛的生产与应用，其所带来食品的质量安全问题日益突出。而当下人们对食品安全问题更加关注，包装作为食品加工的最后一道“防线”，越来越受到人们的关注。食品包装的主要功能是保护食品，使之便于携带、运输和保存，它与人们的生命健康息息相关。因此，为防止食品污染、变质，不仅要求食品包装美观、实用，更重要的是要提高质量安全水平，以确保食品质量安全，这无疑对食品包装材料提出了更高的要求。     

国际市场传真

正杜邦推出最新的食品包装材料杜邦近日推出了最新的食品包装材料。新产品系列能够使包装膜更薄更坚韧,同时还能有效降低包装破损问题,保证食品长效新鲜。这些产品包括应用于真空贴体包装的沙林、易拉盖和拜牢等材料。这些材料可将新鲜食品的保质期延长至30 d,     

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。     

我国纸质食品接触材料质量安全状况及风险评估

本文介绍了我国纸质食品接触材料安全状况,对其存在的质量安全问题进行了风险评估。同时介绍了欧美发达国家开展食品包装材料暴露评估时采用方法,以期为食品包装材料风险评估机构、监管部门以及相关行业、企业开展相关研究工作提供参考。     

天下塑业

政策法规欧洲:《食品包装塑料制品生产指南》[本刊综合消息]2004年12月22日,欧洲食品安全局(EFSA)向食品包装厂家下发了《食品塑料包装制品生产指南》,以确保包装食品的安全和卫生。该《指南》经欧盟1935/2004条款通过后正式实施。条款中规定了食品接触材料的生产许可以及相关的法律责任。同时,强调了包装材料标准,即对食品保鲜期的要求。《指南》列出了相关食品包装条款,并提供了示范     

一种进口食品包装薄膜的红外光谱法鉴定

<正>进口日本食品包装薄膜系一种复合高分子材料。它无色透明,强度高,耐气候性好。特别适宜包装液体食品,长期贮存能保持食品鲜美。为了给研制适合我国食品包装特点的复合薄膜提供参考依据,我们用红外光谱法对该进口食品包装薄膜作了系统鉴定。     

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。     

Silver‐nanoparticle‐loaded chitosan lactate films with fair antibacterial properties

Food quality and safety are major concerns in the food industry. Antimicrobial packaging can be considered an emerging technology that could have a significant impact on life and food safety. Antimicrobial agents in food packaging can control the microbial population and target specific microorganisms to provide greater safety and higher quality products. In this work, a lactic acid grafted chitosan film was synthesized. Silver nanoparticles were loaded into the chitosan lactate (CL) film by equilibration in a silver nitrate solution, which was followed by citrate reduction. The presence of silver nanoparticles was confirmed with transmission electron microscopy, X‐ray diffraction, Fourier transform infrared spectroscopy, and thermogravimetric analysis of the film. The silver‐nanoparticle‐loaded CL film was investigated for its antimicrobial properties against Escherichia coli. This newly developed material showed strong antibacterial properties and thus has potential for use as an antibacterial food‐packaging material. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

Surface properties,thermal, and mechanical characteristics of poly(vinyl alcohol)–starch‐bacterial cellulose composite films

Nanocomposite films for food packaging applications were developed using bacterial cellulose (BC) nanofibers in different amount in a poly(vinyl alcohol)/starch (PVA/St) matrix. In search of a better method to reduce the harmful ingredients in food packaging, the cellulose nanofibers were obtained by the mechanical defibrillation of BC pellicles thus avoiding the addition of chemicals in the final packaging material. Improved mechanical performances were obtained starting from just 1% BC nanofibers in PVA/St. Atomic force microscopy images showed a uniform dispersion of BC nanofibers on the surface of nanocomposites. A twofold increase of both tensile strength and modulus was obtained for 2 wt % BC in the composite. BC nanofibers have greatly improved the barrier properties of PVA/St matrix, a twofold increase of water vapor permeability being obtained for only 2 wt % BC nanofibers in the composite film. PVA/St/2BC was proposed as a high potential material for food packaging applications. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 45800.     

食品用塑料软包材的检测重点

以材料安全以及包装安全为基础,详细介绍了当前使用的食品用软包装材料的物理性能和理化性能检测的必要性以及具体的检测项目。     

塑料薄膜对食品安全的影响及控制措施

阐述了我国塑料食品包装薄膜的发展现状及对食品安全的影响的潜在因素。重点分析了目前我国现有的塑料食品包装薄膜的相关检测标准、检测方法及限量要求,并阐述了塑料食品包装薄膜中各类添加剂对食品卫生性能的影响,最后指出塑料食品包装薄膜对食品安全影响的控制措施。通过总结归纳目前我国塑料食品包装薄膜的发展趋势,为进一步规范塑料食品包装薄膜市场,保障食品安全提供指导。     

为食品包装增色添彩的K-树脂

薄膜是食品包装的主要物料。菲利浦公司生产的 k-树脂 (苯乙烯 -丁二烯共聚物 )是一种透明族树脂 ,具有很好的抗冲击、抗拉强度和光学性 ,适宜制造薄膜。这种材料的出现 ,拓宽了食品包装市场。现时有不少食品及糖果制造商都采用由 k-树脂制成的薄膜。本文介绍这种薄膜性能和应用     

Aseptisches Verpacken von Lebensmitteln – Grundlagen und Stand der Technik

Aseptic packaging of foods – fundamentals and state of the art . During the last two decades, a highly successful development has taken place in this area and aseptic packaging is today considered a normal component of technology in many areas of food industry. Aseptic packaging of food can be divided into two main areas of application: 1. Packaging of presterilized and sterile products. 2. Packaging of unsterilized products to avoid the external contamination. In most case, destruction of the microorganisms and spores attached to the surface by a lethal factor obeys the general logarithmic time law. For aseptic packaging of a given product, it is necessary to coordinate 4 factors, viz. the packaging material, the sterilization process for the packaging material surface, the packaging machine itself, and the operating environment of the machine: among these factors, the sterilization process is of greatest importance.     

纸塑复合包装材料中化学物迁移的改进预测模型及其通用性

以真实纸塑包装-化学物-食品体系为依据,基于一维Fick扩散理论,考虑化学物在纸和塑料涂层内具有不同的扩散系数及纸的厚度为有限厚,引入纸和塑料涂层界面处的分配系数,给出初始条件和边界条件,建立迁移预测模型,得到解析解。同时,对模型进行简化处理,分析其用于双层同种塑料-化学物-食品体系的使用通用性,并与Laoubi-Vergnaud模型进行对比分析,结果发现所建模型不仅可用于纸塑复合包装材料中化学物的迁移预测,同时还可用于双层同种塑料包装材料中化学物的迁移预测。     

UV polymerization‐based surface modification technique for the production of bioactive packaging

The term bio‐active packaging refers to a packaging material that has been modified by the attachment or immobilization of bioactive components on the food contact surface. This article describes a novel, economical, and feasible technique for embedding bioactive components in energy curable food contact resins. While the technique is versatile and potentially applicable to any antimicrobial or bioactive compound; the proof of concept discussed in this article has focused on enzyme immobilization. Glucose oxidase (GOx) and catalase were used as representative enzymes. These oxidoreductases are very sensitive to inactivation by extrinsic factors and therefore present a challenging model for immobilization. Embedding of activity occurred via UV polymerization of commercial polymer coatings. The efficiency of immobilization and the performance of bioactive packaging were tested in both food simulants and actual food products. In both cases immobilization resulted in food contact surfaces with high retained enzyme activity as demonstrated by oxygen removal. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

Electrochemical characterisation of protective organic coatings for food packaging

A very common material for food packaging is steel, in the form of metallic containers (cans), in particular for beverage packaging. The corrosion degradation of the packaging must be carefully controlled, not only because the packaging integrity must be preserved, but also in order to avoid any significant contamination of the food or drink, compromising the flavour. In order to increase the coating performance and the food compatibility, new organic coatings are under development with very high protective properties, with the final aim to increase the shelf life of the product. An electrochemical characterisation is often used to study the protective performance of organic coatings on metal substrate for various applications. Some different coatings for food packaging were considered in the present study, including materials with different chemical composition and different pigments content. The protective properties were quantified using electrochemical impedance spectroscopy (EIS) measurements, comparing the electrochemical substrate activity with electrochemical noise (EN) and scanning Kelvin probe (SKP) measurements. The influence of mechanical deformations on the protective properties was also investigated. The results obtained on the studied coatings confirmed the validity of the electrochemical approach and showed that, in general, the coatings containing pigments (TiO₂) have better performance than clearcoats, while comparing the different polymers, epoxy–phenolic coatings have a better corrosion protection than epoxy–melamine coatings.