食品智能包装新鲜度指示剂研究进展

作为智能包装不可缺少的一部分——新鲜度指示剂,通过指示敏感材料,与食品腐败过程中产生的特定产物发生反应,并将反应结果转换成易于消费者直接观察和判断的信号,如：颜色信号、电信号、荧光信号等,为消费者提供实时质量监控信息,本文综述了食品智能包装新鲜度指示剂的分类,包括CO₂敏感型指示剂、TVB-N敏感型指示剂、pH敏感型指示剂及其成型工艺,涵盖了食品智能包装新鲜度指示剂的应用,旨在为食品智能包装新鲜度指示剂的发展提供参考,为食品损失和污染等传统包装问题提供了潜在的解决方案,其后续发展应朝着方便、快捷、实时显示食品质量变化的方向,以减少因食品质量差和安全问题带来的健康问题,研发新型的新鲜度指示剂,有利于将智能包装技术推广至更多的包装应用中,为产品质量提供理论指导与技术支撑。     

智能包装技术在食品供应链中的应用研究进展

食物浪费问题是全世界亟待解决的难题,智能包装能实现产品的实时跟踪,为食品包装决策提供信息支持,从而降低食品的损耗。本文综述了智能包装的概念、国内外智能包装技术（时间-温度指示剂、泄漏指示剂、新鲜度监测技术、成熟度监测技术、条码技术、射频识别技术、增强现实技术）在食品领域中的研究进展和智能包装技术现存的问题。提出了智能包装技术低成本化、多功能化以及安全化的发展方向,以期推广智能包装技术的应用,减少食物浪费。     

用于食品质量监测的pH智能指示剂的研究进展

近年来,消费者对于食品安全要求的改变促进了包装新技术的发展。目前用于食品质量监测的智能包装技术主要有指示剂、数据载体装置以及传感器等。其中,pH智能指示剂由于其成本低、体积小、制备方便和指示效果好等优点而成为研究热点。通常来说,指示剂是由负载基和pH染料组成。同时天然pH染料如茜素、姜黄素、类胡罗卜素、花青素等对于环境酸碱性的改变能表现出明显的颜色变化。以天然pH染料制备的pH智能指示剂能够传递食品的实时信号（颜色、化学或电子）,以表现实时的质量信息。本文主要对以天然染料和生物聚合物为基础的pH智能指示剂的研究现状进行了概述,讨论了基于天然pH染料和合成pH染料相比的pH智能指示剂的重要性,以及未来的研究趋势。     

Past, current and potential utilisation of active and intelligent packaging systems for meat and muscle-based products: A review

Interest in the use of active and intelligent packaging systems for meat and meat products has increased in recent years. Active packaging refers to the incorporation of additives into packaging systems with the aim of maintaining or extending meat product quality and shelf-life. Active packaging systems discussed include oxygen scavengers, carbon dioxide scavengers and emitters, moisture control agents and anti-microbial packaging technologies. Intelligent packaging systems are those that monitor the condition of packaged foods to give information regarding the quality of the packaged food during transport and storage. The potential of sensor technologies, indicators (including integrity, freshness and time-temperature (TTI) indicators) and radio frequency identification (RFID) are evaluated for potential use in meat and meat products. Recognition of the benefits of active and intelligent packaging technologies by the food industry, development of economically viable packaging systems and increased consumer acceptance is necessary for commercial realisation of these packaging technologies.     

新鲜度指示型智能包装的研究进展

食品新鲜度指示型智能包装是利用食品在贮藏过程中释放的某些特征气体与特定试剂产生的特征颜色反应、温度激活生物学反应及酶作用等引起指示剂发生明显的变化,从而帮助消费者直观、准确以及科学的判断食品品质与新鲜程度。因此,食品新鲜度指示剂在实际生活中具有重要的应用价值。本文在归纳和分析国内外新鲜度指示型智能包装的基础上,分别从食品新鲜度指示剂应用类型与新鲜度指示剂基材两个方面阐述了新鲜度指示剂的指示原理与研究现状以及指示剂基材的制作工艺与材料选择,对现有研究成果进行总结,指出了研究中依然存在的问题并对未来的研究方向进行展望以及提出合理性研究建议,旨在为今后更深入的食品新鲜度指示剂技术研究提供借鉴和参考。     

负载天然色素的生物基智能包装指示器研究进展

智能包装指示器能够基于其检测、感知和记录产品环境变化的能力为消费者提供被包装食品新鲜度、安全性或食品环境条件(温度、pH值、气体氛围)等的有效信息,是传统包装传播信息能力的延伸,并且有助于改善危害分析与关键控制点(HACCP)和质量分析与关键控制点(QACCP)系统,有助于现场检测不安全食品,识别潜在的健康危害,并制定策略以减少或消除食品安全问题发生。生物基智能包装系统因采用可降解、可再生材料向消费者直观显示包装食品在供应链中的品质相关信息,契合循环经济和可持续发展的需求而备受关注。介绍了以天然色素(花青素、叶绿素、姜黄素和甜菜素等)为敏感元件,以生物基聚合物(多糖、蛋白质、脂质和改性纤维素等)为载体的环境友好型智能包装指示器(pH值感应、时间-温度感应、气体感应等)的类型、功能适应性及其在监控食品品质、储运环境等方面的新趋势、新进展。     

Applications of natural polysaccharide-based pH-sensitive films in food packaging: Current research and future trends

With the increased awareness of food safety and growing environmental concern of plastic packaging disposal, the research and development of novel food packaging is extremely urgent and attracts much attention. Natural polysaccharides are ideal candidate materials to develop “green” food packaging due to their biodegradable properties and good film-forming properties. Especially, the natural polysaccharides-based intelligent films can provide consumers the real-time information about the quality and safety of the packaged food through the pH-sensitive indicators. Consequently, this paper summarized the current researches on the development of natural polysaccharides-based pH-sensitive films. Then, the applications of natural polysaccharides-based pH-sensitive films in food packaging, including the packaging for meat products, fruits and vegetables, etc., are emphasized. Finally, an overview of the trends/challenges of pH-sensitive films in food packaging is discussed. Taken together, the natural polysaccharide-based pH-sensitive food packaging films show more advantages as compared with the common food package films, which can not only protect the packaged food, but also monitor the quality of packaged food in real time. Nevertheless, the further studies should continue to focus on the commercially sustainable key points including consumer acceptance and trust, cost, regulatory considerations and multifunctional performance of the pH-sensitive food packaging films.     

Current topics in active and intelligent food packaging for preservation of fresh foods

The purpose of this review is to provide an overview of current packaging systems, e.g. active packaging and intelligent packaging, for various foods. Active packaging, such as modified atmosphere packaging (MAP), extends the shelf life of fresh produce, provides a high‐quality product, reduces economic losses, including those caused by delay of ripening, and improves appearance. However, in active packaging, several variables must be considered, such as temperature control and different gas formulations with different product types and microorganisms. Active packaging refers to the incorporation of additive agents into packaging materials with the purpose of maintaining or extending food product quality and shelf life. Intelligent packaging is emerging as a potential advantage in food processing and is an especially useful tool for tracking product information and monitoring product conditions. Moreover, intelligent packaging facilitates data access and information exchange by altering conditions inside or outside the packaging and product. In spite of these advantages, few of these packaging systems are commercialized because of high cost, strict safety and hygiene regulations or limited consumer acceptance. Therefore more research is needed to develop cheaper, more easily applicable and effective packaging systems for various foods. © 2015 Society of Chemical Industry     

Monitoring the Quality of Perishable Foods: Opportunities for Intelligent Packaging

This review paper discusses opportunities for intelligent packaging for monitoring directly or indirectly quality attributes of perishable packaged foods. The possible roles of intelligent packaging as a tool in supply chain management are discussed as well as the barriers to implement this kind of technology in commercial applications. Cases on pasteurized milk and fresh cod fillets illustrate the application of different intelligent packaging concepts to monitor and estimate quality attributes. Conditions influencing quality (e.g., temperature–time) can be monitored to predict the quality of perishable products when the initial quality is known and rather constant (e.g., pasteurized milk). Products with a highly variable initial quality (e.g., fresh fish) require sensors monitoring compounds correlated with quality.     

二维雪花码墨水喷码机

食品生产商除要不断改善食物的味道,使之味美可口外,还要注意食品的标码,故此,1台经济高效、性能良好的编码机是不可或缺的。不同的包装材料,必须配合不同的编码技术,才能编印出清晰易读的编码,充分发挥编码机的特性。而当要追溯问题产品的批次,回收问题产品时,食品批发商也能及时作出回应。为此,编者组织这个编码技术专辑,以馈企业和读者。 ——编者     

pH值敏感型食品新鲜度指示标签及其应用的研究进展

近年来,智能包装的研究受到巨大关注,pH值指示标签是新鲜度指示器中的一种,可以简单、高效、实时、直观地通过标签颜色变化反映食品的新鲜度,在食品供应链中有巨大的发展潜力。为了改善pH值指示标签的效果,研究者们开发了多种类型的pH值敏感色素和基体材料,以强化指示标签的显色强度,优化阻隔性、机械强度、稳定性及生物活性。本文从pH值敏感色素来源和基膜类型两方面分析pH值新鲜度指示膜的研究进展,并对当前研究面对的困难、挑战与未来研究趋势进行讨论,以期为pH值敏感型指示标签的研究和应用提供参考。     

Active and intelligent packaging: The indication of quality and safety

The food industry has been under growing pressure to feed an exponentially increasing world population and challenged to meet rigorous food safety law and regulation. The plethora of media consumption has provoked consumer demand for safe, sustainable, organic, and wholesome products with “clean” labels. The application of active and intelligent packaging has been commercially adopted by food and pharmaceutical industries as a solution for the future for extending shelf life and simplifying production processes; facilitating complex distribution logistics; reducing, if not eliminating the need for preservatives in food formulations; enabling restricted food packaging applications; providing convenience, improving quality, variety and marketing features; as well as providing essential information to ensure consumer safety. This chapter reviews innovations of active and intelligent packaging which advance packaging technology through both scavenging and releasing systems for shelf life extension, and through diagnostic and identification systems for communicating quality, tracking and brand protection.     

Recent Advances in Dairy Packaging

The type of packaging material for dairy products is of critical importance because of its impact on quality, safety, cost, and marketing of the commodities to consumers. Recently, interest has shifted towards novel applications such as smart or intelligent packaging, modified atmosphere and active packaging, and sustainability. This article reviews recent applications and trends in the packaging of dairy products such as evaporated, sweetened condensed, and powdered milks, ice cream, butter, acidified dairy products, and cheeses.     

Food Packaging: A Comprehensive Review and Future Trends

Innovations in food packaging systems will help meet the evolving needs of the market, such as consumer preference for “healthy” and high‐quality food products and reduction of the negative environmental impacts of food packaging. Emerging concepts of active and intelligent packaging technologies provide numerous innovative solutions for prolonging shelf‐life and improving the quality and safety of food products. There are also new approaches to improving the passive characteristics of food packaging, such as mechanical strength, barrier performance, and thermal stability. The development of sustainable or green packaging has the potential to reduce the environmental impacts of food packaging through the use of edible or biodegradable materials, plant extracts, and nanomaterials. Active, intelligent, and green packaging technologies can work synergistically to yield a multipurpose food‐packaging system with no negative interactions between components, and this aim can be seen as the ultimate future goal for food packaging technology. This article reviews the principles of food packaging and recent developments in different types of food packaging technologies. Global patents and future research trends are also discussed.     

Active and Intelligent Packaging for the Food Industry

In the recent past, food packaging was used to enable marketing of products and to provide passive protection against environmental contaminations or influences that affect the shelf life of the products. However, unlike traditional packaging, which must be totally inert, active packaging is designed to interact with the contents and/or the surrounding environment. Active packaging systems are successfully used to increase the shelf life of processed foods and can be categorized into adsorbing and releasing systems (for example, oxygen scavengers, ethylene scavengers, liquid and moisture absorbers, flavor and odor absorbers or releasers, antimicrobials, etc.). Intelligent packaging is characterized by its ability to monitor the condition of packaged food or the environment by providing information about different factors during transportation and storage. Intelligent packaging includes time-temperature indicators, gas detectors, and freshness and/or ripening indicators. At the same time, advances in nanotechnology and the improvement of nanomaterials will enable the development of better and new active and intelligent packaging. Such packaging provides great benefits to the food industry to improve freshness, shelf-life of food, and allows monitoring to control the storage conditions from the place of production to consumption by the final consumer.     

Intelligent Packaging: Concepts and Applications

ABSTRACT: Intelligent packaging is an emerging technology that uses the communication function of the package to facilitate decision making to achieve the benefits of enhanced food quality and safety. In this paper, the term intelligent packaging is defined based on a proposed model of packaging functions, which is consistent with the historical development of food packaging. A conceptual framework is also developed to provide more precise meaning to the definition and to elucidate the anatomy of the intelligent packaging system. The latest advances in smart package devices including barcode labels, radio frequency identification tags, time-temperature indicators, gas indicators, and biosensors are reviewed. The applications of the conceptual framework to Hazard Analysis Critical Control Points and microwave ovens are illustrated. A research roadmap for intelligent packaging is also suggested.     

Computer-supported probabilistic engineering tools assisting fill optimization and the waste reduction of low/intermediate moisture foods supporting vulnerable populations

This work focuses on the shelf-life of moisture-sensitive products, particularly intermediate-moisture (IMFs) and low-moisture foods (LMFs), which can support the needs of vulnerable populations. Deterministic and probabilistic engineering methodologies, i.e., ignoring and considering the variability of parameters used in calculations, respectively, were compared when selecting the initial water activity of product mix components or the packaging materials achieving the shelf-life necessary to reach consumers with safe and high quality products, and when filling packages with the declared net weight. This document presents detailed examples and reviews published computational tools developed to solve these cases. The application of probabilistic engineering and computer supported tools can help developers optimize the product formulation and packaging material selection to reduce food waste by increasing the probability that products will have the shelf-life necessary to be stored and distributed to reach all consumers, and particularly at-risk populations and those affected by natural or man-made disasters.Industrial relevanceUndoubtedly, the need for food waste reduction is now a key responsibility for food producers and consumers. The lack of sufficient food creates social and economic instability, and this is an unfavorable situation for the growth of the food industry. Food waste also increases the cost of products, particularly when retailers and consumers demand a refund for a product that did not meet the shelf-life declared or at least expected for the product. This work reviews computer supported probabilistic engineering tools to reduce the waste of products with a shelf-life controlled by the product formulation and the moisture barrier properties of the packaging material.     

Industrial packaging developments for the global meat market

Packaging companies must carefully monitor retail and consumer trends to best utilize, direct, or prioritize their research dollars in developing packaging and packaging systems to meet these demands. This paper reviews packaging developments that are resulting from numerous trends taking place in the meat industry and in the retail sector. Current case ready packaging solutions that meet the needs of retailers to reduce labor in the back of the retail stores, and the consumer needs for a fresh product with excellent quality and palatability are also discussed. It will also review the current packaging options that are being developed to help consumers battle their "time crunch" with ready meal solutions. Finally, the necessity to increase food safety or eliminate pathogens while producing a high quality product continues to drive packaging development. Current systems and packaging available for post packaging pasteurization will be discussed.     

Antimicrobial nanoparticles and biodegradable polymer composites for active food packaging applications

The food industry faces numerous challenges to assure provision of tasty and convenient food that possesses extended shelf life and shows long-term high-quality preservation. Research and development of antimicrobial materials for food applications have provided active antibacterial packaging technologies that are able to meet these challenges. Furthermore, consumers expect and demand sustainable packaging materials that would reduce environmental problems associated with plastic waste. In this review, we discuss antimicrobial composite materials for active food packaging applications that combine highly efficient antibacterial nanoparticles (i.e., metal, metal oxide, mesoporous silica and graphene-based nanomaterials) with biodegradable and environmentally friendly green polymers (i.e., gelatin, alginate, cellulose, and chitosan) obtained from plants, bacteria, and animals. In addition, innovative syntheses and processing techniques used to obtain active and safe packaging are showcased. Implementation of such green active packaging can significantly reduce the risk of foodborne pathogen outbreaks, improve food safety and quality, and minimize product losses, while reducing waste and maintaining sustainability.     

基于天然色素的食品新鲜度指示包装研究进展

随着食品安全意识的不断增强,消费者希望通过更加快捷直观的方式了解他们所购买食品的质量。由此出现了能在食品运输和储藏过程中,向人们提供食品质量信息的食品新鲜度指示包装。考虑到食品的安全性,越来越多的研究者开始利用植物中提取的天然色素作为指示剂。本文综述了近年来以花青素、姜黄素、茜素和紫草素为染料的食品新鲜度指示膜的研究现状。分析了基于天然色素的食品新鲜度指示膜在生鲜肉、水产品、牛奶和水果中的应用原理及其研究进展,并对食品新鲜度指示包装的研究和应用前景进行了展望。