玩转二维码 点阵码技术分析

正在工业4.0及互联网+时代,产品防伪溯源是大势所趋,国家、行业、印刷和防伪企业以及品牌商纷纷筹建自己的防伪溯源系统。在防伪溯源系统中众多跟踪技术之中,条码作为连接消费者和溯源信息的入口技术,被广泛应用。常见的条码按维数可分为一维条码(常见的中国药监码CODE128C、商品条形码EAN码);二维条码(常     

实施食品安全追溯 助推食品安全监管

GSI崂山绿茶追溯系统目前已在青岛涵雪饮品有限公司正式运行使用。今年涵雪绿茶的外包装上都有了一组唯一的溯源码。消费者登陆青岛市技术监督科技信息所的网站就可以凭借溯源码查询到产品名称、条码号、包装规格、生产许可证号等11项产品基本信息;种植的地理位置、种植环境日照时长、土壤酸碱度、降雨量等影响茶叶品质的19项产品质量信息以及产品的检测报告等。同时网站还提供累计查询次数,这一项的设置可以起到防伪的作用。通过这一串数字,消费者就可以全面了解所购买茶制品的各项信息。     

浅析动态AR技术在烟标中的应用

正随着消费者对包装印刷产品质量要求的提高,提升包装类产品的附加值、采用先进的防伪技术势在必行。目前烟标印刷中采用的防伪技术主要分为以下几类:一是印刷工艺防伪,主要采用特殊防伪印版、特殊网点防伪、激光全息烫印防伪等;二是印刷材料防伪,采用特殊的承印材料、防伪印刷油墨以及光栅防伪的方式达到防伪效果;三是附加信息防伪,如二维码溯源、RFID标签防伪等。目前烟标防伪的主要问题是高成本与低效率并存、防伪宣传不到位、设计不当等。增强现实技术(AR)能将现实信息与虚拟信息结合,     

电码电话防伪包装设计

电码电话防伪包装是一种防伪网络系统,也是一种封闭型防伪链。也就是产品出厂进入流通环节后,最终到达消费者手中,而消费者又可通过有关信息(包装的”明码”与“暗码”)查询到产品(商品)的原始“档案”凭据,从而得知所购商品的真伪。这种防伪包装系统将厂家、经销商(流通)、消费者连成一个封闭的循环链。 一、原理 电码电话防伪根据存档式二元防伪原理、利用电脑及现代电讯     

RFID电子标签在服装产品防伪溯源中的应用

RFID电子标签,又称无线射频识别电子标签。识别装置与被植入RFID电子标签的物品接近时,识别装置通过无线电讯号识别RFID标签写入的物品信息并读写相关数据,自动地获取被识别物品的相关信息,并提供给后台计算机处理系统来完成相关信息处理。本文通过介绍与第三方检验机构(中纺标公司CTTC)在纺织服装领域利用先进信息技术进行防伪溯源的科技研究项目,研究了如何利用RFID电子标签植入服装产品,使企业和消费者通过读取RFID电子标签数据来辨别品牌服装真伪,起到防伪溯源的作用。     

二维码食品追溯 让你更了解产品——访碧彩（上海）衡器技术有限公司亚太地区商务拓展总监白双扬

随着近些年互联网技术的发展和食品安全事件频发．互联网及信息通信技术在改善食品安全监管漏洞、保障消费者利益方面发挥着越来越重要的作用．而二维码追溯系统正是该技术的体现。所谓的二维码溯源系统,简单说就是通过二维码技术将食品的生产、物流、经销、检验检疫、零售等各环节的信息记录到系统中,消费者购买产品后,     

二维码在包装上的防伪营销应用

二维码在包装上的应用越来越受到终端用户的认可和青睐,一些终端用户将二维码用于产品包装或标签上,不仅能实现防伪、追溯、防窜货、物流管理等功能,还能与公司的官方网站相连接,方便消费者获得产品及相关促销活动信息,从而促进产品销售。上期,我们为大家介绍了一种可实现化妆品防伪的二维码溯源解决方案,受到了终端用户的关注。本期,我们将与大家分享二维码防伪与微信防伪在包装上相结合的应用,实现防伪和营销双重功能,希望能对大家有所启发。     

基于HACCP的新疆羊肉屠宰加工可追溯系统溯源信息分析

食品质量安全关乎到消费者的生命健康,随着食品问题越来越严重,需要运用科学的方法和规范以保证食品质量安全。可追溯系统可有效对食品进行监管控制,在对危害分析与关键控制点(HACCP)和可追溯系统理论分析的基础上,结合新疆羊肉屠宰加工的实际情况,对羊肉屠宰加工过程中各环节中可能存在的生物、化学、物理危害进行分析,确定关键控制点以及可追溯系统的溯源信息,为可追溯系统的构建提供参考,从而提高羊肉屠宰加工环节的安全性,保证消费者健康,促进新疆羊肉业的发展。     

进口燕窝溯源系统的构建和应用

随着食品贸易全球化和供应链的复杂化,监管全球食品供应链无疑是一项艰巨挑战。目前,一种由政府监管部门参与监督、各食品企业参与配合的第三方溯源服务系统,已逐渐成为监管制度的有效补充。基于我国与马来西亚、印度尼西亚等燕窝原产国输华燕窝双边议定书的签订,以及境外燕窝加工企业卫生注册工作的开展,中国检验检疫科学研究院(Chinese Academy of Inspection and Quarantine,CAIQ)开发了燕窝溯源管理服务平台,为获华注册的境外燕窝加工企业的输华燕窝提供溯源服务,输华燕窝的最小销售包装上均加贴CAIQ溯源标签,我国消费者可通过扫描溯源标签上的二维码或通过网站查询16位燕窝码,获得燕窝产品的燕屋、加工、出口、进口、经销各环节的全程追溯信息,为消费者识别和选购合法进口燕窝提供有效途径。CAIQ溯源系统是建立在进口注册和口岸检验检疫基础上的追溯系统,是搭载了质量信息的追溯系统。     

利用甘蔗糖厂现有条件建设安装二维码防伪溯源体系的工程实践

本文通过对某糖厂二维码防伪溯源体系建设安装工程实践的浅析表明,制糖企业完全可以利用现有包装车间的建筑和场地条件,采取"因地制宜、因势利导、因企施策、改造升级"的建设原则以适宜的成本和较短的时间上马二维码防伪溯源体系,在保障蔗糖制品的安全和广大消费者的基本权益方面具有积极的现实意义。     

Textural Properties of Cold-set Gels Induced from Heat-denatured Whey Protein Isolates

A 9% whey protein (WP) isolate solution at pH 7.0 was heat-denatured at 80°C for 30 min. Size-exclusion HPLC showed that native WP formed soluble aggregates after heat-treatment. Additions of CaCl2 (10–40 mM), NaCl (50–400 mM) or glucono-delta-lactone (GDL, 0.4–2.0%, w/v) or hydrolysis by a protease from Bacillus licheniformis caused gelation of the denatured solution at 45°C. Textural parameters, hardness, adhesiveness, and cohesiveness of the gels so formed changed markedly with concentration of added salts or pH by added GDL. Maximum gel hardness occurred at 200 mM NaCl or pH 4.7. Increasing CaCl2 concentration continuously increased gel hardness. Generally, GDL-induced gels were harder than salt-induced gels, and much harder than the protease-induced gel.     

Occurrence of bisphenol-F-diglycidyl ether (BFDGE) in fish canned in oil

The levels of bisphenol-F-diglycidyl ether (BFDGE) were quantified as part of a European survey on the migration of residues of epoxy resins into oil from canned fish. The contents of BFDGE in cans, lids and fish collected from all 15 Member States of the European Union and Switzerland were analysed in 382 samples. Cans and lids were separately extracted with acetonitrile. The extraction from fish was carried out with hexane followed by re-extraction with acetonitrile. The analysis was performed by reverse phase HPL C with fluorescence detection. BFDGE could be detected in 12% of the fish, 24% of the cans and 18% of the lids. Only 3% of the fish contained BFDGE in concentrations considerably above 1mg/kg. In addition to the presented data, a comparison was made with the levels of BADGE (bisphenol-A-diglycidyl ether)analysed in the same products in the context of a previous study.     

Contribution of European research to risk analysis

The European Commission's, Quality of Life Research Programme, Key Action 1—Health, Food & Nutrition is mission-oriented and aims, amongst other things, at providing a healthy, safe and high-quality food supply leading to reinforced consumer confidence in the safety of European food. Its objectives also include the enhancing of the competitiveness of the European food supply. Key Action 1 is currently supporting a number of different types of European collaborative projects in the area of risk analysis. The objectives of these projects range from the development and validation of prevention strategies including the reduction of consumers risks; development and validation of new modelling approaches; harmonization of risk assessment principles, methodologies, and terminology; standardization of methods and systems used for the safety evaluation of transgenic food; providing of tools for the evaluation of human viral contamination of shellfish and quality control; new methodologies for assessing the potential of unintended effects of genetically modified (genetically modified) foods; development of a risk assessment model for Cryptosporidium parvum related to the food and water industries; to the development of a communication platform for genetically modified organism, producers, retailers, regulatory authorities and consumer groups to improve safety assessment procedures, risk management strategies and risk communication; development and validation of new methods for safety testing of transgenic food; evaluation of the safety and efficacy of iron supplementation in pregnant women; evaluation of the potential cancer-preventing activity of pro- and pre-biotic ('synbiotic') combinations in human volunteers. An overview of these projects is presented here.     

低温带皮菜籽粕微粉的不同粒级部分的功能特性

为研究低温带皮菜籽粕微粉的不同粒级部分的功能特性,以经低温脱脂的带皮菜籽粕为原料,经微粉碎后筛分成212~425μm、150~212μm和106~150μm的3个不同粒级的微粉样品,检测这些样品的吸水性、吸油性、乳化性和乳化稳定性、蛋白质体外消化率。结果表明:1 3个不同粒级的微粉样品之间的粗纤维含量存在显著差异,表明三者的结构组成成分有一定差异。23个微粉样品的乳化活性和乳化稳定性随粒度级别的减小而显著增加(P0.01)。33个微粉样品的蛋白质体外消化率随粒度级别的减小而显著增加(P0.01)。4不同粒级带皮菜籽粕微粉样品的吸水性与吸油性受其结构组成物质不同和粒度的双重影响,与粒度的相关性不明显。     

Microbiology of food taints

Fresh and processed foods are often spoilt by the presence of undesirable flavours and odours caused by microbial action. The aim of this paper is to review the current knowledge of microbiologically induced taints that occur in a wide range of foodstuffs, including meats, poultry, fish, crustaceans, milk, dairy products, fruits, vegetables, cereals and cereal products. Examples have been chosen where the compounds responsible for the taint have been identified and sufficient data obtained to demonstrate the involvement of microorganisms. However, in some cases the full identity of the causative organism may not have been elucidated. The types of microorganisms covered by this review include bacteria, fungi, yeasts, actinomycetes and cyanobacteria. Although cyanobacteria do not in general infect foods, their presence in aqueous systems and water supplies can lead to off-flavours in aquatic organisms and processed foodstuffs. Several examples of each of these processes are discussed. Wherever possible, the likely biosynthetic pathway used by the microorganism to produce the offending compound in a foodstuff is indicated.     

Analysis for organic residues from aids to polymerization used to make plastics intended for food contact

Polymers intended for food contact use have been analysed for organic residues which could be attributed to a range of substances employed as polymerization aids (e.g. initiators and catalysts). A wide range of polymers was extracted with solvents and the extracts analysed by gas chromatography-mass spectrometry (GC-MS). The overwhelming majority of substances identified were not derived from aids to polymerization but were oligomers, additives and adventitious contaminants. However, a small number of substances were identified as initiator residues. These included tetramethylsuccinonitrile (TMSN) which was observed in two polymers and it derived from recombination of two azobisisobutyronitrile (AIBN) initiator radicals. Methyl benzoate, benzoic acid, biphenyl and phenyl benzoate were detected in one poly(methyl methacrylate) sample and in two polyvinylchlorides and they are thought to be derived from benzoyl peroxide initiator. TMSN was subsequently targeted for analysis of poly-(methyl methacrylate) plastics using proton nuclear magnetic resonance spectrometry (¹     

Tests of potential functional barriers for laminated multilayer food packages. Part II: Medium molecular weight permeants

Experiments were performed to characterize the kinetics of the permeation of different medium molecular weight model permeants: bisphenol A, warfarin and anthracene, from liquid paraffin, through a surrogate potential functional barrier (25 microns-thick orientated polypropylene--OPP) into the food simulants olive oil and 3% (w/v) acetic acid. The characterization of permeation kinetics generally observed the permeation models previously reported to explain the experimental permeation results obtained for a low molecular weight group of model permeants. In general, the model permeants exhibited behaviour consistent with their relative molecular weights with respect to (a) the time taken to attain steady-state permeation into the food simulant in which they were more soluble, (b) their subsequent steady-state permeation rates, and (c) their partition between liquid paraffin and the OPP membrane.     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. I: Interlaboratory studies of methods of analysis

This paper describes the first part of a project undertaken to develop mussel reference materials for Paralytic Shellfish Poisoning (PSP) toxins. Two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin (STX) and decarbamoyl-saxitoxin (dc-STX) in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the second part of the project: the certification exercise. In the first study, 18 laboratories were asked to measure STX and dc-STX in rehydrated lyophilized mussel material and to identify as many other PSP toxins as possible with a method of their choice. In the second interlaboratory study, 15 laboratories were additionally asked to determine quantitatively STX and dc-STX in rehydrated lyophilized mussel and in a saxitoxin-enriched mussel material. The first study revealed that three out of four postcolumn derivatization methods and one pre-column derivatization method sufficed in principle to determine STX and dc-STX. Most participants (13 of 18) obtained acceptable calibration curves and recoveries. Saxitoxin was hardly detected in the rehydrated lyophilized mussels and results obtained for dc-STX yielded a CV of 58% at a mass fraction of 1.86 mg/kg. Most participants (14 out of 18) identified gonyautoxin-5 (GTX-5) in a hydrolysed extract provided. The first study led to provisional criteria for linearity, recovery and separation. The second study revealed that 6 out of 15 laboratories were able to meet these criteria. Results obtained for dc-STX yielded a CV of 19% at a mass fraction of 3.49mg/kg. Results obtained for STX in the saxitoxin-enriched material yielded a CV of 19% at a mass fraction of 0.34mg/kg. Saxitoxin could not be detected in the PSP-positive material. Hydrolysis was useful to confirm the identity of GTX5 and provided indicative information about C1 and C2 toxins in the PSP-positive material. The methods used in the second interlaboratory study showed sufficiently consistent analysis results to undertake a certification exercise to assign certified values for STX and dc-STX in lyophilized mussel.     

The Ministry of Environmental Protection Issued "Feasible Technology Guidelines for Pollution Prevention and Control in Wood Pulping Process of the Paper Industry (Trial)" and Two Other Guiding Technical Documents

On December 27t＂, 2013, the Ministry of Environmenta Protection announced that, in order to implement ＂The Environmental Protection Law of the People＇ s Republic of China＂, improve the working system in environmenta protection technologies, and promote technologica advancement in pollution prevention, the Ministry of Environmental Protection sponsored the formulation of three guiding technical documents including ＂Feasible Technology Guidelines for Pollution Prevention and Contro n Wood Pulping Process of the Paper Industry （Trial）＂     

1~(st) Intelli-Tissue~ EcoEc Tissue Machine Supplied by PMP Group Successfully Put into Operation in China

正On April 29th,2014,Intelli-Tissue EcoEc tissue machine supplied by PMP Group successfully put into operation at Hebei Xuesong Paper Co.,Ltd.,this is the first such kind of paper machine of PMP Group in China.