Flexible querying of Web data to simulate bacterial growth in food

A preliminary step in microbial risk assessment in foods is the gathering of experimental data. In the framework of the Sym’Previus project, we have designed a complete data integration system opened on the Web which allows a local database to be complemented by data extracted from the Web and annotated using a domain ontology. We focus on the Web data tables as they contain, in general, a synthesis of data published in the documents. We propose in this paper a flexible querying system using the domain ontology to scan simultaneously local and Web data, this in order to feed the predictive modeling tools available on the Sym’Previus platform. Special attention is paid on the way fuzzy annotations associated with Web data are taken into account in the querying process, which is an important and original contribution of the proposed system.     

微波干燥技术在食品中的应用

微波干燥是一种新兴加热技术。本文分析了微波加热机理及加热特点。讨论了微波在食品干燥中的应用,着重论述了在果疏干燥中的应用。     

低聚糖在婴幼儿食品中的应用

介绍了母乳中的低聚糖生理特征 ,对低聚果糖及低聚半乳糖分子结构、来源、生理功能及其目前在婴幼儿食品工业中的应用状况进行了综述     

Tracing food packaging contamination: an electronic nose applied to leftover food

ABSTRACT

The use of former food products (FFPs) as alternative feed ingredients in farm animal diets has several benefits. In fact, FFPs are a way of converting losses from the food industry into ingredients for the feed industry. FFPs are produced from packaged food and in general, they are recognised as safe. Packaging materials are not accepted as a feed ingredient according to Regulation (EC) No 767/2009, which imposes a rigorous evaluation of possible residues. A sensitive and objective detection method is therefore essential for an effective risk evaluation. Six FFP samples were subjected to electronic nose analysis. Each sample was assessed under three conditions: as-received, cleaned and experimentally-spiked. Packaging remnants were also quantified using a stereomicroscope. Data were analysed via principal component analysis using SPSS software. Although the stereomicroscopy analysis showed a low content of packaging remnants in as-received samples, the electronic nose was able to differentiate between cleaned, as-received and spiked samples. However, this method was not effective when different FFPs were analysed together. In the view of the limitations of this method, it can be concluded that the electronic nose can be considered an objective and sensitive method for the detection of packaging remnants in FFPs composed of the same matrix.     

食品安全风险监测数据统计处理常见问题探讨

为了保证食品安全风险监测数据处理、分析的合理性和科学性,获得可靠的结果,对低于检出限数据的处理、率的比较、样本类别的分组所适用的统计分析方法进行探讨。总结了食品安全风险监测数据的性质及特点,阐明了按特定研究目的数据处理分析所适用的统计分析方法,按特定的分析目的选择合适的统计分析方法,从而获得可信、可靠和可比的结果,为监测提供有力的数据支持。避免盲目的运用统计分析方法评价分析食品安全风险监测数据,进而导致评价结果偏差或错误,误导政府决策、部门监管和消费者消费。     

部分中文食品网站及网址

食品综合性网站中国调味品网ｗｗｗ .ｃｈｉｎａｃｏｎｄｉｍｅｎｔ.ｃｏｍ国际互联网中国食品信息网ｗｗｗ .ｃｈｉｎａｆｏｏｄｉｎｆｏｎｅｔ.ｃｏｍ中国食品网ｗｗｗ .ｃｎｆｏｏｄｎｅｔ.ｃｏｍ中国食品电子商务网ｗｗｗ .ｃｈｉｎａｆｏｏｄｓ.ｃｏｍ中国食品工业信息网ｗｗｗ .ｃｆｉｉｎ .ｃｏｍ .ｃｎ中国食品添加剂工业信息网ｗｗｗ .ｃｈｉｎａａｄｄｉｔｉｖｅ .ｃｏｍ食品与发酵工业ｗｗｗ .ｃｈｉｎａｉｎｆｏ .ｇｏｖ .ｃｎ中国食品科学技术学会ｗｗｗ .ｃｉｆｓｔ.ｏｒｇ .ｃｎ绿色食品网络市场ｗｗｗ .ｇｒｅｅｎｆｏｏｄ …     

部分中文食品网站及网址

食品综合性网站中国调味品网ｈｔｔｐ ://ｗｗｗ .ｃｈｉｎａｃｏｎｄｉｍｅｎｔ.ｃｏｍ中国调味品信息网ｈｔｔｐ ://ｗｗｗ .ｃｏｎｄｉｍｅｎｔ.ｎｅｔ国际互联网中国食品信息网ｈｔｔｐ ://ｗｗｗ .ｃｈｉｎａｆｏｏｄｉｎｆｏｎｅｔ.ｃｏｍ中国食品网ｈｔｔｐ ://ｗｗｗ .ｃｎｆｏｏｄｎｅｔ.ｃｏｍ中国食品电子商务网ｈｔｔｐ ://ｗｗｗ .ｃｈｉｎａｆｏｏｄｓ .ｃｏｍ中国食品工业信息网ｈｔｔｐ ://ｗｗｗ .ｃｆｉｉｎ .ｃｏｍ .ｃｎ中国食品添加剂工业信息网ｈｔｔｐ ://ｗｗｗ .ｃｈｉｎａａｄｄｉｔｉｖｅ .ｃｏｍ食品与发酵工业…     

大数据在食品安全监管风险预警中的应用

食品安全风险预警作为食品安全现代治理体系的重要一环,充分体现了“预防为主、风险管理、全程控制、社会共治”科学原则。文章重点研究了如何利用有效的数据归集和数据分析策略,通过监测、分析、评估等方式来实现食品安全风险预警,以更加科学准确的食品风险数据管理和评估体系支撑政府监管。     

食品乳化剂相关的食品安全风险

食品乳化剂的消耗量逐年递增,人群通过膳食摄入乳化剂的水平亦随之增高。乳化剂可增加肠细胞的通透性,诱发自身免疫性疾病,同时还可提高食品中污染物质的生物利用率。关注食品乳化剂对污染物质内暴露剂量的影响,防止食品安全风险被低估,有利于控制食品乳化剂带来的潜在危害。      

Acquisition of microbiological data to enhance food safety

The routine acquisition and archiving of microbiological data is undertaken for two reasons. The first is the development of historical microbiological profiles of foods, ingredients, or processes in order to determine or verify that microorganisms of concern are being controlled to the level desired. The second reason is data concerning the pathogenicity or virulence of foodborne pathogens and their behavior in foods in order to develop strategies and criteria for assuring microbiological safety. Both types of microbiological data are essential to effective food safety programs. A firm understanding of the uses and limitations of both is essential to correct acquisition, interpretation, and use of such data.     

红外及近红外光谱技术在食品分析检验中的应用进展

红外及近红外波谱技术,是利用物质对红外光区的电磁辐射的选择性吸收来进行结构分析及定性和定量分析,具有快速,方便,样品用量少,不损坏样品等优点。     

提高ELISA在食品安全检测中性能的技术进展

酶联免疫吸附检测(Enzyme-linkedimmunosorbentassay,ELISA)的核心是抗原/抗体结合反应,应用在食品安全检测中的ELISA方法,面临着待测物质在样品中含量低、免疫原性小、存在交叉反应、干扰因素多等困难。对提高食品安全ELISA灵敏度、特异性、稳定性、线性相关性的技术进行综述。     

脂质体技术应用于食品工业的最新研究进展

介绍了脂质体技术及其在食品工业中的最新研究进展与应用情况。近5年来,脂质体在充当营养新剂型或敏感成分保护性载体,构建食品酶微囊反应器,作为特殊食品组分的缓释载体,充当食品组分抗氧化评估体系,充当食品分析工具以及天然、安全的新颖食品脂质体构建等方面的研究与应用,均取得了一些重要进展。     

基于食品抽检数据的风险预警智能研究模型构建分析

近年来,国内外由食品安全问题导致的公共健康事件屡见不鲜。食品安全问题涉及食品产业链的各个环节,收集和识别食品安全风险因子,挖掘造成食品安全的重要因素,是食品安全风险预警的重要途径,也是制定管理措施的前提条件。有效利用和分析食品安全信息,开展有效预警,已经成为食品安全监管面临的重要问题。本文首先分析了食品抽检数据特征和食品安全预警模型原则,在此基础上从风险分析、趋势分析、关联挖掘、全息画像和效能评价等视角构建了基于食品抽检数据的风险预警智能分析模型。该模型旨在为食品安全的监管、消费、生产等各个环节提供有力支撑,为推进基于食品抽检数据的风险预警智能研究提供参考。     

食品供应中真菌毒素的风险分析方法

真菌毒素是真菌的代谢产物,在世界食品供应的很多环节中存在,给食品安全造成了威胁。许多真菌毒素(黄曲霉毒素、棕曲霉毒素、伏马霉素、玉米烯酮)在较低水平上的慢性毒性一般要比其急性毒性更为引人注目,这是因为有些真菌毒素具有确定的潜在致癌性,并且对他们的暴露是很广泛的。由于完全去除食品中的真菌毒素是不可能的,因此,控制其在一个不对健康构成威胁的水平就十分重要。近年来,开发了许多对危害进行评估、监控暴露量并确定相关风险的相互联系的方案。这些方案的实施过程需要有透明度,以便使危害及风险管理和干预的必要性明晰明了。风险评估提供了一种科学的背景和理念,以在合理的成本下保护公众,并允许公众或国际上进行讨论、详细审查和协调有效的政策决策。因为在生物学效果的显著性和可获得数据方面存在的偏差,就真菌毒素而言,目前没有一种方案能用来解决所有的问题,针对个案的不同方案则是必须的。     

Essential oils applied to the food act as repellents toward Tribolium castaneum

The red flour beetle, Tribolium castaneum, is a common and important insect pest of stored products. Repellency of essential oils of five Columbian aromatic plants was evaluated by allowing adults to choose between untreated oats or oats treated with different concentrations of the oils. Essential oils from Cananga odorata, Tagetes lucida and Cymbopogon citratus showed better activity than the commercial repellent IR3535 at the highest tested concentration (5 μL/g), whereas at the lowest concentration (0.0005 μL/g), oils isolated from Eucalyptus citriodora were most repellent. Results show essential oils from Colombian plants are natural repellents of T. castaneum.     

一种新的保健食品资源-狭叶荨麻的开发和应用

介绍狭叶荨麻(Urtica angustifolia)的化学成分及开发应用,并提出作为一种新的保健食品资源,狭叶荨麻在医药领域、食品领域具有广阔的开发及应用前景。     

应用HACCP系统保障学生豆奶的卫生安全

为了保障学生豆奶的卫生安全 ,选择某一公司的学生豆奶生产线作为HACCP研究对象。在GMP的基础上 ,通过危害分析 ,确定黄豆浸泡、高温加热、超高温灭菌、包装、冷藏为关键控制点。对关键控制点分别制定了适宜监控的关键限值 ,采取了纠偏行动。由于实施HACCP系统这一管理模式 ,全市 8万多名学生食用豆奶一年多未发生因食用该公司生产的学生豆奶而引起食物中毒。