Are social embeddedness associated with food risk perception under media coverage?

Traceability system has received wide attention in solving food safety issues, via which food information could be tracked back to producer/farmers. Consumers need to obtain this information from producers or social networks, trust in the information,and consequently assess perceived risks, especially when food scandals are exposed to the media. In this study, we introduce the social embeddedness theory to understand how consumers’ social activities affect their risk perceptions on traceable food. Specifically, we investigate how risk perceptions are predicted by the interpersonal relationships, organizational level and social-level relationships. Results show that the interpersonal relationships were associated with lower levels of risk perceptions, while organizational and social relationships impacted consumer’s risk perceptions at middle and higher levels,respectively. Results also show that the "ripple effect" extended to effect of risk events with negative information, however,did not exist for the group exposed to positive information. Potential food safety implications have been proposed to identify for effective risk mitigation under media coverages.

An Empirical Study on the Genetically Modified Food Risk Perceived by the College Students with Different Majors

The debate about the safety of genetically modified foods has never stopped,and different consumers have different judgments. On the basis of literature research,this paper designs the corresponding questionnaire for empirical analysis. With the college students as the object of study,this paper explores the differences in perceived genetically modified food risk by the college students with different majors,as well as the differences in the information processing mode adopted by the college students with different majors,and the differences in the perceived risk after adopting different information processing mode. The results show that there are significant differences in the perceived genetically modified food risk among the college students with different majors,the economics students have the highest average perceived risk; there are also significant differences in the information processing mode adopted by the college students with different majors,and the perceived risk is different when using the heuristic information processing mode.

Identification of Antioxidant Additives in Food Products Sold in Dakar Markets

The use of food additives in industrial production has the advantage of improving sensory properties, technological quality and extending the shelf life of foods. Among the most widely used additives are antioxidants, which prevent oxidation, browning and rancidity reactions in foods. However, the strong presence of these additives on the market is not without risks for human health, and should be controlled to guarantee food safety. Analysis of the risks associated with consumption of foods containing these additives requires, among other things, information on the frequency of use of these additives in various consumer products. The aim of this study is therefore to identify the antioxidants present in industrial food products distributed in Dakar. The methodology adopted consists of a qualitative analysis based on the identification of additives from food labels. Investigations were carried out in 9 stores, 4 superettes and 2 supermarkets located in different districts of Dakar. The results revealed the presence of 12 antioxidant additives, dominated by citric acid (53%) and ascorbic acid (29%). These studies have also highlighted the simultaneous use of several antioxidants in the same food product. Moreover, for some artificial antioxidants identified antioxydant such as BHA and BHT, health risks are associated with their consumption. The results of this study open up prospects for the development of information databases on food additives.

The Benefit Risk Assessment of Consumption of Marine Species Based on Benefit-Risk Analysis for Foods(BRAFO)-tiered Approach

Objective To assess the net health effect caused by the consumption of specific marine species based on Benefit-Risk Analysis for Foods （BRAFO）-tiered approach. Methods Twenty species were collected from the Zhoushan Archipelago, China. Concentrations of n-3 long-chain polyunsaturated fatty acids, methyl mercury （MeHg）, and dioxin-like compounds （DLCs） in the samples were analyzed for benefit risk assessment based on BRAFO-tiered approach. Results Based on the BRAFO-tiered approach, reference scenario （no intake） and alternative scenario （intake of specific species of 200 g/week） were determined. The exposure to MeHg/DLCs via alternative scenario of all studied species did not exceed provisional tolerable weekly/monthly intake. However, the adult population with high DLCs exposure in China would significantly exceed the upper limit of DLCs via an additional alternative scenario of some species such as Auxis thazard. The results of deterministic computation showed that alternative scenario of all studied species generated clear net beneficial effects on death prevention and child IQ gain. Conclusion The alternative scenario of all studied species could be recommended to population with average DLCs exposure, and the reference scenario of species with relatively high DLCs concentration could be recommended to population exposed to high DLCs.

Risk Analysis of Sulfites Used as Food Additives in China

This study was to analyze the risk of sulfites in food consumed by the Chinese people and assess the health protection capability of maximum-permitted level （MPL） of sulfites in GB 2760-2011. Sulfites as food additives are overused or abused in many food categories. When the MPL in GB 2760-2011 was used as sulfites content in food, the intake of sulfites in most surveyed populations was lower than the acceptable daily intake （ADI）. Excess intake of sulfites was found in all the surveyed groups when a high percentile of sulfites in food was intaken. Moreover, children aged 1-6 years are at a high risk to intake excess sulfites. The primary cause for the excess intake of sulfites in Chinese people is the overuse and abuse of sulfites by the food industry. The current MPL of sulfites in GB 2760-2011 protects the health of most populations.

The Application of Big data Mining in Risk Warning for Food Safety

Comprehensive evaluation and warning is very important and difficult in food safety. This paper mainly focuses on introducing the application of using big data mining in food safety warning field. At first,we introduce the concept of big data miming and three big data methods. At the same time,we discuss the application of the three big data miming methods in food safety areas. Then we compare these big data miming methods,and propose how to apply Back Propagation Neural Network in food safety risk warning.

Financial Innovation Way of Avoiding Risk of Climate Disasters in Food Production:Weather Index Insurance

Climate change will lead to a variety of climate disasters, and climate disasters have a greater impact on China＇s food production. Weather index insurance is a new financial way to avoid risk of climate disasters effectively in China＇s food production. Firstly, the relationship between weather index insurance and food production in China was elaborated, and then the development status, advantages and disadvantages of weather index insurance in China at present were analyzed. Finally, some countermeasures against the problems of weather index insurance in China were put forward.

Food Intake Habit and Cardiovascular Risk

To determine the relationshipof dietary factors to cardiovascular disease, surveys were carried out in 1985 (pilot study) and 1989 (core study) as a part of the International Cooperative Cardiovascular Diseases and Alimentary Comparison (CARDIAC) study. Food pattern was observed and blood pressure was measured with an automatic electronic sphygromanometer. The diet in Guangzhou seems more refined, fresher and offers more variety than that in the other areas in China. Both systolic and diastolic blood pressure have risen in the period of socioeco-nomic development. Food intake habits are changing in Guangdong, China, with a trend toward an unhealthy diet which increases the risk of cardiovascular disease.

New development in risk assessment of genotoxic carcinogens in foods

The no-observed-effect level (NOEL) in a study of carcinogenicity for compounds that are both genotoxic and carcinogenic represents the limit of detection in that bioassay, rather than an estimate of a possible threshold. Therefore, for those genotoxic and carcinogenic contaminants (e.g. acrylamides, PAHs, etc.) in foods it is not possible to develop health-based guidance values (e.g. ADI or PTWI) using the traditional NOEL and safety/uncertainty factors.

行政法视角下的食品安全风险监测与评估

我国已经初步建立了食品安全风险监测与评估相关的法律制度,国家食品安全风险监测网也已经建成。该法律制度属于行政法范畴,具有行政法的属性。从行政法的视角分析,现行风险监测与评估机制在信息共享、风险预警、联合执法等方面还存在一些问题。为能够更好地保障食品安全,应该重构风险监测与评估法律制度,强化风险意识,改进程序设定,不断完善监测网络,促进食品安全风险监测和食品安全监督抽检系统并轨。科学高效的风险监测与评估有利于及时发现食品安全风险,引导制定食品安全标准,帮助监管部门对于食品安全进行分级管理,从而进一步规范我国的食品市场秩序,为人们提供放心满意的食品。

互联网背景下食品安全的风险及治理对策

近些年随着网络科技的快速发展,互联网食品行业也在加速发展,食品流通更加便捷,更好地迎合了当代网络消费群体需求,但繁荣景象的背后,存在着质量监管不力、法律法规不够完善等问题。基于“树立大食物观”“推动传统粮食安全向食物安全进行转变”等理念,对互联网背景下食品行业的发展现状及互联网食品安全存在的问题进行分析,提出相关食品安全问题的解决对策,以期促进我国互联网食品行业全面健康有序的发展。

“智慧+食品监管”:发展历程、应用现状与未来方向

大食物观为食品产业的未来发展提出了新的需求。随着食品产业的扩大和升级,影响食品安全的因素将变得越来越复杂,因而带来更为艰巨的食品安全风险防控任务。只有保障业态安全,食品产业才能健康和顺利发展。当前,有限的监管资源和力量与食品产业中繁重复杂的监管任务之间的矛盾日益凸显,传统的监管手段和方式难以满足食品产业的高质量发展需求。数据驱动下的计算机科学和智能技术为食品监管提供了技术切入点。在食品产业链中,实时采集各种信息形成“数据智能”,发展食品行业的智慧监管技术,有助于建设规范有序、协同高效的食品产业生态环境,为食品行业高质量发展提供保障。介绍了食品产业中智慧监管从初始到繁荣的发展历程,分析了智能技术在食品全产业链和食品监管体系数字化建设中的应用,指出了以安全为底线,以品质监测、营养分析、风味评估为新导向的食品智慧监管未来发展方向,探讨了食品行业智慧监管面临的机遇和挑战,希望为食品监管的智能化和高质量发展提供技术参考。

Risk Assessment of Heavy Metals in Food Crops at Abandoned Lead-Zinc Mining Site at Tse-Faga, Logo, Lga, Benue State, Nigeria

Hundreds of children died in 2010 due to suspected lead poisoning from mining sources in Zamfara State among epidemiological concerns. Evaluating ecological and human health risks of heavy metals levels in sampled food crops harvested near two abandoned Lead-Zinc mining sites at Logo Benue State is crucial. Abelmoschus esculentus, Carica papaya, Manihot esculenta, and Zea mays were sampled, prepared, and analyzed for four heavy metals using the Atomic Absorption Spectrophotometric method. The mean data from the analysis of variance was subjected to ecological and health risk models. Pb means value ranged from Carica papaya Peel 0.46 ± 0.011 mg/kg to 1.30 ± 0.01 mg/kg in Zea mays seed. Zn was highest in Carica papaya flesh 0.50 ± 0.01 mg/kg, and lowest in Manihot esculenta peels and its flesh 0.12 ± 0.000 mg/kg. Hg and Cd were below detectable levels. Zea mays seeds (1.001) had the highest Pd bioaccumulation factor. BAF of zinc and ecological indices were <1. Daily Intake of Metals were all <1, however, Hazard Quotient (HQ) of Pb was ≥1 in Manihot esculenta flesh 1.143 and Zea mays at 1714. Cancer Risks were within permissible range (10-4 - 10-6). Health Risk result indicates communities around the mining area may be at risk of lead poisoning therefore due to high contamination of samples, routine checks on heavy metals especially lead is recommended to prevent excessive bioaccumulation in the body.

镧系配位聚合物在食品风险因子检测中的研究进展

镧系配位聚合物是由镧系金属离子与有机桥联配体组装形成具有尺寸可调、多孔网络结构的纳米材料。镧系金属自身独有的[Xe]4f n电子构型和类似梯形能态,使其拥有发射带窄、斯托克斯位移大、激发态寿命长及量子产率高等优异的光学特性。因此,以镧系配位聚合物为基础的荧光探针在分析传感领域占据了举足轻重的地位。该文主要综述了基于镧系配位聚合物荧光探针的荧光特性及检测性能,进一步归纳了其在食品风险因子检测中的应用研究进展,提出了未来镧系配位聚合物在食品安全检测中的应用需求并对其发展趋势进行了展望,为高性能镧系配位聚合物荧光探针的开发与应用提供了参考。

2022年青岛市食品安全风险监测结果分析

目的:了解青岛市食品中的主要污染物以及有害因素的污染现状,及时发现食品安全隐患。方法:按照《2022年青岛市食品安全风险监测实施方案》及《国家食品污染和有害因素风险监测工作手册》中的相关规定进行采样、检测。结果:2022年共监测8大类食品,采集共980份样品,合格率为95.00%。其中,化学污染物与有害因素监测合格率为91.30%,食源性致病菌监测合格率为98.01%。结论:青岛市食品安全水平保持稳定向好,但仍然存在食品安全隐患,较为突出的问题为海产品中的重金属污染。

风险叠加背景下我国粮食安全面临的挑战及对策

受地缘冲突、极端气候、贸易保护主义日益盛行等因素影响,全球粮食市场不稳定性显著增强。一方面,印度等主要粮食出口国陆续实施粮食出口限制政策以保障本国粮食安全;另一方面,厄尔尼诺现象下极端天气频发,叠加地缘政治经济冲突,引发新一轮国际粮价大幅上涨,冲击我国粮食进口国际供应链。为保障我国的粮食安全,应进一步优化饲料粮生产结构,有效降低粮食产后损失率,积极参与全球粮食安全治理,推动中国粮企布局全球粮食产业链供应链,并加大期货市场风险防范力度。

食品安全风险监测计划何以高效决策?——基于组织规范构造的视角

食品安全风险监测计划决策的时效性、科学性乃至执行效率,往往受制于相关政府职能部门的组织机构建制水平。有必要基于组织规范构造的视角,围绕所涉政府职能部门的权责配置与职权行使事项,来系统性约束和保障其机构能力。一方面,应针对专有权责与共有权责来设定其权责配置规范,以彰显相应职能部门在该类决策过程中的差异性决策设计与多元化决策考量。另一方面,应针对监测计划设置与监测信息传递来设定其职权行使规范,以厘清相应职能部门在该类决策过程中的内部决策定位与外部决策整合。最终尝试依托复合决策维度中、决策要素驱动下的协同履职,来明晰实现高效决策的可行规范进路。

基于食品安全风险感知对消费者行为的影响研究——以山东省社区团购情景下的生鲜食品消费为例

基于相关文献,构建一个食品安全风险感知对消费者行为的研究模型并提出相应的研究假设,利用线上问卷采集数据,运用pearson相关分析和结构方程模型进行实证研究,探讨消费者在社区团购平台购买生鲜产品时的食品安全风险感知对其消费行为的影响。结果显示,卷入程度和风险态度对消费者的食品安全风险感知具有显著的正向效应;消费者的风险感知对减少风险行为具有显著的正向影响,并且消费者也会根据感知到的食品安全风险采取不同的应对措施。

食品危害因子检测与安全风险预测研究进展

食品危害因子检测与安全风险预测作为食品质量管理的重要环节,一直是学者高度关注的热点问题。为了今后更好地开展相关工作,本文首先回顾了常规食品危害因子检测方法的研究进展;同时介绍了如纳米酶、成簇的间隔短回文重复序列(clustered regularly interspaced short palindromic repeats,CRISPR)及其相关蛋白(CRISPRassociated protein,Cas)组成的CRISPR/Cas系统传感器、核磁共振等新型食品危害因子检测方法以及磁性共价有机骨架等新型材料在该领域的应用;然后对主观赋权评价、机器学习及深度学习等方法在食品安全风险预测中的应用进行了阐述;最后对各方法的优缺点作了对比分析,并探讨了未来的研究方向。

肉类加工中的食品安全风险及高效检测技术

本文探讨了肉类加工中的生物性危害、化学性危害、物理性危害及对应的高效检测技术。为了应对这些食品安全风险,现代肉类加工行业引入了DNA条形码技术、微生物学检验、高效液相色谱法、重金属检测仪、金属探测器及X射线检测等高效检测技术,以期通过高效检测技术,促使肉类加工企业提高食品安全和产品质量,减少潜在的食品安全隐患。