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.

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。

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。

食品风险监测中农药残留的检测技术研究

随着现代农业的发展,农药在作物保护中发挥着重要作用,但随之而来的农药残留问题也引发了广泛关注。农药残留不仅影响食品质量,还可能对人体健康造成潜在威胁。因此,对农药残留进行准确、高效的检测成为食品风险监测的重要一环。本文概述了农药残留的来源及其对食品安全的潜在危害。系统梳理了当前农药残留检测技术的种类及其特点。

新发展格局下中国粮食安全面临的风险挑战及其治理

当代中国粮食供求紧平衡态势将长期存在,但受国内外风险因素叠加影响,这种紧平衡态势很可能因某种因素突出而被暂时打破,粮食短缺局面将持续数年时间才有可能恢复到紧平衡状态。国内外风险挑战目前主要涉及如下几个方面:显性耕地数量质量仍齐降,隐性耕地有遭毁风险;自然灾害风险有加重趋势,病虫害呈现频发态势;农民种粮意愿仍继续降低,“非粮化”压力偏大;粮食贸易的不可控性大增,全球供应链频繁遭冲;粮食应急保障体系有短板,乡镇村社能力较脆弱;粮食购销风险隐患顽疾多,数量质量须持续关注。此外,水资源供需矛盾持续凸显、育种全链条创新明显不足、农机研发及应用距离世界先进水平仍有差距、化肥农药物品投入强度高但资源利用效率比较低、基层农技推广人员数量不足和素质有待提升、粮食隐形浪费现象还不同程度存在甚至有反弹风险、粮食供应难以满足居民消费提档升级需求等风险也不容忽视。在这众多风险挑战中,国内因素应对风险准备不足是最重要因素。防范粮食安全保障风险,既要有底线思维以保最基本民生,又要有目标追求以夯实社会主义现代化强国的根基。围绕“全方位夯实粮食安全根基”总要求,具体治理建议是:贯彻落实好《粮食安全保障法》,以宪法为中心完善粮食安全法体系;全方位夯实粮源汇集之根基,持续巩固多渠道稳定汇集粮源能力;全方位提升粮食供应之能力,畅通粮食保供环节“最后一公里”;全方位筑牢粮食安全之屏障,明确把粮食安全纳入公益诉讼范围。

安抚奶嘴质量状况分析与建议

分析了我国安抚奶嘴产品存在的质量状况并提出了建议。近年来,我国安抚奶嘴产品总体不合格率高达18.2%。其中,深圳市和上海市的不合格率较高,分别为22.5%和20.0%,均超过平均不合格率。通过分析监督抽查不合格情况及安抚奶嘴产品国内召回情况,归纳总结分析安抚奶嘴产品主要存在的质量状况问题及所存在的风险。以期为生产企业、商场、电商平台及行业协会提出建议,共同加强安抚奶嘴产品质量意识,提升安抚奶嘴产品质量,为我国食品相关产品安全保驾护航。

乡村振兴战略下中国农业收入保险创新发展研究

在乡村振兴战略和粮食安全战略背景下,为深化农业供给侧结构性改革赋能我国“三农”产业结构升级,亟待加快构建农业收入保险制度体系,以实现农业强国目标。本文探讨了乡村振兴战略下创新发展我国农业收入保险的紧迫性和必要性,分析了我国农业收入保险试点中遇到的困难和不足,并借鉴美国、日本两国农业收入保险的制度安排和经营管理经验,提出了乡村振兴战略下创新发展中国农业收入保险的政策建议。

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。

食物过敏的膳食危险因素及其调控作用机制研究进展

当前,食物过敏的发病率在全球范围内逐渐升高,食物过敏已经成为人们日益关注的食品安全和公共卫生问题。除遗传因素外,膳食因素是导致食物过敏风险升高的重要因素,而肠道菌群在膳食和免疫系统之间起着重要的中介作用。鉴于此,本文系统综述了近年来针对食物过敏膳食危险因素的相关研究,针对不同危险因素的免疫学作用机理、人群队列研究以及干预实验的结果进行了汇总,并对其中肠道菌群发挥的作用进行了深入探讨。本文可为食物过敏的预防和控制,以及以肠道菌群为靶点的食物过敏机制研究与调控策略提供借鉴和新思路。