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 n...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.展开更多
By constructing influence model for communication effect of food safety risk in social media environment,the influences of different response manners taken by relevant enterprises on consumers' cognition and purch...By constructing influence model for communication effect of food safety risk in social media environment,the influences of different response manners taken by relevant enterprises on consumers' cognition and purchasing intention are analyzed,and influence mechanisms of response effort level,interaction and content reliability on consumers' attitudes are revealed. Based on quasi-experimental study with three kinds of response effort levels,it is found that content reliability,interaction and effort degree of enterprise response under negative information of food safety event have significant impacts on communication effect and consumers' purchasing intention.展开更多
Celiac disease, gluten-allergy or gluten-sensitivity is caused due to glutamine protein from the grains like wheat, rye and barley (collectively called gluten). This protein damages the small intestine and causes stom...Celiac disease, gluten-allergy or gluten-sensitivity is caused due to glutamine protein from the grains like wheat, rye and barley (collectively called gluten). This protein damages the small intestine and causes stomach pain, bloating, weakness etc. Celiac disease, gluten-allergy or gluten-sensitivity has never really been taken seriously in developing countries like India. However, in developed nations like UK, USA, Canada and other parts of Europe, gluten-free foods have become quite popular. With a prevalence rate of about one in 100 - 133 people worldwide, celiac disease is widespread across the globe and life-long consumption of gluten-free food is recommended treatment for this allergy. Apart from celiac-disease patients, gluten-free foods are also consumed by health conscious people for weight management and high protein diet and by the patients for diabetes, autism and food allergies. Apart from gluten-free flour, biscuits, cookies and snacks, product innovations like gluten-free beers are becoming very popular. Big data including online blogs, articles, and reviews have played a major role in increased sales of gluten-free foods. Thus, analysis of editorial and social media content becomes essential to understand the leading trends in gluten-free foods. This study provided deep insights about positive, negative and neutral sentiments related to gluten-free foods using the data from Perspectory Media Insights and Google Trends. This study also revealed that most of the consumers talked and expected product innovation in food sections like snacks, fast food (pizza, pasta and noodles) and desserts through comments on social and editorial media. Searches were divided into developed (e.g., U.S.A.) and developing nations (e.g., India) to get more details about the consumer preferences. This study would help manufacturers of gluten-free foods to develop food products according to the choices and preferences of consumers. The study is very unique in itself since it combines big data to niche food market of gluten-free foods to draw the valuable consumer preferences using online platforms.展开更多
Stakeholders in the field of food safety management in China can be classified into three categories, government, food producers （farmers and enterprises）, and the third-party regulatory bodies. The third-party regu...Stakeholders in the field of food safety management in China can be classified into three categories, government, food producers （farmers and enterprises）, and the third-party regulatory bodies. The third-party regulation has experienced rapid development in past twenty years, and recently received considerable attention from consumers and the central government. This paper provides a review about the development, problems and future trend of the third-party regulation on food safety in China. To be specific, five forms of the third-party regulation are assessed, including media exposure, the third-party certification, regulation by consumer associations, social movements promoted by non-governmental organiza- tions （NGOs）, and regulation by industry associations. The study concludes that media and consumer associations are the major players in the third-party regulation and are highly repudiated among customers. The food certification industry has developed rapidly, but is now facing crises of confidence among consumers because of its lack of self-regulation. NGOs and industry associations still remain in the early development stages of food safety management, and therefore, are of little importance in current regulatory bodies.展开更多
This paper explores news coverage in two media: print and electronic. The discourse analysis represents differences in general structure,images attached,and texts of specific print and electronic media.
为保证原料乳质量,丰富检测原料乳中大肠菌群涉及到的培养基的验收质控菌株,采用GB 4789.28—2013《食品安全国家标准 食品微生物学检验 培养基和试剂的质量要求》中规定的验收方法,分别选取3个品牌的结晶紫中性红胆盐琼脂(violet red b...为保证原料乳质量,丰富检测原料乳中大肠菌群涉及到的培养基的验收质控菌株,采用GB 4789.28—2013《食品安全国家标准 食品微生物学检验 培养基和试剂的质量要求》中规定的验收方法,分别选取3个品牌的结晶紫中性红胆盐琼脂(violet red bile agar,VRBA)、结晶紫中性红胆盐-4-甲基伞形酮-β-D-葡萄糖苷琼脂(violet red bile agar with MUG,VRBA-MUG)、月桂基硫酸盐胰蛋白胨肉汤(lauryl tryptose broth,LST)和煌绿乳糖胆盐肉汤(brilliant green lactose bile broth,BGLB),对其进行外观、pH值、水分含量等物理指标以及生长率、选择性等微生物指标实验评价。同时以弗式柠檬酸杆菌ATCC 43864为参照,选取7株弗式柠檬酸杆菌对3个品牌的VRBA、VRBA-MUG、LST和BGLB进行验收实验评价。结果表明:3个品牌的不同培养基干粉颜色均正常,水分含量均控制在5%~6%,pH值均符合国家标准;7株弗氏柠檬酸杆菌在3个品牌VRBA、VRBA-MUG上的生长率均大于0.7;仅CMCC 48098和CICC 22910在3个品牌的LST、BGLB中浊度达到2,且导管内产生气体,与ATCC 43864结果相同。综上,3个品牌的VRBA、VRBA-MUG、LST和BGLB全部符合GB 4789.28—2013,推荐CMCC 48098和CICC22910用作验收4个培养基质控菌株的补充菌株。展开更多
基金support from the National Natural Science Foundation of China (71773109, 71703150 and 71633002)the support from the Fundamental Research Funds for the Central Universities, China
文摘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.
文摘By constructing influence model for communication effect of food safety risk in social media environment,the influences of different response manners taken by relevant enterprises on consumers' cognition and purchasing intention are analyzed,and influence mechanisms of response effort level,interaction and content reliability on consumers' attitudes are revealed. Based on quasi-experimental study with three kinds of response effort levels,it is found that content reliability,interaction and effort degree of enterprise response under negative information of food safety event have significant impacts on communication effect and consumers' purchasing intention.
文摘Celiac disease, gluten-allergy or gluten-sensitivity is caused due to glutamine protein from the grains like wheat, rye and barley (collectively called gluten). This protein damages the small intestine and causes stomach pain, bloating, weakness etc. Celiac disease, gluten-allergy or gluten-sensitivity has never really been taken seriously in developing countries like India. However, in developed nations like UK, USA, Canada and other parts of Europe, gluten-free foods have become quite popular. With a prevalence rate of about one in 100 - 133 people worldwide, celiac disease is widespread across the globe and life-long consumption of gluten-free food is recommended treatment for this allergy. Apart from celiac-disease patients, gluten-free foods are also consumed by health conscious people for weight management and high protein diet and by the patients for diabetes, autism and food allergies. Apart from gluten-free flour, biscuits, cookies and snacks, product innovations like gluten-free beers are becoming very popular. Big data including online blogs, articles, and reviews have played a major role in increased sales of gluten-free foods. Thus, analysis of editorial and social media content becomes essential to understand the leading trends in gluten-free foods. This study provided deep insights about positive, negative and neutral sentiments related to gluten-free foods using the data from Perspectory Media Insights and Google Trends. This study also revealed that most of the consumers talked and expected product innovation in food sections like snacks, fast food (pizza, pasta and noodles) and desserts through comments on social and editorial media. Searches were divided into developed (e.g., U.S.A.) and developing nations (e.g., India) to get more details about the consumer preferences. This study would help manufacturers of gluten-free foods to develop food products according to the choices and preferences of consumers. The study is very unique in itself since it combines big data to niche food market of gluten-free foods to draw the valuable consumer preferences using online platforms.
基金the National Natural Science Foundation of China (71173225 and 71272033)
文摘Stakeholders in the field of food safety management in China can be classified into three categories, government, food producers （farmers and enterprises）, and the third-party regulatory bodies. The third-party regulation has experienced rapid development in past twenty years, and recently received considerable attention from consumers and the central government. This paper provides a review about the development, problems and future trend of the third-party regulation on food safety in China. To be specific, five forms of the third-party regulation are assessed, including media exposure, the third-party certification, regulation by consumer associations, social movements promoted by non-governmental organiza- tions （NGOs）, and regulation by industry associations. The study concludes that media and consumer associations are the major players in the third-party regulation and are highly repudiated among customers. The food certification industry has developed rapidly, but is now facing crises of confidence among consumers because of its lack of self-regulation. NGOs and industry associations still remain in the early development stages of food safety management, and therefore, are of little importance in current regulatory bodies.
文摘This paper explores news coverage in two media: print and electronic. The discourse analysis represents differences in general structure,images attached,and texts of specific print and electronic media.
文摘为保证原料乳质量,丰富检测原料乳中大肠菌群涉及到的培养基的验收质控菌株,采用GB 4789.28—2013《食品安全国家标准 食品微生物学检验 培养基和试剂的质量要求》中规定的验收方法,分别选取3个品牌的结晶紫中性红胆盐琼脂(violet red bile agar,VRBA)、结晶紫中性红胆盐-4-甲基伞形酮-β-D-葡萄糖苷琼脂(violet red bile agar with MUG,VRBA-MUG)、月桂基硫酸盐胰蛋白胨肉汤(lauryl tryptose broth,LST)和煌绿乳糖胆盐肉汤(brilliant green lactose bile broth,BGLB),对其进行外观、pH值、水分含量等物理指标以及生长率、选择性等微生物指标实验评价。同时以弗式柠檬酸杆菌ATCC 43864为参照,选取7株弗式柠檬酸杆菌对3个品牌的VRBA、VRBA-MUG、LST和BGLB进行验收实验评价。结果表明:3个品牌的不同培养基干粉颜色均正常,水分含量均控制在5%~6%,pH值均符合国家标准;7株弗氏柠檬酸杆菌在3个品牌VRBA、VRBA-MUG上的生长率均大于0.7;仅CMCC 48098和CICC 22910在3个品牌的LST、BGLB中浊度达到2,且导管内产生气体,与ATCC 43864结果相同。综上,3个品牌的VRBA、VRBA-MUG、LST和BGLB全部符合GB 4789.28—2013,推荐CMCC 48098和CICC22910用作验收4个培养基质控菌株的补充菌株。
