How Consumers Respond to Food Safety Crisis: A Study of Peanut Butter and Egg Recalls on Consumer Behavior

2018 ◽  
Author(s):  
Yanwen Chen ◽  
Christopher D. Timmins
2021 ◽  
Vol 13 (1) ◽  
pp. 212-216
Author(s):  
Skunda Diliarosta ◽  
Arief Muttaqiin ◽  
Rehani Ramadhani

mBio ◽  
2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Atul K. Singh ◽  
Amanda M. Bettasso ◽  
Euiwon Bae ◽  
Bartek Rajwa ◽  
Murat M. Dundar ◽  
...  

ABSTRACT We investigated the application capabilities of a laser optical sensor, BARDOT (b acterial rapid detection using optical scatter technology) to generate differentiating scatter patterns for the 20 most frequently reported serovars of Salmonella enterica. Initially, the study tested the classification ability of BARDOT by using six Salmonella serovars grown on brain heart infusion, brilliant green, xylose lysine deoxycholate, and xylose lysine tergitol 4 (XLT4) agar plates. Highly accurate discrimination (95.9%) was obtained by using scatter signatures collected from colonies grown on XLT4. Further verification used a total of 36 serovars (the top 20 plus 16) comprising 123 strains with classification precision levels of 88 to 100%. The similarities between the optical phenotypes of strains analyzed by BARDOT were in general agreement with the genotypes analyzed by pulsed-field gel electrophoresis (PFGE). BARDOT was evaluated for the real-time detection and identification of Salmonella colonies grown from inoculated (1.2 × 102 CFU/30 g) peanut butter, chicken breast, and spinach or from naturally contaminated meat. After a sequential enrichment in buffered peptone water and modified Rappaport Vassiliadis broth for 4 h each, followed by growth on XLT4 (~16 h), BARDOT detected S. Typhimurium with 84% accuracy in 24 h, returning results comparable to those of the USDA Food Safety and Inspection Service method, which requires ~72 h. BARDOT also detected Salmonella (90 to 100% accuracy) in the presence of background microbiota from naturally contaminated meat, verified by 16S rRNA sequencing and PFGE. Prolonged residence (28 days) of Salmonella in peanut butter did not affect the bacterial ability to form colonies with consistent optical phenotypes. This study shows BARDOT’s potential for nondestructive and high-throughput detection of Salmonella in food samples. IMPORTANCE High-throughput screening of food products for pathogens would have a significant impact on the reduction of food-borne hazards. A laser optical sensor was developed to screen pathogen colonies on an agar plate instantly without damaging the colonies; this method aids in early pathogen detection by the classical microbiological culture-based method. Here we demonstrate that this sensor was able to detect the 36 Salmonella serovars tested, including the top 20 serovars, and to identify isolates of the top 8 Salmonella serovars. Furthermore, it can detect Salmonella in food samples in the presence of background microbiota in 24 h, whereas the standard USDA Food Safety and Inspection Service method requires about 72 h.


2021 ◽  
Vol 13 (21) ◽  
pp. 12218
Author(s):  
Zoltán Lakner ◽  
Brigitta Plasek ◽  
Gyula Kasza ◽  
Anna Kiss ◽  
Sándor Soós ◽  
...  

Academic research on food consumer behavior related to food safety has developed extremely rapidly in the last decades, and a sizable amount of knowledge has been accumulated in this interdisciplinary field. This information set, as big data, lends itself to bibliometric analysis. Based on the Web of Science database and on a statistical analysis of more than 26.6 thousand articles containing more than 3.4 million bibliometric pieces of information, the current article offers a systematic analysis of these statistical data. The dynamics of relevant publications show an exponential character. The field is dominated by researchers from welfare states; however, food safety is a more important problem in developing states. There are dynamic changes in the portfolio of journals, but Bradford’s law cannot be proven. The explanatory power of Lotka’s law has been decreasing, proving the de-concentration of relevant authors. Besides traditional disciplines like consumer science, food chemistry, microbiology, and technology, new disciplines, e.g., sociology, cultural anthropology, postmodern techniques, and the real-life study of consumer behavior, going beyond the application of traditional techniques, are gaining importance. There are three key challenges for further research: (1) contribution to a deeper understanding of inherent laws governing the food-consumer-environment system; (2) quantification of results for decision-makers to enhance the efficiency of policy preparation; (3) widening the scope of research in geographical terms, better involving the developing world, and in sociological terms, focusing on the specific needs of vulnerable groups.


2012 ◽  
Vol 2 (8) ◽  
Author(s):  
Mustafa Pllana ◽  
Halim Gjergjizi ◽  
Iliriana Miftari ◽  
Muje Gjonbalaj

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 594
Author(s):  
Michał Wiatrowski ◽  
Ewa Czarniecka-Skubina ◽  
Joanna Trafiałek

Street food plays an increasingly important role in the nutrition of the inhabitants of European cities. Our study aimed to analyze Polish consumers’ attitudes toward food offered in street food outlets, consumers’ eating out behavior, and the factors that determine their choice of meals from street food vendors. A survey was conducted of 1300 adult respondents who eat street food in Poland. The research enabled a detailed and comprehensive assessment of consumer behavior toward the use of street food outlets, as well as consumer opinions on vendors’ functioning, including hygiene and meals offered. Factors determining the frequency of street food consumption, preferred food types, and factors influencing the use of such outlets were identified. The most important factors were the quality of services and meals, personal preferences and price. Using cluster analysis, consumer profiles based on the types of street food outlets and food preferred were identified. Four main street food consumer preference profiles were identified: ‘burger-enthusiasts’, ‘kebab-enthusiasts’ and ‘ice-cream enthusiasts’, and ‘no specific-oriented consumers’. The Internet and social media were identified as information and promotion channels for this form of gastronomy. Results also revealed Polish consumer behavior and opinions about the food safety of street food in Poland. In summary, in Poland the habits of eating typical Polish homemade dishes is being replaced by eating meals in street food outlets, which can be classified as fast food. Increasing consumer knowledge and awareness of the quality and safety of street food may counteract improper hygiene practices of sellers.


2014 ◽  
Vol 46 (4) ◽  
pp. 559-573 ◽  
Author(s):  
Rafael Bakhtavoryan ◽  
Oral Capps ◽  
Victoria Salin

The effect of negative publicity on consumer demand for brands is examined in the context of recall of a peanut butter brand as a result of pathogen contamination. The recall was associated with negative impacts for the implicated brand and positive effects on the leading competitor brand. Consumers responded to the foodborne illness outbreak within three weeks. The case demonstrates that consumer response is an incentive for companies to prevent safety lapses and that the problems of one brand do not necessarily harm rivals within the category.


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