Evaluation of food safety curriculum effectiveness: A longitudinal study of high-school-aged youths’ knowledge retention, risk-perception, and perceived behavioral control

The Yearlong Effect of COVID-19 on Food Safety: Consumer Practices and Perceptions Using Longitudinal Consumer Surveys and Focus Groups

Coronavirus disease 2019 (COVID-19) caused many consumers in the United States to change their perceptions and food handling practices at the height of the pandemic. We used a quantitative-qualitative mixed-method approach to assess consumers' risk perceptions and food safety practices during the COVID-19 pandemic. Nine waves of surveys were distributed to an online consumer panel over a 13-month period (April 2020-May 2021), and four waves of focus groups were conducted (May-July 2020 and June 2021). While the pandemic elevated peoples' perceptions of risks related to food safety practices, many consumers were reverting to past behaviors by May 2021. Participants asserted high confidence in their food safety measures; however, they perceived a low risk of contracting COVID-19 from food. Contrasts in food handling became apparent when assessing different age groups; observations revealed that practices in households with high-risk individuals differed significantly from those without. Although not recommended, the practice of washing produce with soap was consistent, predicting a possible continuation of this practice over time. This study highlights various factors that food safety educators and policymakers need to consider for effective communication about risks associated with food safety practices in preparation for pandemics and other major health events.

Recognition of food images based on transfer learning and ensemble learning

The recognition of food images is of great significance for nutrition monitoring, food retrieval and food recommendation. However, the accuracy of recognition had not been high enough due to the complex background of food images and the characteristics of small inter-class differences and large intra-class differences. To solve these problems, this paper proposed a food image recognition method based on transfer learning and ensemble learning. Firstly, generic image features were extracted by using the convolutional neural network models (VGG19, ResNet50, MobileNet V2, AlexNet) pre-trained on the ImageNet dataset. Secondly, the 4 pre-trained models were transferred to the food image dataset for model fine-tuning. Finally, different basic learner combination strategies were adopted to establish the ensemble model and classify feature information. In this paper, several kinds of experiments were performed to compare the results of food image recognition between single models and ensemble models on food-11 dataset. The experimental results demonstrated that the accuracy of the ensemble model was the highest, reaching 96.88%, which was superior to any base learner. Therefore, the convolutional neural network model based on transfer learning and ensemble learning has strong learning ability and generalization ability, and it is feasible and practical to apply the method to food image recognition.

Does Food Safety Knowledge Affect Attitudes and Practices? A Preliminary Study of Turkish Veterinary Students

This study aimed to evaluate effects of the food safety courses that veterinary medicine students take during their education at Kirikkale University, Turkey, on the students' food safety knowledge, attitudes, and practices. A questionnaire comprising demographic, knowledge, attitudes, and practices sections was developed, and eight experts performed the clarity test. The questionnaire was pilot-tested by 35 students. The final questionnaire was conducted among Kirikkale University first-year (freshmen) and fifth-year (senior) veterinary medicine students (n = 224). According to logistic regression analysis results, seniors were 2.8 times more likely than freshmen to have high-level knowledge. However, regardless of students' grades, knowledge level was not observed to correlate with students' behaviors. Additionally, no significant relation was found between knowledge level and gender, food safety career plan, or food poisoning experience (p > .05). Conspicuously, students who lived in a village before entering university were 5.3 times more likely to have high-level knowledge than those who lived in a city center. Overall, this study shows that food safety courses in the curriculum lead to an increase in students' level of food safety knowledge. However, although an increase in knowledge level positively influenced food safety attitudes, students had problems putting their knowledge and attitudes into practice. This may be overcome by focusing on practical courses that teach students how to apply learned knowledge in daily life.

Determination of Pork Meat Storage Time Using Near-Infrared Spectroscopy Combined with Fuzzy Clustering Algorithms

The identification of pork meat quality is a significant issue in food safety. In this paper, a novel strategy was proposed for identifying pork meat samples at different storage times via Fourier transform near-infrared (FT-NIR) spectroscopy and fuzzy clustering algorithms. Firstly, the FT-NIR spectra of pork meat samples were collected by an Antaris II spectrometer. Secondly, after spectra preprocessing with multiplicative scatter correction (MSC), the orthogonal linear discriminant analysis (OLDA) method was applied to reduce the dimensionality of the FT-NIR spectra to obtain the discriminant information. Finally, fuzzy C-means (FCM) clustering, K-harmonic means (KHM) clustering, and Gustafson–Kessel (GK) clustering were performed to establish the recognition model and classify the feature information. The highest clustering accuracies of FCM and KHM were both 93.18%, and GK achieved a clustering accuracy of 65.90%. KHM performed the best in the FT-NIR data of pork meat considering the clustering accuracy and computation. The overall experiment results demonstrated that the combination of FT-NIR spectroscopy and fuzzy clustering algorithms is an effective method for distinguishing pork meat storage times and has great application potential in quality evaluation of other kinds of meat.

Investigating the Impact of Green Marketing Components on Purchase Intention: The Mediating Role of Brand Image and Brand Trust

This research examines the impact of green marketing and its factors on purchase intention through green brand trust and image. It examines the correlation between six concepts: green knowledge, environmental attitude and knowledge, green image, green trust, and purchase intention. An empirical survey was used to test the hypotheses. Data were collected from a total of 300 respondents from Pakistan, and structural equation modeling (SPSS-AMOS) is proposed to assess the relationships of the research model. The findings show a significant positive association between practical green marketing approaches (green knowledge, attitude, environmental knowledge, and purchase intention for green products); additionally, green products with high ecological qualities create a positive intention towards consumer choice. Furthermore, green marketing approaches (green knowledge, attitude, and environmental knowledge) directly and significantly influence green image and trust. This study suggests that green approaches can be used as a brand marketing strategy to enhance customer purchase intention. The study also found that green marketing can help brands achieve and maintain brand equity. This research explores the relationship between the multidimensional green marketing approaches (green knowledge, attitude, and environmental knowledge) to enhance the purchase intention of green products; the creation of an overpowering market brand was one of its primary objectives. This study offers managerial implications for the development of green firms.

An Evaluation of a Virtual Food Safety Program for Low-Income Families: Applying the Theory of Planned Behavior

Low-income families are reported to have a limited knowledge of food safety and resources to follow food safety practices compared with the rest of the population. This paper evaluated a virtual food safety educational program targeting food handlers in low-income families. Trained native speakers of English and Spanish delivered course materials in both languages. A total of 60 individuals participated in the program, with 30 participants in each language group. Most were female, and most had fewer than three children. After the program, participants’ food safety knowledge and self-reported safe food practice behavior scores increased significantly from 5.32 to 7.43 (out of 8.00) and from 24.78 to 29.30 (out of 35.00), respectively. The theory of planned behavior (TPB) was used to understand individuals’ behavior change intention of food safety practices. All the TPB constructs’ scores, including attitudes toward the behavior, perceived behavioral control, subjective norms, and behavior change intentions, were improved significantly; however, only the subjective norms and perceived behavioral control were significantly correlated with the behavior change intentions. This virtual educational program improved low-income individuals’ food safety knowledge and changed their food safety attitudes and behaviors, giving a path to develop and evaluate more virtual food safety educational programs in the future.

Consumer risk perception and trusted sources of food safety information during the COVID-19 pandemic

Risk perceptions and trusted sources of information may have influenced consumer food handling practices during the COVID-19 pandemic. This study used a mixed-method qualitative-quantitative approach to assess consumer risk perception and trusted sources of food safety information during the pandemic. From April to August of 2020, five waves of online surveys (N = 3,584, with a minimum of 700 per month) were distributed to a U.S. consumer panel, which included only primary food preparers and grocery shoppers. The online focus groups recruited participants (N = 43) from the first wave of survey respondents and were conducted via Webex from May to July 2020. Topics covered in both studies focused on food safety risk perceptions and trusted sources of information during the pandemic. Trusted sources of information included government agencies, healthcare professionals, scientists, and social media. Throughout the longitudinal study, survey respondents and focus group participants perceived a higher risk of getting COVID-19 from people than from food. Survey respondents believed that handwashing could protect them more from COVID-19 than from foodborne illnesses. Many focus group participants practiced handwashing to prevent them from contracting COVID-19 from food items. Both survey respondents and focus group participants trusted the U.S. Food and Drug Administration (FDA), the Centers for Disease Control and Prevention (CDC), and healthcare professionals for COVID-19 and food safety information. Focus group participants trusted these entities because they provide information that is "scientifically proven." Survey data for all five months reported social media to be the least-trusted source of both COVID-19 and food safety information. Focus group participants agreed that social media has "misinformation." The findings suggest that increased risk perception may have caused consumers to adopt good hand hygiene. However, consumers may not be connecting such practices to food safety. Food safety educators can use this time of heightened risk perception to connect COVID-19 and food safety practices. Trusted entities of information also need to be aware of their impact on consumer behavior and provide consumers with proper food safety information.

Use of Mobile Grocery Shopping Application: Motivation and Decision-Making Process among South Korean Consumers

With the revitalization of the online grocery trading market, many consumers are using mobile applications to purchase groceries. Although past studies were conducted on online grocery purchases, few measured mobile app users in a conceptual model that combines both motivational needs and behavioral components. Grounded in the uses and gratifications theory and the theory of planned behavior, this study investigated utilitarian motives, hedonic motives, experiential motives, attitudes, subjective norms, perceived behavioral control, purchase intention, and purchase behavior among mobile grocery app users in South Korea. As an additional analysis, a comparison between users and non-users of mobile grocery apps was implemented. The results showed that the utilitarian motives of grocery app users significantly influenced attitudes, attitudes and subjective norms influenced user intention, and user intention influenced grocery purchase behavior. Users showed statistically higher utilitarian motives, hedonic motives, and attitudes than non-users. The results suggest that South Korean consumers hold positive attitudes toward mobile grocery shopping and that the opinions of others may influence the decision to use the services. Mobile groceries in South Korea may have the potential for continued growth if individuals’ perceived control of the service improves. Implications and suggestions for future research are discussed.

Food Handling Practices in the Era of COVID-19: A Mixed-Method Longitudinal Needs Assessment of Consumers in the United States

ABSTRACT

At present, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has not been shown to be transmitted through food. Even so, the coronavirus disease 2019 (COVID-19) pandemic has changed how consumers view food and food safety. This study assessed consumer food safety practices during the COVID-19 pandemic using (i) surveys and (ii) online focus group discussions. From April to August 2020, five waves of surveys were distributed to an online U.S. consumer panel and screened to include only primary food preparers and grocery shoppers. The online focus groups were conducted via WebEx from May to July 2020. Focus group participants were recruited from the first wave of survey respondents. Both survey respondents and focus group participants reported higher levels of hand washing in response to the pandemic. However, survey participants' anticipated levels of hand washing after the pandemic decreased; some focus group participants noted that human nature "kicking in" could lead to lower levels of hand hygiene practice. For each of the 5 months, the surveys reported increased produce washing, both with water only and with water plus soap. Most focus group participants mentioned using water to wash their produce, but some reported using soap and even vinegar to "kill" the virus. Since consumers were worried that SARS-CoV-2 could survive on food, they started to mishandle food to address these concerns. However, this study also reported an increase in food thermometer use during the pandemic. Social determinants like gender, income, education, and age may have also influenced changes in levels of practice throughout the pandemic. The COVID-19 pandemic drove consumers to practice proper and improper food safety practices, which may or may not continue after the pandemic. This study's findings provide timely information to guide future food safety education and communication during health crises and pandemics.

HIGHLIGHTS

Moving Forward to the Future: A Review of Microbial Food Safety Education in China

Millions of foodborne illness cases occur in China annually, causing significant social and economic burdens. Improper food handling has been observed not only among commercial food handlers but also among residential food handlers. It is critical to conduct a comprehensive scoping review of previous efforts to identify food safety knowledge gaps, explore the factors impacting knowledge levels, and synthesize the effectiveness of all types of food safety educational interventions for commercial and residential food handlers in China. This review aims to analyze food safety education studies published over the past 20 years and provide foundations for developing more effective food safety educational interventions in China. A total of 35 studies were included in this review. Most studies reported that Chinese commercial and residential food handlers had insufficient food safety knowledge, especially in the areas of foodborne pathogens and safe food-handling practices. The factors impacting food handlers' knowledge levels included education level, gender, income level, residency (rural vs. urban), the use of WeMedia, college students' major, and food safety training experiences. Food handlers in the following demographic groups tend to have lower levels of food safety knowledge: lower education levels, the elderly, males, lower-income levels, rural residents, those who do not use WeMedia, those without food safety training experience, or college students in nonbiology-focused majors. Many food handlers did not always follow recommended food safety practices, such as proper meat handling practices, handwashing practices, and cleaning and sanitation practices. Thirteen studies evaluated the effectiveness of educational interventions, and knowledge increases were reported after all interventions. The findings of this review provide guidance to researchers, educators, and government agencies in their future efforts to develop education programs emphasizing the importance of microbial food-safety content and behavior change regarding food safety and hygiene practices.

Can Security and Safety Education Support Sustainability? Lessons Learned from Poland

The aim of the article is to prove that sustainable development goals can be supported by security and safety education, where security refers to the state of being free from danger or threats and safety applies to creating protection from risks or dangers. This kind of education, which is obligatory in Polish schools, encompasses interdisciplinary knowledge and universal values focusing on improvement of human existence through minimisation of threats. Through the Word Frequency Query, the most intense descriptors of security and safety education were distinguished and fitted within the framework of sustainable development goals. The obtained data were supported with literature analysis identified with relevant keywords in the Web of Science database. It was proved that security and safety education reflects the idea of sustainable development in a variety of aspects. Since common foundations were identified, it could be inferred that teaching security and safety is a great platform for promotion of sustainable development goals. Moreover, in countries where security and safety education is taught as a separate school subject, more cross-disciplinary sustainability issues should be implemented in the curricula and taught with the use of novel strategies and tools.

Optimistic Bias, Food Safety Cognition, and Consumer Behavior of College Students in Taiwan and Mainland China

The purpose of this paper is to investigate how optimistic bias, consumption cognition, news attention, information credibility, and social trust affect the purchase intention of food consumption. Data used in this study came from a questionnaire survey conducted in college students in Taipei and Beijing. Respondents in the two cities returned 258 and 268 questionnaires, respectively. Samples were analyzed through structural equation modelling (SEM) to test the model. Results showed that Taiwanese college students did not have optimistic bias but Chinese students did. The models showed that both Taiwanese and Chinese students' consumption cognition significantly influenced their purchase intention, and news attention significantly influenced only Chinese students' purchase intention. Model comparison analysis suggested significant differences between the models for Taiwan and mainland China. The results revealed that optimistic bias can be reduced in different social contexts as that of the Taiwan model and the mainland Chinese model found in this study were indeed different. This study also confirmed that people had optimistic bias on food safety issues, based on which recommendations were made to increase public awareness of food safety as well as to improve government's certification system.