The recent COVID-19, a viral outbreak calls for a high demand for non-conventional antiviral agents that can reduce the risk of infections and promote fast recovery. Fermented foods and their probiotics bacteria have recently received increasing interest due to the reported potential of high antiviral activity. Several probiotics strains demonstrated broad range of antiviral activities and different mechanisms of action. This article will review the diversity, health benefits, interaction with immune system and antiviral activity of fermented foods and their probiotics bacteria. In addition, the mechanisms of action will be reviewed to determine the broad range potential antiviral activity against the respiratory and alimentary tracts viruses. The probiotics bacteria and bioactive compounds in fermented foods demonstrated antiviral activities against respiratory and alimentary tracts viruses. The mechanism of action was reported to be due to the stimulation of the immune system function via enhancing natural killers cell toxicity, enhance the production of pro-inflammatory cytokines, and increasing the cytotoxic of T lymphocytes (CD3+, CD16+, CD56+). However, further studies are highly recommended to determine the potential antiviral activity for traditional fermented foods.
The COVID-19 pandemic has altered consumers' relationship with food, whether through shopping, increased home cooking, taking pre-cautionary measures during food shopping, food delivery and whilst dining out. This study aims to examine the impact of COVID-19 pandemic on consumers' food safety knowledge, attitude and practices and to identify the predictors of food safety practices during COVID-19. An online survey was conducted and received valid responses from 987 respondents. Data were analysed using descriptive statistics, non-parametric tests, Spearman's rho correlation and multiple regression. The Theory of Planned Behaviour (TPB) model was used to investigate the intention to practice safe eating out measures during COVID-19. The mean food safety knowledge score was 6.37 ± 1.37 (9.00 = highest score) of which 91.3% of total respondents from Indonesia and Malaysia scored ≥5 points. Consumers also demonstrated positive food safety attitude (4.06 ± 0.99) and reported high frequencies in conducting food safety practices (4.03 ± 0.82) during COVID-19. The TPB has provided valuable framework for understanding consumers' intention to practice safe eating out measures during COVID-19. The multiple regression model explained 63% and 73% of the variance in adherence to safe eating out practices in Indonesia and Malaysia and (p
The threat of COVID-19 has altered consumers shopping behaviour and increased consumers' willingness to purchase food using online food delivery services. Consumers were more likely to practice strict hand hygiene measures and were concerned with food safety. Such behaviours were likely driven by the fear and threat of contracting COVID-19. This study aims to use Protective Motivation Theory (PMT) to investigate how COVID-19 affects food shopping and food safety behaviour. An online, cross-sectional study was conducted in Indonesia and Malaysia to determine the protective motivation to engage in three food shopping and hygiene practices such as i) Safe food shopping behaviour; ii) Hand hygiene and avoiding cross contamination; and iii) Use of online food delivery services. Data were analysed using descriptive statistics, Spearman rho's correlation and binary logistic regression. A total of 1180 responses were received of which 1129 were valid. Gender was identified as a significant predictor across all food safety behaviours during COVID-19. Response efficacy and self-efficacy were significant predictors for food shopping behaviour while perceived severity significantly predicted hand hygiene practices after shopping. Age, frequency of food preparation and shopping, perceived severity, perceived vulnerability, response efficacy and self-efficacy were significant predictors for use of online food delivery services. Our findings suggest that women were more likely to engage in protective measures during food shopping, carry out hand hygiene practices after shopping and use online food delivery services during COVID-19. Participants with higher response and self-efficacy scores were more likely to shop from markets or shops with high hygiene standards while participants who perceived COVID-19 as a serious threat were more likely to clean and sanitise their hands after shopping. Participants also believed that the use of online food delivery services helps to reduce the risk of COVID-19 infection. However, foods should be purchased from trusted restaurants or takeaways. This is the first study to use Protection Motivation Theory to explore consumers' food shopping, hand hygiene and online food delivery practices during COVID-19.