Research Publications (Food Safety)

Journal of Food Safety, EarlyView. The inadequate food safety knowledge of street food vendors has proved to be an obstacle in ensuring the safety of street food. The aim of this study was to assess the food safety knowledge of street food vendors in Johannesburg, South Africa, and to evaluate both the compliance of their street food vending facilities with food safety regulations and the monitoring of these facilities.

Journal of Food Safety, EarlyView. Forsythoside A is used as the main chemical marker for quality control of Forsythia suspensa (Thunb.) Vahl (F. suspensa, Lianqiao in Chinese) fruits and leaves. The hydrolysis of forsythoside A at high temperature and effects of deep eutectic solvents (DESs) on stability of forsythoside A were studied in the article. Forsythoside A, I, and H may be directly converted into each other at high temperature.

Journal of Food Safety, EarlyView. Commiphora wightii based bioactive edible film was developed for the preservation of meat products. Maltodextrin and alginate-based edible films were developed using different levels of C.

Journal of Food Safety, EarlyView. The aim of this study was to develop a portable electronic nose (e‐nose) system for the rapid and convenient detection of saponin in submerged fermentation of Tremella aurantialba (T. aurantialba) in situ. The system was built using hardware and software systems. The hardware system consisted of a gas path module and a circuit module, and the software framework provided a friendly human–computer interface and multivariate computational tools.

Journal of Food Safety, EarlyView. This paper aims to create a new hybrid ensemble data mining model to predict the Salmonella presence in agricultural surface waters based on the combination of heterogeneous ensemble approach for feature selection, clustering, regression, and classification algorithms. The data set for this study was collected from six agricultural ponds in Central Florida consisting of 23 features with 540 instances (26 Salmonella positive and 514 Salmonella negative).

Journal of Food Safety, EarlyView. This article presents the release kinetics (RK) of a fungicidal antimicrobial agent (AMA), potassium sorbate (PS), that prolongs the shelf life of packaged food. The effects of PS release are explored on peanut and fresh bread to determine the effects of PS on Aspergillus niger (AN) microbe growth. The AN was cultured in a potato dextrose agar (PDA) medium to obtain AMA activity on the film.

Journal of Food Safety, EarlyView. Foodborne microbial diseases constitute major health concern and therefore it is necessary to preserve food products to prolong their shelf life and safety. Promising method of food preservation is application of volatile natural agents into modified atmosphere in food packaging. Spices and condiments containing volatile oils could potentially be used.

Journal of Food Safety, EarlyView. The potato processing industries generate substantial quantities of phenolic‐rich potato peels as waste by‐products that could be valuable natural sources of antimicrobials and antioxidants in food industry.

Journal of Food Safety, EarlyView. As farmers' markets have increased in size, scope, and complexity, so have potential food‐safety challenges and implications. Most products sold at farmers' markets may receive minimal to no treatment of decontamination which could increase their potential microbial risks. The aim of this study was to assess the prevalence and antimicrobial resistance (AMR) of foodborne pathogens in select fresh produce procured from farmers' markets in Central Virginia.

Journal of Food Safety, EarlyView. Despite the considerable importance of dairy consumption, aflatoxin‐M1 (AFM1) contamination can pose potential health threats for these products. In the present study, we systematically reviewed and conducted a meta‐analysis on the AFM1 contamination in yogurt samples of West Asia region.

Journal of Food Safety, EarlyView. From the first notification reporting to the WHO a cluster of coronavirus in Wuhan City (China), over 114 million cases of SARS‐CoV‐2 have been confirmed, with more than 2,530,000 deaths, and over 400,000 new cases and 10,000 deaths daily. Numerous viruses are susceptible to contaminate crops during growth, harvesting, handling, marketing and minimally processing, and these steps share one common factor which is human.

Journal of Food Safety, EarlyView. Salmonella enterica is an important foodborne pathogen. Its rapid and reliable detection in food is critical for the effective prevention of the outbreak of foodborne diseases. Here, we report a novel method for the rapid, specific, label‐free, and real‐time detection of S. enterica with biolayer interferometry (BLI) using an antibody as the receptor. The limit of detection for S. enterica in buffer was 1.6 × 105 CFU/ml at a binding time of 300 s.

Journal of Food Safety, EarlyView. Aflatoxin B1 is a mycotoxin that can be present in peanut‐based products, such as fried peanut biscuits, if Good Agricultural Practices are not respected. Impact of plant powder presence on aflatoxin B1 levels was investigated in contaminated peanut biscuits. It was observed that adding 2% of Moringa oleifera powder led to a significant (p < .05) reduction of the toxin after 3 hr of contact time in the dough before the frying step.

Journal of Food Safety, EarlyView. The research was designed to investigate the amount of aflatoxin B1 (AFB1) in animal feed (corn, wheat bran, peanut cake, soybean meal, and cotton seed meal) and aflatoxin M1 (AFM1) in raw milk of animals (cow milk, buffalo milk, goat milk and sheep milk), from Punjab, Pakistan collected March 2017 till February 2018. The samples were examined with liquid chromatography, with a fluorescence detector.

Journal of Food Safety, EarlyView. This study is to investigate the antibacterial activity of the alcoholic and hydroalcoholic extracts of Spinacia oleracea leaves, on Listeria monocytogenes (ATCC 7644), Salmonella enteritidis (ATCC 13076), Escherichia coli O157:H7 (NCTC 12900) and Pseudomonas aeruginosa (ATCC 15442), and to identify bioactive functional components including essential oil by GC–MS.

Journal of Food Safety, EarlyView. We present a quantum dots (QDs)‐based lateral flow immunoassay for the determination of pyrimethanil in fruit and vegetable samples. This QDs‐based strip immunoassay had a cut‐off value of 25 ng/ml, under optimal conditions; linear calibration for pyrimethanil was obtained in the range of 1.9–13.3 ng/ml. The entire sample detection operation could be completed in 30 min.

Journal of Food Safety, EarlyView. Cold storage coupled with gaseous ozone represents a potential strategy to reduce or inhibit the presence of pathogenic and spoilage bacteria in a food storage cold chamber. This study aims to evaluate the impact of gaseous ozone treatment (0.05 ppm at exposure times of 30 and 60 min) on the bacterial contamination of internal surface and air in a cold chamber (3°C) intended for food storage.

Journal of Food Safety, EarlyView. Listeria monocytogenes are pathogenic microorganisms and of particular concern in the poultry industry. They are frequently isolated from raw chicken products due to their ability to attach to a wide variety of food and food‐contact surfaces. The application of synthetic antimicrobial agents is often limited by potential emergence of antimicrobial resistance and regulations associated to organic poultry products.

Sensory evaluation, physicochemical indicator, and microbiological indicator of red bean curd storaged at different temperature were examined. In addition, biogenic amines (BAs) were also quantified using high‐performance liquid chromatography to determine their levels in red bean curd. The BAs content is the main factors affecting the safety of red bean curd products.

Haugh unit (HU) is an important freshness indicator of eggs. In order to detect HU nondestructively and rapidly, hyperspectral imaging (HSI) technology was employed in this study. A total of 350 newborn pink‐shell eggs were stored at 25°C and were measured every 3 days by HSI system in the spectral range of 401–1,002 nm. A method of combing leverage value with Cook's distance was used to eliminate outlier samples.

Mango (Mangifera indica L.) is a popular tropical fruit but also an allergenic source. In Taiwan, the packaging of any food product that contains mango must display an allergen warning. Therefore, establishing a reliable method for detecting mango residues in food products is important. In this study, a sandwich enzyme‐linked immunosorbent assay (sELISA) was developed to detect the major mango allergen Man i1.

In this study, the effects of apple polyphenols (AP) with chitosan (CS) coating on quality enhancement of large yellow croaker (Pseudosciaena crocea) during ice storage was assessed.

Commercial application of infrared (IR) heat has been hampered by a lack of readily available data adaptable to high‐throughput (HT) drying requirements in the grain processing industry. This study evaluated the effectiveness of a continuous flow IR heating system to simultaneously dry and decontaminate corn over various drying bed thicknesses (1.5, 2.7, and 4.5 cm).

A plant‐derived phenolic compound, namely 3‐p‐trans‐coumaroyl‐2‐hydroxyquinic acid (CHQA), has recently been reported to exhibit antibacterial and antibiofilm activities against Staphylococcus aureus. In this study, the combined transcriptomic and proteomic analyses was used to elucidate the molecular mechanism of CHQA against S. aureus. The results showed that subinhibitory concentration of CHQA induced wide and significant changes in S.

This study validated a typical batch commercial flour tortilla cooking process against Salmonella contamination. Tortilla dough prepared from flour inoculated with a 7‐serovar Salmonella cocktail was pressed in a dough press (preset at 200 °F [93.3°C]) for 3 s, then heated on a griddle (preheated to 221.1°C [430 °F]) for 30, 45 or 60 s on each side, followed by ~8 min of ambient air cooling. The maximum internal temperature of tortillas during cooking was >97°C for all cooking times.