Research Publications (Food Safety)

Journal of Food Safety, Volume 41, Issue 6, December 2021. Culture-based Salmonella isolation consists of nonselective pre-enrichment, followed by selective enrichment in Rappaport–Vassiliadis (RV) or tetrathionate (TT) broths, and subsequent plating on selective indicator agar. This study aimed to assess the recovery of two strains belonging to serovars Montevideo (strain ATCC-8387) and Typhimurium (strain ATCC-14028) when grown together in different media.

Journal of Food Safety, Volume 41, Issue 6, December 2021.

Journal of Food Safety, Volume 41, Issue 6, December 2021.

Journal of Food Safety, Volume 41, Issue 6, December 2021.

Journal of Food Safety, EarlyView.

Journal of Food Safety, EarlyView. Salmonella spp. and Escherichia coli are well tolerant of freezing.

Journal of Food Safety, EarlyView.

Journal of Food Safety, EarlyView. An edible polysaccharide film with high tensile strength and biodegradability was prepared by freeze–thaw treatment with sodium alginate (SA) and hyaluronic acid (HA) and cross-linking with calcium lactate. The SA/HA ratio, the calcium concentration, the number of freeze–thaw cycles, and the calcification time all have significant effects on the tensile strength of SA/HA films.

Journal of Food Safety, EarlyView. Salmonella spp. and Escherichia coli are well tolerant of freezing.

Journal of Food Safety, EarlyView. Healthy colonized cattle are the major reservoir of Shiga toxin–producing Escherichia coli (STEC) and play a key role in the entry point of the pathogen into the beef chain. Excretion rates and the concentration of the pathogen in feces influence the epidemiology and transmission of the pathogen within herds and to humans. This study evaluated the prevalence and dynamics of fecal shedding of STEC by cattle in a commercial feedlot in Gauteng, South Africa.

Journal of Food Safety, EarlyView. Squid ink is rich in abundant natural proteins, lipids, and minerals. The aim of this study was to investigate the influences of different types and contents of modified starch with different processes on the stability and fluidity of squid ink sauces.

Journal of Food Safety, EarlyView. Increasing concerns toward food safety and public health have rendered the use of synthetic chemicals in agricultural environments unacceptable. A shift toward biologically safe approaches has been considered a preferred strategy within the food handling chain and has received increasing attention over the past years in managing undesirable microbial growth.

Journal of Food Safety, EarlyView. Ultrafine bubble technology is a novel concept in food safety that can improve the potency of antimicrobials against biofilms. This study was conducted to evaluate the impact of gas (air, CO2, or N2) ultrafine bubbles incorporation in 100 and 200 ppm chlorine (Cl2) solutions to inactivate fresh Listeria monocytogenes biofilms on stainless steel.

Journal of Food Safety, EarlyView. India is the largest producer and exporter of buffalo (Bubalus bubalis) meat in the world. But there are restrictions on the slaughter of cattle (Bos indicus/Bos taurus) and export of beef (cattle meat) from the country. This led to the incidences of misrepresentation of beef and other low cost meat as buffalo meat during export and hence necessitates reliable techniques for species authentication of buffalo meat.

Journal of Food Safety, EarlyView. The aim of the present study was to investigate the antimicrobial mechanism of oregano essential oil (OEO) against Shewanella putrefaciens. Antimicrobial activity of OEO against Shewanella putrefaciens was investigated by the agar disc diffusion method. The change of growth curve, electric conductivity, the integrity of cell membrane, alkaline phosphatase (AKP), and lactate dehydrogenase (LDH) activity were measured to evaluate its antibacterial mechanism.

Journal of Food Safety, EarlyView. Occurrences and contamination of Salmonella enterica on produce are a significant food safety issue. The objective of this research was to evaluate the effects of low-dose gamma radiation on survival and reductions of S. enterica on postharvest carrot and tomato. Irradiation treatments of 0–1 kGy were applied on produce, following pathogen inoculations in replicated experiments.

Journal of Food Safety, EarlyView. Tracking artificially seeded foodborne pathogens in foods with high background microbiota is challenging. Wheat flour and its subsidiary products are known to carry a high native microbial load, which could interfere with tracking and enumeration of target organisms in such matrices.

Journal of Food Safety, EarlyView. Data regarding ochratoxin A (OTA) and zearalenone (ZEA) contamination in feed in South China are limited. Here, we evaluated OTA and ZEA contamination in 514 poultry feed samples collected from South China. We validated a modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) method and the mycotoxins were quantified by high-pressure liquid chromatography–tandem mass spectrometry.

Journal of Food Safety, EarlyView. The dairy products have been reported as a source of extended-spectrum β-lactamase (ESBL)-producing bacteria. The aim of this study is to determine the potential transfer of ESBL Enterobacteriaceae to humans due to the consumption of buttermilk made from raw, unpasteurized milk collected in Batna province (Northeast of Algeria) as well as to identify isolates and genes encoding resistance in these isolates.

Journal of Food Safety, EarlyView. Black peppercorn is a common ingredient imported and used in uncooked or ready-to-eat foods in the United States. They might be exposed to fecal coliforms and other microbial contamination due to a lack of good agricultural and manufacturing practices in some developing countries under which they were grown and harvested, thus causing economic losses to the peppercorn industry in the United States.

Journal of Food Safety, EarlyView. This work investigated the antimicrobial activities of green tea (GT) at 5 and 10.0% wt/vol and peppermint oil (PP) at 0.1, 0.15, and 0.2% wt/vol against major pathogen bacteria (Escherichia coli, Salmonella enteritidis, and Staphylococcus aureus) found on eggs at room temperature (30°C).

Journal of Food Safety, EarlyView. Electron beam technology may be integrated into the fresh produce wash water line, as an advanced oxidation process (AOP). However, prior to implementation, effectiveness of the technology must be assessed. Hydroxyl radical scavengers were used to quantify the role of yield of hydroxyl radicals in inactivation of the selected pathogen in aqueous solution.

Journal of Food Safety, EarlyView. There is a growing consensus that plant-derived antimicrobials may be a safe and effective alternative to synthetic chemical preservatives against foodborne pathogens. This study aims to investigate the potential application of the stems and leaves of Astragalus membranaceus (AMSL) in food preservation.

Journal of Food Safety, EarlyView. Green thin films for food packaging are essential and growing in recent years to reduce the dependence on petroleum-derived plastics. In this study, the glycerol-plasticized chitosan film incorporated with 1–3% of crude Piper betel Linn.

Journal of Food Safety, EarlyView. This study develops a rapid lateral flow assay (LFA) that uses immunomagnetic nanoparticles (IMNPs) to detect mango major allergen (Man i1) in food products. Monoclonal antibodies (2F1 and 21A5) were prepared; mAb-2F1 was modified on the surface of IMNPs and mAb-21A5 was immobilized on the test line of the LFA strips. Following optimization, the limit of detection (LOD) of this developed LFA was 6.2 ng/mL for rMan i1 with a linear range of 5–100 ng/mL.