Research Publications (Food Safety)

In vitro experimental evolution of pathogens to antibiotics is commonly used for the identification of clinical biomarkers associated with antibiotic resistance. Microdroplet emulsions allow exquisite control of spatial structure, species complexity, and selection microenvironments for such studies. We investigated the use of monodisperse microdroplets in experimental evolution.

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.

Humans are exposed to a broad range of organic chemicals. Although targeted gas chromatography mass spectrometry techniques are used to quantify a limited number of persistent organic pollutants and trace organic contaminants in biological samples, nontargeted, high-resolution mass spectrometry (HRMS) methods assess the human exposome more extensively.

Occupational exposures to volatile organic compounds (VOCs) have been associated with numerous health complications including steatohepatitis and liver cancer. However, the potential impact of environmental/residential VOC exposures on liver health and function is largely unknown. To address this knowledge gap, the objective of this cross-sectional study is to investigate associations between VOCs and liver injury biomarkers in community residents.

Neurotoxicity is a principal concern in nonclinical drug development. However, standardized and universally accepted fluid biomarkers for evaluating neurotoxicity are lacking.

by Armin Tarrah, Shadi Pakroo, Milena Carlot, Camilla Nesto, Antonella Cirillo, Angiolella Lombardi, Viviana Corich, Alessio Giacomini

Author(s): Ning-Xia Xiong, Jie Ou, Shi-Yun Li, Jia-Hui Zhao, Jin-Fang Huang, Ke-Xin Li, Sheng-Wei Luo, Shao-Jun Liu, Ming Wen, Chang Wu, Shi Wang, Kai-Kun Luo, Fang-Zhou Hu, Qing-Feng Liu

Author(s): Madison Willy Silva Cordeiro, Diego Michel Matochi Mouro, Ingrid Duarte dos Santos, Roger Wagner

Author(s): Huanyu Yang, Zhiping Sun, Xinguang Qin, Hongyuan Wu, Haizhi Zhang, Gang Liu

Author(s): J. Lee, S. Roux, E. Le Roux, S. Keller, B. Rega, C. Bonazzi

Author(s): Yu-Nan Lu, Yanke Shan, Huachuan Huang, Lin Zhu, Baojie Li, Shouyu Wang, Fei Liu

Author(s): Wanqiang Wang, Wenzheng Tang, Xiaoping Wang, Wen Liu, Fen Zhu

Author(s): Baigang Zhang, Chenghui Huang, Qikun Lu, Dongmei Xu, Hairong Liang, Jinliang Li

Polycyclic aromatic hydrocarbons (PAHs) are harmful to the health of people and other organisms due to their high toxicity, difficult degradation, and wide distribution. At present, the removal of PAHs from the environment is still an urgent challenge. In this study, silica-coated magnetic nanoparticles were conjugated with DNA and then used to remove 1, 2-benzoanthracene (BaA) from aqueous solution due to the intercalation between BaA and DNA.

Journal of Food Processing and Preservation, Accepted Article. The effect of microwave power levels, frying time and temperature on mass transfer and acrylamide formation during deep-fat frying of carrot slices were determined. Maximum and minimum moisture loss were measured respectively in the control (fried at 170°C for four minutes) and samples pretreated with microwave at 7W/g power and fried at 150°C for two minutes.

Journal of Applied Microbiology, Accepted Article. To characterize the genetic relatedness, phenotypic and genotypic antimicrobial resistance and plasmid content of 80 S. Infantis strains isolated from food, humans and veterinary sources from 2013 to 2018 in Brazil.

This study aimed to investigate the prevalence of fosfomycin fosA7 in Salmonella enterica isolates from food animals and retail meat products in China and the impact of fosA7 on bacterial fitness. A total of 360 Salmonella isolates collected from 11 provinces and cities in China were detected for fosA7. All fosA7-positive Salmonella isolates were determined minimum inhibitory concentrations (MICs) and sequenced by Illumina Hiseq. The fosA7 gene of S. Derby isolate HA2-WA5 was knocked out.

Author(s): Esmaeel Abbasi, Mohammad Hashem Yousefi, Seyedenayat Hashemi, Saeid Hosseinzadeh, Amir Hossein Ghadimi, Maryam Safapour, Abdulrahim Azari

Author(s): Barun Yadav, M.S. Roopesh Salmonella, a foodborne pathogen, has been frequently associated with recalls of fresh food products, including poultry meat products. Atmospheric cold plasma (ACP) is a novel non-thermal technology, which has potential to reduce pathogens in food products.

This review (with 126 references) aims at providing an updated overview of the recent developments and innovations of the preparation and application of magnetic nanoparticles for food safety analysis. During the past two decades, various magnetic nanoparticles with different sizes, shapes, and surface modifications have been designed, synthesized, and characterized with the prospering development of material science.

Fusarium verticillioides is pathogenic to maize and mycotoxin-producer, causing yield losses, feed and food contamination, and risks to human and animal health. Endophytic (ISD04 and IPR45) and epiphytic (CT02 and IM14) bacteria from maize silks were tested in vitro and greenhouse against F. verticillioides and for hydrolytic enzyme production (cellulase, pectinase, protease, lipase, and chitinase).

Fish gut microbiota, encompassing a colossal reserve of microbes represents a dynamic ecosystem, influenced by a myriad of environmental and host factors. The current study presents a comprehensive insight into Sardinella longiceps gut microbiome using whole metagenome shotgun sequencing. Taxonomic profiling identified the predominance of phylum Proteobacteria, comprising of Photobacterium, Vibrio and Shewanella sp.

It is well-established that botulinum toxin (BT) injections improve quality of life in patients with postparalytic hemifacial spasm. Nevertheless, injection-related pain and contracture-related pain have not yet been studied. The primary objective of our study was to evaluate injection-related pain in patients with facial palsy sequelae, and to compare the standard technique (syringe) with the Juvapen device.

Botulism is a rare, sometimes fatal paralytic illness caused by botulinum neurotoxins. BAT® (Botulism Antitoxin Heptavalent (A, B, C, D, E, F, G)—(Equine)) is an equine-derived heptavalent botulinum antitoxin indicated for the treatment of symptomatic botulism in adult and pediatric patients.