Research Publications (Food Safety)

To improve upon understanding of the quality characteristics of dry‐aged pork, pork belly and arm shoulder were dry aged for 0, 7, 14, 21, and 28 days. Their physicochemical, free amino acids (FAAs) content, and microbiological analysis were performed to evaluate palatability and hygiene. After 28 days of aging, total FAAs content increased by 56.1% and 71.4% for pork belly and arm shoulder, respectively. The amount of individual FAAs increased, except for glutamine.

Streptococcus mutans is a common principal causative agent of dental caries. In this communication, we describe that the antibodies raised against purified dextransucrase effectively inhibited the growth of S. mutans. The purified enzyme showed 58-fold enrichment, 17.5% yield and a specific activity of 3.96 units/mg protein. Purified IgG fraction of the antibody showed significant affinity with the antigenic protein.

Salmonella is a major cause of foodborne illness throughout the world and has resulted in a serious of public health issues over the past decades. The conventional culture methods for Salmonella detection are laborious and time-consuming; thus a variety of new methods have been developed to enable rapid detection.

The combined effect of the 222‐nm krypton‐chlorine (KrCl) excilamp and ohmic heating for the inactivation of Listeria monocytogenes, Salmonella enterica serovar Typhimurium, and Escherichia coli O157:H7 in apple juice was investigated in this study. When ohmic heating and a KrCl excilamp were applied to apple juice simultaneously, the reduction level of E.

Salmonella enterica serovar Typhimurium (S. Typhimurium) is an important zoonotic pathogen in public health and food safety. The type III secretion system (T3SS) encoded by Salmonella pathogenicity island (SPI) is a sophisticated molecular machine that facilitates active invasion, intracellular replication, and host inflammation.

Author(s): Jiajia Wan, Jianping Guo, Zhaoxin Lu, Xiaomei Bie, Fengxia Lv, Haizhen Zhao

Author(s): D. James Bound, Pushpa S. Murthy, P.S. Negi, P. Srinivas

by Helen E. McNeil, Ilyas Alav, Ricardo Corona Torres, Amanda E. Rossiter, Eve Laycock, Simon Legood, Inderpreet Kaur, Matthew Davies, Matthew Wand, Mark A. Webber, Vassiliy N. Bavro, Jessica M. A. Blair

Author(s): Alexandra N. Bogomazova, Veronika D. Gordeeva, Ekaterina V. Krylova, Irina V. Soltynskaya, Ekaterina E. Davydova, Olga E. Ivanova, Alexander A. Komarov

Author(s): Belal J. Muhialdin, Hana Kadum, Mohammad Zarei, Anis Shobirin Meor Hussin

Author(s): Francisco López-Gálvez, Pilar Truchado, Juan A. Tudela, Maria I. Gil, Ana Allende

Author(s): S. Sevilla-Navarro, P. Catalá-Gregori, C. García, V. Cortés, C. Marin

Author(s): Trond Møretrø, Lydia Martens, Paula Teixeira, Vânia B. Ferreira, Rui Maia, Tove Maugesten, Solveig Langsrud

Non‐typhoidal Salmonella (NTS) are a significant source of foodborne illness worldwide, with disease symptoms most often presenting as self‐limiting gastroenteritis; however, occasionally the infection spreads and becomes invasive, frequently requiring anti‐microbial treatment. The cattle‐adapted Dublin serovar of NTS has commonly been associated with invasive illness and anti‐microbial resistance (AMR).

Enzymatic treatment is capable of removing the biofilm matrix so that the subsequent disinfection can be more effective. Abstract Bacterial biofilms are highly difficult to control, hence significant economic resources have been allocated to develop strategies to eradicate them. This study evaluated the effect of an enzymatic treatment to be used as a cleaning product to control the presence of biofilms.

Aims This study evaluated the antimicrobial resistance of Salmonella enterica strains from layer poultry farms in central Ecuador isolated during 2017. This geographical area is responsible for around 60% of total domestic egg production, yet, as of 2019, no reports had been published on the phenotypic and genotypic antibiotic resistance patterns of Salmonella in the layer poultry farms of this area.

Author(s): Ghenwa Saleh, Nada El Darra, Samer Kharroubi, Mohammad T. Farran

Author(s): Anuj Purohit, Rakesh K. Singh, Anand Mohan

Community-onset bloodstream infections (CO-BSI) are major causes of severe febrile illness and death worldwide. In light of new data and the growing problem of antimicrobial resistance (AMR) among pathogens causing BSI, we undertook a systematic review of hospital-based studies of CO-BSI among patients hospitalized with fever.

The rapid emergence of multidrug resistance among bacterial pathogens has become a significant challenge to human health in our century. Therefore, development of next-generation antibacterial compounds is an urgent need. Two-component signal transduction systems (TCS) are stimulus-response coupling devices that allow bacteria to sense and elaborate adaptive responses to changing environmental conditions, including the challenges that pathogenic bacteria face inside the host.

Author(s): Eric D. Ebel, Michael S. Williams, Denise M. Amann

Concentration of free chlorine before and after 15 min of exposure to washing water added of lettuce residues for each sodium hypochlorite treatment. Abstract Salmonella spp. is one of the main lettuce pathogens and should be inactivated during the disinfection of these vegetables before consumption. In minimally processed vegetable industries, residues of organic matter can prevent the inactivation of this pathogen by disinfectants.

Aims: It is unclear how economic factors impact on the epidemiology of infectious disease. We evaluated the relationship between incidence of selected infectious diseases and economic factors, including economic downturn, in 13 European countries between 1970 and 2010. Methods: Data were obtained from national communicable disease surveillance centres.