Research Publications (Food Safety)

Author(s): Gomaa R.M. Ramadan, Samir A.M. Abdelgaleil, Mohamed S. Shawir, Ahmed S. El-bakary, Peter A. Edde, Thomas W. Phillips

Author(s): Taise Raquel Bechlin, Suian José Granella, Divair Christ, Silvia Renata Machado Coelho, Clair Aparecida Viecelli

Author(s): Sumistha Das, Annu Yadav, Nitai Debnath

Author(s): Jennifer Jelk, Vreni Balmer, David Stibal, Federico Giannini, Georg Süss-Fink, Peter Bütikofer, Julien Furrer, Andrew Hemphill

The effect of gamma-irradiation on sensory characteristics, physicochemical, parameters, and shelf life of Camarosa strawberries stored under refrigeration was investigated for a period of 20 days. Strawberries were exposed to gamma-irradiation at dose levels of 0.5 and 1.0 kGy.

Paralytic shellfish poisoning (PSP) toxin is widely contained in seafood and its product. It brings great harm to human health when people eat it. During the past two decades, shellfish toxin quantitative analysis methods develop fast, such as mouse bioassay (MBA), chemical analysis method, immunoassay and cell-based assay (CBA). However, there are some disadvantages in these analytical methods such as time consuming, high cost. Therefore, a more suitable method is in demand.

This study was carried out to evaluate the impact of gamma irradiation and turmeric powder (TP) on microbial quality (total aerobic bacteria and coliforms), physicochemical quality (pH, Hunter’s parameter, oxidative and microbial stabilities, haem pigment), stability, and antioxidant status of chicken meat. Accordingly, two doses (1 kGy and 2 kGy) of gamma irradiation alone and in combination with 3% TP along with the control (0 kGy) were applied.

To be commercialized and grown in the US, genetically engineered (GE) crops typically go through an extensive food, feed, and environmental safety assessment process which, in certain instances, requires complex consultations with three different US regulatory agencies. Many small market, niche, and specialty crops have been genetically engineered using the modern tools of recombinant DNA but few have been commercialized due to real or perceived regulatory constraints.

A rapid, ultra-sensitive and simple fluorescence immunoassay (FLISA) on CdSe/ZnS Quantum dots (QDs) for recognition pesticide triazophos have been established. In this assay, the immunoassay uses (CdSe/ZnS) Quantum dots (QDs) as a probe that carries monoclonal antibody (mAb). The free triazophos and OVA-haptens were competed for binding the mAb on the surface of the QDs. Therefore, the concentration of TRIAZ can get by calculation of the detection of fluorescence value.

The hapten 1 which was formed by the reaction of 2-chloro-4,6-diamine-1,3,5-triazine (CAAT) with 6-aminocaproic acid, conjugated with keyhole limpet haemocyanin to prepare the immunogen. And coating antigen was prepared by the coupling of ovalbumin and hapten 2 which was synthesized by the reaction of CAAT and 3-mercapto propionic acid. Based on immunological and cell fusion technology, the anti-melamine monoclonal antibody was prepared and characterized.

In this study, we used 2-(diethexyphosphoryl)acetic acid as a common template molecule and Fe3O4@SiO2 as support material to prepare a superparamagnetic core/shell molecular imprinting polymer (MIP), Fe3O4@SiO2@MIP, which has multiple recognition sites and increased adsorption capacity.

Bayberries are important sources of phytochemicals. In this paper, the active substances of bayberry extract (BE) were investigated, and based on this, the inhibitory effects of BE on the six tested food-borne pathogens were futher evaluated. Finally, the main antibacterial components in the extracts were identified by UV-Vis absorption spectroscopy, UPLC-UV spectrum and UPLC-ESI-MS.

We performed a literature search for English research papers, published between 2013 and 2018, reporting on plasmid‐mediated carbapenem resistance. A rise in both carbapenemase types and associated plasmid replicon groups was seen, with China, Canada, and the United States recording a higher increase than other countries.

Female sex workers (FSWs) in India experience unmet health‐care needs due to numerous barriers to care. The objectives of this study were to (i) explore the health concerns among FSWs in Kamathipura, a red‐light district of Mumbai, India; and (ii) understand their experiences using health‐related services and resources. This qualitative study used in‐depth, semi‐structured individual interviews with 15 FSWs recruited using snowball sampling.

In a recent article in this journal, Luby, Polasky, and Swackhamer come to the provocative conclusion that urban water prices in the United States are “cheaper when drier.” They also argue that utilities fail to provide affordable water and that they charge less for “additional” use compared to “essential” use. We challenge these claims.

We propose a time series modeling approach based on nonlinear dynamical systems to recover the underlying dynamics and predictability of streamflow and to produce projections with identifiable skill. First, a wavelet spectral analysis is performed on the time series to identify the dominant quasiperiodic bands. The time series is then reconstructed across these bands and summed to obtain a signal time series.

Phase five of the Coupled Model Intercomparison Project enabled a range of decadal modeling experiments where climate models were initialized with observations and allowed to evolve freely for 10–30 years. However, climate models struggle to realistically simulate rainfall and the skill of rainfall prediction in decadal experiments is poor.

ABSTRACT Food contamination is responsible for thousands of deaths worldwide every year. Plants represent the most common pathway for chemicals into the human and animal food chain.

For several years, poultry production in Egypt has been suffering from co‐circulation of multiple respiratory viruses including highly pathogenic avian influenza virus (HPAIV) H5N1 (clade 2.2.1.2) and low pathogenic H9N2 (clade G1‐B). Incursion of HPAIV H5N8 (clade 2.3.4.4b) to Egypt in November 2016 via wild birds followed by spread into commercial poultry flocks further complicated the situation.

The purpose of this study was to evaluate the prevalence of caprine brucellosis in herds of a region called “The Impenetrable” in Chaco Province, Argentina, in order to prevent the occurrence of the disease in people consuming goat milk. This was needed because of high levels of child malnutrition and difficulties in having access to high quality protein in this region.

The first human case of zoonotic H7N9 avian influenza virus (AIV) infection was reported in March 2013 in China. This virus continues to circulate in poultry in China while mutating to highly pathogenic AIVs (HPAIVs). Through monitoring at airports in Japan, a novel H7N3 reassortant of the zoonotic H7N9 HPAIVs, A/duck/Japan/AQ‐HE30‐1/2018 (HE30‐1), was detected in a poultry meat product illegally brought by a passenger from China into Japan.

Since 2013, H5N6 highly pathogenic avian influenza viruses (HPAIVs) have been responsible for outbreaks in poultry and wild birds around Asia. H5N6 HPAIV is also a public concern due to sporadic human infections being reported in China. In the current study, we isolated an H5N6 HPAIV strain (A/Muscovy duck/Long An/AI470/2018; AI470) from an outbreak at a Muscovy duck farm in Long An Province in Southern Vietnam in July 2018 and genetically characterized it.

Brucellosis is a highly contagious zoonosis affecting humans and a wide range of domesticated and wild animal species. An important element for effective disease containment is to improve knowledge, attitudes and practices (KAP) of afflicted communities. This study aimed to assess the KAP related to brucellosis at the human–animal interface in an endemic area of Egypt and to identify the risk factors for human infection.

Since 2014, H5 highly pathogenic avian influenza viruses (HPAIVs) from clade 2.3.4.4 have been persistently circulating in Southern China. This has caused huge losses in the poultry industry. In this study, we analysed the genetic characteristics of seven H5N6 HPAIVs of clade 2.3.4.4 that infected birds in Southern China in 2016. Phylogenetic analysis grouped the HA, PB2, PA, M and NS genes as MIX‐like, and the NA genes grouped into the Eurasian lineage.

Clostridium difficile is considered the leading cause of antibiotic‐associated disease worldwide. In the past decade, a large number of studies have focused on identifying the main sources of contamination in order to elucidate the complete life cycle of the infection. Hospitals, animals and retail foods have been considered as potential vectors.