Research Publications (Food Safety)

We read with interest the Article by Yap Boum and colleagues,1 which brought significant insight into the importance of rapid diagnostic tests for SARS-CoV-2. Boum and colleagues provided useful information about the patterns of patient presentation. However, some important considerations lead us to suggest an improvement to the algorithm they describe in figure 2A.1 Our feeling is that the clinical context for the suspicion of COVID-19 warrants consideration.

Staphylococcus aureus is one of the main pathogens leading to both clinical and subclinical bovine mastitis in dairy cattle. Prediction of disease evolution based on the characteristics of Staph. aureus isolates that cause intramammary infections and understanding the host-pathogen interactions may improve management of mastitis in dairy herds.

Bovine clinical mastitis is an important problem for the dairy industry, and Staphylococcus aureus is a common mastitis-causing pathogen in many countries. Detailed knowledge on genetic variation of Staph. aureus strains within the bovine population, including changes over time, can be useful for mastitis control programs, because severity of disease and effects on milk production are at least partly strain-associated.

Rapid and sensitive detection of foodborne pathogens is of great importance for food safety. Here, a set of nuclear magnetic resonance (NMR) biosensors based on a O-carboxymethyl chitosan target gadolinium (Gd) probe was developed to quickly detect Salmonella in milk by combining NMR technology and bioimmunotechnology with membrane filtration technology.

Food is a basic necessity for life, growth, survival, and maintaining a proper body function. Rising food demand leads both producers and consumers to search for alternative food sources with high nutritional value. However, food products may never be completely safe. The oxidation reaction may alter both the physicochemical and immunological properties of food products.

by Huili Zhang, Kairui Zhou, Xinglong He, Xin Yuan

Background

With the widespread use of broad-spectrum antibiotics, the problem of bacterial resistance has become a global crisis. To monitor bacterial resistance in our hospital, the distribution of specimens, the detection of pathogens and their drug resistance from July 2005 to June 2007 (13 years ago) and July 2018 to June 2020 were compared and analyzed.

Methods

The ongoing COVID-19 pandemic has highlighted the need to incorporate pathogen genomics for enhanced disease surveillance and outbreak management in Africa. The genomics of SARS-CoV-2 has been instrumental to the timely development of diagnostics and vaccines and in elucidating transmission dynamics.

On June 30, 2021, findings from a report by the European Centre for Disease Prevention and Control (ECDC), the European Food Safety Authority, and the European Medicines Agency have shown that use of antibiotics in food-producing animals is decreasing in Europe.

Author(s): JaiGopal Sharma, Amarjeet Singh, Ajima Begum, Sonia, Vungarala Hari Krishna, Rina Chakrabarti

Author(s): Nor Shifa Shuib, Bahruddin Saad

Author(s): I-Ting Lin, Edan R. Tulman, Steve J. Geary, Xiaohui Zhou

Author(s): Jia Xu, Ming Yang, Yuhong Wang, Yong Yang, Fengqin Tu, Jun Yi, Jing Hou, Huang Lu, Xiaoming Jiang, Dan Chen

Author(s): Matteo Crotta, Luca Pellicioli, Alessandra Gaffuri, Tiziana Trogu, Nicoletta Formenti, Vito Tranquillo, Camilla Luzzago, Nicola Ferrari, Paolo Lanfranchi

Author(s): Yanfen Jiang, Yinghui Ma, Qianqian Liu, Tianmei Li, Yiming Li, Kangkang Guo, Yanming Zhang

Author(s): Emmanuelle Ferreira Requião Silva, Bruna Rosa da Silva Santos, Lucas Almir Cavalcante Minho, Geovani Cardoso Brandão, Márcio de Jesus Silva, Mariângela Vieira Lopes Silva, Walter Nei Lopes dos Santos, Ana Maria Pinto dos Santos

Author(s): Zhiming Guo, Ping Chen, Mingming Wang, Min Zuo, Hesham R. El-Seedi, Quansheng Chen, Jiyong Shi, Xiaobo Zou

Author(s): Chengcheng Fan, Baomin Wang, Hongmei Ai, Yi Qi, Ze Liu

Author(s): Xing Gao, Iram Hassan, Yutao Peng, Shouliang Huo, Lan Ling

Author(s): N.U. Sruthi, K. Josna, R. Pandiselvam, Anjineyulu Kothakota, Mohsen Gavahian, Amin Mousavi Khaneghah

Alveolar echinococcosis is the most severe worm disease primarily detected in the liver. This study aimed to determine the clinical tolerance and efficacy of albendazole in patients with alveolar echinococcosis, depending on the volume of previous surgical treatment or its absence and the duration of anti-parasitic therapy.

The impacts of invasive fish species on recipient communities are mostly considered a threat to the biodiversity of freshwater systems. A characteristic of introduced species turning invasive is their higher tolerance to environmental stressors.

As one of the most harmful environmental pollutants, cadmium (Cd) has arisen much interest, and many researches have been carried out to study the adsorption of heavy metals by biochar, but the mechanisms were poorly explored and the roles components in biochar played are still indistinct. In this study, we evaluated the adsorption capacities and mechanisms of soybean root biochar pyrolyzed at four different temperatures.

Four specimens of gametophores and protonemata of Scopelophila cataractae (copper moss) were collected from a stream in Doi Suthep-Pui National Park, Thailand in order to determine heavy metal accumulation and Cu localization. The order of total metal concentrations in the protonemata and leaf cell surfaces of S. cataractae was Fe > Zn > Cu. Significant Cu values (> 400 mg kg−1) were found in both gametophores and protonemata.

Aflatoxin B1 (AFB1) is an important indicator in food safety assessment. In the present study, a non-label electrochemical aptasensor based on the Cu metal–organic framework (CuMOF) was fabricated to measure AFB1. The CuMOF was synthesized with a simple method and used to modify glassy carbon electrode (GCE).