Research Publications (Food Safety)

Author(s): Sancho Rajan, K. Ronnie Rex, Mukesh Pasupuleti, Juan Muñoz-Arnanz, Begoña Jiménez, Paromita Chakraborty

Author(s): Jie Tang, Qiong Zhang, Jie Zhou, Huichao Fang, Haifeng Yang, Feng Wang

Author(s): Ana Flávia Minutti, Fernando Emmanuel Gonçalves Vieira, João Pedro Sasse, Thais Agostinho Martins, Mércia de Seixas, Sérgio Tosi Cardim, Luiz Daniel de Barros, João Luis Garcia

Author(s): Peipei Zhou, Rui Wang, Ru Fan, Xiaoran Yang, He Mei, Huaiyu Chen, Huili Wang, Zhenfeng Wang, Xuedong Wang

Author(s): Lihong Su, Yongdong Xie, Zhongqun He, Jianwei Zhang, Yi Tang, Xiaoting Zhou

Author(s): Vinicius Duarte, Adriano Olnei Mallmann, Diogo Liberalesso, Cristina Tonial Simões, Luciane Tourem Gressler, Franciéli Adriane Molossi, Ana Paula Frederico Rodrigues Loureiro Bracarense, Carlos Augusto Mallmann

Acrylamide, a well-documented neurotoxicant, is commonly found as a byproduct of the Maillard reaction in carbohydrate-rich foods. Numerous studies have indicated that acrylamide-induced apoptosis accompanied by mitochondrial dysfunction contributes to its neurotoxicity. However, the mechanisms of how acrylamide causes mitochondrial impairment is not well understood.

Heavy metal pollution of a mining-impacted river—the Wenyu River—and a short section of the river it joins, the Luo River, were investigated after heavy rainfall following a dry season in March 2015 and during a normal flow season in May 2015. Water samples were collected during these two periods, and sediment samples were obtained in May as the rain washed out the sediments in March.

In this paper, a sensitive and simple zirconium nanoparticles (Zr-NPs) based vortex assisted ligandless dispersive solid phase extraction (VA-LDSPE) method was developed for the preconcentration of lead from wastewater samples for the determination by slotted quartz tube–flame atomic absorption spectrometry (SQT-FAAS).

In this paper, nutrient recovery from sewage sludge as struvite using pulsed electric field (PEF) technique was performed. Box-Behnken response surface methodology (BBD) was used to determine the best struvite formation conditions. NH4-N removal efficiency (Y1) and PO4-P removal efficiency (Y2) were considered response functions, while the pH (X1), magnesium concentration (X2, mM), and phosphate concentration (X3, mM) were considered independent variables in the BBD.

Abstract

Aims

Phosphorus (P) fertilizers are often considered an important source of cadmium (Cd) in crop plants. However, increased plant Cd concentrations are not strictly related to the Cd content of P fertilizers. Considering this, we hypothesized that, alternatively, reduction of arbuscular mycorrhizal colonization by P fertilization enhances Cd accumulation in plants.

The objective of this study was to quantify the increase in efficacy during the first four cycles of treatment with botulinum toxin type/A (BoNT/A) in 24 free-walking BoNT/A naïve adult patients with post-stroke hemispasticity and spastic foot drop. Patients were followed over 390 days and received five injections of 800 U aboBoNT/A every three months.

Salmonella spp. is one of the most common foodborne pathogens worldwide; therefore, its control is highly relevant for the food industry. Phages of the Felixounavirus genus have the characteristic that one phage can infect a large number of different Salmonella serovars and, thus, are proposed as an alternative to antimicrobials in food production. Here, we describe two new members of the Felixounavirus genus named vB_Si_35FD and vB_Si_DR94, which can infect Salmonella Infantis.

Salmonella spp. is among the leading causes of foodborne infections in humans and a large number of animals. Salmonella spp. is a pathogen involved in the dissemination of antimicrobial resistance because it can accumulate antibiotic resistance genes (ARGs). In this study, the antibiotic resistance profile to 15 antibiotics, belonging to six different classes, of 60 strains of Salmonella spp.

Globally, tuberculosis (TB) remains a prevalent threat to public health. In 2019, TB affected 10 million people and caused 1.4 million deaths. The major challenge for controlling this infectious disease is the emergence and spread of drug-resistant Mycobacterium tuberculosis, the causative agent of TB. The antibiotic streptomycin is not a current first-line anti-TB drug. However, WHO recommends its use in patients infected with a streptomycin-sensitive strain. Several mutations in the M.

Soils of abandoned and vacant lands in the periphery of cities are frequently subjected to illegal dumping and can undergo degradation processes such as depletion of organic matter and nutrients, reduced biodiversity, and the presence of contaminants, which may exert an intense abiotic stress on biological communities. Mycorrhizal-assisted phytoremediation and intercropping strategies are highly suitable options for remediation of these sites.

Selective cargo packaging into bacterial extracellular vesicles has been reported and implicated in many biological processes, however, the mechanism behind the selectivity has remained largely unexplored. In this study, proteomic analysis of outer membrane (OM) and OM vesicle (OMV) fractions from enterotoxigenic E. coli revealed significant differences in protein abundance in the OMV and OM fractions for cultures shifted to oxidative stress conditions.

Antimicrobial resistance (AMR) in Campylobacter spp. (Campylobacter coli and Campylobacter jejuni) is a concern due to its importance in public health, particularly when it involves aminoglycosides and macrolides, drugs of choice for treatment of human cases.

Puroindolines are small, amphipathic, wheat proteins that determine the hardness of the wheat kernel and protect crops from different pathogens. Puroindoline A (PinA) and puroindoline B (PinB) are two major isoforms of puroindolines. These proteins have antibacterial and antifungal properties mainly attributed to their characteristic tryptophan-rich domains (TRDs).

Listeria monocytogenes is an important foodborne pathogen which has the ability to adapt and survive in food and food processing facilities where it can persist for years. In this study, a total of 143 L. monocytogenes isolates in South Africa (SA) were characterized for their strain’s genetic relatedness, virulence profiles, stress tolerance and resistance genes associated with L. monocytogenes.

Elucidating the relative importance of species interactions and assembly mechanisms in regulating bacterial community structure and functions, especially the abundant and rare subcommunities, is crucial for understanding the influence of environmental disturbance in shaping ecological functions. However, little is known about how polycyclic aromatic hydrocarbon (PAH) stress alters the stability and functions of the abundant and rare taxa.

by Thanawat Sridapan, Wanida Tangkawsakul, Tavan Janvilisri, Taradon Luangtongkum, Wansika Kiatpathomchai, Surang Chankhamhaengdecha

by Xiaoying Wu, Bei Wu, Yue Li, Xiue Jin, Xiliang Wang

Infections of the mammary gland remain a frequent disease of dairy ruminants that negatively affect animal welfare, milk quality, farmer serenity, and farming profitability and cause an increase in use of antimicrobials. There is a need for efficacious vaccines to alleviate the burden of mastitis in dairy farming, but this need has not been satisfactorily fulfilled despite decades of research.

The objective of this study was to evaluate the inhibitory effect of lactic acid (LA) and peroxyacetic acid (PAA) on the biofilm formation of Escherichia coli O157:H7 in beef extract (BE). BE medium was used as the growth substrate in this study, to make the control effect closer to the situation of the factory. The biofilm inhibitory efficacy of LA and PAA was tested by using a crystal violet staining assay and microscopic examination.