Mechanisms of thermal, acid, desiccation and osmotic tolerance of spp.

spp. exhibit remarkable resilience to extreme environmental stresses, including thermal, acidic, desiccation, and osmotic conditions, posing significant challenges to food safety. Their thermotolerance relies on heat shock proteins (HSPs), thermotolerance genomic islands, enhanced DNA repair mechanisms, and metabolic adjustments, ensuring survival under high-temperature conditions.

Niche-specific evolution and gene exchange of Salmonella in retail pork and chicken.

Salmonella exhibits extensive genetic diversity, facilitated by horizontal gene transfer occurring within and between species, playing a pivotal role in this diversification. Nevertheless, most studies focus on clinical and farm animal isolates, and research on the pangenome dynamics of Salmonella isolates from retail stage of the animal food supply chain is limited. Here, we investigated the genomes of 950 Salmonella isolates recovered from retail chicken and pork meats in seven provinces and one municipality of China in 2018.

n. sp. (Strongylida: Molineidae) in the bat (Leach; Chiroptera: Vespertilionidae) from China.

A new species of nematode, n.sp., parasite of the genus , is described based on specimens recovered from the small intestine of Leach, 1822 (Chiroptera: Vespertilionidae) in Longmen County, Guangdong Province, China.

Different impacts of parental psychological and behavioral control on the cultivation of advantageous strength in Chinese rural adolescent.

Introduction: Numerous studies have focused on the mental and behavioral problems or negative emotions of adolescents when examining the impact of parental control. However, limited research has explored the relationship between parental control and adolescents' future planning, neglecting the distinctions between parental psychological and behavioral control, as well as the significant roles of personal growth initiative and meaning in life. The present study aims to investigate the differential effects of parental psychological control and behavioral control on the future planning of rural adolescents in China.

Use of proteomics to elucidate characteristics of Cronobacter sakazakii under mild heat stress.

Cronobacter sakazakii is an opportunistic pathogen known for causing severe diseases. Mild heat treatment is commonly used in food processing, however, the pathogenic characteristics and underlying mechanisms of Cronobacter sakazakii strains remain poorly understood. In this study, we found that mild heat stress (MHS) at 52 °C can induce several deleterious effects in Cronobacter sakazakii, including damage to the cell wall, genomic DNA breakage, and misfolding of cytoplasmic proteins.

Prevalence, serotype, antimicrobial susceptibility, contamination factors, and control methods of Salmonella spp. in retail fresh fruits and vegetables: A systematic review and meta-analysis.

This research presents a comprehensive review of Salmonella presence in retail fresh fruits and vegetables from 2010 to 2023, utilizing data from recognized sources such as PubMed, Scopus, and Web of Science. The study incorporates a meta-analysis of prevalence, serovar distribution, antimicrobial susceptibility, and antimicrobial resistance genes (ARGs). Additionally, it scrutinizes the heterogeneous sources across various food categories and geographical regions The findings show a pooled prevalence of 2.

Research on quantitative detection technology of raccoon-derived ingredient adulteration in sausage products.

This project presents a quantitative detection method to identify raccoon-derived ingredient adulteration in sausage products. The specific copy gene of the raccoon was selected as the target gene. According to the specificity of its primer and probe, the quantitative detection method of raccoon microdrops by droplet digital PCR was established.

Total coliforms, microbial diversity and multiple characteristics of Salmonella in soil-irrigation water-fresh vegetable system in Shaanxi, China.

Global occurrences of foodborne disease outbreaks have been documented, involving fresh agricultural produce contaminated by various pathogens. This contamination can occur at any point in the supply chain. However, studies on the prevalence of total coliforms, Salmonella and microbial diversity in vegetable and associated environments are limited.

Antibiotic susceptibility and genomic analysis of ciprofloxacin-resistant and ESBLs-producing Escherichia coli in vegetables and their irrigation water and growing soil.

The rise of antibiotic resistance in Escherichia coli has become a major global public health concern. While there is extensive research on antibiotic-resistant E. coli from human and animal sources, studies on vegetables and their environments are limited.

Rapid authentication of characteristic milk powders by recombinase polymerase amplification assays.

The authentication of dairy species has great significance for food safety. This study focused on a more rapid method for identifying major dairy species, and specific recombinase polymerase amplification (RPA)-based assays for cattle, goat, sheep, camel and donkey were developed. Through the developed RPA-based assays, goats and sheep could be simultaneously identified and bovine families could be differentiated.

Hexamethyldisiloxane Removal from Biogas Using a FeO-Urea-Modified Three-Dimensional Graphene Aerogel.

Volatile methyl siloxanes (VMS), which are considered to be the most troublesome impurities in current biogas-cleaning technologies, need to be removed. In this study, we fabricated a series of FeO-urea-modified reduced graphene-oxide aerogels (FeO-urea-rGOAs) by using industrial-grade graphene oxide as the raw material. A fixed-bed dynamic adsorption setup was built, and the adsorption properties of the FeO-urea-rGOAs for hexamethyldisiloxane (L2, as a VMS model pollutant) were studied.

Removal of Hexamethyldisiloxane via a Novel Hydrophobic (3-Aminopropyl)Trimethoxysilane-Modified Activated Porous Carbon.

Volatile methyl siloxanes (VMS) must be removed because the formation of silica in the combustion process seriously affects the resource utilization of biogas. Herein, a series of APTMS ((3-aminopropyl)trimethoxysilane)-modified activated porous carbon (APC) adsorbents (named APTMS@APC) were prepared for VMS efficient removal. The as-prepared adsorbents were characterized using SEM, FTIR, Raman, X-ray diffraction analyses, and N adsorption/desorption.

Modified melamine-based porous organic polymers with imidazolium ionic liquids as efficient heterogeneous catalysts for CO cycloaddition.

The chemical conversion of carbon dioxide (CO) into highly value-added products not only alleviates the environmental issues caused by global warming but also makes an impact on economic benefits in the world. The synthesis of cyclic carbonates by the cycloaddition of CO with epoxides is one of the most attractive methods for CO conversion. However, the development of green and highly efficient heterogeneous catalysts is considered to be a great challenge in catalysis.

Prevalence, antibiotic susceptibility and genomic analysis of Salmonella from retail meats in Shaanxi, China.

Salmonella is a major foodborne pathogen that poses a substantial risk to food safety and public health. This study aimed to assess the prevalence, antibiotic susceptibility, and genomic features of Salmonella isolates recovered from 600 retail meat samples (300 pork, 150 chicken and 150 beef) from August 2018 to October 2019 in Shaanxi, China. Overall, 40 (6.

and Identification, Absorbtion and Metabolism Network Analysis of Flavonoids Dropping Pill by UHPLC-Q-TOF-MS.

Background: Filifolium sibiricum flavonoids dropping pill (FSFp), a unique Chinese Filifolii sibirici herba extract preparation, has the potential as an alternative therapy against S. aureus infection (SA) and antiinfection. However, its chemical composition and in vivo metabolism characteristics remain unknown, which limits its clinical application.

Isolation, Identification, and Fermentation Medium Optimization of a Caproic Acid‑Producing Strain from Pit Mud of Chinese Strong Flavor Baijiu Ecosystem.

Caproic acid is the precursor material of ethyl hexanoate, a representative flavor substance in strong flavor baijiu (SFB). Increasing the content of caproic acid in SFB helps to improve its quality. In the present study, caproic acid-producing bacteria from the pit mud of an SFB ecosystem were isolated, purified, and characterized.

Molecular Characteristics and Antibiotic Resistance of Isolated from Patient and Food Samples in Shijiazhuang, China.

is a common opportunistic and zoonotic pathogen in the world and could easily cause human infections and food contaminations. This study investigated the sequence typing and resistance profiles of isolates from patient and food samples in Shijiazhuang, China. A total of 101 isolates were distributed into six clonal complexes (CCs) and 16 singletons.

Mechanical, Hydrophobic, and Barrier Properties of Nanocomposites of Modified Polypropylene Reinforced with Low-Content Attapulgite.

Attapulgite (ATT) has never been used as a barrier additive in polypropylene (PP). As a filler, ATT should be added in high content to PP. However, that would result in increased costs.

Erratum: ,,2,4,6-Penta-methyl-anilinium hexa-fluoro-phosphate-1,4,7,10,13,16-hexa-oxa-cyclo-octa-decane (2/1). Corrigendum.

[This corrects the article DOI: 10.1107/S1600536813033734.].

Conjugative transfer of mcr-1-bearing plasmid from Salmonella to Escherichia coli in vitro on chicken meat and in mouse gut.

Since mcr-1 was first discovered in 2015, this gene has shown excellent transmission ability and evolutionary characteristics worldwide, leading to major public health and food safety concerns. In this study, chicken meat was used as a food vehicle for the conjugation of mcr-1-bearing Salmonella at different storage temperatures (4 °C, 25 °C, and 37 °C) to simulate mcr-1 transmission during food transportation and storage and determine its efficiency and mechanism. In addition, conjugation experiments were performed in mouse gut to further confirm that mcr-1 is horizontally transferred in vivo during food consumption.

Establishment and Application of a Multiplex PCR Assay for the Rapid Detection of Anastomosis Group (AG)-3PT, the Pathogen Causing Potato Black Scurf and Stem Canker.

anastomosis group 3 (AG-3) is the main causative agent of the soil-borne disease known as potato black scurf, which poses a huge threat to potato production. Rapid and accurate identification of AG-3 isolates in soil and potato seed tubers prior to planting is essential for good production. In this study, a multiplex PCR assay was established for the detection of AG-3.

High-performance BiVO photoanodes cocatalyzed with bilayer metal-organic frameworks for photoelectrochemical application.

In this work, we modified a BiVO photoanode with bilayer Fe-MOF and Ni-MOF as cocatalysts for the first time and obtained a highly efficient BiVO composite photoanode whose photocurrent density was increased by 2.7 times. The optimized BiVO/Fe-MOF/Ni-MOF photoanode demonstrated a photocurrent density of 1.

Covalent organic framework-based fluorescent nanoprobe for intracellular pH sensing and imaging.

Lysosomes are the acidic organelles in the cells that play an important role in intracellular degradation and other various cellular functions. The pH disturbance of lysosomes will result in the lysosomal dysfunction and many lysosomal related diseases. In this work, we reported a methoxy-based covalent organic framework (TAPB-DMTP-COF) that a novel pH-responsive fluorescent probe for lysosomal pH imaging in cells.

Developing Qualitative Plasmid DNA Reference Materials to Detect Mechanisms of Quinolone and Fluoroquinolone Resistance in Foodborne Pathogens.

The aim of this study was to develop homogeneous and stable plasmid DNA reference materials for detecting the mechanisms of resistance to quinolones and fluoroquinolones in foodborne pathogens. The DNA fragments of 11 target genes associated with quinolone and fluoroquinolone resistance were artificially synthesized, inserted into plasmid vectors, and transferred into recipient cells. PCR and sequencing of DNA were performed to assess the genetic stability of the target DNA in recombinant DH5α cells during subculturing for 15 generations.