[Pollution status and dietary exposure assessment of heavy metal in commercially available cereal-based complementary foods for infants and toddlers in Jiangxi Province from 2015 to 2019].

Objective: To investigate the pollution status of lead, cadmium, total arsenic and total mercury in commercially available cereal-based complementary foods in infants and toddlers in Jiangxi Province, and to evaluate dietary exposure and their potential health risks.

Methods: A total of 648 samples of cereal-based complementary foods in for infants and toddlers were randomly collected in circulation in Jiangxi Province, the contents of lead and cadmium were determined by graphite furnace atomic absorption spectrophotometry, and total arsenic and mercury were determined by atomic fluorescence spectrometry. The dietary exposure of lead, cadmium, total arsenic and total mercury was calculated by point estimate model.

Burden of self-reported acute gastrointestinal illness in China: a population-based survey.

Background: Acute gastrointestinal illness (AGI) is an important public-health problem worldwide. Previous national studies of the incidence of AGI in China were performed decades ago, and detailed information was not available. This study therefore sought to determine the magnitude, distribution, and burden of self-reported AGI in China.

Magnetic nano-beads based separation combined with propidium monoazide treatment and multiplex PCR assay for simultaneous detection of viable Salmonella Typhimurium, Escherichia coli O157:H7 and Listeria monocytogenes in food products.

We developed a rapid and reliable technique for simultaneous detection of Salmonella Typhimurium, Escherichia coli O157:H7 and Listeria monocytogenes that can be used in food products. Magnetic nano-beads (MNBs) based immunomagnetic separation (IMS) was used to separate the target bacterial cells while multiplex PCR (mPCR) was used to amplify the target genes. To detect only the viable bacteria, propidium monoazide (PMA) was applied to selectively suppress the DNA detection from dead cells.