A simple and high-throughput colorimetric analysis array has been constructed for quantifying H₂O₂ in milk using Fe₃O₄ quantum dots (QDs), which were coated with sodium alginate (SA) and chromogenic substrate onto the arrayed capillary tubes. It was discovered that the Fe₃O₄ QDs could present...

Biogenic amines (BAs) are natural toxicants produced during the metabolism of their precursor amino acids or due to the proteolytic activities of some microorganisms. The objective of this study was to estimate the formed BAs in five types of the most commonly consumed and retailed cheese in Egypt. ...

This study aims to examine the changes of microbial contamination on the beef carcass surface and in the contact environment during cattle slaughtering. A total of 322 microbial samples were collected during the skinning, trimming and weighing, washing and chilling processes. The sampling sites...

Food hygiene concerns the health of the general public and has always been a hot issue in society. With the rapid development of wine industry in China, consumers are paying more and more attention to domestic wines. Wine hygiene as a key factor of product quality not only influences the...

Objective: To understand the sanitary condition and preservative usage of bulk pickles in Zhengzhou. Methods: A total of 120 batches of bulk pickles sold in supermarkets, small food stores and farmers' markets around the residential areas of Zhengzhou were randomly selected to detect the total...

A rapid method for the determination of benzalkonium bromide, C₁₂-benzalkonium chloride, C₁₄-benzalkonium chloride, C₁₆-benzalkonium chloride, didecyl dimethyl ammonium chloride, tetrabutyl ammonium hydrogen sulfate in infant milk powder was established using high performance liquid...

This work aimed to develop an integrated high-throughput screening and quantification for multi-class veterinary drug residues by HPLC-Q-Orbitrap mass spectrometry. A qualitative screening mass database of 171 veterinary drugs was created using full scanning mode, which improved the screening...

Herein, a three-dimensional macroporous gold (3DMG) electrode is demonstrated to be a better choice than a conventional gold disk electrode in the construction of an electrochemical immunobiosensor for Staphylococcus aureus (S. aureus) detection. The 3DMG electrode was prepared on a gold disk...

Objective: To establish a method for the detection of methyl mercury in crabs by purge and trap gas chromatography-cold vapor atomic fluorescence spectrometry. Methods: The samples were extracted by nitric acid (30%, V:V) and converted methyl mercury to the more volatile methylethylmercury by the...

In this work, a monoclonal antibody-based indirect competitive enzyme-linked immunosorbent assay (icELISA) was established to detect tylosin and tilmicosin in milk and water samples. A sensitive and specific monoclonal antibody was prepared by rational designed hapten, which was achieved by...