In this study, a cobalt-based mesoporous carbon material (Co@C) was prepared by self-assembly method and impregnation method, and carboxyl functionalization was carried out to obtain COOH-Co@C. Then, the penicillinase (Pen X) was immobilized on the carrier material by covalent binding. The...

Total DNA extracted from the abalone samples were used as the template to explore the characteristics of the bacterial diversity during the abalone stored. The method of polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) was employed to analyze bacterial diversity at 4...

This study was constructed to study the inactivation effects of temperature (25, 37, and 45°C), nisin, and ε-polylysine on Bacillus subtilis isolated from cooked shrimps under acidic environment (pH=5). Linear model, weibull model, and log-logistic model were used to fit and evaluate inactivation...

Objective: To verify the specificity and stability of Salmonella, non-Salmonella and positive nucleic acid template for MICROFAST® Salmonella nucleic acid detection kit (PCR-probe method), and compare the consistency between the PCR kit method and GB 4789.4-2016 culture method. Methods: The...

Canada is known as one of the most stringent nation at food hygiene and inspection in world. The detection items and mode of operation of national microbiological monitoring program (NMMP) are worthy of reference for other nations. During the fiscal year (2012-2013) under the NMMP, 4980 domestic...

In this study, a fluorine-fluorine interaction approach through fluoridating boron nitride nanosheets (BNNs) for sensing perfluoroalkyl acids (PFAAs) in multiple food matrices was developed. Through a facile hydrothermal fluorination modification, the BNNs were transferred into homogeneous...

In this work, by using high throughput virtual screening and bioactivity assays, this work revealed that three natural compounds, mulberrin (Mul) exhibiting the highest anti-CYP51 activity, isoxanthohumol and (s)-isopsoralen markedly inhibited 14α-demethylase (a pivotal biosynthetic enzyme involved ...

Small molecular food contaminants, such as mycotoxins, pesticide residues and antibiotics, are highly probable to be passively introduced in food at all stages of its processing, including planting, harvest, production, transportation and storage. Owing to the high risks caused by the unknowing...

The microbiological items and the microbiological control system of infant formula were studied and discussed, the necessity and rationality of risk assessment of microbiological safety was also presented.

The development of sensitive method for analysis of pesticide residue is of great significance to ensure food safety and promote globalization of food trade. An original method was proposed for analysis of phenoxy carboxylic acids (PCAs) pesticide in plant-derived food. To concentrate trace PCAs,...