8 results match your criteria: "Quality Standards and Testing Technology Research Institute[Affiliation]"

LZ-R-5 (R-5), a strain with high epithelial adhesion and bioactive exopolysaccharide production, was isolated from Tibetan kefir grains. This study investigated its potential to alleviate intestinal inflammation using a DSS-induced colitis model in BALB/c mice. We integrated microbial diversity and serological analyses to assess changes in gut flora and cytokines following the R-5 treatment.

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Novel insights related to soil microplastic abundance and vegetable microplastic contamination.

J Hazard Mater

February 2025

College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, China; Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China. Electronic address:

Despite evidence of the uptake of soil microplastics (MPs) by crops, there is a paucity of knowledge regarding the contamination of vegetables in real-world environments with microplastics. This study establishes a correlation between the presence of microplastics in farmland and the concentration of microplastics in crops. The soil samples were found to contain Polyethylene (PE), polypropylene (PP), polystyrene (PS) and polyvinyl chloride (PVC).

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Goji berry (wolfberry, ), is a genus of Solanaceae, in which the roots, stems, leaves, and fruits are for both food and medicinal uses. In recent years, the demand for health food and research purposes has led to increasing attention being paid to the application of goji berry nutrients and resources. There are three general strategies to process and utilize the goji berry plant.

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SWATHtoMRM technology was used in this experiment to further identify and trace the sources of and produced in the same area using TOF and MS-MRM. After the conversion of the R package of SWATHtoMRM, 191 MRM pairs of positive ions and 96 pairs of negative ions were obtained. and can be separated very well using the PCA and PLS-DA analysis of MRM ion pairs; this shows that there are obvious differences in chemical composition between and , which clearly proves that the pseudotargeted metabolomics method based on SWATHtoMRM can be used for traceability identification research.

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Migration behavior and dietary exposure risk assessment of pesticides residues in honeysuckle (Lonicera japonica Thunb.) based on modified QuEChERS method coupled with tandem mass spectrometry.

Food Res Int

April 2023

Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100093, PR China. Electronic address:

The honeysuckle was widely appreciated as tea beverage owing to the biological activities and the unique aroma and flavor. It is in urgent requirement to explore the migration behavior and dietary exposure as the pesticide residues would bring about potential risks through honeysuckle intake. The optimized QuEChERS procedure coupled with the HPLC-MS/MS and GC-MS/MS methods were employed to determine 93 pesticide residues of seven classifications including carbamates, pyrethroid, triazoles, neonicotinoids, organophosphorus, organochlorine, and others for 93 honeysuckle samples from four primary production bases.

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Article Synopsis
  • A study identified four pesticides commonly found in Pu'er tea using advanced testing methods, highlighting the efficacy of multiwalled carbon nanotubes (MWCNTs) in reducing interference during analysis.
  • Out of 300 samples tested, tolfenpyrad was the most frequently detected pesticide at 35.7%, while indoxacarb had the lowest detection rate at 5.2%, with varying residual concentrations for the other pesticides.
  • Risk assessment indicated that all detected pesticides had hazard quotients below one, which suggests acceptable risk levels, although attention should be given to tolfenpyrad due to its higher detection rates and residual amounts.
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Eight new generation amide insecticide residues analysis by multiwalled carbon nanotubes (MWCNs) cleanup, combined with QuEChERS and ultrahigh performance liquid chromatography tandem mass spectrometry has been developed and successfully applied in complex matrix such as orange, celery, onion, litchi, mango, shallot, chives, avocado, garlic. The matric effect of MWCNs is optimized and compared with ordinary cleanup materials. The results show that the performance of MWCNs is fine and effectively reduce matrix interference.

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Poria originated from the dried sclerotium of is an edible traditional Chinese medicine with high economic value. Due to the significant difference in quality between wild and cultivated , this study aimed to trace the origin of the fungus from the perspectives of wild and cultivation. In addition, there were quite limited studies about data fusion, a potential strategy, employed and discussed in the geographical traceability of .

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