Results 31 to 40 of about 38,539 (210)

A monitoring survey and health risk assessment for pesticide residues on Codonopsis Radix in China

Scientific Reports, 2022
In recent years, the safety of Codonopsis Radix (CR) has attracted considerable attention. Pesticide residues is an important index to evaluate the safety of CR.
Yanping Wang, Jiabin Han, Jinjin Zhang, Xue Li, Ruibin Bai, Fangdi Hu   +5 more
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Chiral perspective evaluations: Enantioselective hydrolysis of 6PPD and 6PPD-quinone in water and enantioselective toxicity to Gobiocypris rarus and Oncorhynchus mykiss

Environment International, 2022
As a ubiquitous tire antidegradant, N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylenediamine (6PPD) is persistently released into the environment. It is highly toxic to aquatic organisms, and its transformation product 6PPD-quinone (6PPD-Q), is “very highly ...
Shanshan Di, Zhenzhen Liu, Huiyu Zhao, Ying Li, Peipei Qi, Zhiwei Wang, Hao Xu, Yuanxiang Jin, Xinquan Wang   +8 more
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Optimization of Extraction Process, Structural Characterization and Component Analysis of Total Flavonoids from Mesembryanthemum crystallinum

Shipin gongye ke-ji, 2022
In this study, the ultrasound-assisted extraction conditions of total flavonoids were optimized, and the structure and composition of total flavonoids were further analyzed.
Meiling SUN, Xuezhi QIU, Jing ZHOU, Xiangning CHEN   +3 more
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Optimization of an LC–MS/MS analytical method for strychnine in livestock and fishery products

Applied Biological Chemistry
Strychnine, an alkaloid recognized for its antagonist effects on glycine and acetylcholine receptors, is highly toxic and banned in several countries. It is also set to restricted in Republic of Korea from 2024, creating a need for a quantitative test ...
Jin Ha Sim, Hyesu Lee, Ji Young Kim, So–Ra Park, Gui–Hyun Jang, Miok Eom   +5 more
doaj   +1 more source

Simultaneous determination of 31 Sulfonamide residues in various livestock matrices using liquid chromatography-tandem mass spectrometry

Applied Biological Chemistry
The widespread use of sulfonamides can result in the residue of sulfonamides in the foods of animal origin that are the major concerns of consumers and regulatory bodies due to their adverse reaction such as the development of antibiotic resistance.
Yu Ra Kim, Sunyoung Park, Ji Young Kim, Jang-Duck Choi, Gui-Im Moon   +4 more
doaj   +1 more source

Bifenthrin Residues in Table Grapevine: Method Optimization, Dissipation and Removal of Residues in Grapes and Grape Leaves

Plants
The QuEChERS method was adjusted to determine bifenthrin residues in grapes and grape leaves. Extraction and cleanup procedures were optimized to decrease co-extracted materials and enhance the detection of bifenthrin.
Saleh S. Alhewairini, Rania M. Abd El-Hamid, Nevein S. Ahmed, Sherif B. Abdel Ghani, Osama I. Abdallah   +4 more
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Pesticides Residues in Fresh Food of Plant Origin: Case Study in Indonesia

AGRIVITA Journal of Agricultural Science, 2021
The use of pesticides in fresh food of plant origin (FFPO) such as horticulture products is widely known. Such broad implementation of pesticide can result in a tremendous usage of pesticides and, afterward, in intolerable levels of pesticide residues in
Agung Hendriadi, Sulistiyorini Sulistiyorini, Miranti Reine Devilana   +2 more
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Temporal Trends, Multiple Residue Incidence, and Chronic Health Risk of Pesticides in Egyptian Onions: A Four-Year Market Surveillance

Journal of Xenobiotics
This study analyzed 5731 Egyptian onion samples collected from 2021 to 2024 to detect 430 pesticide residues and evaluate occurrence patterns, EU Maximum Residue Limits (MRLs) compliance, multiple residue prevalence, and consumer health implications. The
Farag Malhat, Shokr Shokr, Sara Heikal, Nour El-Hoda Zidan   +3 more
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Exploiting pH-Regulated Dimer-Tetramer Transformation of Concanavalin A to Develop Colorimetric Biosensing of Bacteria

Scientific Reports, 2017
Gold nanoparticles (AuNPs) aggregation-based colorimetric biosensing remains a challenge for bacteria due to their large size. Here we propose a novel colorimetric biosensor for rapid detection of Escherichia coli O157:H7 (E.
Xiahong Xu, Yuwei Yuan, Guixian Hu, Xiangyun Wang, Peipei Qi, Zhiwei Wang, Qiang Wang, Xinquan Wang, Yingchun Fu, Yanbin Li, Hua Yang   +10 more
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Monitoring and accumulative risk assessment of pesticide residues detected in the common vegetables grown in the Eastern Nile Delta, Egypt

Food Chemistry Advances, 2023
The present study proposed to monitor the pesticide residues in most vegetables grown in the Eastern Nile Delta region, Egypt, and evaluate the potential health risk associated with them.
Ehab A. Ibrahim, Shehata E.M. Shalaby
doaj   +1 more source