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Function: require_once
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Filename: controllers/Detail.php
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Function: insertAPISummary
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Filename: helpers/my_audit_helper.php
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As a natural and healthy beverage, tea is widely enjoyed; however, the pesticide residues in tea leaves affect the quality and food safety. To develop a highly selective and efficient method for the facile removal of pesticide residues, the subcritical butane extraction (SBE) technique was employed, and three variables involving temperature, time and extraction cycles were studied. The optimum SBE conditions were found to be as follows: extraction temperature 45 °C, extraction time 30 min, number of extraction cycles 1, and in such a condition that the extraction efficiency reached as high as 92%. Further, the catechins, theanine, caffeine and aroma components, which determine the quality of the tea, fluctuated after SBE treatment. Compared with the uncrushed leaves, pesticide residues can more easily be removed from crushed leaves, and the practical extraction efficiency was 97%. These results indicate that SBE is a useful method to efficiently remove the bifenthrin, and as appearance is not relevant in the production process, tea leaves should first be crushed and then extracted in order that residual pesticides are thoroughly removed.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6154673 | PMC |
http://dx.doi.org/10.3390/molecules22040560 | DOI Listing |
Toxicol Rep
December 2024
Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK.
The use of pesticides in commercial farms can lead to exposure among various vulnerable groups. This study assessed the distribution, human health risks, and origins of 13 targeted organochlorine pesticides (OCPs) in soil samples from commercial farms in Southern Nigeria. Following a questionnaire survey on pesticide usage, soil samples were subjected to Soxhlet extraction and analyzed using gas chromatography-mass spectrometry.
View Article and Find Full Text PDFChemMedChem
December 2024
Central China Normal University, State Key Laboratory of Green Pesticide, CHINA.
Butyrylcholinesterase plays an indispensable role in organisms, and its abnormal expression poses a significant threat to human health and safety, covering various aspects including liver-related diseases, diabetes, obesity, cardiovascular and cerebrovascular diseases, and neurodegenerative diseases. In addition, toxic substances such as organophosphorus and carbamate pesticides markedly inhibit BChE activity. BChE activity serves as a critical parameter for the clinical diagnosis of acute organophosphorus pesticide poisoning and the evaluation of organophosphorus and carbamate pesticide residues.
View Article and Find Full Text PDFACS Omega
December 2024
Institute of Agro-product Safety & Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
To investigate the quality and safety difference between agricultural standardization bases and small-scale farmers, we carried out a three-year investigation of asparagus from seven production sites of different sizes in Pinghu city, Zhejiang Province, China, from 2021 to 2023. We documented trace elements (Fe, Zn, Mn, and Cu), quality indicators (vitamin B1, vitamin B2, vitamin C, total sugar, and proteins), and pesticide residues. The evaluation indicated that the quality of asparagus in standardization bases 1-4 was higher than that in small farmer sites 5-7.
View Article and Find Full Text PDFJ Environ Sci Health B
December 2024
Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt.
Animal feed significantly influences the content and quality of animal products consumed by humans and plays a crucial role in the food chain. To simultaneously analyze 345 pesticide residues in poultry feed, a modified Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method was developed, utilizing gas chromatography-tandem mass spectrometry (GC-MS/MS). Validation studies were conducted with spiked pesticide standards, and commercial poultry feed samples were analyzed.
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2024
Food Science Program, University of Missouri, Columbia, Missouri 65211, United States.
The widespread use of pesticides in agriculture poses food safety and environmental risks, highlighting the need for rapid detection techniques to mitigate contamination. Surface-enhanced Raman spectroscopy (SERS) coupled with machine learning provides a powerful approach for the detection and quantification of multiple pesticides in agricultural products. This study introduces the SERSFormer-2.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!