Article
Food Science & Technology
Wissam Sahyoun, Sopheak Net, Moomen Baroudi, Baghdad Ouddane
Summary: QuEChERS CEN Standard Method EN 15662 method with modification was used to extract and purify pesticide residues in fruits and vegetables matrix. The study found that organic fruits and vegetables had lower levels of pesticide residues compared to those from intensive agricultural practices. Washing or removing skin can reduce the health impact of pesticides in fruits and vegetables.
Article
Food Science & Technology
Thanh-Thien Tran-Lam, Minh Quang Bui, Hoa Quynh Nguyen, Yen Hai Dao, Giang Truong Le
Summary: The optimized analytical method proposed in this study effectively measured 656 pesticide residues in rice samples collected in Vietnam, highlighting the serious environmental and health impacts of pesticide applications. The results demonstrated the efficacy of the method in detecting pesticide contamination in rice and suggested the need for effective management strategies to address these issues.
Article
Chemistry, Applied
Ozgur Golge, Seren Cinpolat, Bulent Kabak
Summary: The study assessed the occurrence and quantification of pesticides in gherkins cultivated in Turkey, finding that a proportion of samples contained pesticide residues, some of which were not approved in the EU. Multiple pesticide residues were detected in some samples, with some exceeding the maximum residue levels.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2021)
Article
Environmental Sciences
Andrea Acosta-Dacal, Cristian Rial-Berriel, Ricardo Diaz-Diaz, Maria del Mar Bernal-Suarez, Octavio P. Luzardo
Summary: The modified QuEChERS method optimized for the extraction of 218 pesticide residues in agricultural soil samples showed high accuracy and sensitivity when applied to actual samples. The method demonstrated excellent performance in terms of quantification and detection limits.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Food Science & Technology
Nthabiseng Motshabi, Somandla Ncube, Mathew Muzi Nindi, Zenzile Peter Khetsha, Ntsoaki Joyce Malebo
Summary: This study evaluated the levels of pesticide residues in staple vegetables from fresh produce markets in Bloemfontein, South Africa, finding that the residues were below recommended maximum levels. Cabbage was found to be particularly susceptible to pesticide residue accumulation, with an average total concentration of 222 mg/kg in different markets. The existence of pesticide residues within guideline limits indicated compliance with good agricultural practices recommended by the FAO/WHO.
FOOD SCIENCE & NUTRITION
(2021)
Article
Food Science & Technology
Mateja Bulaic Nevistic, Marija Kovac Tomas
Summary: This study investigates the matrix effects (ME) during the analysis of pesticide residues in four food matrices using QuEChERS sample preparation. The results show that strong matrix effects were commonly observed, but the use of matrix-matched calibration enabled satisfactory method performance.
Article
Food Science & Technology
Chandrasekar Kandaswamy, Sreekanth Anandaram, S. I. Davis Presley, Ahammed T. P. Shabeer
Summary: A gas chromatography tandem mass spectrometry method was developed for simultaneous determination of 133 pesticides in Black pepper. QuEChERS sample preparation method is preferred over multistep methods. Even after the cleanup, non-volatile co-extractives stick to the liner and column, affecting the instrument performance, a dilution procedure was evaluated to overcome the drawbacks.
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2021)
Article
Food Science & Technology
Huijun Li, Jieshan Wu, Chao Chen, Wenfeng Xin, Wensheng Zhang
Summary: This study developed a method for simultaneous determination of 74 pesticide residues in Panax notoginseng and analyzed pesticide residues in 20 market samples in China. The method showed good linearity, recovery rates, and detection/quantification limits that met standards.
FOOD SCIENCE AND HUMAN WELLNESS
(2021)
Article
Environmental Sciences
Isra Toptanci, Mustafa Kiralan, Mohamed Fawzy Ramadan
Summary: In this study, pesticide residues in 493 fruit and vegetable samples from markets in Turkey were detected using a highly efficient extraction method. The results showed that nearly half of the samples were contaminated, with 30% of them containing pesticide residues above maximum residue limits. Chlorpyrifos was the most commonly detected pesticide, affecting a variety of different crops.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Applied
R. Harischandra Naik, M. S. Pallavi, Nandini, A. Shwetha, M. Bheemanna, R. Udaykumar Nidoni
Summary: An LC-MS/MS method was developed and validated for analyzing pesticides in pomegranate whole fruits and arils. The method demonstrated high accuracy and reproducibility, and can detect and quantify a wide range of pesticides in pomegranate samples.
Article
Chemistry, Applied
Aasma Bibi, Nazia Rafique, Sofia Khalid, Abdul Samad, Karam Ahad, Farrakh Mehboob
Summary: This study developed a sensitive multi-residue method for routine pesticide testing in Kinnow Mandarin, with validation showing high accuracy and wide applicability.
Article
Food Science & Technology
Jelena Radulovic, Milica Lucic, Aleksandra Nesic, Antonije Onjia
Summary: This study investigated the occurrence of pesticide residues on citrus fruits and evaluated the acute and chronic risk for adults and children. Multiple residues were detected in 83% of the samples analyzed, and 28% contained pesticides at or above maximum residue levels. Most detected pesticides posed a low risk, but some exceeded the acceptable levels for acute and chronic dietary risk. The acute risk was unacceptable in 5.3% of citrus fruits for adults and 26% for children.
Article
Biochemistry & Molecular Biology
Harischandra Naik Rathod, Bheemanna Mallappa, Pallavi Malenahalli Sidramappa, Chandra Sekhara Reddy Vennapusa, Pavankumar Kamin, Udaykumar Revanasiddappa Nidoni, Bheemsain Rao Kishan Rao Desai, Saroja Narsing Rao, Paramasivam Mariappan
Summary: A quick, sensitive, and reproducible analytical method for the determination of 77 multiclass pesticides and their metabolites in Capsicum and tomato by gas and liquid chromatography tandem mass spectrometry was standardized and validated. The method showed good recovery rates and precision, making it suitable for analyzing vegetable samples collected from market and farm gates.
Article
Food Science & Technology
Maciej Tankiewicz
Summary: This study discusses a new approach to assess the permeation of pesticides through apple peel into the pulp. The barrier effect was evaluated using a Franz flow-type vertical diffusion cell system and residue analysis was conducted using a modified QuEChERS method coupled to GC-MS/MS. The results indicate that molecular weight, octanol-water partition coefficient, and water solubility are important factors influencing pesticide absorption.
Article
Food Science & Technology
Sule Aslantas, Ozgur Golge, Miguel Angel Gonzalez-Curbelo, Bulent Kabak
Summary: This study aimed to monitor multi-class pesticide residues in lemon fruits commercialized in Turkey and investigate the transmission of residues from the outer surface of the fruit into its juice. The results showed the presence of various pesticide residues in lemon fruits, but no residues were detected in the juice.
Article
Environmental Sciences
Mohamed H. El-Saeid, Ali M. Al-Turki, Mahmoud E. A. Nadeem, Ashraf S. Hassanin, Mohamed I. Al-Wabel
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2015)
Article
Food Science & Technology
Mohamed Hamza El-Saeid, Haseeb Ahmad Khan
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
(2015)
Article
Chemistry, Multidisciplinary
Mohamed H. El-Saeid, Saleh A. AL-Dosari
ARABIAN JOURNAL OF CHEMISTRY
(2010)
Article
Chemistry, Multidisciplinary
Abdullah S. Al-Farraj, Mohammad I. Al-Wabel, Mohamed Hamza El-Saeid, Ahmed H. El-Naggar, Zaheer Ahmed
JOURNAL OF CHEMISTRY
(2013)
Article
Biology
Mohamed H. El-Saeid, Ashraf S. Hassanin, Abdulqader Y. Bazeyad
Summary: This study aimed to determine the types and levels of organochlorine pesticides in human milk collected from cities in eastern and central Saudi Arabia. Sixteen different OCPs were identified in the 50 milk samples analyzed. The results contribute to assessing the effectiveness of the Stockholm Convention on reducing POPs emissions.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Biology
Mohamed H. EL-Saeid, Ashraf S. Hassanin, Abdulqader Y. Bazeyad, Mubarak T. Al-Otaibi
Summary: This paper introduces a cost-effective and validated method for determining 220 different groups of pesticides and their isomers. The study demonstrates that the use of single Quaid Gas Chromatography Mass Spectrometry -Total Ion Chromatogram GCMS-TIC can successfully analyze pesticides within a short period of time, particularly when using modified method 2 for increased accuracy and clarity.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Mohamed H. El-Saeid, Amal BaQais, Mashael Alshabanat
Summary: Organic pesticides are significant sources of soil pollution in agricultural lands, and their accumulation in human bodies is concerning. In this study, the presence of 18 pesticides in natural soil samples from agricultural lands was investigated, revealing the effectiveness of photocatalytic degradation using TiO2 or ZnO photocatalysts under UV radiation. The results showed that the five most abundant pesticides could be completely degraded within 20-24 hours using these photocatalysts, with TiO2 demonstrating higher activity. Notably, the persistent and toxic organochlorine pesticide heptachlor was completely degraded within 30 hours for the first time in soil using TiO2 photocatalyst.
Article
Multidisciplinary Sciences
Abdulaziz G. Alghamdi, Mohamed H. El-Saeid, Abdulhakim J. Alzahrani, Hesham M. Ibrahim
Summary: This study investigated the concentrations and pollution status of heavy metals in urban dust in different locations of Riyadh City. The results showed that although there were unhealthy respiratory conditions in some areas, overall children and adults in the investigated area were exposed to lower health risks.
Article
Green & Sustainable Science & Technology
Mohamed Hamza EL-Saeid, Adel R. A. Usman
Summary: This study investigated the effects of soil moisture content and two types of organic manure on organic C mineralization and PAH degradation. The results showed that organic amendments increased CO2 release and decreased PAH concentrations, and optimal moisture content enhanced these effects.
Article
Environmental Sciences
Mohamed Hamza EL-Saeid, Abdulaziz G. G. Alghamdi, Abdulhakim Jari Alzahrani
Summary: This study investigates the sources, concentration, and composition of polycyclic aromatic hydrocarbons (PAHs) in road dust in Riyadh City, Saudi Arabia, and assesses their associated health risks. The study found that the concentration of PAHs in road dust varied from 0.01 to 126 ng g(-1), and the estimated lifetime average daily dose (LADD) for adults ranged from 1950 to 16,010 mg kg(-1) day(-1). The results indicate that children are at a higher risk of asthma, respiratory and cardiovascular diseases, and immune suppression compared to adults in the studied area. These findings have important implications for policy guidelines to control PAHs contamination in Riyadh City and protect human health and environmental sustainability.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Environmental Sciences
Hattan A. Alharbi, Khaled D. Alotaibi, Mohamed H. EL-Saeid, John P. Giesy
Summary: This study aimed to assess the contents of polycyclic aromatic hydrocarbons (PAHs) and heavy metals (HMs) in biochars generated from different sources and pyrolysis temperatures. The results showed that the contents of PAHs and HMs in biochar were significantly influenced by the feedstock and pyrolysis temperature. Therefore, the effects of feedstock and pyrolysis temperature should be considered in the production and use of biochar.
Article
Chemistry, Multidisciplinary
M. H. El-Saeid, M. Al-Wabel, A. S. Al-Farraj, A. H. El-Naggar, Zaheer Ahmed
RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT
(2013)