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TrAC Trends in Analytical Chemistry
Properties and determination of pesticides in fruits and vegetables2011 •
2015 •
The lack of irrigation facilities and poor irrigation system and due to the deficiency of agricultural knowledge, farmers introduce new brands of pesticides for their better production. Unaware of all the facts and health hazards, aim of farmers is only better productivity. Many pesticides are used in the homes, industries, hospitals, for killing pests like mosquitoes, mites, cockroaches, ants, aphids, worms, snails, etc. which are the source of spreading various diseases like mosquito causing malaria, yellow fever and west Neil virus and bees, wasps and ants spreading allergy. The data in part however, has been based on the side effects of pesticides used and one question that should come to our mind is "how much do we really know about pesticides? Keeping these facts in view, the literatures on the excess used of pesticides are reviewed in this paper.
2018 •
Pesticides are very harmful for the environment as well as for the human health. Many studies reported that vegetables like tomato, pumpkin, cucumber, potato, brinjal, etc., that are consumed by people all over the world to get nutrients are contaminated with different pesticides residues. Most of the studies revealed that the presence of pesticides in these vegetables is above the permissible limit. The aim of the chapter is to review the results of previously reported data on levels of different pesticides in the vegetables. The study has also documented the possible health risk factors to the consumers of contaminated vegetables and its impact on the their nutrient value. In order to ascertain the provisions of food suitable for human consumption, it is imperative to monitor pesticides in food commodities by the country’s responsible authority and enforce guidelines based on permissible limits. Pesticides in Vegetables: Their Impact on Nutritional Quality and Human Health
2014 •
Pesticides are poisons in nature and have harmful effects on human health. They are used for suicide, homicide and for other bad intentions. Objective: The aim of the study was to determine the residues of some pesticides in fruits collected from various markets of Lahore. Material & Methods : Eight fruits samples apple, banana, guava, melon, orange, papaya, pomegranate and strawberry from various sale points of the market were collected. Extraction, clean up and analysis were then processed. Concentration of five pesticides including Bifenthrin, Lambda Cyhalothrin, Carbofuran, Chlorpyrifos and Cypermethrin were determined in fruits samples using high performance thin layer chromatography. Spot diameter of pesticide residue of sample was compared with that of standards to determine pesticide concentration. One way ANOVA was applied to determine the significance of difference. Results & Cnoclusion: Significant difference of pesticide presence was identified in some selected fruits (P...
The lack of irrigation facilities and poor irrigation system and due to the deficiency of agricultural knowledge, farmers introduce new brands of pesticides for their better production. Unaware of all the facts and health hazards, aim of farmers is only better productivity. Many pesticides are used in the homes, industries, hospitals, for killing pests like mosquitoes, mites, cockroaches, ants, aphids, worms, snails, etc. which are the source of spreading various diseases like mosquito causing malaria, yellow fever and west Neil virus and bees, wasps and ants spreading allergy. The data in part however, has been based on the side effects of pesticides used and one question that should come to our mind is “how much do we really know about pesticides? Keeping these facts in view, the literatures on the excess used of pesticides are reviewed in this paper.
Chromatography Research International
Determination of Insecticide Residues in Vegetal Fruits2011 •
Pesticides compounds represent an important class of pollutants for food, soil and surface water resources. Thus, a simplified method using gas chromatography was used for determining five insecticide residues in fruit samples produced in Ceará State (Brazil). The insecticides were simultaneously extracted from the fruit samples with a mixture of water-methanol (1 : 1% v/v) from lipid-containing crops and then reextracted with ethyl acetate. Cleanup by silica gel column chromatography was not necessary. The extracts were analyzed by GC-ECD. Analytical parameters, such as limit of detection (LOD), limit of quantification (LOQ), linearity, precision, and recovery were considered for the orange fruit. A sufficient recovery of 52.1, 57.0, 49.5, and 108.5% for parathion methyl, malathion, chlorpyrifos, and 2,4-dichlorophenol was found. The compounds 2,4-dichlorophenol, malathion, parathion methyl, and chlorpyrifos were found in all the fruit samples analyzed.
Journal of Applied and Natural Science
Pesticide residues analysis in farm gate vegetables of agricultural areas in Tumakuru district, Karnataka, IndiaThe main purpose of this experiment was to understand pesticide residues persistence and their toxicity level in vegetables. In the present study pesticide residues in tomato (Solanum lycopersicum) and capsicum (Capsium annuum L.) vegetables cultivated in Tumakuru, Gubbi, Kunigal and Pavagada taluks in Tumkur district were analysed. In methodology, samples of 1 kg each were collected, cut into small pieces, macerated in a grinder and used for the analysis. Pesticides were quantified by gas chromatography-mass spectrometry (GC-MS). Results showed tomato samples of Pavagada recorded acephate (0.346 mg/kg), dichlorvos (0.189 mg/kg), fenvalerate (0.057 mg/kg) and Tumakuru samples recorded phorate (0.072 mg/kg) residues higher than MRLs (Maximum residue levels). Chlorpyrifos, cyhalothrin-g and cypermethrin were below detection level (BDL) in all the samples. Cyfluthrin-β recorded highest in Kunigal samples (0.294 mg/kg), Tumakuru and Gubbi samples showed BDL. Deltamethrin was highest in Pavagada (0.296 mg/kg) samples and Tumakuru and Kunigal samples revealed BDL. Pavagada samples (0.026 mg/kg) showed monocrotophos residues higher than MRLs. In capsicum samples, acephate residue was highest in Tumakuru samples (0.333 mg/kg), highest chlorpyrifos (0.153 mg/kg) in Kunigal samples, deltamethrin (0.381 mg/kg), fenvalerate (0.168 mg/kg) and phorate (0.089 mg/kg) residues were higher than MRLs in Pavagada samples. Cyfluthrin-β (0.045 mg/kg) was high in Tumakuru and dichlorvos (0.042 mg/kg) high in Pavagada samples. Cyhalothrin-g, cypermethrin and monocrotophos were BDL in all the samples. An attempt has been made to assess the different pesticides usage and their adverse impacts on vegetables, which are backbone to afford assistance for an extensive array of investigators.
2014 •
Human nutrition on the world was affected with increasing population and environment pollution. It is continuously rising with irrigation, better cultivation of lands, seed improvement, and fertilization. However, a significant amount of yield is destroyed by harmful plants, animals, and microorganisms both before and after the harvest. Among the genetic, biotechnical, mechanic and chemical methods used to protect agricultural products from illnesses and pests not only in-production but also in storing, transporting, processing, marketing and consumption, the chemical methods are the most efficient ones. These chemicals which mix with surface and ground waters accumulate in the bodies of water organisms and go into the food chain of human beings. Konya is named as granary for Turkey with the biggest land side for agriculture. The biggest land mean is the largest amount of pesticide usage. It is really necessary to know the pesticide residue in nutrition. In this study, it has been i...
IOSR Journals
A Study of the Effects of pesticides on nutritional content of some selected Vegetables.2019 •
While the primary aim of pest control in agriculture is to improve crop yield for the ever increasing world population, their residue often have other effects on the plant. This study was conducted to determine the effects of pesticide residues on the proximate composition of some vegetables. The vegetables:Lactuca sativa L, Amaranthus hybridus L., and Solanum lycopersicum L. were sprayed with pesticides. The pesticides: Benlate, Mencozeb and Milzeb were applied into the vegetables at 5,50 and 100mg/ml. The effects of pesticides on the nutritional content of the selected vegetables were observed. The results obtained showed thatthere was significant differences (P>0.05) in nutritional content between plant sprayed with pesticides and the control. Control has the highest percentage of nutrients with 0.47 and (5mg/ml) recorded the least (0.28) for nitrogen content.
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