14C-Dimethoate Residues in Tomatoes and Tomato Products

Aysal, Perihan; Tiryaki, Osman; Tunçbilek, Aydin

doi:10.1007/s00128-004-0435-8

Cited by 14 publications

(7 citation statements)

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“…Reports are available on chlorpyrifos residues in food chain (Aysal et al 2004). Maximum chlorpyrifos residue level of 0.5 mg/kg for rice, a supervised trials median residue of 0.12 mg/kg, and a highest residue level of 0.28 mg/kg were estimated from data of supervised trials on rice conforming to Good Agricultural Practise conducted in Columbia, the Philippines, Thailand, Vietnam, and India (WHO and FAO 2004).…”

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confidence: 99%

Chlorpyrifos degradation by the cyanobacterium Synechocystis sp. strain PUPCCC 64

Singh

Khattar

Nadda

et al. 2011

Environ Sci Pollut Res

104

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confidence: 99%

Chlorpyrifos degradation by the cyanobacterium Synechocystis sp. strain PUPCCC 64

Singh

Khattar

Nadda

et al. 2011

Environ Sci Pollut Res

104

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“…Tomato and cucumber are two of the most important vegetable crop of the tropical and subtropical regions of the world (11). During the last decade, several studies were conducted on vegetable crops such as tomato and cucumber contamination with pesticides (12)(13)(14)(15)(16)(17). Therefore, it is important to make sure that the residue levels of the pesticides at the time of harvesting vegetable crops (e.g.…”

Section: Introductionmentioning

confidence: 99%

Pesticide Multiresidue Analysis in Tomato and Cucumber Samples Collected from Fruit and Vegetable Markets in Tehran, Iran

Amrollahi

Pazoki

Imani

2018

Middle East J Rehabil Health Stud

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Background: The organophosphorus pesticides are still applied in some developing countries including most regions of Iran. It is important to make sure that the level of pesticide residues at the time of harvesting vegetable crops (e.g. tomato and cucumber) is assessed in order to control that their levels are within the permissible limit in the domestic as well as overseas markets; and most importantly the governments should ban the application of such compounds. Regarding the increasing consumption of pesticides in agriculture, the current study aimed at determining the amount of pesticide residues in crops such as tomatoe and cucumber to ensure that Codex maximum residue limit (MRL) alimentarius is not violated. Methods: A simple multiresidue method, using gas chromatography-mass spectrometry (GC-MS) and solid phase extraction, was employed to detect the pesticides with a sufficient extraction method. Results: The lowest level of pesticide residues were concerning carbaryl, fenpropat, and endosulfan in cucumber samples selected from greenhouses and fields with 11.1%, while the highest level was concerning diazinon in cucumber samples of the fields with 55.5%. Carbaryl and permethrin showed the high residue means of 0.37 and 0.72 µg/g in tomato and cucumber samples, respectively. Conclusions: Vegetables and fruits with a high level of pesticide residues, which particularly violated the MRL, are sold in markets of Tehran, Iran. Therefore, it is suggested that the application of pesticides on fields and greenhouses be controlled and their residue levels be measured using the multiresidue method before distribution. The current study findings showed that the multi-residue method with GC/MS could detect a large number of pesticide residues at the same time with high accuracy. Therefore, it is recommended that this method be employed for all vegetables and fruits in order to assess their pesticide residue levels before reaching the markets.

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“…(Howard, 1991; Singh and Walker, 2006). There is also a growing concern of widespread contamination of the environment leading to potential risks to non-target organism because of its entry in the food chain (Aysal et al, 2004; Chandra et al, 2010; Muhammad et al, 2010) and undesirable health issues to humans that include developmental toxicity, liver damage, reproductive defects, endocrine disruptions, nervous system disorders, and immune system abnormalities (Furlong et al, 2006; Rauh et al, 2011; Terry, 2012; Alavanja et al, 2013). The acute toxicity of CP has also been reported in some animals including aquatic invertebrates and fishes, arthropods, and soil microorganisms (Michereff-Filho et al, 2004; Palma et al, 2008; Tuzmen et al, 2008; Dutta et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Isolation and Molecular Characterization of Novel Chlorpyrifos and 3,5,6-trichloro-2-pyridinol-degrading Bacteria from Sugarcane Farm Soils

et al. 2017

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Chlorpyrifos (CP) is one of the most widely used organophosphate pesticides in agriculture worldwide, but its extensive use has led to the contamination of various soil and water systems. Microbial bioremediation is considered to be one of the most viable options for the removal of CP from the environment; however, little is known about the soil bacterial diversity that degrade CP. Sequential soil and liquid culture enrichments enabled the isolation of bacterial CP degraders with sequence homologies to Xanthomonas sp., Pseudomonas sp., and Rhizobium sp. The efficacy of the three isolated strains: Xanthomonas sp. 4R3-M1, Pseudomonas sp. 4H1-M3, and Rhizobium sp. 4H1-M1 was further investigated for biodegradation of CP and its primary metabolic product, 3,5,6-trichloro-2-pyridinol (TCP). The results indicate that all three bacterial strains almost completely metabolized CP (10 mg/L) and TCP, occurring as a metabolic degradation product, in mineral salt media as a sole source of carbon and nitrogen. The isolated bacterial strains Xanthomonas sp. 4R3-M1 and Pseudomonas sp. 4H1-M3 could also degrade TCP (10 mg/L) as a sole carbon and nitrogen source, when provided externally. Thus, these bacterial strains may be effective in practical application of bioremediation of both CP and TCP.

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14C-Dimethoate Residues in Tomatoes and Tomato Products

Cited by 14 publications

References 0 publications

Chlorpyrifos degradation by the cyanobacterium Synechocystis sp. strain PUPCCC 64

Chlorpyrifos degradation by the cyanobacterium Synechocystis sp. strain PUPCCC 64

Pesticide Multiresidue Analysis in Tomato and Cucumber Samples Collected from Fruit and Vegetable Markets in Tehran, Iran

Isolation and Molecular Characterization of Novel Chlorpyrifos and 3,5,6-trichloro-2-pyridinol-degrading Bacteria from Sugarcane Farm Soils

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