Column Extraction of Residues of Several Pesticides from Fruits and Vegetables: A Simple Multiresidue Analysis Method

Kadenczki, Lajos; Arpad, Zoltan; Gardi, Ivan; Ambrus, Árpád; Gyõrfi, L.; Reese, Gabriela; Ebing, W.

doi:10.1093/jaoac/75.1.53

Cited by 69 publications

(12 citation statements)

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“…Chemical analysis and cell wall constituents of berseem hay, untreated and treated WMV with fungus are presented in Table (1). The concentration of pesticides residues of watermelon vines was shown in Table (2), it was determinated according to method described by Kadenczki et al (1992).…”

Section: Cultivation Proceduresmentioning

confidence: 99%

Improving the Nutritive Value of Watermelon Vines and Its Effect on Productive Performance of Growing Lambs

Fayed

Hassan

Khalel

et al. 2019

Journal of Animal and Poultry Production

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This experiment was conducted to study the effect of using biological treatment by (Trichoderma reesei), to reduce the content of antinutritional factors in watermelon vines and improvement their nutritive value and the possibility of using it in animal nutrition and its effect on productive performance of growing lambs. Fifty male Barki lambs at 6 to 8 months of age with an average live body weight 24.49 ±0.2 Kg were divided into five similar groups according to their live body weight (10 lambs for each). They were randomly assigned to receive the five experimental rations where control group was fed 50% concentrate feed mixture (CFM) plus 50% berseem hay (BH ) on dry DM basis (R1) and the other four groups R2, R3, R4 and R5 were fed rations containing 25 or 50 % untreated watermelon vines hay (WMVH) and treated with Trichoderma reesei fungi (WMVF), respectively. Animals were fed the five respective rations in groups. The growth experiment lasted for sex months. Results showed that degradation of antinutritional factors was more efficient when WMV hay biologically treated with fungi (Trichoderma reesei). The values of antinutritional factors of the watermelon vines reduced as follows: total phénols by 53.43%, total tannins 71.38%, saponins 63.67%, alkaloids 44.02% and flavonoids 16.98%, compared with untreated vines. Control ration (R1) and the tested ration (R4) had higher DM intake than the other tested ones (R2, R3 and R5), being ration R3 had the lowest value. Animal fed R4 showed more soluble, degradable, less undegradable fractions and more effective degradability. The values of final body weight, total body weight gain and daily gain were significant lower for tested rations R2, R3 and R5 than those of control one (R1), while the tested ration R4 was similar in these values with those of control one, being the highest values among all tested rations. The feed conversion as (g DMI/g gain) was worse with all tested rations related to that of control one, whereas R4 had the best feed conversion value among all tested ones. The values of feed conversion recorded 6.93 and 7.05 for R1 & R4 and 8.22 & 8.73 for R2 and R5, respectively, while the worst value was recorded with R3 (8.96). The feed cost was decreased by 11.98 and 25.62 for R2 & R3 (rations which contained 25 or 50% untreated watermelon vines) and 11.78 & 24.59 for R4 and R5 (rations which contained 25 or 50% watermelon vines treated with fungi) respectively, compared with the figure of control one (R1). The economic efficiency improved by 23.64% for R4 compared with control group (R1) and the other tested rations (R2, R3 and R5). The results could be indicated the possibility of introducing biologically treated watermelon vines with fungi in growing lambs rations up to 25% (i.e. 50% in replacing of berseem hay) to reduce the feed costs without harmful effects on their performance and health.

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Section: Cultivation Proceduresmentioning

confidence: 99%

Improving the Nutritive Value of Watermelon Vines and Its Effect on Productive Performance of Growing Lambs

Fayed

Hassan

Khalel

et al. 2019

Journal of Animal and Poultry Production

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“…Those samples, which were not immediately analyzed due to any reason, were stored at -40°C until their analysis to avoid any degradation of pesticide residues during ordinary storage. Extraction of residues: Residues of OCPs were extracted from the homogenized sample using the method of Kadenezki et al (1992) with some modifications illustrated by Khan et al (2009). Ethyl acetate, an extracting solvent, was added to blended 1kg chopped sample.…”

Section: Selection Of Fieldmentioning

confidence: 99%

Organo-Chlorine Pesticide Residues in Okra and Brinjal Collected From Peri-Urban Areas of Big Cities of Punjabpakistan

Randhawa¹,

Abid²,

Anjum³

et al. 2016

PAKJAS

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Exposure of organo-chlorine pesticides as a result of utilization of okra and brinjal to urban population has been estimated in this study. GC-ECD was used for quantification of α-endosulfan, β-endosulfan, endosulfan sulphate, HCH, Gamma HCH, DDT and DDE residues from 180 samples of okra and brinjal collected from peri-urban farming area of Faisalabad, Multan and Gujranwala. Quantification of pesticide residues revealed that 280 samples were contaminated and 23 samples showed residues value higher than MRL'S. Out of 280 contaminated samples, 50 samples were contaminated with α-endosulfan, 48 samples with β-endosulfan,49 with endosulfan sulphate, 27 samples with HCH, 33 samples with gamma HCH, 34 samples with DDT and 39 were contaminated with DDE. Overall, 7.33% samples of okra and 6.44% samples of brinjal contaminated with α-endosulfan exceeded EU MRL of 0.05 mg kg-1 , 8.67% samples of okra and 7.33% samples of brinjal had β-endosulfan residue level above MRL of 0.05 mg kg-1 and approximately, 8.67% samples of okra and 7.33% samples of brinjal had endosulfan sulphate residue level above MRL of 0.05 mg kg-1. While, no sample of okra and brinjal had HCH, Gamma HCH, DDT and DDE level above MRL of 0.01, 0.01, 0.05 and 0.05 mg kg-1 , respectively. This study may be helpful in creating a database about regional exposure of urban population and facilitate in evaluation of potential threat and risk to their health in daily life.

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“…Matrix solid‐phase dispersion (MSPD) is another extraction and cleanup technique that has been developed to avoid the general drawbacks of liquid–liquid partitioning and SPE columns, such as the use of large amounts of solvent and the occurrence of troublesome emulsions from certain fruits or vegetables that impede and block the flow . The procedure of MSPD involves blending a small amount of matrix with C 18 (octadecylsilyl‐derivatized silica) followed by washing with a small amount of solvent and eluting to extract a wide range of compounds in a single process .…”

Section: Trends In Sample Cleanupmentioning

confidence: 99%

Quick, easy, cheap, effective, rugged, and safe sample preparation approach for pesticide residue analysis using traditional detectors in chromatography: A review

Rahman

El‐Aty

Kim

et al. 2016

J of Separation Science

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In pesticide residue analysis, relatively low-sensitivity traditional detectors, such as UV, diode array, electron-capture, flame photometric, and nitrogen-phosphorus detectors, have been used following classical sample preparation (liquid-liquid extraction and open glass column cleanup); however, the extraction method is laborious, time-consuming, and requires large volumes of toxic organic solvents. A quick, easy, cheap, effective, rugged, and safe method was introduced in 2003 and coupled with selective and sensitive mass detectors to overcome the aforementioned drawbacks. Compared to traditional detectors, mass spectrometers are still far more expensive and not available in most modestly equipped laboratories, owing to maintenance and cost-related issues. Even available, traditional detectors are still being used for analysis of residues in agricultural commodities. It is widely known that the quick, easy, cheap, effective, rugged, and safe method is incompatible with conventional detectors owing to matrix complexity and low sensitivity. Therefore, modifications using column/cartridge-based solid-phase extraction instead of dispersive solid-phase extraction for cleanup have been applied in most cases to compensate and enable the adaptation of the extraction method to conventional detectors. In gas chromatography, the matrix enhancement effect of some analytes has been observed, which lowers the limit of detection and, therefore, enables gas chromatography to be compatible with the quick, easy, cheap, effective, rugged, and safe extraction method. For liquid chromatography with a UV detector, a combination of column/cartridge-based solid-phase extraction and dispersive solid-phase extraction was found to reduce the matrix interference and increase the sensitivity. A suitable double-layer column/cartridge-based solid-phase extraction might be the perfect solution, instead of a time-consuming combination of column/cartridge-based solid-phase extraction and dispersive solid-phase extraction. Therefore, replacing dispersive solid-phase extraction with column/cartridge-based solid-phase extraction in the cleanup step can make the quick, easy, cheap, effective, rugged, and safe extraction method compatible with traditional detectors for more sensitive, effective, and green analysis.

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Column Extraction of Residues of Several Pesticides from Fruits and Vegetables: A Simple Multiresidue Analysis Method

Cited by 69 publications

References 0 publications

Improving the Nutritive Value of Watermelon Vines and Its Effect on Productive Performance of Growing Lambs

Improving the Nutritive Value of Watermelon Vines and Its Effect on Productive Performance of Growing Lambs

Organo-Chlorine Pesticide Residues in Okra and Brinjal Collected From Peri-Urban Areas of Big Cities of Punjabpakistan

Quick, easy, cheap, effective, rugged, and safe sample preparation approach for pesticide residue analysis using traditional detectors in chromatography: A review

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