Prevalence of helminth eggs on raw vegetables used for salads

Kozan, Esma; Gönenç, Bahadır; Sarımehmetoğlu, Oğuz; Ayçıçek, Hasan

doi:10.1016/j.foodcont.2004.02.005

Cited by 90 publications

(82 citation statements)

References 12 publications

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“…Choi and Lee (1972) found Ascaris eggs in 49.0 % of 147 lettuce samples that were collected from markets in Taegu (Korea). Data from a recent study carried out in Ankara (Turkey) showed the presence of Toxocara eggs on 1.5 % and Ascaris eggs on 1.0 % of unwashed vegetables (Kozan et al, 2005). The liquid manure and other natural fertilizer used are implicated as a major route of direct contamination of fruit and vegetables with eggs of helminths (Stott et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…cowpat, water from sources contaminated with human and animal excrement) to fertilize vegetables and fruits has been reported to be responsible for their high rates of contamination with helminth eggs (Takayanagui et al, 2000;Ulukanligil et al, 2001). In Turkey, helminth eggs were detected in 12 (5.9 %) of 203 unwashed samples of raw vegetables from wholesalers in Ankara (Kozan et al, 2005) where Toxocara spp.…”

Section: Introductionmentioning

confidence: 99%

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Contamination of the soil by eggs of geohelminths in rural areas of Lodz district (Poland)

Błaszkowska

Kurnatowski

Damiecka³

2011

Helminthologia

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SummaryContamination of soil with helminth eggs in the samples of fields, kitchen gardens, yards and composts in rural areas of Lodz district (Poland) was investigated. In this study, helminth eggs were found in 60 -100 % of field samples, in 20 -100 % of yards samples, in 0 -20 % of kitchen gardens samples and in 10 -100 % of composts. The highest average density of helminth eggs in 100 g of soil was detected in composts (44.0), then fields (28.5) and yards (18.0). In samples taken from kitchen gardens the average density of eggs was 0.4/100/g of soil. The comparison of frequency of positive samples from fields, kitchen gardens and yards did not exhibit significant difference (p > 0.05). The soil samples of fields contained mainly eggs of Ascaris spp. (87.7 %), less frequently Toxocara spp. (7.7 %) and Trichuris spp. (3.5 %). In samples from yards among detected eggs the most often were Toxocara spp. (73.9 %), and there were statistically significant differences in comparison with fields (7.7 %) and composts (0.3 %). The highest prevalence of eggs with moving larva was noted in yards (25.6 %), which differ statistically significantly from analogous value for fields (p < 0.05) and composts (p < 0.0001). These results showed a considerable infestation of soil with geohelminth eggs of the examined rural areas of Lodz district which is a potential source of antropozoonosis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contamination of the soil by eggs of geohelminths in rural areas of Lodz district (Poland)

Błaszkowska

Kurnatowski

Damiecka³

2011

Helminthologia

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“…During the past years, by using man-made fertilizer and now because of using animal fertilizer, vegetables are infected by pathologic organisms and if we do not wash properly, they can transmit the parasites and other microorganisms to the human, and they can be a potential source of expanding infection in parasites life cycle (3). Different studies in all over the world has been performed in this regard and the results showed that there are noticeable parasitic contamination in different areas (4)(5)(6)(7)(8)(9)(10). Parasitic contaminations were studied in different researches in our country and the results of such studies showed that parasitic prevalence is different in each region.…”

Section: Introductionmentioning

confidence: 90%

Parasitic Contamination of Raw Vegetables in Amol, North of Iran

Siyadatpanah

Tabatabaei

Zeydi

et al. 2013

Arch Clin Infect Dis

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Background:One of the most important ways of pathologic and non-pathologic parasites transmission is through eating raw vegetables. Iranian people believe that eating raw vegetables is an important way to get some essential vitamins and minerals. Objectives: According to the high prevalence of pathologic parasites and also exporting different vegetables to the other provinces such as Tehran, we conducted this study to evaluate the parasitic pollution of raw vegetables in Amol city. Materials and Methods: This is a descriptive and analytic study compromised of 200 samples from 10 different vegetables including spinach, garden cress, parsley, lettuce, peppermint, radish, green onion, basil, coriander and scallion. The samples were evaluated using timely-sediment method and then centrifuging concentrating. The obtained results were analyzed by SPSS software and χ 2/Fisher's Exact Test. Results: Results showed that 93 (46.5%) of all vegetables (collected from 20 regions) were contaminated with pathologic and nonpathologic parasites. Among these, spinach and coriander were the highest (17.2%) and the lowest (3.2%) contaminated samples, respectively. The isolated parasites were nematode larva 25.8%, Giardia cyst 22.5%, Entamoeba coli cyst 19.3%. However, the obtained results from 100 restaurants and kebab samples did not show any parasitic contamination. Conclusions: Given hygiene issues and health status of people, the prevalence of some parasitic contaminations is the biggest problems among vegetable consumers. Using organized and new methods for irrigating the agricultural fields, preventing animals to enter the vegetable's farmlands and also improving people's knowledge on proper washing of vegetables can be useful in decreasing parasites prevalence.

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“…Para evaluar el riesgo de contaminación de los pastos sembrados con adición de biosólidos, se recolectaron muestras de las parcelas ya descritas: 30 en la primera fase y 15 en la segunda. Cada muestra estaba compuesta, a su vez, por otras cinco recolectadas al azar en cada parcela, las cuales se analizaron dentro de las 24 horas después de su recolección, garantizando la correspondiente cadena de custodia (17).…”

Section: Evaluación De Los Huevos De Helmintos En El Pastounclassified

Helminth eggs as parasitic indicators of fecal contamination in agricultural irrigation water, biosolids, soils and pastures

et al. 2018

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Introducción. La disposición de las aguas residuales y de los biosólidos provenientes de los sistemas de depuración es una práctica común en la agricultura debido a su alta concentración de nutrientes, lo cual mejora el rendimiento de las cosechas. Sin embargo, la presencia en ellos de microorganismos patógenos de origen fecal genera riesgos sanitarios para los agricultores y los consumidores.Objetivo. Determinar la presencia y la concentración de huevos de helmintos en aguas utilizadas para riego agrícola, así como en biosólidos, suelos y pasto.Materiales y métodos. Se recolectaron y analizaron muestras de agua, biosólidos, suelos y pasto, para la detección y el conteo del total de huevos de helmintos y de huevos viables, y para la evaluación de su comportamiento en aguas utilizadas en el riego agrícola y el cultivo de pasto para ganado lechero en los que se habían utilizado biosólidos como enmienda orgánica.Resultados. En las aguas se encontraron concentraciones totales de 0,1 a 3 huevos de helmintos por litro y de 0,1 a 1 huevos viables de helmintos por litro. En biosólidos y suelos, hubo entre 3 y 22 huevos de helmintos por 4 g de peso seco, y entre 2 y 12 huevos viables por 4 g de peso seco. En los pastos, hubo un número total de menos de 2 a 9 huevos de helmintos por g de peso fresco y menos de 1 a 3 huevos viables por g de peso fresco. La permanencia en cada una de las matrices varió de días a meses, lo cual puede representar un riesgo sanitario para la población que trabaja en los cultivos ypara los consumidores.Conclusiones. La presencia de huevos de helmintos en las matrices evaluadas confirmó el riesgo sanitario de este tipo de entornos, por lo cual es importante su control e inclusión en las normas sobre el uso de aguas residuales y biosólidos en la agricultura.

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Prevalence of helminth eggs on raw vegetables used for salads

Cited by 90 publications

References 12 publications

Contamination of the soil by eggs of geohelminths in rural areas of Lodz district (Poland)

Contamination of the soil by eggs of geohelminths in rural areas of Lodz district (Poland)

Parasitic Contamination of Raw Vegetables in Amol, North of Iran

Helminth eggs as parasitic indicators of fecal contamination in agricultural irrigation water, biosolids, soils and pastures

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