Prevalence of contamination by intestinal parasites in vegetables (Lactuca sativa L. and Coriandrum sativum L.) sold in markets in Belém, northern Brazil
Autor: | Regina Ângela Seixas Pereira, Melanie Dayane Castro da Silva, Alessandro Cardoso Rodrigues, Laine Celestino Pinto |
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Rok vydání: | 2019 |
Předmět: |
Veterinary medicine
030309 nutrition & dietetics Coriandrum Lactuca Food Contamination Biology 03 medical and health sciences 0404 agricultural biotechnology Sativum Helminths Prevalence Parasite hosting Animals Parasites 0303 health sciences Blastocystis Nutrition and Dietetics Amoebida Endolimax nana 04 agricultural and veterinary sciences Lettuce biology.organism_classification 040401 food science Cross-Sectional Studies Trichuris trichiura Agronomy and Crop Science Brazil Food Science Biotechnology |
Zdroj: | Journal of the science of food and agricultureREFERENCES. 100(7) |
ISSN: | 1097-0010 |
Popis: | BACKGROUND Previous studies have recorded a high prevalence of intestinal parasites in lettuce (Lactuca sativa L.) and coriander (Coriandrum sativum L.) destined for human consumption. This study determined the prevalence of contamination by intestinal parasites in these two plants sold in two street markets and two supermarkets in the city of Belem, northern Brazil. RESULTS A total of 200 plant samples were analyzed (100 of each species). The samples were collected randomly between August and October 2018, examined by the spontaneous sedimentation method with two washes, and stored for 24 h. The analysis found that 89% (89/100) of the lettuce samples and 86% (86/100) of the coriander samples were contaminated. Polyparasitism was more frequent in lettuce, but monoparasitism predominated in the coriander. A total of 226 intestinal parasites were found in the lettuce, with a predominance of non-pathogenic parasites in the supermarket samples and more pathogenic parasites in the samples from street markets. In the coriander samples, 172 intestinal parasites were identified, with a predominance of pathogenic parasites in samples from both types of market. In the case of the protozoans, the most prevalent species was Endolimax nana, followed by Blastocystis hominis, in both vegetables. In the helminths, hookworms predominated in the lettuce, and Trichuris trichiura in the coriander. CONCLUSIONS These results highlight the need for the monitoring of parasite contamination in vegetables destined for human consumption. Public health initiatives should include educational campaigns on the importance of disinfecting vegetables prior to consumption. © 2020 Society of Chemical Industry. |
Databáze: | OpenAIRE |
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