Produção Nacional
Parasitos em alfaces (Lactuca sativa) de mercados e feiras livres de Lages - Santa Catarina
2009; Editora da Pontifícia Universidade Católica do Rio Grande do Sul (EDIPUCRS); Volume: 1; Issue: 2 Linguagem: Inglês
10.15448/1983-652x.2008.2.4368
ISSN1983-652X
AutoresRosiléia Marinho de Quadros, Sandra Márcia Tietz Marques, Douglas Augusto Favaro, Viviane Borges Pessoa, Andréia Aparecida Ribeiro Arruda, Juliana Santini,
Tópico(s)Insect Pest Control Strategies
ResumoObjective: To evaluate the contamination of lettuces (Lactuca saliva) with parasites of Public Health peculiar interest sold in Lages, Santa Catarina. Materials and Methods: A nonprobabilitic intentional sampling method was used, in which eight supermarkets and two public markets were selected according to their scope of activity and sales volume for the town. The 122 samples obtained from eight supermarkets and from two open-air markets were analyzed by the techniques of spontaneous sedimentation (Lutz), centrifugation and fluctuation in zinc sulphate (Faust), centrifugation and fluctuation in sucrose solution (Sheather) and modified Ziehl Neelsen coloration. Results: The total parasitism rate was 88.5% (108/122), 77% (94/122) in the supermarkets samples and 11.5% (14/122) in the open-air markets samples. The Lutz technique has detected 46.7% (57/122) infected lettuces; Sheather and Faust technique identified 31.1% (38/122) and 10.6% (13/122) of lettuces infected with eggs and/or oocysts of parasites, respectively. The Eimeria, Giardia e Entamoeba were the most prevalent genders. Conclusions: The analyzed samples presented low hygienic standards, showing that more intense sanitary inspection is needed during all stages of vegetable productive process.
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