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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.2000.tde-20231122-100506
Document
Author
Full name
Ingrid Ladwig do Amaral Garboggini
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 1999
Supervisor
Title in Portuguese
Pesquisa de Salmonella spp., Campylobacter spp., coliformes totais e Escherichia coli em águas de nascentes (bicas) em Piracicaba-SP
Keywords in Portuguese
CAMPYLOBACTER
SALMONELLA
ÁGUA DE NASCENTE
BACTÉRIAS PATOGÊNICAS
BICAS
COLIFORMES
PIRACICABA-SP
QUALIDADE
Abstract in Portuguese
Neste trabalho foi feita a análise microbiológica das águas de oito nascentes - conhecidas pela população local como “bicas” - da área urbana do município de Piracicaba - SP. As amostras de água foram analisadas quanto à presença de bactérias dos gêneros Salmonella, Campylobacter, de bactérias do grupo coliformes totais, e da espécie Escherichia coli, em vista das constatações de águas contaminadas por tais bactérias, em diversos países. Os testes foram conduzidos no Laboratório de Microbiologia de Alimentos do Departamento de Agroindústria, Alimentos e Nutrição da ESALQ/USP, no período de fevereiro a julho de 1997, incluindo períodos de seca e de chuvas, possibilitando assim, o estudo da correlação entre contaminação das bicas e a época de chuvas. Apesar de não ter sido constatada a presença de Salmonella e Campylobacter nas amostras analisadas, ficou comprovada a presença de coliformes totais e E. coli em todas as nascentes, o que condena a utilização destas águas, para consumo humano, sem tratamento prévio. Relacionou-se, ainda, a época de maior precipitação do período, com a contaminação por E. coli em três bicas.
Title in English
Search of Salmonella spp., Campylobacter spp., total coliforms and Escherichia coli in natural fountains water in Piracicaba-SP
Abstract in English
Eight natural water springs of the urban area in Piracicaba, São Paulo, Brazil were analyzed regarding the presence of bacteria, genus Salmonella, Campylobacter, the total coliforms group and Escherichia coli species, through a six month period. The tests were conducted in the Food Microbiology Laboratory of the Agroindustry, Foods and Nutrition Department, from February to July of 1997, including the dry and rainy seasons, thus allowing the analysis of correlation between natural water springs contamination and pluviometrical precipitation. Although the presence of Salmonella and Campylobacter was not detected among the samples, the presence of total coliforms was verified as well as E. coli on all the analyzed natural water springs, thus disapproving the use of this waters for human consumption purpose, without previous treatment. The contamination by E. coli was also related to the higher pluvial precipitation period, for three natural water springs.
 
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Publishing Date
2023-11-24
 
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