ABSTRACT
The increasing demand for propolis has caused a raise in its production. However, an increasingly pesticide-dependent agriculture is a great concern with regard to bees, their produce and environmental contamination. Current analysis evaluates the presence of pesticides (organochlorines, organophosphates, pyrethroids, carbamates, herbicides, fungicides and acaricides) in samples of propolis from the state of São Paulo, Brazil. Beekeepers from several localities in the state provided samples of propolis (50), which were collected, stored in non-toxic plastic bags and maintained in a freezer for analyses. Possible pesticide residues were examined by gas chromatography method but no pesticide residues were detected in the examined propolis samples. Propolis analyzed in the state of São Paulo did not show any pesticide contamination.
The increasing demand for propolis has caused a raise in its production. However, an increasingly pesticide-dependent agriculture is a great concern with regard to bees, their produce and environmental contamination. Current analysis evaluates the presence of pesticides (organochlorines, organophosphates, pyrethroids, carbamates, herbicides, fungicides and acaricides) in samples of propolis from the state of São Paulo, Brazil. Beekeepers from several localities in the state provided samples of propolis (50), which were collected, stored in non-toxic plastic bags and maintained in a freezer for analyses. Possible pesticide residues were examined by gas chromatography method but no pesticide residues were detected in the examined propolis samples. Propolis analyzed in the state of São Paulo did not show any pesticide contamination.
ABSTRACT
The increasing demand for propolis has caused a raise in its production. However, an increasingly pesticide-dependent agriculture is a great concern with regard to bees, their produce and environmental contamination. Current analysis evaluates the presence of pesticides (organochlorines, organophosphates, pyrethroids, carbamates, herbicides, fungicides and acaricides) in samples of propolis from the state of São Paulo, Brazil. Beekeepers from several localities in the state provided samples of propolis (50), which were collected, stored in non-toxic plastic bags and maintained in a freezer for analyses. Possible pesticide residues were examined by gas chromatography method but no pesticide residues were detected in the examined propolis samples. Propolis analyzed in the state of São Paulo did not show any pesticide contamination.
The increasing demand for propolis has caused a raise in its production. However, an increasingly pesticide-dependent agriculture is a great concern with regard to bees, their produce and environmental contamination. Current analysis evaluates the presence of pesticides (organochlorines, organophosphates, pyrethroids, carbamates, herbicides, fungicides and acaricides) in samples of propolis from the state of São Paulo, Brazil. Beekeepers from several localities in the state provided samples of propolis (50), which were collected, stored in non-toxic plastic bags and maintained in a freezer for analyses. Possible pesticide residues were examined by gas chromatography method but no pesticide residues were detected in the examined propolis samples. Propolis analyzed in the state of São Paulo did not show any pesticide contamination.
ABSTRACT
This work aimed to evaluate the quality of 31 honey samples of Apis mellifera L. from São Paulo (28) and Mato Grosso do Sul States (3), Brazil, through physical-chemical analyses (diastase yeast, free acidity, pH, hidroximethylfurfural (HMF) and humidity). All samples show values according Brazilian legislation to diastase yeats and free acidity. Six samples to HMF and one for humidity show values above the to legislation patterns and the pH of samples show slightly acid. Most of the honey samples analyzed are in agreement with the patterns quality parameters in the legislation for the five evaluated parameters, showing the good quality of Brazilian honey.
O objetivo deste trabalho foi avaliar a qualidade de 31 amostras de méis de abelhas Apis mellifera L. provenientes dos Estados de São Paulo (28) e Mato Grosso do Sul (3), por meio de análises físico-químicas (pesquisa de fermentos diastásicos, acidez livre, pH, hidroximetilfurfural - HMF e umidade). Todas as amostras apresentaram valores dentro do estabelecido pela legisla- ção brasileira para pesquisa de fermentos diastásicos e acidez livre, seis amostras para HMF e uma para umidade apresentaram valores acima do estabelecido pela legislação brasileira, e o pH das amostras apresentou-se ligeiramente ácido. De acordo com os resultados obtidos, pode-se concluir que a maioria das amostras de méis analisadas está de acordo com os padrões de qualidade estabelecidos pela legislação em vigor, para os cinco parâmetros avaliados, evidenciando a adequada qualidade das amostras de mel analisadas.
ABSTRACT
This work aimed to evaluate the quality of 31 honey samples of Apis mellifera L. from São Paulo (28) and Mato Grosso do Sul States (3), Brazil, through physical-chemical analyses (diastase yeast, free acidity, pH, hidroximethylfurfural (HMF) and humidity). All samples show values according Brazilian legislation to diastase yeats and free acidity. Six samples to HMF and one for humidity show values above the to legislation patterns and the pH of samples show slightly acid. Most of the honey samples analyzed are in agreement with the patterns quality parameters in the legislation for the five evaluated parameters, showing the good quality of Brazilian honey.
O objetivo deste trabalho foi avaliar a qualidade de 31 amostras de méis de abelhas Apis mellifera L. provenientes dos Estados de São Paulo (28) e Mato Grosso do Sul (3), por meio de análises físico-químicas (pesquisa de fermentos diastásicos, acidez livre, pH, hidroximetilfurfural - HMF e umidade). Todas as amostras apresentaram valores dentro do estabelecido pela legisla- ção brasileira para pesquisa de fermentos diastásicos e acidez livre, seis amostras para HMF e uma para umidade apresentaram valores acima do estabelecido pela legislação brasileira, e o pH das amostras apresentou-se ligeiramente ácido. De acordo com os resultados obtidos, pode-se concluir que a maioria das amostras de méis analisadas está de acordo com os padrões de qualidade estabelecidos pela legislação em vigor, para os cinco parâmetros avaliados, evidenciando a adequada qualidade das amostras de mel analisadas.