Mineral water: a microbiological approach

Autor(es)

Falcone-Dias, Maria Fernanda ^[1] ; Emerick, Guilherme L. ^[2] ; Farache-Filho, Adalberto ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Sch Pharmaceut Sci, Food & Nutr Grad Program, Araraquara, SP - Brazil

^[2] Univ Estadual Paulista, UNESP, Sch Pharmaceut Sci, Pharmaceut Sci Grad Program, Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY; v. 12, n. 5, p. 556-562, 2012.
• Citações Web of Science: 1

Resumo

The microbiological quality of bottled mineral water of various domestic brands sold in Brazil was investigated, with particular focus on the heterotrophic plate count (HPC). Neither total coliforms nor Escherichia coil were found in any 1.5 L bottle samples. Total coliforms were found in 2.9% of the small bottles, while in 20 L bottles the presence of total coliforms and E. coil was demonstrated in 15.5 and 2.4% of samples, respectively. Pseudomonas aeruginosa was detected in 4.3, 4.5 and 9.5% of small, 1.5 and 20 L bottles, respectively. In 36.4% of the samples of 1.5 L bottles, the HPC was above 500 cfu/mL. This percentage of samples with an HPC above 500 cfu/mL increased to 52.0 and 61.9% in small and 20 L bottles, respectively. Higher contamination by total coliforms, E. coil, P. aeruginosa and HPCs occurred in 20 L bottles. In conclusion, several samples in this study were outside the international quality standard for mineral water and the large number of samples with high HPCs shows that more work must be done on the use of HPC in mineral water and the damaging effects that these microorganisms may cause to humans. The bottled mineral water was confirmed as a particularly important public health problem, due to the poor microbiological quality of the products that are marketed. (AU)

• Processo FAPESP: 09/51048-8 - Avaliação de neurotoxicidade de formas enantioméricas de praguicidas organofosforados: um estudo comparativo em células humanas e de galinhas
• Beneficiário: Guilherme Luz Emerick
• Modalidade de apoio: Bolsas no Brasil - Doutorado