Microbiología del agua mineromedicinal del Balneario de Villavieja

The autochthonous and alocthonous microbiota  of the natural mineral water of Villavieja Spahave been studied. The total number of microorganisms in the water was of 4.7 x104/mL and the number of heterotrophic and oligotrophic viable bacteria was 103 cfu/mL. Neither faecal indicators nor pathogenic microorganisms were found in 250 mL of water. The autochthonous microbiota mostly belongsto Gram‐negative bacilli, fromthe PhylumProteobacteria (64.4%) and in smaller percentageto theGram‐positive bacilli (24.4%) and cocci (6.7%). The most frequently found species were Pseudomonas pseudoalcaligenes (15.5%) and Leifsonia aquatica (13.3%). Moreoverammonifying, proteolytic, amylolytic and sulphato‐reducted bacteria have been detected in 100 mL of water, all of them involved in self‐purification process of water.