Bacteriological and physico-chemical analysis of sachet water in North Central Nigeria

Abstract

Fifteen samples, made up of five brands of sachet packaged water samples labelled as A, B, C, D and E in Minna metropolis were examined for bacteriological and physico-chemical properties. The bacteriological quality of the water samples were examined using multiple tube techniques (MPN). All the five brands of packaged sachet water samples contained bacteria. Brand A showed a high average index of 398MPN/100ml, brand B has 49MPN/100ml, brand C has 18.8MPN/100ml and brand D had 7MPN/100ml while brand E had 12MPN/100ml. The isolates were identified as Escherichia coli, Streptococcus feacalis, Bacillus subtilis, Staphylococcus spp, Pseudomonas aeruginosa, Klebsiella spp and Salmonella typhii. The physico-chemical parameters were also determined using standard methods; whose values fell below WHO standards for drinking water except manganese whose values exceeds the maximum permitted limit for water quality of the standard organisation of Nigeria (SON). .