TY - JOUR
T1 - Microbiological quality of bottled water obtained from mexican small water purification plants
T2 - A pilot study, carried out in Morelia (central Mexico)
AU - Soria-Herrera, Ricardo Jiovanni
AU - Dominguez-Gonzalez, Karla Gabriela
AU - Rumbo-Pino, Rebeca
AU - Piña-Lazaro, Arizbeth
AU - Rivera-Gutierrez, Sandra
AU - Salas-Rangel, Laura Patricia
AU - Ortiz-Alvarado, Rafael
AU - Gonzalez-Y-merchand, Jorge Alberto
AU - Yahuaca-Juarez, Berenice
AU - Cerna-Cortes, Jorge Francisco
N1 - Publisher Copyright:
© 2020, International Association for Food Protection 2900 100th Street, Suite 309, Des Moines, IA 50322-3855.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - The aim of this work was to begin to determine the microbiological quality of bottled water samples obtained from small purification plants located in Morelia, Michoacan, Mexico. Various microorganisms were taken into account, including nontuberculous mycobacteria (NTM) species. All 20 samples analyzed were positive for aerobic mesophilic bacteria. Eleven (55%), 6 (30%), and 2 (10%) water samples were positive for total coliforms, fecal coliforms, and Escherichia coli, respectively. In total, 18 (90%) of the water samples exceeded the maximum allowed limit stipulated by Mexico’s official guidelines, establishing that purified water must not exceed the limit of 2 log CFU/mL (100 CFU/mL) of aerobic mesophilic bacteria and the presence of total coliforms must not be detectable in any 100 mL (<1.1 most probable number/100 mL) of sample. Five (25%) of the purified water samples were positive for NTM. The findings clearly showed that most of the purified bottled water samples had unsatisfactory microbiological quality and some harbored NTM associated with human illness. Therefore, the study as a pilot points to a need for Mexican health authorities to perform frequent monitoring of purified water producers to verify compliance with standards regarding microbial safety.
AB - The aim of this work was to begin to determine the microbiological quality of bottled water samples obtained from small purification plants located in Morelia, Michoacan, Mexico. Various microorganisms were taken into account, including nontuberculous mycobacteria (NTM) species. All 20 samples analyzed were positive for aerobic mesophilic bacteria. Eleven (55%), 6 (30%), and 2 (10%) water samples were positive for total coliforms, fecal coliforms, and Escherichia coli, respectively. In total, 18 (90%) of the water samples exceeded the maximum allowed limit stipulated by Mexico’s official guidelines, establishing that purified water must not exceed the limit of 2 log CFU/mL (100 CFU/mL) of aerobic mesophilic bacteria and the presence of total coliforms must not be detectable in any 100 mL (<1.1 most probable number/100 mL) of sample. Five (25%) of the purified water samples were positive for NTM. The findings clearly showed that most of the purified bottled water samples had unsatisfactory microbiological quality and some harbored NTM associated with human illness. Therefore, the study as a pilot points to a need for Mexican health authorities to perform frequent monitoring of purified water producers to verify compliance with standards regarding microbial safety.
UR - http://www.scopus.com/inward/record.url?scp=85100907798&partnerID=8YFLogxK
M3 - Artículo
AN - SCOPUS:85100907798
SN - 1541-9576
VL - 40
SP - 314
EP - 319
JO - Food Protection Trends
JF - Food Protection Trends
IS - 5
ER -