Presence of indicator bacteria, Shiga toxin-producing Escherichia coli, and nontuberculous mycobacteria in oregano
Alan Ricardo VELAZQUEZ-MEDELLIN,
Margarita HERNANDEZ-MIXTECO,
Oscar CASTRO-MORALES
et al.
Abstract:Limited data are available regarding microbial contamination in oregano. This study aimed to evaluate the microbiological quality and presence of diarrheagenic Escherichia coli pathotypes and nontuberculous mycobacteria (NTM) in 85 oregano samples purchased from different markets in Mexico City. All samples analyzed were positive for aerobic-mesophilic bacteria, with limits ranging from 1.14 to 6.5 log CFU/g. A total of 67, 41, and 9 samples were positive for total coliforms, fecal coliforms, and E. coli, resp… Show more
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