Research Article

Microbiological Quality of Ready-to-Eat Vegetables Collected in Mexico City: Occurrence of Aerobic-Mesophilic Bacteria, Fecal Coliforms, and Potentially Pathogenic Nontuberculous Mycobacteria

Table 2

Characteristics of positive samples for NTM and species identified.

FoodsOriginNumber of positive samples, typeIngredientsNumber and species of NTM identified

RTE-saladsSVS3, mixedLettuce, carrot, cucumber, Mexican turnip,
tomatoes, onion
2, M. fortuitum
1, M. chelonae
SVS1, mangoLettuce, mango,
Mexican turnip, strawberry
1, M. fortuitum
SVS3, nopalCactus, tomatoes
onion, coriander
1, M. mucogenicum
1, M. chelonae
1, M. sp

RTE-sproutsSPM3, alfalfaAlfalfa sprouts2, M. abscessus
1, M. gordonae
SPM1, alfalfa and cloverAlfalfa sprouts
Clover sprouts
1, M. porcinum
SPM1, alfalfa and onionAlfalfa sprouts
onion sprouts
1, M. porcinum
SVS4, alfalfaAlfalfa sprouts1, M. avium  complex 
3, M. porcinum
SVS1, alfalfa and soybeanAlfalfa sprouts
soybean sprouts
1, M. mucogenicum
SVS1, soybeanSoybean sprouts1, M. mucogenicum
SVS1, broccoliBroccoli sprouts1, M. gordonae

SVS: street-vendor stalls; SPM: supermarket.