Resumen

CHAVARRI, Marleny; ROJAS, Viannely; RUMBOS, Nohants  y  NARCISE, Rosmar. Detection of microorganisms in tender ground corn commercialized at Maracay, Aragua State, Venezuela. Rev. Soc. Ven. Microbiol. [online]. 2014, vol.34, n.1, pp.33-37. ISSN 1315-2556.

With the purpose of evaluating the macrobiotic population associated with tender ground corn, we analyzed 20 samples obtained at several distribution centers in Maracay, Aragua State. Each sample was submitted to a physical-chemical analysis (pH and acidity measurements). For quantification of molds and yeasts we used the NMP method (Covenin Regulation 902.1978). The data obtained were analyzed through a variance analysis. There were no statistically significant differences in pH and acidity values, or in mold, yeasts or mesophilic bacterial counts, or in the estimation of total and fecal coliforms in the samples analyzed. pH values were between 6.1 - 6.4, and acidity values between 2.6 - 2.8. Molds and yeasts counts and estimation of total and fecal coliforms exceeded the limits allowed by the Mexican Regulation NOM-147-SSA1-1996 for cereals and their products, and the Venezuelan Regulation Covenin 1452-1993, showing a high contamination of the samples analyzed, except for the mesophilic bacterial counts. The high coliform growth in all the samples analyzed represents a risk for human health.

Palabras clave : cornmeal; molds; yeasts; mesophilic bacteria; coliforms; Food Covenin Regulations.

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