Consideración Básica sobre la Seguridad Microbiológica de los Jugos de Naranja Expendidos en los Alrededores de la Universidad Politécnica Salesiana-sede Quito, Campus el Girón

Translated title of the contribution: Basic Consideration on the Microbiological Safety of Orange Juices Sold in the Surroundings of the Salesian Polytechnic University-Quito Headquarters, El Girón Campus

Roberto Nicolas Calderon Pulgar, Juan Diego Jacome Gomez, Danny Ariel Rojas Aimacaña, Lenin Javier Ramirez Cando

Research output: Contribution to journalArticle

Abstract

In the present investigation an isolation in Mac Conkey Agar medium and quantitative analysis of Gram negative bacilli found in samples of natural orange juice produced and sold in the surroundings of the Salesian Polytechnic University - Quito, Campus "El Girón", the project was carried out at the Center for Research and Valuation for Biodiversity, for the investigation five samples were taken from different parts of the sector, working at six dilutions (10?1 to 10?6 ml) in physiological water. The samples were cultured at a temperature of 35 to 37°C for three days, the first 8 hours were quantified every 2 hours according to the usual time of consumption and as recommended in the INEN standard, the Colony Forming Units were quantified up to 72 hours. From the results obtained, it was found that 40% of the orange juice sold in the vicinity of the Universidad Politécnica Salesiana-Sede Quito, Campus "El Girón" is not suitable for human consumption because it exceeds the maximum permissible limits of total coliforms established in the Ecuadorian Technical Standard INEN 2337:2008.
Translated title of the contributionBasic Consideration on the Microbiological Safety of Orange Juices Sold in the Surroundings of the Salesian Polytechnic University-Quito Headquarters, El Girón Campus
Original languageSpanish (Ecuador)
Pages (from-to)71-84
Number of pages14
JournalLa Granja
Volume25
Issue number25
StatePublished - 1 Jun 2017

Keywords

  • Colony forming units
  • Gram negative bacilli
  • Mac conkey agar
  • Orange juice

CACES Knowledge Areas

  • 215A Biochemistry

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