Supervision of ovoproducts spoilage with red led light

Correa Hernando, Eva Cristina and Diaz Barcos, Virginia and Barreiro Elorza, Pilar and Gonzalez Chamorro, M. Carmen and Fuentes-Pila Estrada, Joaquin (2008). Supervision of ovoproducts spoilage with red led light. In: "International conference on agricultural engineering. AgEng2008", 23/06/2008 - 25/06/2008, Creta, Grecia.

Description

Title: Supervision of ovoproducts spoilage with red led light
Author/s:
  • Correa Hernando, Eva Cristina
  • Diaz Barcos, Virginia
  • Barreiro Elorza, Pilar
  • Gonzalez Chamorro, M. Carmen
  • Fuentes-Pila Estrada, Joaquin
Item Type: Presentation at Congress or Conference (Article)
Event Title: International conference on agricultural engineering. AgEng2008
Event Dates: 23/06/2008 - 25/06/2008
Event Location: Creta, Grecia
Title of Book: Agricultural and biosystems engineering for a sustainable world. Book of abstracts
Date: 2008
Subjects:
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Ingeniería Rural [hasta 2014]
Creative Commons Licenses: Recognition - Non commercial - Share

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Abstract

Heat-treatment of ovoproducts is often required to ensure microbial safety. However, it has been shown that in most microbial species slow heating, or heat shocks may induce a higher heat resistance, that means that it is not possible to remove the microbial flora completely. These microorganisms produce on ovoproducts spoilage especially when the cold chain is broken along the transportation and/or storage. As a result, the life span for the product is shortened. The microbial activity inside the product causes changes in several physical properties, which can be supervised using optical methods. The aim of this work is to monitor the sigmoid behaviour underlying the ovoproduct evolution and spoilage by means of red LED light. For two commercial types of liquid and pasteurized egg white, storage at 9ºC, an average correlation of r=0.94 has been found between microorganism growth and images mean grey level of LED light passing though the sample. The results show that it is possible to develop very simple predictive models taking into account only one optical parameter corresponding to a single LED.

More information

Item ID: 9964
DC Identifier: http://oa.upm.es/9964/
OAI Identifier: oai:oa.upm.es:9964
Deposited by: Titular Universidad Eva Cristina Correa Hernando
Deposited on: 04 Jan 2012 10:51
Last Modified: 20 Apr 2016 18:15
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