Physical parameters in relation to physiological changes of avocado during ripening (20ºc) and cold storage (6ºc) in different conditions.

Ruiz-Altisent, Margarita and Correa, Paulo César and Plaza Pérez, José Luis de la (1992). Physical parameters in relation to physiological changes of avocado during ripening (20ºc) and cold storage (6ºc) in different conditions.. In: "Ag Eng 1992 International Conference on Agricultural Engineering", 1-4,june,1992, Uppsala-Sweden.

Description

Title: Physical parameters in relation to physiological changes of avocado during ripening (20ºc) and cold storage (6ºc) in different conditions.
Author/s:
  • Ruiz-Altisent, Margarita
  • Correa, Paulo César
  • Plaza Pérez, José Luis de la
Item Type: Presentation at Congress or Conference (Article)
Event Title: Ag Eng 1992 International Conference on Agricultural Engineering
Event Dates: 1-4,june,1992
Event Location: Uppsala-Sweden
Title of Book: International Conference on Agricultural Engineering
Date: 1992
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Ingeniería Rural [hasta 2014]
UPM's Research Group: LPF-TAGRALIA
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The application of the response of fruits to low energy for mechanical impacts is described, for evaluation of post-harvest ripening of avocadoes of the variety "Hass". An impactor of 50g of weight, provided with an accelerometer, and free-falling from a height of 4 cm, is used; it is interfaced to a computer and uses a special software for retrieving and analyzing the deceleration data. Impact response parameters of individual fruits were compared to firmness of the pulp, measured by the most used method of double-plate puncture, as well as to other physical and physiological parameters: color, skin puncture ethylene production rate and others. Two groups of fruits were carefully selected, stored at 6º C (60 days) and ripened at 20ºC (11 days), and tested during the storage period. It is shown that, as in other types of fruits, impact response can be a good predictor of firmness in avocadoes, obtaining the same accuracy as with destructive firmness measurements. Mathematical and multiple regression models are calculated and compared to measured data, with which a prediction of storage period can be made for these fruits.

More information

Item ID: 21813
DC Identifier: http://oa.upm.es/21813/
OAI Identifier: oai:oa.upm.es:21813
Deposited by: Servicio Biblioteca Universitaria
Deposited on: 29 Nov 2013 12:34
Last Modified: 04 Mar 2015 15:59
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