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

Ruiz-Altisent, Margarita ORCID: https://orcid.org/0000-0002-6350-0315, 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:
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: https://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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