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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.
Title: | Physical parameters in relation to physiological changes of avocado during ripening (20ºc) and cold storage (6ºc) in different conditions. |
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Author/s: |
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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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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.
Item ID: | 21813 |
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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 |