Segregation of soft olives using Durofel and on-line rebound

Barreiro Elorza, Pilar and Ruiz-Altisent, Margarita and Moya Gonzalez, Adolfo and Agulheiro Santos, Ana Cristina and García Ramos, Francisco Javier (2004). Segregation of soft olives using Durofel and on-line rebound. "Journal of Agricultural Research", v. 2 (n. 4); pp. 493-499. ISSN 1695-971-X.

Description

Title: Segregation of soft olives using Durofel and on-line rebound
Author/s:
  • Barreiro Elorza, Pilar
  • Ruiz-Altisent, Margarita
  • Moya Gonzalez, Adolfo
  • Agulheiro Santos, Ana Cristina
  • García Ramos, Francisco Javier
Item Type: Article
Título de Revista/Publicación: Journal of Agricultural Research
Date: 2004
ISSN: 1695-971-X
Volume: 2
Subjects:
Freetext Keywords: hardness, colour, logistic regression, classification.
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

Traditional table olive fermentation processing produces variable proportions of defective olives that must be eliminated before final packaging. Defects include fish eye («alambradas»), compact («compactas») and over-ripe olives. For two testing periods during the 2001 season, different batches were graded by size, colour parameters, hardness, density and rebound distance (total number tested was 760 olives). The latter was determined using a specially designed prototype made by an on-line rotating drum covered with a commercial rubber material to avoid damage (13.3 cm total diameter and 6.81 rad s-1 rotation speed). Results showed that 96% of measured variance could be explained by the four Principal Components Analysis of extracted factors. Moreover, hardness measured as Durofel- 25 units is closely related to rebound distance. Softness thresholds have been addressed for both hardness parameters with devoted logistic models, permitting correct segregation (with 95% of well-classified individuals) of all soft olives (over-ripe and fish eye) using the rebound drum.

More information

Item ID: 5006
DC Identifier: http://oa.upm.es/5006/
OAI Identifier: oai:oa.upm.es:5006
Official URL: http://www.inia.es/gcontrec/pub/493-499-(2205)-Segregation_1161759064968.pdf
Deposited by: Memoria Investigacion
Deposited on: 17 Nov 2010 12:03
Last Modified: 20 Apr 2016 13:59
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