Segregation of soft olives using Durofel and on-line rebound
Keywords:
OLIVES, FIRMNESS, GRADING, SORTING EQUIPMENT, CONVEYERS
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.Downloads
Download data is not yet available.
Published
2004-12-01
How to Cite
Barreiro, P., Ruiz Altisent, M., Moya, A., Agulheiro, A., & Garcia Ramos, F. (2004). Segregation of soft olives using Durofel and on-line rebound. Spanish Journal of Agricultural Research, 2(4), 493-499. https://doi.org/10.5424/sjar/2004024-105
Issue
Section
Invisible
© CSIC. Manuscripts published in both the print and online versions of this journal are the property of the Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. You may read the basic information and the legal text of the licence. The indication of the CC BY 4.0 licence must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the final version of the work produced by the publisher, is not allowed.
