| dc.contributor.author | Shendery, Clara | |
| dc.contributor.author | Alchanatis, Victor | |
| dc.contributor.author | Ostrovsky, Visichlave | |
| dc.contributor.author | Weksler, Asya | |
| dc.contributor.author | Lurie, Susan | |
| dc.contributor.author | Schmilovitch, Ze’ev | |
| dc.contributor.editor | Nunes, Carla | |
| dc.date.accessioned | 2013-10-07T16:35:46Z | |
| dc.date.available | 2013-10-07T16:35:46Z | |
| dc.date.issued | 2010 | |
| dc.description | Proceedings of the International Conference “Environmentally friendly and safe technologies for quality of fruit and vegetables”, held in Universidade do Algarve, Faro, Portugal, on January 14-16, 2009. This Conference was a join activity with COST Action 924. | por |
| dc.description.abstract | Moldy core of apples is undetectable until the fruit is cut or bitten into, it can therefore pose serious problems to both producer and consumer. Removal of diseased fruits prior to storage would be most desirable. The objective of this study was to evaluate the ability of VIS-NIR mini-spectrometers to detect moldy core in apples, on line. An apparatus which is qualified for online NIRS (near infrared spectrometry) measurements was developed based on off-the-shelf mini-spectrometers. ‘Top Red’ apples, were collected from several orchards before and during the commercial harvest, and were stored at 0°C pending the tests. The data were analyzed by chemometric procedures, specifically, by partial least squares regression (PLSR), and were classified by means of canonical discriminant analysis. The canonical variables were represented by the latent variables of the PLS models, which were based on the spectra. The accuracy of the classification results was high when the moldy fraction threshold was set at 5%; in such a case the mold covers only the seed carpals of the fruit, where it might remain without really damaging the fruit. Improvements should aim to reduce errors in classifying low-level damage, and also in misclassifying some healthy fruits. The rate of testing (1 s per fruit) is acceptable for quality control purposes, but should be accelerated for future packing-line implementation. | por |
| dc.identifier.uri | http://hdl.handle.net/10400.1/3037 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Universidade do Algarve | por |
| dc.subject | Alternaria alternata | por |
| dc.subject | Fruit Quality | por |
| dc.subject | Near Infrared Spectroscopy | por |
| dc.title | Nirs detection of moldy core in apples | por |
| dc.type | book part | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Faro | por |
| oaire.citation.endPage | 44 | por |
| oaire.citation.startPage | 41 | por |
| oaire.citation.title | Environmentally friendly and safe technologies for quality of fruit and vegetables | por |
| rcaap.rights | openAccess | por |
| rcaap.type | bookPart | por |
