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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Authentication of cocoa (Theobroma cacao) bean hybrids by NIR-hyperspectral imaging and chemometrics

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Cruz-Tirado, J. P. [1] ; Fernandez Pierna, Juan Antonio [2] ; Rogez, Herve [3] ; Fernandes Barbin, Douglas [1] ; Baeten, Vincent [2]
Total Authors: 5
[1] Univ Estadual Campinas, Sch Food Engn, Dept Food Engn, Campinas, SP - Brazil
[2] Walloon Agr Res Ctr CRA W, Knowledge & Valorizat Agr Prod Dept, Qual & Authenticat Prod Unit, Gembloux - Belgium
[3] UFPA Fed Univ, CVACBA Ctr Valorizat Amazonian Bioact Cpds, Ave Perimetral 01, BR-66075150 Belem, Para - Brazil
Total Affiliations: 3
Document type: Journal article
Source: FOOD CONTROL; v. 118, DEC 2020.
Web of Science Citations: 0

The hybridization of cocoa generates new varieties with the aim of opening new flavors, textures, and disease resistance. The objective of this study was to develop and validate classification models based on NIR hyperspectral imaging and chemometrics for the discrimination of five valuable cocoa bean hybrids. The chemometrics tools, PLS-DA and SVM, showed comparable results for two-class (hybrids) models, but SVM (3.8-23.1% prediction error) was superior to PLS-DA (4.4-34.4% prediction error) when all five classes (hybrids) were included in a model. PLS-DA maps showed a simple and informative way to discriminate hybrids, allowing a correct classification in 50-100% of cases. Finally, it can be concluded that the models created in this work could be a good and reliably alternative to the actual visual method for the discrimination of cocoa bean hybrids. (AU)

FAPESP's process: 19/04833-3 - A new approach based on hyperspectral imaging for farming system authentication of seeds
Grantee:Luis Jam Pier Cruz Tirado
Support type: Scholarships abroad - Research Internship - Master's degree
FAPESP's process: 18/02500-4 - Food analyses using NIR spectral imaging
Grantee:Luis Jam Pier Cruz Tirado
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/24351-2 - Applications of image analyses and NIR spectroscopy for quality assessment and authentication of food products
Grantee:Douglas Fernandes Barbin
Support type: Research Grants - Young Investigators Grants