Authors
Alain Clément, Martine Dorais, Marcia Vernon
Publication date
2008/3/12
Journal
Journal of agricultural and food chemistry
Volume
56
Issue
5
Pages
1538-1544
Publisher
American Chemical Society
Description
Standard methods for determining quality and maturity are time- and labor-consuming and generally measure individual criteria at a specific time, without considering relationships among quality parameters. To propose a rapid and nondestructive analysis method describing multidimensional quality variables, an experiment was undertaken with mature green to overripe tomato fruits found on the North American retail markets. Factor analysis was used to analyze results. Four factors were considered, representing 81% of total variance. The first one, tomato maturity stage (TMS), is related to color, lycopene content, firmness, titratable acidity (TA), pH, and soluble solids (SS). Nondestructive rapid assessment by vis−NIR spectroscopy can predict TMS (r2 = 0.93). Factors 2 and 3 are both related to taste and should be considered simultaneously. Factor 2, called the gustatory index, is linked to electrical conductivity (EC …
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Scholar articles
A Clément, M Dorais, M Vernon - Journal of agricultural and food chemistry, 2008