Journal
FOOD RESEARCH INTERNATIONAL
Volume 50, Issue 1, Pages 409-419Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foodres.2012.10.033
Keywords
Consumer overall liking; Physicochemical parameters; Tomato; Sensory evaluation; Volatiles
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Funding
- Italian MIUR project GenoPOM
- EUSOL project [PL 016214-2]
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This study aimed at providing further insights into the positive and negative drivers of tomato liking. For this purpose, 13 tomato cultivars representing different typologies were characterized for physicochemical parameters and aroma volatiles, and were assessed by a trained panel for sensory descriptors, and by Italian consumers for liking. The relationships among the different parameters and their effects on consumer liking were studied by Partial Least Squares (PLS) analysis. Among physicochemical traits and sensory descriptors, seeds, reducing sugars, firmness, thick epicarp, soluble solids, sour taste, total acidity, citrate, herbaceous aroma and brightness were found to be drivers of liking, whereas pulp thickness, humidity, fruit weight, diacetyl-like odor and mealiness showed an opposite influence. For the aroma volatiles, 2-isobutylthiazole played a key role on liking and its positive contribution seemed to be supported by (Z)-3-hexen-1-ol, but suppressed by 6-methyl-5-hepten-2-ol, especially when tomatoes had a poor volatile fraction. These results represent a contribution to the knowledge that could lead to more effective breeding strategies aimed at improving tomato sensory quality. (c) 2012 Elsevier Ltd. All rights reserved.
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