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Reference: Use of density sorting for the selection of aromatic grape berries with different volatile profile
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Abstract-

The aim of the study was to investigate the application of berry density sorting as a tool for the selection of grapes with different volatile and precursor profiles. The study was carried out on Moscato giallo, Malvasia di Schierano, Malvasia nera lunga, and Brachetto aromatic grape varieties. Free and glycosidically-bound terpene compounds including linalool, geraniol, nerol, citronellol, and terpineol, as well as lipoxygenases activity-derived compounds, were evaluated using head space-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) in density sorted berries (1075–1119 kg m−3). Total free terpenes changed with the berry density, while no significant changes were found in total glycosylated compounds, except for Malvasia nera lunga grapes where nerol, linalool, and geraniol contributed strongly to the increase of total contents with increasing berry density. Given that these variations were strongly variety-dependent, the possible use of density sorting equipment in winery for this aim may be less effective.

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Link to paper-

https://www.sciencedirect.com/science/article/pii/S0308814618318053

https://doi.org/10.1016/j.foodchem.2018.10.040


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Publication Details

Published: 2019
Publication: Food Chemistry
Issue: 2019 276 p562-571
Author: Pollon M 2019
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Brain food

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