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. 2018 Dec 11;9:1826. doi: 10.3389/fpls.2018.01826

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Copyright © 2018 Río Segade, Vilanova, Pollon, Giacosa, Torchio and Rolle.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Total volatile composition (μg/L) in free and bound fractions of fresh and withered Moscato bianco grapes after treatment with ozone at different exposure doses and times. The figure shows the total content of volatiles (A,B), terpenes (C,D), and other non-terpene compounds (E,F) in the free (A,C,E) and glycosylated (B,D,F) fraction. Error bars correspond to standard deviations (n = 3). Values with different lower and capital Latin letters indicate significant differences among treatments for fresh and withered grape samples, respectively, according to the HSD Tukey’s test (p < 0.01). Asterisks (^∗∗) denote a significant difference at p < 0.01 between fresh and withered samples for each treatment. DN, normal dose (30 μL/L); DH, high dose (60 μL/L); 24 and 48, 24 and 48 h of exposure, respectively.