A total of 32 compounds were quantified, which were grouped in 18 terpenes, 10 alcohols, and 4 aldehydes. In contrast to total free compounds, an increasing trend of total bound terpenes was observed during dehydration for air- and ozone-treated grapes and the maximum contents were found at P30.
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The sentences
A total of 33 volatile compounds were identified and quantified (18 terpenes, 9 alcohols, and 6 aldehydes). Total free terpenes showed a decreasing trend during dehydration for both treatments (air and ozone), although the minimum content was found at P15.