Resveratrol and piceid isomers concentrations in grapevine shoots, leaves, and tendrils
The objective of this study was to evaluate the levels of cis- and trans-isomers of resveratrol and piceid contained in the shoots, leaves and tendrils of six grapevine varieties and three locations processed under two different drying conditions. The highest trans-resveratrol content was found in t...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2016-03-01
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| Series: | Horticultural Science |
| Subjects: | |
| Online Access: | https://hortsci.agriculturejournals.cz/artkey/hor-201601-0004_resveratrol-and-piceid-isomers-concentrations-in-grapevine-shoots-leaves-and-tendrils.php |
| Summary: | The objective of this study was to evaluate the levels of cis- and trans-isomers of resveratrol and piceid contained in the shoots, leaves and tendrils of six grapevine varieties and three locations processed under two different drying conditions. The highest trans-resveratrol content was found in the shoots; trans-piceid was contained in lesser amounts (7%) and cis-forms only in very small amounts (~1%). In leaves, both forms of piceid were dominant, while in tendrils trans- and cis-forms of piceid were dominant in samples dried in the laboratory oven at 40°C. Pinot Noir differed from other varieties with a high trans-resveratrol amount. Growing location affected trans-resveratrol levels. Our results suggest that the trimmed clippings might be used as a valuable and inexpensive source of stilbenes. Clippings preserved by drying might be further processed to nutraceuticals or as an additive to the feed. |
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| ISSN: | 0862-867X 1805-9333 |