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EnglishTrans-resveratrol (3, 5, 4' – trihydroxy-trans-stilbene) is a stilbene naturally present in a number of plant families. Berry skins of grape (Vitis vinifera L.), Alicante, Black Malvasia, Nerello and Prunesta cultivars were analyzed at weekly intervals for trans-resveratrol production at five ripening stages during the last five weeks of maturation, from August 26th to September 23th. Analysis was carried out using the high performance liquid chromatography-diode array detector (HPLC-DAD) technique after fractioning of trans-resveratrol through a 500 mg C18 column (Solid Phase Isolation – SPI technique). A continuous decrease in trans-resveratrol content in all cultivars was observed during ripening. Alicante had the highest trans-resveratrol content, showing a decrease of 46% from the first to last sampling, while Black Malvasia produced the lowest amount of trans-resveratrol, 4 to 5 times less than Alicante at each sampling date.
| Titolo: | High performance liquid chromatography-diode array detector (HPLC-DAD) detection of trans-resveratrol: Evolution during ripening in grape berry skins |
| Autori: | GIUFFRE', Angelo Maria (Corresponding) |
| Data di pubblicazione: | 2013 |
| Rivista: | |
| Handle: | http://hdl.handle.net/20.500.12318/1597 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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