| The presence of melatonin in grapevine (Vitis vinifera L.) berry tissues. | |
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MedLine Citation:
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PMID: 21615489 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Melatonin has been reported in a variety of food plants and, consequently, in a number of plant-derived foodstuffs. In grapevine (Vitis vinifera L.) products, it was found in berry exocarp (skin) of different cultivars and monovarietal wines. Herein, we assessed, by means of mass spectrometry, the occurrence of melatonin in all berry tissues (skin, flesh, and seed) at two different phenological stages, pre-véraison and véraison. We detected the highest melatonin content in skin, at pre-véraison, whereas, at véraison, the highest levels were reported in the seed. Furthermore, during ripening, melatonin decreased in skin, while increasing in both seed and flesh. The relative concentrations of melatonin in diverse berry tissues were somewhat different from those of total polyphenols (TP), the latter measured by the Folin-Ciocalteau assay, and more abundant in seed at pre-véraison and in exocarp at véraison. The highest antiradical activity, determined by both DPPH (2,2-diphenyl-1-pycryl hydrazyl) and ABTS [(2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid)] radical-scavenging assay, was reported at pre-veráison in seed. To the best of our knowledge, we reported, for the first time, the occurrence of melatonin in grape seeds. |
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Authors:
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Sara Vitalini; Claudio Gardana; Alessandro Zanzotto; Paolo Simonetti; Franco Faoro; Gelsomina Fico; Marcello Iriti |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-18 |
Journal Detail:
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Title: Journal of pineal research Volume: - ISSN: 1600-079X ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-5-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8504412 Medline TA: J Pineal Res Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2011 John Wiley & Sons A/S. |
Affiliation:
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Dipartimento di Produzione Vegetale, Università degli Studi di Milano, Milano, Italy Orto Botanico 'G. E. Ghirardi', Dipartimento di Biologia, Università degli Studi di Milano, Toscolano Maderno, Brescia, Italy DiSTAM - Sezione Nutrizione, Università degli Studi di Milano, Milano, Italy CRA, Centro di Ricerca per la Viticoltura, Conegliano Veneto, Treviso, Italy CNR, Dipartimento Agroalimentare, Istituto di Virologia Vegetale, Sezione di Milano, Milano, Italy Dipartimento di Biologia, Università degli Studi di Milano, Milano, Italy. |
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