170,004 research outputs found
Analisi della prassi e della giurisprudenza a due anni dall’approvazione del Codice dei Contratti
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Organizzazione di una base di conoscenza architettonica a supporto della progettazione: un approccio integrato alla produzione dell’involucro
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La generica designazione degli eredi nelle polizze vita: profili di interferenza fra criteri di esegesi del contratto e regole successorie
No full textSimultaneous determination of polyphenolic compounds in red and white grapes grown in Sardinia by high performance liquid chromatography-electron spray ionisation-mass spectrometry
No full textA new method for the identification and the quantification of nonanthocyanin phenolic compounds from six Vitis Vinifera grape varieties native to Sardinia (three native: Vermentino, Malvasia and Cannonau and three non-native types: Chardonnay, Sauvignon and Cabernet Sauvignon; Argiolas vineyard) was developed. This rapid and selective method employs LC/ESI-MS in negative mode. Different solvents extraction and different sorbents for purification were compared to the direct analysis of the initial extracts without further sample preparation. A total of 54 phenolic compounds were identified either in the freeze-dried skins or seeds, including nonflavonoids (hydroxybenzoic and hydroxycinnamic acids and their derivatives, stilbenes) and flavonoids (flavanols, flavonols, dihydroxyflavonols). (C) 2009 Elsevier B.V. All rights reserved
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