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L'ISMEA (Istituto di Servizi per il Mercato Agricolo Alimentare) è un ente pubblico economico istituito con l'accorpamento dell'Istituto per Studi, Ricerche e Informazioni sul Mercato Agricolo (già ISMEA) e della Cassa per la Formazione della Proprietà Contadina, con decreto legislativo 29 ottobre 1999 n. 419, concernente il 'riordinamento del sistema degli enti pubblici nazionali'.  

Приостановивший сотрудничество (Поставщик данных временно не активен и не предоставлял метаданные по меньшей мере в течение последнего календарного года)
Journal Article

Статья в журнале

Methods of analysis of proanthocyanidins in red wines  [2002]

Di Stefano, R. (Consiglio per la Ricerca e la Sperimentazione in Agricoltura (CRA) - Istituto Sperimentale per l'Enologia, Asti (Italy)); Gentilini, N. (Consiglio per la Ricerca e la Sperimentazione in Agricoltura (CRA) - Istituto Sperimentale per l'Enologia, Asti (Italy));

Доступ к полному тексту

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The methods of Ribéreau-Gayon and Stonestreet (1966) and Di Stefano et al. (1989) to determine red wine proanthocyanidins were compared. The proanthocyanidin concentrations obtained by the application of these methods are quite different, depending on the varietal origin and age of wine. Because the composition of wine affects the results obtained with the Ribéreau-Gayon and Stonestreet methods, a modification was proposed to eliminate the interferents influence. This modification provides a) the elimination of interferents by absorption of proanthocyanidins on C sub(18) RP cartridge, b) the elution by methanol of absorbed polyphenols and c) the application of Ribéreau-Gayon and Stonestreet method to the eluate. The data obtained by the two methods in question were also compared with the data of polyphenols by Folin Ciocalteu reagent, as well as by absorbance at 280 nm. The two methods of proanthocyanidins determination, applied after elimination of interferents, allow to make similar deductions about the tannic composition of wine
Журнал
Rivista di Viticoltura e di Enologia (Italy)
ISSN : 0370-7865

Библиографическая информация

Язык:
English
Тип:
Summary
В АГРИСе с:
2007
Том:
55
Выпуск:
4
Стартовая страница:
63
Конечная страница:
74
Все названия:
"Methods of analysis of proanthocyanidins in red wines"@eng
"Méthodes de détermination des tanins dans les vins rouges"@fre
Другое:
"Summaries (En, Fr, It)"
"2 tables"
"1 graph"
"13 ref."
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Библиографическая информация

Язык:
English
Тип:
Summary
В АГРИСе с:
2007
Том:
55
Выпуск:
4
Стартовая страница:
63
Конечная страница:
74
Все названия:
"Methods of analysis of proanthocyanidins in red wines"@eng
"Méthodes de détermination des tanins dans les vins rouges"@fre
Другое:
"Summaries (En, Fr, It)"
"2 tables"
"1 graph"
"13 ref."