Original scientific paper

Effect of partial defoliation and solarization on polyphenol concentration in wines produced from Pinot Noir and Cabernet Sauvignon cultivars(Vitis vinifera L.)

Mirela Osrečak ; Agronomski fakultet Sveučilišta u Zagrebu
Marko Karoglan ; Agronomski fakultet Sveučilišta u Zagrebu
Bernard Kozina ; Agronomski fakultet Sveučilišta u Zagrebu

Abstract

The aim of this research was to investigate the effect of partial defoliation (D), as usual practice in modern grapevine production, solarization (S) which impact is still poorly investigated, and combination of these two treatments (D+S) on total polyphenols and total anthocyanins content in wines of red cultivars Pinot noir and Cabernet sauvignon (Vitis vinifera L.) wines. Treatments had no influence on sugar content in grapes, but affected lower titratable acidity of both cultivars. Treatments also increased total polyphenols and total anthocyanins concentrations in all experimental wines, except in Cabernet sauvignon solarization wines, where these increase was not significant.

Keywords

partial defoliation; solarization; polyphenols; anthocyanins

Hrčak ID:

162148

URI

https://hrcak.srce.hr/162148

Publication date:

21.4.2016.

Article data in other languages: croatian

Visits: 944 *