Aromatski i fenolni profil grožđa i vina sorte "Muškat Hamburg" uvjetovan djelomičnom defolijacijom

master's thesis

• Title (english): Aromatic and phenol profile of "Muscat of Hamburg" grapes and wine modified by leaf removal
• Author: Janko Haramina
• Mentor: Marko Karoglan (mentor)
• Committee member: Marko Karoglan (predsjednik povjerenstva)
• Committee member: Ana-Marija Jagatić Korenika (član povjerenstva)
• Committee member: Zvjezdana Marković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Viticulture and Enology); Zagreb
• Defense date and country: 2023-09-08, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Djelomična defolijacija u zoni grozdova jedan je od najčešćih ampelotehničkih zahvata korištenih u proizvodnji grožđa u cilju poboljšanja mikroklimata loze te povećanja kvalitete grožđa. Zbog povećanja temperature zraka posljednjih godina nužno je preispitati različite termine provođenja djelomične defolijacije te njihov utjecaj na sintezu sekundarnih metabolita aromatičnih sorata. Tretman djelomične defolijacije obavljen je u fenofazi zametanja bobica. Istraživanje je pokazalo kako je djelomična defolijacija utjecala na primarni kemijski sastav grožđa te povećanje sadržaja polifenolnih spojeva u grožđu, ali nije utjecala na prinos te na polifenolni i hlapljivi sastav vina sorte 'Muškat Hamburg'.

Abstract (english)

Leaf removal in the cluster zone is one of the most common ampelotechnical operations used in grape production with the aim of improving the microclimate of the vine and increasing the quality of the grapes. Due to the increase in air temperature in recent years, it is necessary to re-examine the different timings of leaf removal and their impact on the synthesis of secondary metabolites of aromatic varieties. Leaf removal was performed at berry set. Leaf removal affected primary composition (total soluble solids and acidity) and polyphenolic composition of the grapes, but did not affect the yield, polyphenolic and volatile composition of the 'Muscat of Hamburg' wine.

• Keywords: 'Muškat Hamburg'; djelomična defolijacija; polifenolni spojevi; hlapljivi spojevi
• Keywords (english): Muscat Hamburg; leaf removal; polyphenols; volatile compounds
• Language: croatian
• URN:NBN: urn:nbn:hr:204:630872
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-09-19 08:53:57