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Investigating the relationship between grape cell wall polysaccharide composition and the extractability of phenolic compounds into Shiraz wines. Part I: Vintage and ripeness effects
RISE - Research Institutes of Sweden, Bioscience and Materials, Agrifood and Bioscience.
Stellenbosch University, South Africa.
University of Copenhagen, Denmark.
Stellenbosch University, South Africa.
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2019 (English)In: Food Chemistry, ISSN 0308-8146, E-ISSN 1873-7072, Vol. 278, p. 36-46Article in journal (Refereed) Published
Abstract [en]

Phenolic compounds play an important role in colour stability and sensory properties of red wine. This study evaluated berry skin cell wall composition and how this influences grape and wine phenolics at different ripeness levels (21°Brix, 23°Brix, and 25°Brix) over two consecutive vintages. The vintage effect was highly significant, especially in the pectin fraction of the grape cell walls and affected the concentrations of certain phenolics extracted. The climatic variance between the seasons might have influenced the differences observed in the grape cell wall compositions. Firstly, a higher grape and wine phenolic content, especially in polymeric phenols, was found in 2015 wines. Additionally, grape berry cell walls, especially at the earliest stages of ripening, were found to be more intact in 2015 than in 2016. Thus, a possible relationship was found between the degree of berry intactness, especially for pectin-rich components, and the corresponding phenolic extractability during the winemaking.

Place, publisher, year, edition, pages
2019. Vol. 278, p. 36-46
Keywords [en]
Cell walls, Grapes, Phenolics, Ripeness, Vintage effect, Wines, Cytology, Fruits, Phenols, Wine, Cells
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-36390DOI: 10.1016/j.foodchem.2018.10.134Scopus ID: 2-s2.0-85056247576OAI: oai:DiVA.org:ri-36390DiVA, id: diva2:1265202
Note

; Funding details: National Research Foundation of Korea, NRF;

Available from: 2018-11-22 Created: 2018-11-22 Last updated: 2018-11-22Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • vancouver
  • Other style
More styles
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  • en-GB
  • en-US
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  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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