Grape Maturity and Wine Quality | Zendy

Cédric Plessis | Zendy; P. C. Van Rooyen | Zendy

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Grape Maturity and Wine Quality

Author(s) -

Cédric Plessis,

P. C. Van Rooyen

Publication year - 2017

Publication title -

south african journal of enology and viticulture

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.419

H-Index - 25

eISSN - 2224-7904

pISSN - 0253-939X

DOI - 10.21548/3-2-2380

Subject(s) - wine , maturity (psychological) , cultivar , quality (philosophy) , mathematics , grape wine , horticulture , white wine , wine grape , food science , statistics , biology , physics , psychology , developmental psychology , quantum mechanics

Several indices calculated from grape juice analyses were submitted to statistical analyses in order to determine correlations of these indices with quality of wine made from grapes at different stages of maturity. Curvilinear relationships were obtained enabling an optimum point to be calculated relating grape maturity to maximum wine quality. The application of skin contact in the case of white wine cultivars resulted in earlier maxima for wine quality, thus compensating to an extent for earlier harvesting. The cultivars Chenin blanc, Colombar, Pinotage and Cabernet Sauvignon were examined as outlined above over several years.

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