Electronic nose evaluation of cabernet sauvignon fruit maturity

Ahmad I. Athamneh, Bruce W. Zoecklein, Kumar Mallikarjunan

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The ability of an electronic nose to classify cabernet sauvignon (Vitis vinifera L.) fruit based on maturity levels was investigated over two seasons. Maturity of samples collected 18, 19, and 20 weeks post-bloom was evaluated by measuring berry weight, pH, Brix, titratable acidity, total phenols, color intensity, hue, total anthocyanins, and total and phenol-free glycosides. Results were compared, using discriminant and canonical discriminant analysis, with analysis of headspace volatiles via a hand-held electronic nose. The electronic nose was able to determine differences among the three sample groups in both seasons. Additionally, in one season electronic nose measurements were compared to chemical analyses of samples collected from east and west sides of north - south oriented vineyard rows. Results demonstrated the ability of the electronic nose to distinguish fruit from vine canopy sides. Field measurements demonstrated the potential for the electronic nose as a rapid, non-destructive tool for evaluating grape maturity.

Original languageEnglish (US)
Pages (from-to)69-80
Number of pages12
JournalJournal of Wine Research
Volume19
Issue number1
DOIs
StatePublished - Mar 1 2008

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Electronic Nose
electronic nose
fruit maturity
Fruit
Vitis
fruits
Anthocyanins
Phenols
Discriminant Analysis
brix
Glycosides
Phenol
vineyards
sampling
Vitis vinifera
titratable acidity
headspace analysis
discriminant analysis
phenols
vines

Cite this

Electronic nose evaluation of cabernet sauvignon fruit maturity. / Athamneh, Ahmad I.; Zoecklein, Bruce W.; Mallikarjunan, Kumar.

In: Journal of Wine Research, Vol. 19, No. 1, 01.03.2008, p. 69-80.

Research output: Contribution to journalArticle

Athamneh, Ahmad I. ; Zoecklein, Bruce W. ; Mallikarjunan, Kumar. / Electronic nose evaluation of cabernet sauvignon fruit maturity. In: Journal of Wine Research. 2008 ; Vol. 19, No. 1. pp. 69-80.
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