Journal of Food, Agriculture and Environment

Vol 10, Issue 2,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Influence of soil geochemistry on the chemical and aroma profiles of Pinot noir wines


Stephen P. Imre 1, Paul A. Kilmartin 2*, Tanya Rutan 2, Jeffrey L. Mauk 1, Laura Nicolau 2

Recieved Date: 2012-01-23, Accepted Date: 2012-04-26


The aroma and flavour expression of wines has long been considered to be intimately linked to the climate, soil and further aspects of the physical environment, as reflected in the concept of terroir. The distinctive and varied aroma profiles of Pinot noir wines and their link with soil geochemistry is of particular interest in defining geographical wine styles. Three neighbouring Pinot noir sites in Bannockburn, Central Otago, were selected with similar viticultural management techniques, and with the same 10/5 Pinot noir clone, for microvinification trials. Differences in climate, slope, aspect and elevation were minimal across these sites, but detailed studies showed that the soils at these sites had substantial textural and geochemical differences. Vine trunk circumference measurements, used as an indicator of vigour, were also different at each site. Replicated grape samples were obtained across the vineyard sites, and a uniform microvinification protocol was employed to minimize variations arising from the winemaking procedure. Differences were seen in the content of wine tannins, polyphenols, colour and of aroma compounds by GC-MS. The depth of colour in wines from one of the sites was lower than for the other two sites, and the wines also exhibited lower concentrations of important aroma compounds belonging to the floral terpenes and fruit ester classes. Particular aroma and polyphenol profiles were also seen in the remaining two wines, which can be associated with differences in the soil geochemistry. The results suggest that the soil component of terroir influences vine growth and berry properties that are in turn reflected in wine flavour and aroma characteristics. 


Soil texture, geochemistry, aroma analysis, polyphenols, microvinification, gas chromatography

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 2
Category: Food and Health
Pages: 280-288

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :