Chenin blanc wine volatiles and the intensity of a guava-like flavour

Date
1982
Journal Title
Journal ISSN
Volume Title
Publisher
South African Society for Enology and Viticulture
Abstract
A guava-like flavour occurring in some South African Chenin blanc and Colombard dry white wines was investigated. Headspace volatiles of some of these wines, as well as those of fresh guava fruits, were analysed by means of a gas chromatograph equipped with a "sniffer-detector". In contrast to the headspace concentrate of guava fruits, no single fraction with a typical guava flavour was found in the wines analysed. The pattern recognition system "ARTHUR" was therefore used to investigate relationships between the more important wine volatiles and the intensity of a guava-like flavour of a set of wines originating from the same Chenin blanc must. Sensory scores for this flavour were used in both category and continuous property analysis in each case. Category and correlation to property plots were used to elucidate the results. Several promising variables and ratios between variables were singled out for further investigation, notably ethyl butyrate and the ratios ethyl butyrate/ethyl decanoate and ethyl butyrate/ethyl octanoate.
Description
CITATION: Van Rooyen, P. C., et al. 1982. Chenin blanc wine volatiles and the intensity of a guava-like flavour. South African Journal of Enology & Viticulture, 3(1):1-7, doi:10.21548/3-1-2387.
The original publication is available at http://www.journals.ac.za/index.php/sajev
Keywords
Wine and wine making -- South Africa, Chenin blanc wine -- Odour and flavour, Guava-like flavoured wines -- Analysis
Citation
Van Rooyen, P. C., et al. 1982. Chenin blanc wine volatiles and the intensity of a guava-like flavour. South African Journal of Enology & Viticulture, 3(1):1-7, doi:10.21548/3-1-2387