Colour Changes in Blanc de Noir Wines during Ageing at Different Temperatures and its Colour Preference Limits

  • L.P. Ellis Viticultural and Oenological Research Institute, Stellenbosch
  • C. Kok Viticultural and Oenological Research Institute, Stellenbosch
DOI: https://doi.org/10.21548/8-1-2324

Abstract

Visual as well as spectrophotometrically measured colour changes were studied in six blanc de noir wines during ageing at 0, 10, 20°C and 30°C. Visual colour descriptions were compared with spectrophotometric measurements of absorbance at 420 nm and 520 nm, in order to obtain colour preference limits for this type of wine. A limit where the spectrophotometrically measured absorbance values at 420 nm and 520 nm do not exceed 0,200 and 0,160 respectively, was found best suited for this purpose. The results showed that the colour of blanc de noir wine is susceptible to change during ageing. This deterioration of colour quality during ageing occurred especially in wines which initially had a more intense colour. High temperatures during ageing have a detrimental effect on the retention of colour quality.

Downloads

Download data is not yet available.
Published
2017-05-09
Issue
Vol. 8 No. 1 (1987)
Section
Articles

Copyright (c) 2017 South African Society for Enology and Viticulture

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A copyright form will be e-mailed to the corresponding author when the manuscript has been accepted for publication.

 

In principle, the Author agrees to the following when he/she signes the copyright agreement:

I hereby assign to the SOUTH AFRICAN SOCIETY FOR ENOLOGY AND VITICULTURE (SASEV) the copyright of the text, tables, figures, supplementary material, illustrations and other information (the Material) submitted with the manuscript to be published in SOUTH AFRICAN JOURNAL OF ENOLOGY AND VITICULTURE (SAJEV) (the "Article"). The copyright becomes effective from the date the Article has been accepted for publication in SAJEV.

 

This is an open access journal, and the authors and journal should be properly acknowledged, when works are cited.

Author's may use the publishers version for teaching purposes, in books, theses, dissertations, conferences and conference papers.

A copy of the authors' publishers version may also be hosted on the following websites:

  • Non-commercial personal webpage or blog.
  • Institutional webpage.
  • Authors Institutional Repository.

The following notice should accompany such a posting on the website: This is an electronic version of an article published in SAJEV, Volume XXX, number XXX, pages XXX - XXX, DOI.   Authors should also supply a hyperlink to the original paper or indicate where the original paper (www.journals.ac.za/index.php/sajev/) may be found.

Authors publishers version, affiliated with the Stellenbosch University will be automatically deposited in the University's Institutional Repository SUNScholar.

Articles as a whole, may not be re-published with another journal.

The following license applies:

Attribution CC BY-NC-ND 4.0