Influence of must racking and fining procedures on the composition of white wine

Authors

  • M. Puig-Deu
  • Elvira López-Tamames
  • S. Buxaderas
  • M. C. Torre-Boronat

DOI:

https://doi.org/10.5073/vitis.1996.35.141-145

Keywords:

white wine, Parellada variety, must clarification, racking, fining agents, bentonite, caseinate

Abstract

A study of the effects of two kinds of must clarification. settling or filtration by rotary vacuum filter and 5 juice fining treatments (bentonite, potassium caseinate, and combinations: bentonite + gelatin, and bentonite + caseinate + microcrystalline cellulose) on wine characteristics was carried out using must of the white cultivar Parellada. Although the general characteristics (ethanol, color, limpidity, residual sugars, pH and acidity) of Parerllada wines were not modified, some wine components (e.g. nitrogenous substances, phenolic compounds and aroma) were lowered according to the type of must racking and juice fining agent added. The percentage of decrease of wine characteristics due to the pre-fermentative fining agent depends on the type of must racking. Highest losses were recorded when rotary vacuum filters were used for must racking, and when bentonite (0.3-0.5 g/l) was added to the juice as a fining agent before fermentation.

Downloads

Published

2015-08-13

Issue

Vol. 35 No. 3 (1996): Vitis

Section

Article

License

The content of VITIS is published under a Creative Commons Attribution 4.0 license. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes to the original are clearly labeled. We do not prohibit or charge a fee for reuse of published content. The use of general descriptive names, trade names, trademarks, and so forth in any publication herein, even if not specifically indicated, does not imply that these names are not protected by the relevant laws and regulations. The submitting author agrees to these terms on behalf of all co-authors when submitting a manuscript. Please be aware that this license cannot be revoked. All authors retain the copyright on their work and are able to enter into separate, additional contractual arrangements.