Comparative study of protein stabilization in white wine using zirconia and bentonite: Physicochemical and wine sensory analysis

Fernando N. Salazar, Isabel Achaerandio, Mariela A. Labbé, Carme Güell, Francisco López

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

A semi-industrial application of the continuous stabilization of white wine protein using a column packed with zirconia was studied and compared to the traditional bentonite treatment using a Macabeu white wine. Physicochemical and wine sensory properties were evaluated using a rating system and triangle tests. Continuous protein stabilization was analyzed in three residence times, and the equivalent of 300 BV of wine was used for both treatments. Wine protein content was reduced by 21%, 40%, and 42% using the continuous process with residence times of 7.5, 15, and 30 min, respectively, and by 61.4% using the bentonite treatment. The wines obtained from the packed column were protein stable up to 25, 75, and 175 BV for residence times of 7.5, 15, and 30 min, respectively. The amount of polyphenol removed was less than 10%, and similar amounts were removed from the wine regardless of residence time, while 20.6% of polyphenol was removed using bentonite. The physicochemical and sensory properties of wine treated with bentonite were similar to those of wine treated with zirconia.

Original languageEnglish
Pages (from-to)9955-9958
Number of pages4
JournalJournal of Agricultural and Food Chemistry
Volume54
Issue number26
DOIs
StatePublished - 27 Dec 2006
Externally publishedYes

Keywords

  • Adsorption
  • Bentonite
  • Unstable wine protein
  • Wine sensory analysis
  • Zirconia

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