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Continuous wine making by γ-alumina-supported biocatalyst

Continuous wine making by γ-alumina-supported biocatalyst The main objective of the present work was the removal of aluminum from wines produced by γ-alumina-supported yeast cells. Reagents such as Na2CO3, NH4OH, albumin, and Ca(OH)2 were used. Calcium in the presence of albumin was effective, whereas other reagents were not so effective. Because of the improved aroma and taste of distillates produced by γ-alumina-supported biocatalyst, volatile byproducts of distillates were analyzed. They were also assessed by sensory tests. Methanol, acetaldehyde, ethyl acetate, propanol-1, isobutyl alcohol, and amyl alcohols were determined in distillates. It was noted that the amounts of higher alcohols and amyl alcohols decreased as the temperature of fermentation dropped, leading to a product of improved quality and reduced toxicity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Biochemistry and Biotechnology Springer Journals

Continuous wine making by γ-alumina-supported biocatalyst

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References (7)

Publisher
Springer Journals
Copyright
Copyright © 2000 by Humana Press Inc.
Subject
Chemistry; Biotechnology; Biochemistry, general
ISSN
0273-2289
eISSN
1559-0291
DOI
10.1385/ABAB:89:1:1
Publisher site
See Article on Publisher Site

Abstract

The main objective of the present work was the removal of aluminum from wines produced by γ-alumina-supported yeast cells. Reagents such as Na2CO3, NH4OH, albumin, and Ca(OH)2 were used. Calcium in the presence of albumin was effective, whereas other reagents were not so effective. Because of the improved aroma and taste of distillates produced by γ-alumina-supported biocatalyst, volatile byproducts of distillates were analyzed. They were also assessed by sensory tests. Methanol, acetaldehyde, ethyl acetate, propanol-1, isobutyl alcohol, and amyl alcohols were determined in distillates. It was noted that the amounts of higher alcohols and amyl alcohols decreased as the temperature of fermentation dropped, leading to a product of improved quality and reduced toxicity.

Journal

Applied Biochemistry and BiotechnologySpringer Journals

Published: Apr 12, 2007

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