Publications

Use of ATR-FTIR microspectroscopy to monitor autolysis of Saccharomyces cerevisiae cells in a base wine  (2010)

Authors:
Cavagna M; Dell'Anna R; Monti F; Rossi F; Torriani S
Title:
Use of ATR-FTIR microspectroscopy to monitor autolysis of Saccharomyces cerevisiae cells in a base wine
Year:
2010
Type of item:
Articolo in Rivista
Tipologia ANVUR:
Articolo su rivista
Language:
Inglese
Referee:
Name of journal:
Journal of Agricultural and Food Chemistry
ISSN of journal:
0021-8561
N° Volume:
58
Number or Folder:
1
Page numbers:
39-45
Keyword:
ATR-FTIR microspectroscopy; autolysis; S. cerevisiae
Short description of contents:
In this study, we evaluated the potentialities of ATR-FTIR microspectroscopy coupled to PCA in monitoring the major biochemical changes that occur during the autolysis of yeasts used for sparkling wine production. For this purpose, mid-infrared measurements were made on cells of the model strain Saccharomyces cerevisiae EC1118 in the course of autolysis induced at 30 C for five days in a model and in a base wine. By relating principal component loadings to the corresponding absorption bands, it was shown that they well describe compositional modifications induced by autolytic process on yeast cells, such as partial hydrolysis of proteins, increase of peptides, free nucleotides, lipids, mannans, and β-1,3 glucans. The corresponding score-score plots allowed us to monitor the different kinetics and to distinguish among faster, intermediate, and slower processes. ATR-FTIR microspectroscopy coupled with PCA is proposed as a sensitive method that can provide useful information to select efficient yeast strains, capable of accelerated autolysis, to be used in the second fermentation and aging of sparkling wines.
Product ID:
56099
Handle IRIS:
11562/342104
Deposited On:
April 23, 2012
Last Modified:
October 22, 2019
Bibliographic citation:
Cavagna M; Dell'Anna R; Monti F; Rossi F; Torriani S, Use of ATR-FTIR microspectroscopy to monitor autolysis of Saccharomyces cerevisiae cells in a base wine «Journal of Agricultural and Food Chemistry» , vol. 58 , n. 12010pp. 39-45

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Title Department Managers
Studio mediante microspettroscopia FTIR del processo autolitico in lieviti per la produzione enologica Department Informatica Franca Rossi, Francesca Monti, Sandra Torriani, Matteo Cavagna
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