Pubblicazioni

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

Autori:
Cavagna M; Dell'Anna R; Monti F; Rossi F; Torriani S
Titolo:
Use of ATR-FTIR microspectroscopy to monitor autolysis of Saccharomyces cerevisiae cells in a base wine
Anno:
2010
Tipologia prodotto:
Articolo in Rivista
Tipologia ANVUR:
Articolo su rivista
Lingua:
Inglese
Referee:
Nome rivista:
Journal of Agricultural and Food Chemistry
ISSN Rivista:
0021-8561
N° Volume:
58
Numero o Fascicolo:
1
Intervallo pagine:
39-45
Parole chiave:
ATR-FTIR microspectroscopy; autolysis; S. cerevisiae
Breve descrizione dei contenuti:
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.
Id prodotto:
56099
Handle IRIS:
11562/342104
depositato il:
23 aprile 2012
ultima modifica:
12 novembre 2019
Citazione bibliografica:
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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Progetti Collegati
Titolo Dipartimento Responsabili
Studio mediante microspettroscopia FTIR del processo autolitico in lieviti per la produzione enologica Dipartimento Informatica Francesca Monti, Sandra Torriani, Franca Rossi, Matteo Cavagna
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