Impact of Chitosan-Genipin Films on Volatile Profile of Wine along Storage
authors Rocha, MAM; Coimbra, MA; Rocha, SM; Nunes, C
nationality International
journal APPLIED SCIENCES-BASEL
author keywords chitosan; genipin; Maillard reaction; Strecker degradation; hydrophobic interaction
keywords HIGH-PRESSURE TREATMENTS; FINING AGENTS; RED WINE; WHITE; STABILITY; BENTONITE; QUALITY; OCHRATOXIN; EVOLUTION; CHARACTER
abstract Featured Application New opportunities for winemaking industries are open by the use of chitosan-genipin films as technological adjuvant for white wine preservation to replace sulfur dioxide, maintaining their varietal key odorants and organoleptic characteristics. Chitosan-genipin films have been proposed for preservation of white wine, maintaining their varietal key odorants and organoleptic characteristics of sulfur dioxide treated wines. Nevertheless, these wines showed aroma notes that slightly distinguish them. It is possible that during the contact of films with wine for at least 2 months, after fermentation and prior to bottling, interactions or chemical reactions are promoted. In this work, wine model solutions with volatile compounds in contact with chitosan-genipin films were performed to evaluate their evolution along time. To complement these analyses, the volatile compounds of white and red wines kept in contact with chitosan-genipin films during 2 and 8 months were also studied. The results obtained allowed us to conclude that the contact of chitosan-genipin films with both white and red wines tend to retain long carbon chain volatile compounds, such as ethyl hexanoate and octan-3-one. It also promoted the formation of Maillard reaction products, such as furfural by dehydration of pentoses and Strecker aldehydes, such as 3-methylbutanal and phenylacetaldehyde, by degradation of amino acids. This study reveals that the use of chitosan-genipin films for wine preservation is also able to promote the formation of compounds that can modulate the wines aroma, maintaining the varietal notes.
publisher MDPI
isbn 2076-3417
year published 2021
volume 11
issue 14
digital object identifier (doi) 10.3390/app11146294
web of science category 15
subject category Chemistry, Multidisciplinary; Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Physics, Applied
unique article identifier WOS:000678908700001
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journal analysis (jcr 2019):
journal impact factor 2.474
5 year journal impact factor 2.458
category normalized journal impact factor percentile 56.225
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