Document Detail


Saccharomyces cerevisiae oxidative response evaluation by cyclic voltammetry and gas chromatography - mass spectrometry.
MedLine Citation:
PMID:  22746983     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study is focused on the evaluation of the impact of Saccharomyces cerevisiae metabolism in the antioxidant capacity of a synthetic wine during fermentation. A bioanalytical pipeline, which allows for biological systems fingerprinting and sample classification by combining electrochemical features with biochemical background is proposed. To achieve this objective, alcoholic fermentations of a minimal medium supplemented with phenolic acids, were evaluated daily during 11 days, for electrochemical profile, phenolic acids and the volatile fermentation fraction, using cyclic voltametry, HPLC-DAD and HS-SPME/GC-MS (target and non-target approaches), respectively. It was found that acetic acid, 2-phenylethanol and isoamyl acetate are compounds with a significative contribution for samples metabolic variability and the electrochemical features demonstrated redox-potential changes throughout the alcoholic fermentations, showing at the end, a similar pattern to normal wines. Moreover, Saccharomyces cerevisiae had the capacity of producing chlorogenic acid in the supplemented medium fermentation from simple precursors present in the minimal medium.
Authors:
Cristiana Cordeiro Castro; Caitriona Frances Gunning; Carla Marques Oliveira; José António Gomes Couto; Jose Antonio Teixeira; Rui Costa Martins; Antonio Cesar Silva Ferreira
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-2
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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