Document Detail

Saccharomyces cerevisiae oxidative response evaluation by cyclic voltammetry and gas chromatography - mass spectrometry.
MedLine Citation:
PMID:  22746983     Owner:  NLM     Status:  Publisher    
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.
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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