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NMR methodologies in the analysis of blueberries.
MedLine Citation:
PMID:  24668393     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
An NMR analytical protocol based on complementary high and low field measurements is proposed for blueberry characterization. Untargeted NMR metabolite profiling of blueberries aqueous and organic extracts as well as targeted NMR analysis focused on anthocyanins and other phenols are reported. Bligh-Dyer and microwave-assisted extractions were carried out and compared showing a better recovery of lipidic fraction in the case of microwave procedure. Water-soluble metabolites belonging to different classes such as sugars, amino acids, organic acids and phenolic compounds as well as metabolites soluble in organic solvent such as triglycerides, sterols and fatty acids were identified. Five anthocyanins (malvidin-3-glucoside, malvidin-3-galactoside, delphinidin-3-glucoside, delphinidin-3-galactoside, and petunidin-3-glucoside) and 3-O-α-L-rhamnopyranosyl quercetin were identified in solid phase extract. The water status of fresh and withered blueberries was monitored by portable NMR and Fast Field Cycling NMR. (1) H depth profiles, T2 transverse relaxation times and dispersion profiles were found to be sensitive to the withering. This article is protected by copyright. All rights reserved.
Authors:
Donatella Capitani; Anatoly P Sobolev; Maurizio Delfini; Silvia Vista; Riccarda Antiochia; Noemi Proietti; Salvatore Bubici; Gianni Ferrante; Simone Carradori; Flavio Roberto De Salvador; Luisa Mannina
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-3-25
Journal Detail:
Title:  Electrophoresis     Volume:  -     ISSN:  1522-2683     ISO Abbreviation:  Electrophoresis     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-3-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8204476     Medline TA:  Electrophoresis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
This article is protected by copyright. All rights reserved.
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