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Degradation Kinetics of Anthocyanins from European Cranberrybush (Viburnum opulus L.) Fruit Extracts. Effects of Temperature, pH and Storage Solvent.
MedLine Citation:
PMID:  23023689     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
European cranberrybush (Viburnum opulus L.) fruits are well known for their biological properties, of which some are due to the presence of anthocyanins in the berries. Current literature provides little information concerning these fruits. The stability of anthocyanins from Viburnum opulus fruits, in aqueous and ethanolic extracts, stored under darkness for 7 days at different temperatures (2 °C, 37 °C and 75 °C) and pH values (pH = 3 and 7), was studied here. The lowest stability was showed by the anthocyanins from the water extract stored at 75 °C and pH = 7, with half-life and constant rate values of 1.98 h and 0.3488 h-1, respectively. The results showed a good correlation between the total anthocyanin content (determined using the pH differential method) and the time of storage, with determination coefficients varying from R2 = 0.9298 to R2 = 0.9971. Results indicate that the storage degradation of anthocyanins followed first-order reaction kinetics under all investigated conditions.
Authors:
Bianca Moldovan; Luminiţa David; Cristian Chişbora; Claudia Cimpoiu
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Publication Detail:
Type:  Journal Article     Date:  2012-09-28
Journal Detail:
Title:  Molecules (Basel, Switzerland)     Volume:  17     ISSN:  1420-3049     ISO Abbreviation:  Molecules     Publication Date:  2012  
Date Detail:
Created Date:  2012-10-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100964009     Medline TA:  Molecules     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  11655-66     Citation Subset:  IM    
Affiliation:
Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos Str., 400028, Cluj-Napoca, Romania. muntean@chem.ubbcluj.ro.
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