Document Detail


Isolation and identification of bioactive phenolic glucosides from thermally treated olive oil by-products.
MedLine Citation:
PMID:  23323788     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A liquid phase rich in bioactive compounds, such as phenols and sugars, is obtained from olive oil waste by novel thermal treatment. Two groups of fractions with common characteristics were obtained and studied after thermal treatment, acid hydrolysis, separation by ultrafiltration and chromatography and finally by Superdex Peptide HR. In the first group, which eluted at the same time as oligosaccharides with a low DP, an oleosidic secoiridoid structure conjugated to a phenolic compound (hydroxytyrosol) was identified as oleuropeinic acid, and three possible structures were detected. In the second fraction, glucosyl structures formed by hydroxytyrosol and one, two or three units of glucose, or tyrosol and glucose have been proposed. Verbascoside, a heterosidic ester of caffeic acid, in which hydroxytyrosol is linked to rhamnose-glucose, or one of its isomers was also identified. Neutral oligosaccharides bound to a phenol-containing compound could be antioxidant soluble fibers with bioactive properties.
Authors:
Fátima Rubio-Senent; Antonio Lama-Muñoz; Guillermo Rodríguez-Gutiérrez; Juan Fernández-Bolaños
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-16
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-17     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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