Document Detail


Ferulic acid content and appearance determine the antioxidant capacity of arabinoxylanoligosaccharides.
MedLine Citation:
PMID:  24070339     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
To investigate the antioxidant capacity of ferulic acid (FA) in conjunction with prebiotic arabinoxylanoligosaccharides (AXOS), procedures for the production of FA enriched, depleted and cross-linked AXOS were developed and samples were analyzed using the Trolox Equivalent Antioxidant Capacity (TEAC) and Oxygen Radical Absorbance Capacity (ORAC) assays. Results showed that not only the level of FA, but also the condition under which it appears (free, bound or dimerized) impacts the antioxidant capacity of FA containing AXOS samples. Although esterification of FA on AXOS and cross-linking of AXOS through dehydrodiferulic acid formation lowered the antioxidant capacity of FA by 30% and 55%, respectively, as determined with the TEAC test, the antioxidant capacity of these components still remained high compared to Trolox, a water-soluble vitamin E analog. Total antioxidant capacity of the AXOS samples determined by the ORAC assay resulted in less outspoken differences between the different forms of FA than seen with the TEAC test. Feruloylated AXOS can hence function as strong, water-soluble antioxidants.
Authors:
Jeroen Snelders; Emmie Dornez; Jan A Delcour; Christophe M Courtin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-9-27
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2013 Sep 
Date Detail:
Created Date:  2013-9-27     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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