Document Detail


Effects of the ripening stage on phenolic profile, phytochemical composition and antioxidant activity of date palm fruit.
MedLine Citation:
PMID:  23072597     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Four cultivars (Gondi, Gasbi, Khalt Dhahbi and Rtob Ahmar) of Tunisian date palm (Phoenix dactylifera L.) fruits at 3 maturation stages, besser, rutab and tamr, were analyzed for their antioxidant activities (AA) using 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals cation, and reducing power (RP) methods. The total phenolic (TPC), total flavonoid (TFC) and condensed tannins (CTC) contents were measured. Results showed that all samples have the highest TPC, TFC, CTC and AA at besser stage. A significant correlation (p<0.05) was found between TPC, TFC, CTC and AA during ripening. Sixteen phenolic compounds were identified and quantified by HPLC. The major ones were caffeic, ferulic, protocatechuic and catechin for the majority of cultivars. Our data indicate that common date fruits are rich in natural antioxidants that might be more widely used by both, the general population and the food industry as a source of bioactive human health promoter phytochemicals.
Authors:
Amira El Arem; Emna Behija Saafi; Beligh Mechri; Lamia Lahouar; Manel Issaoui; Mohamed Hammami; Lotfi Achour
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-17
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-17     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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