Article (Scientific journals)
Tunisian Table Olive Phenolic Compounds And Their Antioxidant Capacity
Ben Othman, N.; Weber, Dominique; Thonart, Philippe et al.
2008In Journal of Food Science, 73 (4), p. 235-C240
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Keywords :
antioxidant; hydroxytyrosol; phenolic; table olives
Abstract :
[en] For the 1st time, 4 olive cultivars, theMeski, Chemlali, Besbessi, and Tounsi, fromthe Tunisian market were investigated to evaluate the phenolic compounds’ contribution in nutritional value of table olives. From the Meski cultivar, we have chosen 4 different samples to evaluate differences within the same cultivar. Basic characteristics and total phenolic content were evaluated in flesh and kernel. The highest value of flesh phenolic content was observed in sample M4 of the Meski cultivar; however, the lowest value was observed in the Besbessi cultivar and they were 1801 and 339 mg GA/100 g dry weight, respectively. Themain simple phenolic compounds identified in flesh extracts are hydroxytyrosol, tyrosol, and vanillic acid. Oleuropein was not detected in any samples. The antioxidant activity of Tunisian olive flesh varies between 212 and 462 μM TEAC/g of dry weight. Antioxidant activity of olives was related to their phenolic content but we found a low correlation between phenolic content and TEAC
Disciplines :
Food science
Author, co-author :
Ben Othman, N.
Weber, Dominique ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
Thonart, Philippe ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
Hamdi, M.
Language :
English
Title :
Tunisian Table Olive Phenolic Compounds And Their Antioxidant Capacity
Publication date :
2008
Journal title :
Journal of Food Science
ISSN :
0022-1147
eISSN :
1750-3841
Publisher :
Wiley
Volume :
73
Issue :
4
Pages :
C235-C240
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 November 2009

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