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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Variations in phenolic compounds and antiradical scavenging activity of Olea europaea leaves and fruits extracts collected in two different seasons
Industrial Crops and Products, Volume 49, Year 2013
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Description
Olea europaea L. leaves and fruits were sampled in Mahdia region (center of Tunisia) according to the biological cycle of olive in order to analyze their phenolic compounds and to ascertain their antiradical scavenging activity. The harvesting time effect on HPLC analysis of olive leaves and fruits was significant. The results indicated that there is a decrease in total polyphenols, total o-diphenols and total flavonoids, when the leaves are still growing and in the ripe fruits, whereas they increase when the leaves have completed their growth and in the unripe fruits. Total tannins and carotenoids contents of leaves presented non similar variation to total polyphenols, o-diphenols and flavonoids during the vegetative cycle of olive. The comparison of the antioxidant capacity allowed us to conclude that that the leaves collected at two different stages of the vegetative cycle of olive showed higher value of antioxidant activity, based on ABTS radical-scavenging activity than the unripe and ripe fruits from the two studied varieties. © 2013 Elsevier B.V.
Authors & Co-Authors
Brahmi, Faten
Tunisia, Monastir
Faculté de Médecine de Monastir
Mechri, Beligh
Tunisia, Monastir
Faculté de Médecine de Monastir
Dhibi, Madiha
Tunisia, Monastir
Faculté de Médecine de Monastir
Hammami, M. B.
Tunisia, Monastir
Faculté de Médecine de Monastir
Statistics
Citations: 77
Authors: 4
Affiliations: 1
Identifiers
Doi:
10.1016/j.indcrop.2013.04.042
Study Locations
Tunisia