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Polyphenols, flavonoids, antioxidant activity in leaves and flowers of T unisian G lobularia alypum L . ( G lobulariaceae)
Author(s) -
Chograni Hnia,
Riahi Leila,
Zaouali Yosr,
Boussaid Mohamed
Publication year - 2013
Publication title -
african journal of ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.499
H-Index - 54
eISSN - 1365-2028
pISSN - 0141-6707
DOI - 10.1111/aje.12041
Subject(s) - flavonoid , antioxidant , polyphenol , food science , chemistry , phenols , phenol , scavenging , botany , biochemistry , biology , organic chemistry
Leaves and flowers from Tunisian Globularia alypum were assessed for their phenolic and flavonoid contents and antioxidant activity. Phenolic (15.5–22.30 mg GAE g −1 DW ) and flavonoid (3.63–4.72 mg RE g −1 DW ) contents varied according to plant part. G lobularia alypum leaves exhibited the highest phenol and flavonoid contents, and displayed the highest antioxidant activity, based on radical‐scavenging activity (295 μmol TEAC g −1 DW ) and ferric reducing power (24.27 mmol Fe2+/l). The obtained results demonstrated that some of the isolated compounds play an important role for the antioxidant activity of G . alypum and give a scientific basis to the use of this plant in traditional medicine. The methanolic extract of G . alypum could be considered as a source of potential antioxidants and will promote the reasonable usage of this plant in food technology and processing as well as for medical use.