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Publication Type J
Authors Trabelsi, N., P. Waffo-Teguo, M. Snoussi, R. Ksouri, J. M. Merillon, A. Smaoui and C. Abdelly
Title Variability of phenolic composition and biological activities of two Tunisian halophyte species from contrasted regions
Source Acta Physiologiae Plantarum
Author Keywords Limoniastrum species Provenances Phenolic contents Biological activities HPLC analysis ANTIMICROBIAL ACTIVITIES GREEN TEA ANTIOXIDANT ACTIVITY MEDICINAL-PLANTS STRESS TOLERANCE SALT STRESS L. CONSTITUENTS PROANTHOCYANIDINS POLYPHENOLS Plant Sciences
Abstract The present study consists in evaluating the inter- and intraspecific variability of phenolic contents and biological capacities of Limoniastrum monopetalum L. and L. guyonianum Boiss. extracts. Ultimately, they were subjected to HPLC for phenolic identification. Results showed a great variation of phenolic content as function of species and localities. In fact, L. guyonianum extracts (El Akarit) contained the highest polyphenol (57 mg GAE g(-1) DW), flavonoid (9.47 mg CE g(-1) DW) and condensed tannin contents (106.58 mg CE g(-1) DW). These amounts were accompanied by the greatest total antioxidant activity (128.53 mg GAE g(-1) DW), antiradical capacity (IC50 = 4.68 mu g/ml) and reducing power (EC50 = 120 mu g/ml). In addition, L. monopetalum and L. guyonianum extracts exhibited an important and variable antibacterial activity with a diameter of inhibition zone ranging from 6.00 to 14.83 mm. Furthermore, these extracts displayed considerable antifungal activity. L. monopetalum extracts (Enfidha) showed the strongest activity against Candida glabrata and C. krusei with a diameter exceeding 12 mm. The phytochemical investigation of these extracts confirmed the variability of phenolic composition, since the major phenolic compound varied as a function of species and locality. These findings suggest that these two halophytes may be a new source of natural antioxidants that are increasingly important for human consumption, as well as for agro-food, cosmetic and pharmaceutical industries.
Author Address [Trabelsi, Najla; Ksouri, Riadh; Smaoui, Abderrazek; Abdelly, Chedly] Ctr Biotechnol Borj Cedria, Lab Plantes Extremophiles, Hammam Lif 2050, Tunisia. [Trabelsi, Najla; Waffo-Teguo, Pierre; Merillon, Jean Michel] Univ Bordeaux 2, Lab Sci Vegetales Mycol & Biotechnol, GESVAB, EA 3675,UFR Pharm,ISVV, F-33076 Bordeaux, France. [Snoussi, Mejdi] Ctr Rech & Technol Eaux, Lab Traitement & Recyclage Eaux, Hammam Lif 2050, Tunisia. Trabelsi, N (reprint author), Ctr Biotechnol Borj Cedria, Lab Plantes Extremophiles, BP 901, Hammam Lif 2050, Tunisia. najlatrabe3351@gmail.com
ISSN 0137-5881
ISBN 0137-5881
29-Character Source Abbreviation Acta Physiol. Plant.
Publication Date Mar
Year Published 2013
Volume 35
Issue 3
Beginning Page 749-761
Digital Object Identifier (DOI) 10.1007/s11738-012-1115-7
Unique Article Identifier WOS:000315035000012
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