Submitted: 16 Mar 2023
Revision: 03 Jun 2023
Accepted: 14 Jun 2023
ePublished: 29 Jun 2023
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Avicenna J Clin Microbiol Infect. 2023;10(2): 65-69.
doi: 10.34172/ajcmi.3472
  Abstract View: 426
  PDF Download: 248

Original Article

Variability on the Phytochemical Composition, Antioxidant and Antimicrobial Activities of Ruppia cirrhosa Extract Using Two Different Methods of Extraction

Emna Chaabani 1,2 ORCID logo, Iness Bettaieb Rebey 1 ORCID logo, Wissem Aidi Wannes 1* ORCID logo, Riadh Ksouri 1 ORCID logo, Abdessalem Shili 2 ORCID logo

1 Laboratory of Medicinal and Aromatic Plants, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
2 Département Génie Halieutique et Environnement, Unité de Recherche Ecosystèmes et Ressources Aquatiques, Université de Carthage, Institut National Agronomique de Tunisie, 43 Avenue Charles Nicolle, 1082 Tunis, Tunisia
*Corresponding Author: Wissem Aidi Wannes, Email: aidiwissem@yahoo.fr


Background: Nowadays, there is increasing attention to the discovery of new bioactive substances from marine sources. This research aimed to characterize the phytochemical composition as well as antioxidant and antimicrobial activities of Tunisian Ruppia cirrhosa extracts (RCEs) using two different extraction methods.

Methods: RCEs were obtained by two different extraction methods: maceration and successive extraction. The determination of polyphenolic contents and antioxidant activity was made by calorimetric assay, and the effect of RCE was observed against pathogenic bacteria and fungi using the solid diffusion method.

Results: The successive extraction of R. cirrhosa extract relatively showed higher total phenol (38.1 mg GAE/g) and condensed tannin (18.07 mg CE/g) contents than the maceration extraction (35.43 mg EAG/g and 12.99 mg CE/g, respectively). However, the total flavonoid amount of RCE was higher in the maceration extraction (33.09 mg CE/g) than in the successive extraction (21.27 mg CE/g). The total antioxidant capacity of RCE indicated a decrease in this activity after fractionation. Indeed, the activity of RCE decreased from 47.8 to 37.83 mg GAE/g, and RCE obtained by the two extraction methods showed moderate antioxidant activity using reducing power (IC50=380-490 µg/mL) and β-carotene bleaching (IC50=110-310 μg/mL) assays. Furthermore, RCEs obtained by maceration had the greatest antibacterial activity against all tested strains (IZ=3.33-9.33 mm) except Salmonella typhimurium (IZ=2 mm), Enterococcus faecalis (IZ=6 mm), and Streptococcus aureus (3.67 mm) as compared to those obtained by successive extraction. The strains of Candida had a sensitivity for R. cirrhosa extracts obtained by maceration. Indeed, R. cirrhosa extracts obtained by successive extraction had higher inhibitory activity against Candida krusei deduced through an inhibition diameter of 6 mm.

Conclusion: It can be concluded that R. cirrhosa extract is rich in bioactive molecules, and it has an extremely promising biological potential.

Please cite this article as follows: Chaabani E, Rebey IB, Wannes WA, Ksouri R, Shili A. Variability on the phytochemical composition, antioxidant and antimicrobial activities of Ruppia cirrhosa extract using two different methods of extraction. Avicenna J Clin Microbiol Infect. 2023; 10(2):65-69. doi:10.34172/ajcmi.3472
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