Comparative Antimicrobial Activities of some Mediterranean Sea Seaweeds-derived Extracts

Abdel-Tawab, Asmaa M.; Salah, Sally; Elshehry, Ahmed E.; Ibrahiem, Hassan A.H.; El Gamal, Hanan M. L.; Ghonam, Hasnaa E-B.

doi:10.21608/ejchem.2024.319686.10389

	Comparative Antimicrobial Activities of some Mediterranean Sea Seaweeds-derived Extracts
Egyptian Journal of Chemistry
Volume 68, Issue 5, May 2025, Page 539-547 PDF (4.4 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2024.319686.10389
View on SCiNiTO
Authors
Asmaa M. Abdel-Tawab ¹; Sally Salah²; Ahmed E. Elshehry³; Hassan A.H. Ibrahiem⁴; Hanan M. L. El Gamal⁵; Hasnaa E-B. Ghonam⁶
¹1 Marine biotechnology and Natural products laboratory, National institute of Oceanography and Fishers (NIOF), Egypt.
²Nutrition and Food Safety Department, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Egypt
³National Institute of Oceanography and Fisheries, NIOF,Cairo, Egypt, Marine Biotechnology and Natural Products department
⁴National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt, Marine Microbiology Department.
⁵Nutrition and Food Safety Department, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Egypt.
⁶National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt, Marine Biotechnology and Natural Products department.
Abstract
In the present study, a quantitative and qualitative comparison of major flavonoids and phenolic components of 6 species of Mediterranean Sea seaweeds collected from Stanley to Abu Qir Bay, Alexandria, Egypt (Enteromorpha intestinalis, Ulva lactuca, Punctaria plantaginea, Colpomenia sinuosea, Dictyota dichotoma and Corallina officinalis) were carried out using HPLC instrument. Also, the chemical profile of the non-polar components extracted by the petroleum ether solvent of these species was identified using GC-MS technique. n-hexadecanoic acid (8) was identified in all petrolum ether extracts (p1-p6) recording 18.0%, 17.2%, 17.2%, 20.2%, 19.2% and 16.8% for E. intestinalis, U. lactuca, P. plantaginea, C. sinuosea, D. dichotoma and C.officinalis (p1-p6), respectively. The antimicrobial activity of the obtained extracts was evaluated and E. intestinalis crude extract (M1) was the effective antimicrobial agent. Total phenolic and flavonoid contents were also evaluated for the selected six Mediterranean Sea seaweeds species. D. dichotoma and C. officinalis recorded the highest phenolic and flavonoid contents among all selected species, 31.42 mg/g, 23.42 mg/g for phenolic and 173.9 mg/g, 165.4 mg/g for flavonoid, respectively. These findings are compatible with HPLC analyses as D. dichotoma contains eight flavonoids and eleven phenolic constituents, in addition to C. officinalis also contains eight flavonoids and ten phenolic compounds.
Keywords
Punctaria plantaginea; Colpomenia Sinuosea; Dictyota dichotoma; Phaeophyceae


Statistics Article View: 222 PDF Download: 122