Fakhri A. Elabbar, Fadi A. Alziny and Mohammed G. Elgabaeli
The research of chemicals, biological and antioxidant activity of marine algae from Libyan coast is new trend in the natural product researchers in the Libyan university as this is the first marine natural product research under the name "marine algae are source of food and future medicine". In the Libyan coast there are several kinds of algae. Three of them were studied for their chemical and biological activity, Asparagopsis, Sargassum and Dictyotales were under study using classical color chemical tests and showed high Saponins concentration in Asparagopsis and low concentration in Sargassum and Dictyotales. Alkaloids, Coumarin and Anthraquinones are absent in all samples. Flavonoids are found in Asparagopsis and Sargassum while Tannines and Steroid are found only in Dictyotales. Antioxidant activity was examined by DPPH method and showed good activity in all samples with 41.7% in Asparagopsis. Antimicrobial activity was monitored for Four bacteria type (pseudomonas, Escherichia coli, Staphylococcus and Klebsiella), all type were affected by algae extracts and Asparagopsis showed the highest a effect on all microbes.
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