Evaluation of bioactive compounds in extracts obtained from three romanian marine algae species

Algae are used for many purposes: in food industry, animal feeding, medicine, cosmetic industry and for soil enrichment. There are also many secondary ways for using algae: producing alginates and derivates of algae used in industry. Nowadays researchers use to analyze algae for medical purposes, because they have a strong potential against many diseases, in alimentation because they act like protective and functional additives. In this present work it was studied the antioxidant activity and the total phenolics content of five different extracts of the three species of algae harvested from Romanian area of Black Sea shore (Ceramium rubrum, Cladophora vagabunda and Enteromorpha intestinalis) and it was performed a SPME-MS analisys for a screening of volatile compounds. From all five kinds of extractions the aim was to establish which solvent extracts better the phenolic compounds. After extractions it was studied the total phenolic content by Folin Ciocalteau method and antioxidant activity by DPPH assay was determined. The best results were obtained by extraction with water but also with others solvents good result were obtaineds. At the final of this study it was demonstrated that the wild marine algae from Black Sea have phenolic compounds with an antioxidative activity and also have some important volatile compounds that can be used in industry.