Bioprospecting of Targeted Phenolic Compounds of IDictyota dichotoma/I, IGongolaria barbata/I, IEricaria amentacea/I, ISargassum hornschuchii/I and IEllisolandia elongata/I from the Adriatic Sea Extracted by Two Green Methods

The content of bioactive compounds in four brown and one red algae from the Adriatic Sea (Dictyota dichotoma, Gongolaria barbata, Ericaria amentacea, Sargassum hornschuchii and Ellisolandia elongata) is explored. The efficiency of two different extraction methods viz. ultrasound-assisted extraction...

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Bibliographic Details
Published in:Marine drugs 2023-01, Vol.21 (2)
Main Authors: Castillo, Aly, Celeiro, Maria, Lores, Marta, Grgić, Kristina, Banožić, Marija, Jerković, Igor, Jokić, Stela
Format: Article
Language:English
Subjects:
Analysis
Bioprospecting
Chemical properties
Distribution
Forecasts and trends
Identification and classification
Methods
Phenols
Red algae
Varieties
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Summary:The content of bioactive compounds in four brown and one red algae from the Adriatic Sea (Dictyota dichotoma, Gongolaria barbata, Ericaria amentacea, Sargassum hornschuchii and Ellisolandia elongata) is explored. The efficiency of two different extraction methods viz. ultrasound-assisted extraction (UAE) and matrix solid-phase dispersion (MSPD) to obtain the extracts rich in phenolic compounds was compared. The effect of the extraction solvent to modulate the phenolic profile was assessed. In general, the mixture ethanol/water in an isovolumetric proportion showed the best results. The total phenolic content (TPC) and antioxidant activity (AA), as well as the individual polyphenolic profile, were evaluated for five target algae. TPC values ranged between 0.2 mg GAE/g (for E. elongata) and 38 mg GAE/g (for S. hornschuchii). Regarding the quantification of individual polyphenols by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis, the presence of a high number of hydroxybenzoic acid derivatives (mainly of 3- and 4-hydroxybenzoic acids) in all species was noted. In G. barbata their concentrations reached up to 500 mg/kg. IC[sub.50] values (ABTS assay) ranged between 44 mg/L (for S. hornschuchii) and 11,040 mg/L (for E. elongata). This work contributes to the in-depth characterization of these little-explored algae, showing their potential as a natural source of phenolic compounds.
ISSN:1660-3397
1660-3397
DOI:10.3390/md21020097