Related Experiment Video
Updated: May 12, 2026
10:18
Valorization of the Red Seaweed Gracilaria gracilis Through a Biorefinery Approach
Published on: November 21, 2023
Green improved processes to extract bioactive phenolic compounds from brown macroalgae using Sargassum muticum as
Tanniou Anaëlle1, Esteban Serrano Leon, Vandanjon Laurent
1LEMAR UMR CNRS UBO IRD IFREMER 6539, Université de Bretagne Occidentale (UBO), Institut Universitaire Européen de la Mer (IUEM), Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280 Plouzané, France. anaelle.tanniou@live.fr
Talanta
|April 20, 2013
Summary
Alternative extraction methods like centrifugal partition extraction (CPE) and pressurized liquid extraction (PLE) are more effective than classical methods for isolating phenolic compounds from Sargassum muticum. CPE yielded the highest phenolic content and antioxidant activity.
Area of Science:
- Marine Botany
- Natural Product Chemistry
- Analytical Chemistry
Background:
- Sargassum muticum, a phaeophyte seaweed, is a potential source of bioactive phenolic compounds.
- Efficient extraction methods are crucial for isolating and valorizing these compounds.
- Classical solid/liquid extraction methods often lack the efficiency required for optimal phenolic compound recovery.
Purpose of the Study:
- To compare the efficiency of alternative extraction techniques (CPE, SFE, PLE) against classical methods for phenolic compounds from S. muticum.
- To evaluate selectivity, productivity, and antioxidant activities of the extracted phenolic compounds.
- To identify the most promising method for the sustainable valorization of S. muticum.
Main Methods:
- Comparative analysis of Centrifugal Partition Extraction (CPE), Supercritical Fluid Extraction (SFE), and Pressurized Liquid Extraction (PLE).
- Extraction efficiency assessed by total phenolic content (Folin-Ciocalteu assay) and antioxidant activity (DPPH assay, β-carotene bleaching).
- Method productivity and yield of phenolic compounds (% DW) were key evaluation metrics.
Main Results:
- Alternative methods significantly outperformed classical extraction techniques.
- CPE yielded the highest phenolic compounds (22.90% DW) with superior antioxidant activity.
- PLE (75:25 EtOH:water) showed good efficiency (10.18% DW) and is a greener alternative, meeting European standards.
Conclusions:
- CPE and PLE are highly effective and promising methods for extracting bioactive phenolic compounds from S. muticum.
- PLE offers a sustainable and compliant approach for the future valorization of S. muticum phenolic compounds.
- SFE was less effective in extracting the totality of active phenolic compounds.
Related Concept Videos
01:25Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
01:23Red Algae
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
01:19Other Algae
The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
01:21Green Algae
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
01:26Microbial Bioremediation of Hydrocarbons
Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...