Valorization of Residual Biomass from Sargassum filipendula for the Extraction of Phlorotannins and Pigments Using Eutectic Solvents DOI Open Access
Patrícia Rafaella de Mello,

Cristiane Nunes da Silva,

Bernardo Dias Ribeiro

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(5), P. 1345 - 1345

Published: April 28, 2025

Sargassum filipendula is a marine macroalgae, also known as brown algae. These species contain significant amounts of polysaccharides, such alginates, and phenolic compounds, including phlorotannins, with excellent biological properties. This study evaluated the extraction bioactive compounds from residual biomass using deep eutectic solvents based on alkanol amines combined polyols. The presented content 7.36% protein, 1.11% lipids, 20.51% ash, 14.88% moisture, 50.25% total fibers, 5.89% alginate. Preliminary screening identified N, N-(dimethylamino)-ethanol: benzyl alcohol (1.30:1) N-(dimethylamino)-ethanol:1,3-propanediol (1.83:1) most efficient for compounds. optimization process showed that temperature solid–liquid ratio significantly influenced (p < 0.05) photosynthetic pigments. Intermediate temperatures (74.4 °C 68.4 (1.83:1), lower solid-to-liquid (0.03) were optimal conditions to extract low-pigment phlorotannins selectively. In contrast, higher (120 °C) maximized (1.30) extracted 110.64 mg PGE/g 78.15 GAE/g phenolics, while produced 21.57 72.89 GAE/g, respectively. pigments reached maximum yield at 120 °C, (1.30:1), 21.61 µg/g chlorophylls 38.11 pheophytins, 1,3-propanediol provided 17.76 36.32 µg/g, extracts exhibited antioxidant activity 0.69 TE/mL in scavenging DPPH radicals, 24.42 ABTS 2.26 iron-reducing power. results demonstrate potential DESs sustainable recovery biomass.

Language: Английский

Valorization of Residual Biomass from Sargassum filipendula for the Extraction of Phlorotannins and Pigments Using Eutectic Solvents DOI Open Access
Patrícia Rafaella de Mello,

Cristiane Nunes da Silva,

Bernardo Dias Ribeiro

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(5), P. 1345 - 1345

Published: April 28, 2025

Sargassum filipendula is a marine macroalgae, also known as brown algae. These species contain significant amounts of polysaccharides, such alginates, and phenolic compounds, including phlorotannins, with excellent biological properties. This study evaluated the extraction bioactive compounds from residual biomass using deep eutectic solvents based on alkanol amines combined polyols. The presented content 7.36% protein, 1.11% lipids, 20.51% ash, 14.88% moisture, 50.25% total fibers, 5.89% alginate. Preliminary screening identified N, N-(dimethylamino)-ethanol: benzyl alcohol (1.30:1) N-(dimethylamino)-ethanol:1,3-propanediol (1.83:1) most efficient for compounds. optimization process showed that temperature solid–liquid ratio significantly influenced (p < 0.05) photosynthetic pigments. Intermediate temperatures (74.4 °C 68.4 (1.83:1), lower solid-to-liquid (0.03) were optimal conditions to extract low-pigment phlorotannins selectively. In contrast, higher (120 °C) maximized (1.30) extracted 110.64 mg PGE/g 78.15 GAE/g phenolics, while produced 21.57 72.89 GAE/g, respectively. pigments reached maximum yield at 120 °C, (1.30:1), 21.61 µg/g chlorophylls 38.11 pheophytins, 1,3-propanediol provided 17.76 36.32 µg/g, extracts exhibited antioxidant activity 0.69 TE/mL in scavenging DPPH radicals, 24.42 ABTS 2.26 iron-reducing power. results demonstrate potential DESs sustainable recovery biomass.

Language: Английский

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