Sterols from the brown alga Cystoseira foeniculacea: Degradation of fucosterol into saringosterol epimers

Bouzidi, Naïma; Viano, Yannick; Ortalo-Magné, Annick; Seridi, Halima; Alliche, Zahia; Daghbouche, Yasmina; Culioli, Gérald; Hattab, Mohamed El

doi:10.1016/j.arabjc.2014.11.004

Cited by 21 publications

(11 citation statements)

References 30 publications

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“…The lipid yields for each extraction method for the two species are presented in 4reported that lipids were not present in large proportion in algae compared to other constituents. Regarding the genus Cystoseira, these levels are considered to be lower than those obtained from C. foeniculacea (22) and C. osmundacea (23). In L. papillosa, a species of the genus Laurencia, a comparable result in total lipids was obtained (24).…”

Section: Lipids Extraction Yieldmentioning

confidence: 99%

Fatty acids composition of Cystoseira sauvageauana and Laurencia pinnatifida collected from the Algerian coast

Kord

Cherif

Amiali³

et al. 2019

ACTA PERIOD TECHN

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Algae are a significant part of biodiversity and studies on their bioactive compounds are numerous. The aim of this work was to study the fatty acid profile of Cystoseira sauvageauana and Laurencia pinnatifida collected from the Algerian coast. Different conventional and alternative methods were used for lipids extraction and GCMS analysis for fatty acids methyl esters identification. The lipids content was low (˂1%) for the two species while the highest yield was obtained by Folch method assisted with a pulsed electric field. The identified fatty acids in both species ranged from C14 to C20 carbon atoms, of which palmitic acid was the major compound. Regarding polyunsaturated fatty acids, in C. sauvageauana arachidonic acid (C20:4) was the major constituent in extraction methods using the chloroform: methanol mixture as solvent, while in the method using hexane, linoleic acid (C18:2) was found as the main constituent. In L. pinnatifida, eicosapentaenoic acid (C20:5) was the major fatty acid followed by arachidonic acid. In comparison between the two species the best polyunsaturated fatty acids/saturated fatty acids ratio was found in ultrasound assisted methods in C. sauvageauana. The omega-6/omega-3 ratio was considered satisfactory for both species; however, it was better in L. pinnatifida. The obtained results showed the influence of the solvent and the extraction method on the total lipid yield and the fatty acids composition in algal extracts. In addition, these two species could find an application in the field of food and pharmaceuticals.

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Section: Lipids Extraction Yieldmentioning

confidence: 99%

Fatty acids composition of Cystoseira sauvageauana and Laurencia pinnatifida collected from the Algerian coast

Kord

Cherif

Amiali³

et al. 2019

ACTA PERIOD TECHN

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“…Brown algae are chemically insufficiently characterized. Some studies reported the determination of sterols in brown algae (4). Cystoseira sp, are mostly used for the extraction and purification of alginates (5).…”

Section: Introductionmentioning

confidence: 99%

Chemical characterization of essential oils and antioxidant activity of Dictyota dichotoma and Dictyopteris membranacea

Benfares¹,

Kord²,

Boudjema

et al. 2019

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The work focuses on the study of two brown algae Dictyota dichotoma and Dictyopteris membranacea. Extracts obtained by different organic solvents (dichloromethane, hexane, acetone, methanol, chloroform) were screened for their DPPH antiradical activity, whereas essential oils obtained by steam distillation were chemically characterized by GC-MS. Steam distillation yielded 0.07 and 0.095% of the essential oils for Dictyota dichotoma and Dictyopteris membranacea, respectively. The chemical screening of the essential oils of Dictyopteris membranacea and Dictyota dichotoma showed similar chemical profiles. Namely, trans-anethole showed to be the main component in both studied oils, yielding 12.28% and 10.70% for Dictyopteris membranacea and Dictyota dichotoma, respectively. Antioxidant activity of extracts was expressed by IC 50 values and was in the range 0.375-1.72 mg/ml.

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“…The extracts were then partitioned via solvent fractionation [13,25]. After solvent dissolution under reduced pressure, the organic extracts were fractionated using silica gel column chromatography with a mixture of solvents of increasing polarity [14,22,23,26]. The fraction was eluted using a solvent to remove fatty acids, which were then analyzed further [26].…”

Section: Characteristics and Structure Of Fucosterolmentioning

confidence: 99%

Fucosterol of Marine Macroalgae: Bioactivity, Safety and Toxicity on Organism

et al. 2021

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Fucosterol (24-ethylidene cholesterol) is a bioactive compound belonging to the sterol group that can be isolated from marine algae. Fucosterol of marine algae exhibits various biological activities including anti-osteoarthritic, anticancer, anti-inflammatory, anti-photoaging, immunomodulatory, hepatoprotective, anti-neurological, antioxidant, algicidal, anti-obesity, and antimicrobial. Numerous studies on fucosterol, mainly focusing on the quantification and characterization of the chemical structure, bioactivities, and health benefits of fucosterol, have been published. However, there is no comprehensive review on safety and toxicity levels of fucosterol of marine algae. This review aims to discuss the bioactivities, safety, and toxicity of fucosterol comprehensively, which is important for the application and development of fucosterol as a bioactive compound in nutraceutical and pharmaceutical industries. We used four online databases to search for literature on fucosterol published between 2002 and 2020. We identified, screened, selected, and analyzed the literature using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses method and identified 43 studies for review. Despite the potential applications of fucosterol, we identified the need to fill certain related research gaps. Fucosterol exhibited low toxicity in animal cell lines, human cell lines, and animals. However, studies on the safety and toxicity of fucosterol at the clinical stage, which are required before fucosterol is developed for the industry, are lacking.

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Sterols from the brown alga Cystoseira foeniculacea: Degradation of fucosterol into saringosterol epimers

Cited by 21 publications

References 30 publications

Fatty acids composition of Cystoseira sauvageauana and Laurencia pinnatifida collected from the Algerian coast

Fatty acids composition of Cystoseira sauvageauana and Laurencia pinnatifida collected from the Algerian coast

Chemical characterization of essential oils and antioxidant activity of Dictyota dichotoma and Dictyopteris membranacea

Fucosterol of Marine Macroalgae: Bioactivity, Safety and Toxicity on Organism

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