Isolation of turbinaric acid as a chemomarker of <i><scp>T</scp>urbinaria conoides</i> (J. Agardh) <scp>K</scp>ützing from <scp>S</scp>outh <scp>P</scp>acific Islands

Lann, Klervi Le; Kraffe, Edouard; Kervarec, Nelly; Cérantola, Stéphane; Payri, Claude; Stiger‐Pouvreau, Valérie

doi:10.1111/jpy.12235

Cited by 10 publications

(2 citation statements)

References 39 publications

(59 reference statements)

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“…Both species showed a similar fatty acid composition with palmitic acid (16:0), oleic acid (18:1n9) and arachidonic acid as the main components (Zubia et al 2003). Fatty acids could represent chemo-taxonomic markers, as demonstrated previously with turbinaric acid produced in T. conoides (Le Lann et al 2014). Terpenes will be discussed in the section devoted to secondary metabolites.…”

Section: Lipidssupporting

confidence: 64%

Macroalgal diversity for sustainable biotechnological development in French tropical overseas territories

Stiger‐Pouvreau

Zubia

2020

Botanica Marina

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This review focuses on the diversity of French tropical overseas macroalgae and their biotechnological applications. After listing the specific diversity, i.e. 641 species in French Antilles in the Atlantic Ocean, 560 species in the Indian Ocean, and 1015 species in the South Pacific Ocean, we present the potential of their metabolites and their main uses. Among the great diversity of metabolites, we focus on carbohydrates, proteins, lipids, pigments and secondary metabolites, in particular terpenes and phenolic compounds. The main applications of reef macroalgae are described in human and animal consumptions, phycocolloids extraction, production of active ingredients for health, cosmetics, agriculture, and bioremediation. For each application, we list what has been done, or will be done in French tropical overseas territories and point out the challenges faced when using this chemo-diversity, and problems linked to their exploitation. Finally, we discuss challenges to develop seaweed farming, their uses in carbon sequestration and resilience to global change, their uses for alternative proteins together with the production of bioenergy and biomaterials. As a conclusion, we encourage the research on the chemo-diversity of French reef macroalgae for industrial applications as these organisms represent a reservoir of active ingredients that is still insufficiently explored.

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Section: Lipidssupporting

confidence: 64%

Macroalgal diversity for sustainable biotechnological development in French tropical overseas territories

Stiger‐Pouvreau

Zubia

2020

Botanica Marina

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“…Also, in the context of sustainability, another objective was to find a method to rapidly monitor the presence/absence of phlorotannins in the purified extracts/fractions. Among the techniques allowing the visualization of phlorotannins, we chose proton Nuclear Magnetic Resonance spectroscopy ( 1 H NMR), which has already proved its worth in numerous studies, for the quantification of phloroglucinol in the tissues of the brown alga Ericaria selaginoides (formerly Cystoseira tamariscifolia ) [ 42 ], for obtaining chemical fingerprints for a taxonomic study of the genus Turbinaria [ 43 , 44 ], for the performance of a phlorotannins purification guidance in Pelvetia canaliculata [ 45 ], or for the detection of phenolic signals to compare different species of brown algae [ 46 ].…”

Section: Introductionmentioning

confidence: 99%

An Eco-Friendly Extraction and Purification Approach for Obtaining Active Ingredients for Cosmetics from Two Marine Brown Seaweeds

Gager,

Connan,

Cérantola

et al. 2024

Marine Drugs

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Brown seaweeds are attracting attention due to their richness in bioactive compounds, in particular, their phlorotannins. We present here a case study of two Fucales, Ascophyllum nodosum and Halidrys siliquosa, sustainably collected, to produce active polyphenols for the cosmetics sector. Phenolic contents of crude extracts, obtained by Accelerated Solvent Extraction (ASE), were more elevated in H. siliquosa at 100.05 mg/g dry weight (DW) than in A. nodosum (29.51 mg/g DW), considering 3 cycles with cell inversion. The temperature of extraction for a high phenolic content and high associated antioxidant activities close to positive controls was 150 °C for both algae and the use of only one cycle was enough. A semi-purification process using Solid-phase Extraction (SPE) was carried out on both ASE crude extracts (one per species). The majority of phlorotannins were found in the ethanolic SPE fraction for A. nodosum and the hydroethanolic one for H. siliquosa. The SPE process allowed us to obtain more concentrated fractions of active phenolic compounds (×1.8 and 2 in A. nodosum and H. siliquosa, respectively). Results are discussed in regard to the exploitation of seaweeds in Brittany and to the research of sustainable processes to produce active natural ingredients for cosmetics.

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Seasonal phenology and metabolomics of the introduced red macroalga Gracilaria vermiculophylla, monitored in the Bay of Brest (France)

et al. 2017

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00000International audienceSeaweeds represent one of the largest groups of marine aliens in Europe and constitute a large percentage of all introduced marine species. In Brittany, the red macroalga Gracilaria vermiculophylla has invaded the bare areas of brackish waters in saltmarshes. In the Bay of Brest, the alga forms dense monospecific mats on the mud surface and occupies an empty ecological niche, in association with the invasive halophyte, Spartina alterniflora. The phenology of G. vermiculophylla was studied through seasonal monitoring of biomass, density and size of fragments, complemented by metabolomic monitoring using 1H HR-MAS NMR chemical footprinting analyses. Moreover, lipids and pigments were quantified, using high-performance thin layer chromatography for the former and high-performance liquid chromatography and spectrophotometry for the latter. This rhodophyte is present throughout the year, never fixed to a substrate on the mud, with a maximum biomass in the summertime. Phenological observations on algal populations demonstrated a high capacity for fragmentation, with a majority of fragments shorter than 3 cm. Metabolomic analyses highlighted a temporal variability of lipids, pigments and osmolytes between seasons. These results, combined with ecological data, improve our understanding of the acclimation of G. vermiculophylla in Brittany, where it is mainly present in a vegetative state throughout the year. Our study represents an important contribution to understanding the ecological strategies used by this invasive seaweed to colonize and persist in the Bay of Brest

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Isolation of turbinaric acid as a chemomarker of Turbinaria conoides (J. Agardh) Kützing from South Pacific Islands

Cited by 10 publications

References 39 publications

Macroalgal diversity for sustainable biotechnological development in French tropical overseas territories

Macroalgal diversity for sustainable biotechnological development in French tropical overseas territories

An Eco-Friendly Extraction and Purification Approach for Obtaining Active Ingredients for Cosmetics from Two Marine Brown Seaweeds

Seasonal phenology and metabolomics of the introduced red macroalga Gracilaria vermiculophylla, monitored in the Bay of Brest (France)

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