Insights of species-specific polar lipidome signatures of seaweeds fostering their valorization in the blue bioeconomy

Lopes, Diana; Melo, Tânia; Rey, Felisa; Costa, Elisabete da; Moreira, Ana S. P.; Abreu, Maria Helena; Domingues, Pedro; Lillebø, Ana I.; Calado, Ricardo; Domingues, M. Rosário M.

doi:10.1016/j.algal.2021.102242

Cited by 22 publications

(53 citation statements)

References 69 publications

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“…The classes of polar lipids identified in the two groups (FR and PT) are in agreement with those previously described for Portuguese Ulva rigida [29,33,39,79]. Among these classes showing significant variations, sulfolipids are the most recognized as bioactive compounds [11][12][13].…”

Section: Discussionsupporting

confidence: 89%

“…Despite the differences found in this work at level of the lipid species, it is of note that both batches (PT and FR) showed polar lipid species that were previously identified as contributing up to 50% similarity of the Ulva rigida cultivated in different seasons/years [79]. Effectively, a part of the lipid signature seems to remain conserved in Ulva species.…”

Section: Discussioncontrasting

confidence: 57%

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Polar Lipids of Commercial Ulva spp. of Different Origins: Profiling and Relevance for Seaweed Valorization

Moreira

Costa

Melo

et al. 2021

Foods

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Macroalgae of the genus Ulva have long been used as human food. Local environmental conditions, among other factors, can have an impact on their nutrient and phytochemical composition, as well as on the value of the seaweed for food and non-food applications. This study is the first to initiate a comparison between commercial Ulva spp. from different European origins, France (FR, wild-harvested Ulva spp.), and Portugal (PT, farm-raised Ulva rigida), in terms of proximate composition, esterified fatty acids (FA), and polar lipids. The ash content was higher in PT samples, while FR samples had higher levels of proteins, lipids, and carbohydrates and other compounds. The profile of esterified FA, as well as FA-containing polar lipids at the class and species levels were also significantly different. The FR samples showed about three-fold higher amount of n-3 polyunsaturated FA, while PT samples showed two-fold higher content of monounsaturated FA. Quantification of glycolipids and phospholipids revealed, respectively, two-fold and three-fold higher levels in PT samples. Despite the differences found, the polar lipids identified in both batches included some lipid species with recognized bioactivity, valuing Ulva biomass with functional properties, increasing their added value, and promoting new applications, namely in nutraceutical and food markets.

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Section: Discussionsupporting

confidence: 89%

Section: Discussioncontrasting

confidence: 57%

Polar Lipids of Commercial Ulva spp. of Different Origins: Profiling and Relevance for Seaweed Valorization

Moreira

Costa

Melo

et al. 2021

Foods

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“…Data acquisition was performed using the Xcalibur data system (V3.3, Thermo Fisher Scientific, Waltham, MA, USA). Peak integration and HPLC–MS data assignments were performed using MZmine 2.42 and the predefined parameters for data processing, as described in similar approaches published by the Marine Lipidomics Group [ 30 ]. Lipid identification was performed by matching the LC retention time (shown in the total ion chromatograms, Supplementary Materials, Figure S1 ), with the assignment of the molecular ions observed in the LC–MS spectra ( Figures S2–S8 ), with an accuracy of mass measurements < 5 ppm ( Table 2 , Table 3 and Table 4 ).…”

Section: Methodsmentioning

confidence: 99%

“…So far, classical chromatographic-based approaches followed by off-line gas chromatography–mass spectrometry (GC–MS) analysis of FAs have been performed to tentatively identify the glycolipids and phospholipids classes on G. turuturu [ 16 , 19 , 26 ], but its polar lipidome at the molecular level has not yet been determined. This characterization is currently achieved by using high-resolution mass spectrometry (MS)-based lipidomic approaches coupled to liquid chromatography (LC), as already described for other red seaweeds [ 27 , 28 , 29 , 30 ]. The use of this omics approach makes it possible to identify not only PUFA carriers but also certain molecules with intrinsic bioactive properties.…”

Section: Introductionmentioning

confidence: 99%

Polar Lipids Composition, Antioxidant and Anti-Inflammatory Activities of the Atlantic Red Seaweed Grateloupia turuturu

et al. 2021

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Grateloupia turuturu Yamada, 1941, is a red seaweed widely used for food in Japan and Korea which was recorded on the Atlantic Coast of Europe about twenty years ago. This seaweed presents eicosapentaenoic acid (EPA) and other polyunsaturated fatty acids (PUFAs) in its lipid fraction, a feature that sparked the interest on its potential applications. In seaweeds, PUFAs are mostly esterified to polar lipids, emerging as healthy phytochemicals. However, to date, these biomolecules are still unknown for G. turuturu. The present work aimed to identify the polar lipid profile of G. turuturu, using modern lipidomics approaches based on high performance liquid chromatography coupled to high resolution mass spectrometry (LC–MS) and gas chromatography coupled to mass spectrometry (GC–MS). The health benefits of polar lipids were identified by health lipid indices and the assessment of antioxidant and anti-inflammatory activities. The polar lipids profile identified from G. turuturu included 205 lipid species distributed over glycolipids, phospholipids, betaine lipids and phosphosphingolipids, which featured a high number of lipid species with EPA and PUFAs. The nutritional value of G. turuturu has been shown by its protein content, fatty acyl composition and health lipid indices, thus confirming G. turuturu as an alternative source of protein and lipids. Some of the lipid species assigned were associated to biological activity, as polar lipid extracts showed antioxidant activity evidenced by free radical scavenging potential for the 2,2′-azino-bis-3-ethyl benzothiazoline-6-sulfonic acid (ABTS●+) radical (IC50 ca. 130.4 μg mL−1) and for the 2,2-diphenyl-1-picrylhydrazyl (DPPH●) radical (IC25 ca. 129.1 μg mL−1) and anti-inflammatory activity by inhibition of the COX-2 enzyme (IC50 ca. 33 µg mL−1). Both antioxidant and anti-inflammatory activities were detected using a low concentration of extracts. This integrative approach contributes to increase the knowledge of G. turuturu as a species capable of providing nutrients and bioactive molecules with potential applications in the nutraceutical, pharmaceutical and cosmeceutical industries.

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“…Each seaweed species has specific nutritional and functional characteristics [10,13,[29][30][31]. Seaweed blends, resulting from the mixture of two or more species, allow to obtain in a single product better nutritional, health and functional characteristics, not possible to obtain with a single seaweed.…”

Section: Introductionmentioning

confidence: 99%

Seaweed Blends as a Valuable Source of Polyunsaturated and Healthy Fats for Nutritional and Food Applications

et al. 2021

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Seaweeds are considered healthy and sustainable food. Although their consumption is modest in Western countries, the demand for seaweed in food markets is increasing in Europe. Each seaweed species has unique nutritional and functional features. The preparation of blends, obtained by mixing several seaweeds species, allows the obtaining of maximum benefits and ingredients with single characteristics. In this work, five seaweed blends, commercially available and produced under organic conditions in Europe, were characterized. The proximal composition included contents of ash (20.28–28.68% DW), proteins (17.79–26.61% DW), lipids (0.55–1.50% DW), and total carbohydrates (39.47–47.37% DW). Fatty acid profiles were determined by gas chromatography–mass spectrometry (GC–MS), allowing quantification of healthy fatty acids, namely n-3 and n-6 polyunsaturated fatty acids (PUFA), and calculation of lipid quality indices. Each blend showed a characteristic PUFA content in the lipid pool (35.77–49.43% of total fatty acids) and the content in essential and healthy n-3 PUFA is highlighted. The atherogenicity (0.54–0.72) and thrombogenicity (0.23–0.45) indices evidenced a good nutritional value of lipid fractions. As nutritional and environmentally attractive products, the consumption of the studied seaweed blends can contribute to a healthy lifestyle.

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Insights of species-specific polar lipidome signatures of seaweeds fostering their valorization in the blue bioeconomy

Cited by 22 publications

References 69 publications

Polar Lipids of Commercial Ulva spp. of Different Origins: Profiling and Relevance for Seaweed Valorization

Polar Lipids of Commercial Ulva spp. of Different Origins: Profiling and Relevance for Seaweed Valorization

Polar Lipids Composition, Antioxidant and Anti-Inflammatory Activities of the Atlantic Red Seaweed Grateloupia turuturu

Seaweed Blends as a Valuable Source of Polyunsaturated and Healthy Fats for Nutritional and Food Applications

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