Retrieving of high-value biomolecules from edible Himanthalia elongata brown seaweed using hydrothermal processing

Cernadas, Héctor; Flórez‐Fernández, Noelia; González‐Muñoz, María Jesús; Domı́nguez, Herminia; Torres, M.D.

doi:10.1016/j.fbp.2019.07.015

Cited by 31 publications

(27 citation statements)

References 47 publications

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“…By analyzing the composition of H. elongata used here as raw material and reported in a previous work of these authors [ 22 ], it becomes evident that this edible alga is in consonance with others works where similar results were obtained [ 23 , 24 ]. Nevertheless, differences could be due to collection season, geographical location and abiotic factors [ 25 ].…”

Section: Resultssupporting

confidence: 87%

“…One of the components of the brown seaweed is fucoidan, which is associated with different biological activities. Previous work by the authors of this study was focused on the extraction of this polysaccharide as well as assessment of its antioxidant and the cytotoxicity activities [ 22 ]. Furthermore, the behavior of the calcium alginate from the liquid phase of subcritical water extraction obtained at 160 °C was studied.…”

Section: Resultsmentioning

confidence: 99%

“…The lowest cell viability was shown for the extract obtained at 160 °C using a concentration of 25 µg/mL with a value of approximately 44%. In the previous work [ 22 ], lung (NCI-H460), ovarian (A2780) and breast (MCF-7) cell lines were assessed at 160 °C and 220 °C, the temperatures selected based on the maximum sulfate and phlorotannins content, respectively. It was reported that the cell inhibition was higher for lung and breast cell lines for the extract obtained at 220 °C.…”

Section: Resultsmentioning

confidence: 99%

“…It was reported that the cell inhibition was higher for lung and breast cell lines for the extract obtained at 220 °C. For the ovarian cell line, a slight increase of the inhibition was observed for the extract obtained at 160 °C [ 22 ]. Taking into account the new data obtained in the present work, the observed behaviors could be partially explained by the fucose:sulfate ratio.…”

Section: Resultsmentioning

confidence: 99%

“…The retrieving of high-value biomolecules from H. elongata using subcritical water extraction was previously proposed [ 22 ], but the influence of the process on the sodium alginate fraction was not assessed. The current work is focused on the structural and rheological characterization of sodium alginate obtained from this edible brown seaweed after subcritical water and acetone fractionation, and provides further insight on the biological potential of the recovered soluble extracts.…”

Section: Introductionmentioning

confidence: 99%

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Functional Features of Alginates Recovered from Himanthalia elongata Using Subcritical Water Extraction

2021

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Subcritical water extraction of Himanthalia elongata and the subsequent acetone fractionation to precipitate crude fucoidans generated a liquid phase which was used to recover alginates with a wide range of viscoelastic features and other soluble extracts with potential biological activities. The precipitated alginate was converted to sodium alginate using an environmentally friendly treatment before being characterized by Fourier transform infrared attenuated total reflectance, nuclear magnetic resonance, high performance size exclusion chromatography and rheological measurements. The cell viability of three human cell lines (A549, HCT-116, T98G) in the presence of the extracts obtained before and after acetone fractionation was assessed. Fractionation with different acetone volumes showed a slight effect in the behavior of the different tested cell lines. Results also indicated a notable effect of the processing conditions on the block structure and molar mass of the extracted biopolymer, with the subsequent impact on the rheological properties of the corresponding gelled matrices.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Functional Features of Alginates Recovered from Himanthalia elongata Using Subcritical Water Extraction

2021

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Current status and trends in extraction of bioactives from brown macroalgae using supercritical CO₂ and subcritical water

Gan

Baroutian

2022

J of Chemical Tech & Biotech

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Bioactive compounds from brown seaweeds, such as polysaccharides, phenolics and pigments, have shown a range of health‐promoting properties that can be implemented in products like functional foods, cosmetics and medicine. Extraction is therefore crucial in recovering these bioactive compounds, but conventional methods today need to be more sustainable and efficient. In this review, the extraction of brown seaweeds using supercritical carbon dioxide (SCCO2) and subcritical water (SCW) is discussed comprehensively. Previous studies have shown that these two extraction technologies enhance the overall extraction yield of brown seaweed bioactive compounds when process parameters are optimised. These technologies have also been combined, either together or with other extraction methods, to improve overall extraction yield. Although this review shows the research progress of these technologies for brown seaweeds, scale‐up operations are still challenging owing to a variety of factors. Further research should focus on optimisation such that scale‐up is less difficult. With the knowledge presented in this review and with further work, these eco‐friendly extraction technologies could be commercialised within the seaweed industry. © 2022 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

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Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2019–2020

Harvey

2023

Mass Spectrometry Reviews

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This review is the tenth update of the original article published in 1999 on the application of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2020. Also included are papers that describe methods appropriate to analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. The review is basically divided into three sections: (1) general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, quantification and the use of arrays. (2) Applications to various structural types such as oligo‐ and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals, and (3) other areas such as medicine, industrial processes and glycan synthesis where MALDI is extensively used. Much of the material relating to applications is presented in tabular form. The reported work shows increasing use of incorporation of new techniques such as ion mobility and the enormous impact that MALDI imaging is having. MALDI, although invented nearly 40 years ago is still an ideal technique for carbohydrate analysis and advancements in the technique and range of applications show little sign of diminishing.

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Retrieving of high-value biomolecules from edible Himanthalia elongata brown seaweed using hydrothermal processing

Cited by 31 publications

References 47 publications

Functional Features of Alginates Recovered from Himanthalia elongata Using Subcritical Water Extraction

Functional Features of Alginates Recovered from Himanthalia elongata Using Subcritical Water Extraction

Current status and trends in extraction of bioactives from brown macroalgae using supercritical CO₂ and subcritical water

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2019–2020

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Retrieving of high-value biomolecules from edible Himanthalia elongata brown seaweed using hydrothermal processing

Cited by 31 publications

References 47 publications

Functional Features of Alginates Recovered from Himanthalia elongata Using Subcritical Water Extraction

Functional Features of Alginates Recovered from Himanthalia elongata Using Subcritical Water Extraction

Current status and trends in extraction of bioactives from brown macroalgae using supercritical CO2 and subcritical water

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2019–2020

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Current status and trends in extraction of bioactives from brown macroalgae using supercritical CO₂ and subcritical water