Water soluble polysaccharides extracted from Pterocladia capillacea and Dictyopteris membranacea and their biological activities

Zeid, Aisha H. Abou; Aboutabl, E. A.; Sleem, Amany A.; El-Rafie, Hanaa M.

doi:10.1016/j.carbpol.2014.06.004

Cited by 56 publications

(24 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The extraction yield and the overall biochemical composition of JSP are detailed in Table 1. The extraction yield of JSP was around 4.55% (w/w) and close to those obtained by Zeid et al [35], Navarro et al [2], Maciel et al [36] and Chiovitti et al [37] for the extraction of galactans from the red seaweeds Pterocladia capillacea (6.46%), L. heterocladum (6.20%), Gracilaria birdiae (6.50%) and Sarconema filiforme (6.0%). This extraction yield was higher than those obtained from J. rubens (<1.4%), C. officinalis (0.3%) and B. orbigniana (0.25%) [3,18], but remained much lower than those obtained by Lajili et al [38], Fenoradosoa et al [16] and Chattopadhyay et al [39] for the red algae Laurencia obtusa (12.80%), Halymenia durvillei (~15-18%) and Grateloupia indica (13.0%).…”

Section: Extraction Yield and Biochemical Compositionsupporting

confidence: 87%

Structural Features and Rheological Properties of a Sulfated Xylogalactan-Rich Fraction Isolated from Tunisian Red Seaweed Jania adhaerens

et al. 2020

View full text Add to dashboard Cite

A novel sulfated xylogalactan-rich fraction (JSP for J. adhaerens Sulfated Polysaccharide) was extracted from the red Tunisian seaweed Jania adhaerens. JSP was purified using an alcoholic precipitation process and characterized by Attenuated Total Reflectance-Fourier-transform infrared spectroscopy (ATR-FTIR), high-pressure size exclusion chromatography (HPSEC) with a multi-angle laser light scattering (MALLS), gas chromatography coupled to mass spectrometry (GC-MS) and nuclear magnetic resonance spectroscopy (NMR, 1D and 2D). JSP was then evaluated regarding its physicochemical and rheological properties. Results showed that JSP was mainly composed of an agar-like xylogalactan sharing the general characteristics of corallinans. The structure of JSP was mainly composed of agaran disaccharidic repeating units (→3)-β-d-Galp-(1,4)-α-l-Galp-(1→) n and (→3)-β-d-Galp-(1,4)-3,6-α-l-AnGalp-(1→) n , mainly substituted on O-6 of (1,3)-β-d-Galp residues by β-xylosyl side chains, and less with sulfate or methoxy groups. (1,4)-α-l-Galp residues were also substituted by methoxy and/or sulfate groups in the O-2 and O-3 positions. Mass-average and number-average molecular masses (M w ) and (M n ), intrinsic viscosity ([η]) and hydrodynamic radius (R h ) for JSP were, respectively, 8.0 × 10 5 g/mol, 1.0 × 10 5 g/mol, 76 mL/g and 16.8 nm, showing a flexible random coil conformation in solution. The critical overlap concentration C* of JSP was evaluated at 7.5 g/L using the Williamson model. In the semi-diluted regime, JSP solutions displayed a shear-thinning behavior with a great viscoelasticity character influenced by temperature and monovalent salts. The flow characteristics of JSP were described by the Ostwald model. always belongs to the d-series, while the former (α-Gal) can occur as d-(carrageenans) or l-(agarans) series [4][5][6][7]. The main backbone can be substituted by pyruvic acid ketals, sulfate, O-glycosyl and/or methyl groups and also by side chains, giving rise to great structural changes along the galactan chain. These structural changes affect the physicochemical and rheological behaviors of these polymers. So far, it has been reported that sulfated galactans exhibit numerous biological properties, including antioxidant, anticoagulant, antinociceptive, immunomodulatory, anticancer, gastroprotective, anti-inflammatory, antithrombotic and antiproliferative [1,[6][7][8][9][10][11][12][13][14]. Marine seaweed (Phaeophyceae and Rhodophyceae) cell wall polysaccharides also hold great promise as a raw material for feed, food, and biofuel production. Through metabolic engineering, seaweeds (micro-and macroalgae) are attracting growing attention as an alternative source of biofuel by converting the seaweed biomass and, in particular, the cell wall, which is rich in carbohydrates, into liquid biofuels [15].Galactans are currently used as thickening, gelling, and stabilizing agents in food, cosmetic, and pharmaceutical fields [1,10-16]. However, sulfated galactans produced by Corallinales are less studied, probably because ...

show abstract

Section: Extraction Yield and Biochemical Compositionsupporting

confidence: 87%

Structural Features and Rheological Properties of a Sulfated Xylogalactan-Rich Fraction Isolated from Tunisian Red Seaweed Jania adhaerens

et al. 2020

View full text Add to dashboard Cite

show abstract

“…To the author's knowledge, only Abou Zeid, Aboutabl, Sleem, and El-Rafie (2014) reported water soluble polysaccharides extracted from brown alga Dictyopteris membranacea, which possess appreciable antimicrobial effect against S. aureus (inhibition of 43-57%) in comparison with ampicillin control using assay disc method. The yields in polysaccharide contents in these extracts were, however, weak between 2.9 and 6.5%, and were richer in galactose, glucose and arabinose (Abou Zeid et al, 2014). In our study, enzymatic hydrolysis using protease was performed in order to release bioactive algal peptides.…”

Section: Discussionmentioning

confidence: 88%

Characterization of antibacterial activity from protein hydrolysates of the macroalga Saccharina longicruris and identification of peptides implied in bioactivity

Beaulieu

Bondu

Doiron

et al. 2015

Journal of Functional Foods

105

View full text Add to dashboard Cite

“…Polysaccharides have garnered attention mainly attributed to their diverse biological activities, including antioxidant, antimicrobial, anticancer and anti-inflammatory activities (Abou Zeid, Aboutabl, Sleem, & El-Rafie, 2014;Facchini et al, 2014;Pakrokh Ghavi, 2015;Popov et al, 2014). In previous study, we revealed that purple sweet potato had 5.42% of water-soluble polysaccharides (Qu, Wu, & Jia, 2014).…”

Section: Introductionmentioning

confidence: 99%

Characterization, antioxidant and antitumor activities of polysaccharides from purple sweet potato

Jia

et al. 2015

Carbohydrate Polymers

135

View full text Add to dashboard Cite

Water soluble polysaccharides extracted from Pterocladia capillacea and Dictyopteris membranacea and their biological activities

Cited by 56 publications

References 23 publications

Structural Features and Rheological Properties of a Sulfated Xylogalactan-Rich Fraction Isolated from Tunisian Red Seaweed Jania adhaerens

Structural Features and Rheological Properties of a Sulfated Xylogalactan-Rich Fraction Isolated from Tunisian Red Seaweed Jania adhaerens

Characterization of antibacterial activity from protein hydrolysates of the macroalga Saccharina longicruris and identification of peptides implied in bioactivity

Characterization, antioxidant and antitumor activities of polysaccharides from purple sweet potato

Contact Info

Product

Resources

About