Bioactive potential and structural characterization of sulfated polysaccharides from Bullet tuna (Auxis Rochei) by-products

Jridi, Mourad; Mezhoudi, Maram; Abdelhedi, Ola; Boughriba, Soumaya; Elfalleh, Walid; Souissi, Nabil; Nasri, Rim

doi:10.1016/j.carbpol.2018.04.038

Cited by 20 publications

(21 citation statements)

References 34 publications

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“…Specic uronic acid bands were observed between 1383.5 cm À1 and 1470 cm À1 . 39 Similar spectra have been reported for the sulfated polysaccharides extracted from different marine sources such as abalone (Haliotis discus hannai Ino) gonad, 40 bullet tuna (Auxis rochei) by-products 41 and Asian clam (Corbicula uminea). 8…”

Section: Ftir Spectroscopy Analysissupporting

confidence: 68%

Extraction, structural characterization, and thermal and biomedical properties of sulfated polysaccharides from razor clamSolen marginatus

et al. 2019

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Section: Ftir Spectroscopy Analysissupporting

confidence: 68%

Extraction, structural characterization, and thermal and biomedical properties of sulfated polysaccharides from razor clamSolen marginatus

et al. 2019

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“…These results showed that RGP−1−A treatment was more effective in blocking the increase in caspase-3 activity induced by H 2 O 2 , thereby inhibiting subsequent apoptosis signals. In line with this, chestnut shell polysaccharides, which are acidic polysaccharides, have been shown to reduce the H 2 O 2 -induced increase in caspase-3 and apoptosis [ 29 ]. Our findings showed that RGP pretreatment can attenuate the H 2 O 2 -induced production of ROS and then block caspase-3 expression and protect cells.…”

Section: Resultsmentioning

confidence: 89%

“…Overall, RGP−1−A showed the better antioxidant properties between the two polysaccharides. Liu et al showed that chestnut shell polysaccharides containing a sulfate group can significantly attenuate the reduction in Nrf2 mRNA expression in liver cells caused by H 2 O 2 injury [ 29 ]. Acidic-hydrogenated corn silk polysaccharides have been found to protect IEC-6 cells from H 2 O 2 damage by increasing the expression of Nrf2 and HO-1 or reducing that of Keap1 [ 57 ].…”

Section: Resultsmentioning

confidence: 99%

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Structural Characteristics of Rehmannia glutinosa Polysaccharides Treated Using Different Decolorization Processes and Their Antioxidant Effects in Intestinal Epithelial Cells

Ren

Gao

et al. 2022

Foods

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Polysaccharide decolorization is a key determinant of polysaccharide structure. In this study, two purified Rehmannia glutinosa polysaccharides, RGP−1−A and RGP−2−A, were obtained after decolorization using the AB-8 macroporous resin and H2O2, respectively. RGP−1−A (molecular weight (Mw) = 18,964 Da) and RGP−2−A (Mw = 3305 Da) were acidic and neutral heteropolysaccharides, respectively, and were both polycrystalline in structure. FTIR analysis revealed that RGP−1−A was a sulfate polysaccharide, while RGP−2−A had no sulfate group. Experiments on IPEC-1 cells showed that RGPs alleviated oxidative stress by regulating the Nrf2/Keap1 pathway. These findings were confirmed by the upregulation of Nrf2, NQO1, and HO-1; the subsequent increase in the levels of antioxidant indicators (SOD, LDH, CAT, and MDA); and the restoration of mitochondrial membrane potential. Overall, the antioxidant capacity of RGP−1−A was significantly higher than that of RGP−2−A. These results suggest that RGPs may be a potential natural antioxidant and could be developed into functional foods.

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“…Finally, the tubes were placed in a water bath at room temperature. The absorbance was measured at 470 nm [ 20 ]. Butylated hydroxyanisole (BHA) was used as positive control.…”

Section: Experimental Partmentioning

confidence: 99%

Antioxidant Activity and Biocompatibility of Fructo-Polysaccharides Extracted from a Wild Species of Ornithogalum from Lebanon

et al. 2021

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The present study aims to investigate the properties of biopolymers extracted from a Lebanese onion non edible plant. The extraction was performed under mild conditions by varying the percentage of ultra-sound (US) treatment duration to a total extraction time of 30 min (0, 50, 100% US). The extracts were characterized using FTIR, SEC, GC-MS, TGA, and DSC analyses. The composition of the extracts was determined from the total carbohydrate content and protein content measurements. The thermal analyses indicate that all samples have high thermal stability. The antioxidant activities of the extracts were investigated, using β-carotene bleaching, scavenging activity of ABTS, metal chelating ability, and total antioxidant activity tests. The results indicate that the 50% US treatment leads to the best antioxidant activity. Biocompatibility of the extracts was evaluated using hemolysis and cytotoxicity assays. The results showed that 0 and 50% US samples are not toxic to human cells, in contrary to 100% US.

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Bioactive potential and structural characterization of sulfated polysaccharides from Bullet tuna (Auxis Rochei) by-products

Cited by 20 publications

References 34 publications

Extraction, structural characterization, and thermal and biomedical properties of sulfated polysaccharides from razor clamSolen marginatus

Extraction, structural characterization, and thermal and biomedical properties of sulfated polysaccharides from razor clamSolen marginatus

Structural Characteristics of Rehmannia glutinosa Polysaccharides Treated Using Different Decolorization Processes and Their Antioxidant Effects in Intestinal Epithelial Cells

Antioxidant Activity and Biocompatibility of Fructo-Polysaccharides Extracted from a Wild Species of Ornithogalum from Lebanon

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