Extraction, purification, physicochemical properties and antioxidant activity of a new polysaccharide from Ocimum album L. seed

Arab, K.; Ghanbarzadeh, Babak; Ayaseh, Ali; Jahanbin, Kambiz

doi:10.1016/j.ijbiomac.2021.03.088

Cited by 68 publications

(31 citation statements)

References 72 publications

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“…X‐ray diffraction (XRD) and scanning electron microscope (SEM) were used as effective methods to analyse the crystal structures of polymers, and they were widely employed in the structural characterisation of polysaccharides (Arab et al ., 2021; Deore & Mahajan., 2021). Figure S2a showed the XRD patterns of XYCS‐P and XYCS.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of a novel phosphorylated corn straw xylan for enhancement of thermal stability, crystallinity and functional activity

Qian¹,

Yu²,

et al. 2021

Int J of Food Sci Tech

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The present study focussed on a novel phosphorylated corn straw xylans (XYCS-P) that had excellent thermal stability, crystallinity and functional activity and could be potentially used as functional agents in food products. In this work, the phosphorylated derivative XYCS-P was successfully prepared, and the chemical characterisation, spectral analysis, thermal analysis, morphology analysis, antioxidant capacity and anticancer activity were evaluated. The results indicated that XYCS-P possessed superior thermal stability to the native corn straw xylans (XYCS) when exposed to the high temperature (above 240 °C). In addition, the crystallinity of XYCS-P was better than that of XYCS. Moreover, for XYCS-P, the scavenging activity of the hydroxyl radical, (1,1-diphenyl-2-picrylhydrazyl) DPPH radical, superoxide anion radical and the ferric ion reducing antioxidant power were significantly stronger than that of XYCS (P < 0.01). Besides, XYCS-P exhibited a remarkable inhibition effect for HepG2 cells, and the IC 50 value of XYCS-P was determined to be 335.91 μg mL −1 (P < 0.05).

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Section: Resultsmentioning

confidence: 99%

Evaluation of a novel phosphorylated corn straw xylan for enhancement of thermal stability, crystallinity and functional activity

Qian¹,

Yu²,

et al. 2021

Int J of Food Sci Tech

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“…The anomeric resonances for the anomeric carbons appear at δ 90 to 110 ppm, whereas those for the ring carbons are found between 60 and 85 ppm. Specifically, the chemical shifts between 95 and 101 ppm were due to α-linked residue and the chemical shifts in the region of 101-105 ppm were attributed to the β-linked residue [32]. As shown in Figure 3d, the signals at 97.81 and 104.27 ppm were attributed to the anomeric region of the αand β-configuration, respectively.…”

Section: Nmr Analysismentioning

confidence: 92%

“…Most polysaccharides have an amorphous or semi-crystalline structure. Since intermolecular bonds are weaker in amorphous regions rather than in crystalline regions, the solubility and water uptake are higher in the amorphous polysaccharides [32]. It can be seen from the Figure 3e that there were five diffraction peaks (27.36, 31.58, 45.31, 56.33, 66.17) and the corresponding crystal plane spacings were 3.26, 2.83, 2.00, 1.63, and 1.41 Å.…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

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Physicochemical Characterization of an Exopolysaccharide Produced by Lipomyces sp. and Investigation of Rheological and Interfacial Behavior

Guo

Chen

et al. 2021

Gels

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The present study aimed to evaluate the rheological and interfacial behaviors of a novel microbial exopolysaccharide fermented by L. starkeyi (LSEP). The structure of LSEP was measured by LC-MS, 1H and 13C NMR spectra, and FT-IR. Results showed that the monosaccharide composition of LSEP was D-mannose (8.53%), D-glucose (79.25%), D-galactose (7.15%), and L-arabinose (5.07%); there existed the anomeric proton of α-configuration and the anomeric carbon of α- and β-configuration; there appeared the characteristic absorption peak of the phosphate ester bond. The molecular weight of LSEP was 401.8 kDa. The water holding capacity (WHC, 2.10 g/g) and oil holding capacity (OHC, 12.89 g/g) were also evaluated. The results of rheological properties showed that the aqueous solution of LSEP was a non-Newtonian fluid, exhibiting the shear-thinning characteristics. The adsorption of LSEP can reduce the interfacial tension (11.64 mN/m) well and form an elastic interface layer at the MCT–water interface. Such functional properties make LSEP a good candidate for use as thickener, gelling agent, and emulsifier to form long-term emulsions for food, pharmaceutical, and cosmetic products.

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“…The FT-IR spectrum of TsLTP (Figure 2A) indicated that the broad and strong band at 3397 cm À 1 represented the OÀ H stretching vibration, [18] while the weak band at 2921 cm À 1 was attributed to CÀ H stretching vibration. The absorption peak at approximately 1638 cm À 1 was due to the bound water, [19][20] while the band at around 1402 cm À 1 was assigned to CÀ H bending vibration. [21] In the range of 1200-1000 cm À 1 , the strong and broad absorption peak at 1064 cm À 1 was ascribed to CÀ O stretching vibrations of the pyranose ring.…”

Section: Ft-ir Spectrum Analysismentioning

confidence: 99%

Structural Characterization and Tumor Microvascular Inhibition Activity of Total Polysaccharide from Trametes sanguinea Lloyd

Yan

Zhang

Zhu

et al. 2022

Chemistry & Biodiversity

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Extraction, purification, physicochemical properties and antioxidant activity of a new polysaccharide from Ocimum album L. seed

Cited by 68 publications

References 72 publications

Evaluation of a novel phosphorylated corn straw xylan for enhancement of thermal stability, crystallinity and functional activity

Evaluation of a novel phosphorylated corn straw xylan for enhancement of thermal stability, crystallinity and functional activity

Physicochemical Characterization of an Exopolysaccharide Produced by Lipomyces sp. and Investigation of Rheological and Interfacial Behavior

Structural Characterization and Tumor Microvascular Inhibition Activity of Total Polysaccharide from Trametes sanguinea Lloyd

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