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Na, K.; Lee, K.-Y.

doi:10.1023/a:1018429719189

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Differences among samples could be observed in this stage. The results showed that SSP-1, with a higher Man/Gal ratio, had a high decomposition temperature, which was consistent with the literature ( 45 ). Na and Lee showed that high mannose content resulted in the greater binding energy of the polysaccharide chains.…”

Section: Resultssupporting

confidence: 92%

Structural Characterization of Polysaccharides in Waste Liquor Produced by Wet Decortication of Sesame Seeds

Zhang

et al. 2022

Front. Nutr.

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The wet decortication of sesame seeds produces wastewater containing diverse minerals and organic pollutants that could be valuable resources for the food industry. This investigation aimed to reclaim, purify, and characterize the polysaccharides contained in the waste liquor from the sesame decortication industry. The purified polysaccharide fractions were characterized using monosaccharide analysis, GPC (high-performance gel permeation chromatography), FT-IR (Fourier-transform infrared) spectroscopy, methylation analysis, 1D and 2D Nucleai Magnetic Resonance (NMR) analysis, and thermal analysis. Four fractions were found (SSP-1,-2,-3, -4), of which SSP-2 was proportionately the largest and most interesting. The backbone of SSP-2 is mainly composed of (1→2,4)-β-D-Xylp residues with side chains connected to the O-4 position, with many T-β-D-Galp and (1→5)-α-L-Araf residues, and fewer (1→4)-α-D-Glcp, (1→2)-α-L-Rhap, T-α-L-Araf, and (1→2)-β-D-GlcpA residues. An efficient method for removing the polysaccharides would simplify wastewater treatment while finding a use for them would benefit the sesame, food, and pharmaceutical industries.

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Section: Resultssupporting

confidence: 92%

Structural Characterization of Polysaccharides in Waste Liquor Produced by Wet Decortication of Sesame Seeds

Zhang

et al. 2022

Front. Nutr.

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Structural and thermal characterization of galactomannans from non-conventional sources

Cerqueira

Souza

Simões

et al. 2011

Carbohydrate Polymers

224

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a b s t r a c tGalactomannans of Gleditsia triacanthos, Caesalpinia pulcherrima and Adenanthera pavonina were structurally and thermally characterized. Methylation analyses confirmed that these three galactomannans are composed by a 4-linked mannose polymer with galactose side chains attached at the C6 position. G. triacanthos galactomannan had an estimated average degree of polymerization of 224 mannose residues, with a degree of branching of 0.24, C. pulcherrima galactomannan had a degree of polymerization of 252 and a degree of branching of 0.30, and A. pavonina galactomannan had a degree of polymerization of 475 and a degree of branching of 0.60. Enzymatic hydrolysis with endo-␤-mannanase and the subsequent analyses of the low molecular weight fraction by ESI-MS/MS indicated the presence of characteristic structural features of galactomannans. Furthermore, acetyl and pentosyl residues were detected in the galactomannan of G. triacanthos and analyses of higher molecular weight fractions from G. triacanthos were performed, confirming that presence. Differential scanning calorimetry (DSC) showed the presence of two peaks related with water loss, confirmed by thermogravimetric analysis (TGA). The different compositions of galactomannans with different mannose content and different molecular weights influence their thermal behaviour. A higher content of mannose lead to higher values of the enthalpy change (first thermal transition) and glass transition temperature (T g ), while the enthalpy change of the second thermal transition was influenced by the viscosity average molecular weight (Mv) of the samples.This work provides understanding of structural and thermal properties of three galactomannans from non-conventional sources, thus contributing to a better insight on their possible food, pharmaceutical or biomedical applications.

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Isolation and physicochemical characterization of soluble scleroglucan from Sclerotium rolfsii. Rheological properties, molecular weight and conformational characteristics

Fariña

Siñeríz

Molina

et al. 2001

Carbohydrate Polymers

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Untitled

Cited by 3 publications

References 4 publications

Structural Characterization of Polysaccharides in Waste Liquor Produced by Wet Decortication of Sesame Seeds

Structural Characterization of Polysaccharides in Waste Liquor Produced by Wet Decortication of Sesame Seeds

Structural and thermal characterization of galactomannans from non-conventional sources

Isolation and physicochemical characterization of soluble scleroglucan from Sclerotium rolfsii. Rheological properties, molecular weight and conformational characteristics

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