Seed Gums

Dierckx, Stephan; Dewettinck, Koen

doi:10.1002/3527600035.bpol6011

Cited by 3 publications

(3 citation statements)

References 30 publications

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“…The helix conformation, assumed by the GG chains in the presence of borax [3], was tested to be stable even at high pH values by means of Congo Red complexation experiments. The chosen polysaccharide, GG, is a water-soluble galactomannan which consists of a linear β -D-(1,4)-mannose backbone irregularly substituted by uncharged α -D-(1,6)-linked galactose side groups [4]. This seed gum, generally recognised as safe (GRAS), because of its gelling, viscosifying, and thickening properties is used in pharmaceutics [5] for the stabilization of emulsions and suspensions; it is also employed in tablet manufacturing as a binder and disintegrating agent and for drug micr-encapsulation.…”

Section: Introductionmentioning

confidence: 99%

Sonication-Based Improvement of the Physicochemical Properties of Guar Gum as a Potential Substrate for Modified Drug Delivery Systems

Ansari

Matricardi

Cencetti

et al. 2013

BioMed Research International

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Guar Gum is a natural polysaccharide that, due to its physicochemical properties, is extensively investigated for biomedical applications as a matrix for modified drug delivery, but it is also used in the food industry as well as in cosmetics. A commercial sample of Guar Gum was sonicated for different periods of time, and the reduction in the average molecular weight was monitored by means of viscometric measurements. At the same time, the rheological behaviour was also followed, in terms of viscoelasticity range, flow curves, and mechanical spectra. Sonicated samples were used for the preparation of gels in the presence of borate ions. The effect of borax on the new samples was investigated by recording mechanical spectra, flow curves, and visible absorption spectra of complexes with Congo Red. The anisotropic elongation, observed in previous studies with tablets of Guar Gum and borax, was remarkably reduced when the sonicated samples were used for the preparation of the gels.

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Section: Introductionmentioning

confidence: 99%

Sonication-Based Improvement of the Physicochemical Properties of Guar Gum as a Potential Substrate for Modified Drug Delivery Systems

Ansari

Matricardi

Cencetti

et al. 2013

BioMed Research International

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“…Mannans can also be extracted from beans or seeds giving gums appreciated in food industry (e.g. guar gum, tara gum, carob gum; [8]). In gums, mannan chains are decorated by carbohydrate components such as galactopyranoside residues in galactomannan gums, or by non-carbohydrate groups (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…acetate, sulfate) depending on the botanical origin of the macromolecules. Galactomannan seed gums are already exploited as stabilizer and thickener in the food and cosmetic industries [1,8]. However, despite their abundance in plant cell wall mannans are under-exploited and their valorization would be key towards sustainable biorefineries.…”

Section: Introductionmentioning

confidence: 99%

Functional exploration of the glycoside hydrolase family GH113

et al. 2022

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β-Mannans are a heterogeneous group of polysaccharides with a common main chain of β-1,4-linked mannopyranoside residues. The cleavage of β-mannan chains is catalyzed by glycoside hydrolases called β-mannanases. In the CAZy database, β-mannanases are grouped by sequence similarity in families GH5, GH26, GH113 and GH134. Family GH113 has been under-explored so far with six enzymes characterized, all from the Firmicutes phylum. We undertook the functional characterization of 14 enzymes from a selection of 31 covering the diversity of the family GH113. Our observations suggest that GH113 is a family with specificity towards mannans, with variations in the product profiles and modes of action. We were able to assign mannanase and mannosidase activities to four out of the five clades of the family, increasing by 200% the number of characterized GH113 members, and expanding the toolbox for fine-tuning of mannooligosaccharides.

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Gums and Related Polysaccharides

BeMiller

2008

Glycoscience

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Seed Gums

Abstract: Introduction Historical Outline Chemical Structures Occurrence Introduction Carob Bean Guar Tara Gum Functions Biochemistry Biodegradation … Show more

Cited by 3 publications

References 30 publications

Sonication-Based Improvement of the Physicochemical Properties of Guar Gum as a Potential Substrate for Modified Drug Delivery Systems

Sonication-Based Improvement of the Physicochemical Properties of Guar Gum as a Potential Substrate for Modified Drug Delivery Systems

Functional exploration of the glycoside hydrolase family GH113

Gums and Related Polysaccharides

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