Physicochemical properties of extrusion-modified konjac glucomannan

Tatirat, Orawan; Charoenrein, Sanguansri; Kerr, William L.

doi:10.1016/j.carbpol.2011.09.052

Cited by 38 publications

(25 citation statements)

References 25 publications

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“…The solubility of CMKGM (degree of substitution = 0.6, sample solution = 25% (w/w)) was 11.70 ± 0.36 g dry basis in water solution/100 mL water (Xia et al, 2010). The water absorption of KGM (92.6% purity, M w = 1.2 × 10 6 Da, sample solution = 0.5% (w/w)) was 153.64 ± 4.70 g water/g dry basis (Tatirat, Charoenrein, & Kerr, 2012). Water absorbency of KGM (sample solution = 0.33% (w/w)) was 105.4 and 100 g water/g dry sample.…”

Section: Sample Amentioning

confidence: 99%

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Carboxymethyl modification of konjac glucomannan affects water binding properties

Xiao

Dai

Wang

et al. 2015

Carbohydrate Polymers

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Section: Sample Amentioning

confidence: 99%

“…a Sample solution = 0.4% (w/w). total dry basis (Tatirat, Charoenrein, & Kerr, 2012). The solubility of KGM (M w = 7.47 × 10 5 g mol −1 , sample solution = 0.4% (w/w)) was 0.829 ± 0.00185 g dry basis in water solution/g total sample (Chen et al, 2011).…”

Section: Sample Amentioning

confidence: 99%

Carboxymethyl modification of konjac glucomannan affects water binding properties

Xiao

Dai

Wang

et al. 2015

Carbohydrate Polymers

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“…The degree of branching of the polysaccharide chain is approximately 8%. Moreover, native glucomannan exhibits a slight degree of acetylation (DS) from 0.05 to 0.1 (1 in 12 or 18 sugar units) [51,53,54]. The chain acetylation affects its solubility.…”

Section: Non-starch Polysaccharidesmentioning

confidence: 99%

“…Another production method comprises the dissolution of gum arabic in water at low temperatures, so that its denaturation would not occur, and then, the obtained solution is subjected to decantation or filtration. Afterwards, it is subjected to pasteurisation and in the last stage, the mixture is subjected to drying [53,61]. The structure of the gum arabic is rather complex.…”

Section: Non-starch Polysaccharidesmentioning

confidence: 99%

Osmotic Properties of Polysaccharides Solutions

Kruk¹,

Pancerz²,

Ptaszek³

2017

Solubility of Polysaccharides

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Osmotic properties of polysaccharides' solutions and associated biopolymer-solvent and biopolymer-biopolymer type interaction are very important from a technological point of view. The knowledge of osmotic properties of these systems provides the basis to appropriate use of polysaccharides having comply with the relevant technology functions, impart the appropriate texture and forming the sensory properties of the final product. Furthermore, an important issue is the effect of time on the osmotic properties of polysaccharides', because with time, the aforementioned effects may change. Membrane osmometry is one of the methods used in the studies of synthetic polymers to determine their average molecular mass and the degree of interaction between a polymer and a solvent. This method is successfully applied in the case of biopolymers that include polysaccharides. The existence of the osmotic pressure, formed by diffusion of solvent molecules through a semi-permeable membrane, is the basis of this method. Analysis and interpretation of osmometric research results is based on the van't Hoff equation dependency of the concentration. The second virial coefficient obtained based on this relation allows characterisation of biopolymer-solvent interactions, and thus biopolymer tendency to solvation. The third virial coefficient provides information on mutual interactions between the biopolymer molecules, as well as its tendency to aggregate.

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“…Moreover, KGM is renewable and biodegradable natural polysaccharides, in which there are a large number of hydrophilic groups. The hydrophilicity of these groups makes KGM a better raw material for super absorbency [10,11]. Diatomite (DT) or diatomaceous earth which consists of a wide variety of shaped and sized diatoms, typically 10-200 mm, in a structure containing up to 80-90% voids, is a kind of soft, pale-colored, lightweight sedimentary rock which is principally composed of the silica microfossils of aquatic unicellular algae [12,13].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of konjac glucomannan-acrylic acid-diatomite composites

Chen

Zhang

2015

Polym. Compos.

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A novel konjac glucomannan (KGM)‐acrylic acid‐diatomite composite (KGAD) was synthesized by the solution polymerization of partially neutralized acrylic acid (AA) on to KGM and diatomite (DT), using potassium persulfate as a free radical initiator, in the presence of Trimethylolpropane Trimethacrylate (TPTA) as a crosslinking agent. The structure and morphology of KGAD were characterized by using FT‐infrared, X‐ray diffraction, scanning electron microscopy. Besides, the thermal stability as well as the salt absorption of the composites was investigated by the thermogravimetric analysis and the swelling rate test, respectively. The results showed that the interactions between KGM‐AA (KGA0) and DT could be generated through hydrogen bond formation. Besides, the crystal of composites became rules and grew well with the addition of DT. It was also found that the appropriate amount of DT could be dispersed uniformly with a single crystal state in the matrix of KGA0 while excessive DT caused aggregation, inducing an irregular distribution in the matrix. In addition, the thermal stability of KGAD was improved based on the introduction of DT into the polymer network. POLYM. COMPOS., 37:3384–3390, 2016. © 2015 Society of Plastics Engineers

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Physicochemical properties of extrusion-modified konjac glucomannan

Cited by 38 publications

References 25 publications

Carboxymethyl modification of konjac glucomannan affects water binding properties

Carboxymethyl modification of konjac glucomannan affects water binding properties

Osmotic Properties of Polysaccharides Solutions

Preparation and characterization of konjac glucomannan-acrylic acid-diatomite composites

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