• Surface tension and refractive index of guar and ...

    2012-8-1  Surface tension and refractive index of guar gum (GG) (up to 0.97% w/w) and tragacanth gum (TG) (up to 1.41% w/w) aqueous dispersions were determined for systems with only one and both gums (mixtures) (up to 1.25% w/w). Experimental determinations were carried out from 5 to 30 °C for surface tension and from 10 °C to 40 °C for refractive index.

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  • refractive index of guar gum

    Refractive index of the extracted guar gum was determined according to , shows the refractive index of the four genotypes of guar gum to have the same value 13237 .... know more 3 Benefits of Guar Gum

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  • Surface tension and refractive index of guar and ...

    Surface tension and refractive index of guar gum (GG) (up to 0.97% w/w) and tragacanth gum (TG) (up to 1.41% w/w) aqueous dispersions were determined

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  • Surface tension and refractive index of guar and ...

    Abstract Surface tension and refractive index of guar gum (GG) (up to 0.97% w/w) and tragacanth gum (TG) (up to 1.41% w/w) aqueous dispersions were determined for systems with only one and both gums (mixtures) (up to 1.25% w/w). Experimental determinations were carried out from 5 to 30 °C for surface tension and from 10 °C to 40 °C for refractive index.

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  • Refractive Index Of Guar Gum - scholmanloodgieters.nl

    Refractive Index Of Guar Gum. FOB Reference Price:Get Latest Price. 2014621properties close to those of gum Arabic. Index Terms Physicochemical properties olibanum guar combretum gum. I. INTRODUCTION G ums are exudates from truck fruit or branches of

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  • An improved technique for concentration measurement

    Guar gum Concentration Refractive index abstract Galactomannans such as guar gum and locust bean gum are naturally occurring polysaccharides which have been widely used in various industries. One of the issues when dealing with these galactomannans is that they do not dissolve completely into water; therefore the actual dissolved concentration ...

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  • The effect of depolymerised guar gum on the stability

    2000-1-1  The refractive index increment was taken as 0.135 ml/g, as reported by Robinson, Ross-Murphy and Morris (1982). 4. Results and discussion4.1. Molar mass (distribution) and radius of gyration of (degraded) guar gum

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  • An improved technique for concentration

    2009-1-1  In this article, we present an easy and robust method for determining the concentration of galactomannan solutions by utilizing a Differential Refractive Index (DRI) detector. Calibration charts for guar gum and locust bean gum were constructed for the DRI method, with the accuracy of results being compared to that of the traditional phenol ...

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  • An improved technique for concentration

    2009-5-22  A difference in slopes for the two galactomannan samples can also be observed (139.9 and 122.3 for guar and LBG respectively), indicating a slight difference in the refractive indices of guar gum and locust bean gum. Download : Download full-size image; Fig. 3. Calibration chart for purified guar gum and purified locust bean gum using DRI method.

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  • Ultrasonication of mayonnaise formulated with

    The increase in US amplitude caused a linear increase in the refractive index (ranging from 1.3681 to 1.3791) and decreased pH (ranging from 3.686 to 3.523). A significant reduction in whiteness (L* value) from 78.300 to 73.860 was noted for XG/GG (1:1) samples.

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  • GUAR GUM Chemical and Technical Assessment

    2011-4-19  Guar Gum (CTA) 2008 - Page 1(4) GUAR GUM Chemical and Technical Assessment Prepared by Yoko Kawamura, Ph.D., for the 69th JECFA 1. Summary Guar gum is mainly consisting of the high molecular weight (approximately 50,000-8,000,000) polysaccharides composed of galactomannans and is obtained from the endosperm of the seed of the

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  • Public Science Framework-Journals - Paper - HTML

    Refractive index of the extracted guar gum was determined according to AOAC (1984), using Refract- meter HILGER WATTS -M46.315/56304-27137, England. 2.8.2. Relative Viscosity

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  • An improved technique for concentration

    In this article, we present an easy and robust method for determining the concentration of galactomannan solutions by utilizing a Differential Refractive Index (DRI) detector. Calibration charts for guar gum and locust bean gum were constructed for the DRI method, with the accuracy of results being compared to that of the traditional phenol ...

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  • The use of molecular dynamics for the study of

    Size exclusion chromatography with dual detection, i.e., employing a refractive index, concentration sensitive, detector together with a multiangle light scattering detector which is sensitive to molecular size, has been applied to study the solution properties of guar gum in water with different concentrations of

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  • PURIFICATION, FRAGMENTATION AND

    2018-2-15  Guar gum was purified to remove impurities like proteins, fibers and fats and hydrolyze by different chemical and enzymatic means to decrease its roughness and increase thermal stability etc. Swelling ratio of crude guar gum was 2.73 g that was higher than purified (2.57g), base (2.49g), acid (2.23 g). and enzyme (2.31) hydrolyzed samples.

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  • Guar Gum - PharmaCentral

    Guar gum is a galactomannan, a polysaccharide found in the endosperm of guar beans (Cyamopsis tetragonoloba). From a chemical point of view, Guar gum consists of linear chains of (1→4) –β-D-mannopyranosyl units with α-D-galactopyranosyl units attached by (1→ 6) linkages. The ratio of D-galactose to D-mannose is between 1:1.4 and 1:2. Guar gum occurs as an odorless or nearly odorless ...

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  • Cas 9000-30-0,Guar gum lookchem

    9000-30-0, safety clearance 99% Guar gum from China manufacturer. Cas No: 9000-30-0. USD $ 10.0-20.0 / Gram. 100 Gram. 10 Metric Ton/Month. WUHAN MULEI NEW MATERIAL CO., LTD. Contact Supplier. High quality Hydroxypropyl Guar gum /Guar hydroxypropyltrimonium chloride.

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  • Guar gum: processing, properties and food

    2011-10-4  Production. Guar gum is a gel-forming galactomannan obtained by grinding the endosperm portion of Cyamopsis tetragonolobus, a leguminous plant grown for centuries mainly in India and Pakistan where it is a most important crop that has long been used as food for humans and animals (Chandirami 1957).The guar plant is essentially a sun-loving plant, tolerant of high environmental temperatures but ...

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  • Carboxymethyl guar gum nanoparticles for drug delivery ...

    guar gum nanoparticles by ionic gelation with STMP has not been reported in the literature. The aim of this work was to investigate the possibility to formulate cost-effectively carboxymethyl guar gum nanoparticles for biomedical applications such as drug delivery using trisodium trimetaphosphate (STMP) as cross-linker. 2. Experimental 2.1.

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  • Density, Viscosity, Refractive Index, and Speed of

    2019-5-25  Experimental results of density, viscosity, and refractive index at 298.15, 303.15, and 308.15 K and speed of sound at 298.15 K in the binary mixtures of methyl acetate + ethylene glycol or + poly(...

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  • An improved technique for concentration measurement

    Guar gum Concentration Refractive index abstract Galactomannans such as guar gum and locust bean gum are naturally occurring polysaccharides which have been widely used in various industries. One of the issues when dealing with these galactomannans is that they do not dissolve completely into water; therefore the actual dissolved concentration ...

  • Get Price
  • Public Science Framework-Journals - Paper - HTML

    Refractive index of the extracted guar gum was determined according to AOAC (1984), using Refract- meter HILGER WATTS -M46.315/56304-27137, England. 2.8.2. Relative Viscosity

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  • Physicochemical Characterization of Gum of Some

    The results obtained from all lines studied, GM2, GM6, GM8, GM9 and GM34 were compared those from a known control cultivar, L53. Physical characterization of the guar gum extracted included the determination of pH, relative viscosity, refractive index Expand

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  • Iraqi Academic Scientific Journals - IASJ

    The solubility of fenugreek gum was lower than guar gum (58.3%, 100%, respectively). The refractive index of fenugreek and guar gum were 1.334, 1.3345 respectively. The density of fenugreek and guar gum were 1.0095, 1.0083 g/cm3, respectively. The viscosity of fenugreek gum was lower as compared with guar gum ( 70.63 mp, 550.12mp, respectively).

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  • PURIFICATION, FRAGMENTATION AND

    2018-2-15  Guar gum was purified to remove impurities like proteins, fibers and fats and hydrolyze by different chemical and enzymatic means to decrease its roughness and increase thermal stability etc. Swelling ratio of crude guar gum was 2.73 g that was higher than purified (2.57g), base (2.49g), acid (2.23 g). and enzyme (2.31) hydrolyzed samples.

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  • Solvent responsive healing of guar gum and guar gum ...

    Guar gum, a galactomannan extracted from the seed of the leguminous shrub Cyamopsis tetragonoloba was found to form a soft elastic gel in 1-butyl-3-methylimidazolium chloride (10% w/v). A nanocomposite gel of the gum with higher strength was prepared in the presence of multiwalled carbon nanotubes (MWCNT). The gels showed healing ability in the presence of three polar aprotic solvents namely ...

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  • Synthesis of oxidized guar gum by dry method and its ...

    2011-12-1  Synthesis of oxidized guar gum by dry method and its application in reactive dye printing. Gong H (1), Liu M, Zhang B, Cui D, Gao C, Ni B, Chen J. Author information: (1)Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou ...

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  • Density, Viscosity, Refractive Index, and Speed of

    2019-5-25  Experimental results of density, viscosity, and refractive index at 298.15, 303.15, and 308.15 K and speed of sound at 298.15 K in the binary mixtures of methyl acetate + ethylene glycol or + poly(...

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  • Thermal stability and haemolytic effects of

    2018-1-25  Guar gum is a galactomannan obtained from ground endosperm of Cyamopsis tetragonoloba (L) and considered as an excellent source for dietary fiber (Greenberg and Sellman 1998).Chemically, guar gum is a polysaccharide comprised of mannose and galactose sugars units in ratio 2:1.

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  • Influence of pumpkin puree and guar gum on the

    2019-10-17  The effects of pumpkin puree and guar gum on the bioactive, rheological, thermal and sensory properties of ice cream were investigated. The addition of pumpkin puree increased total phenolic content, dietary fibre, and antioxidant activity. Appropriate models described shear thinning and thixotropic behaviours of all mixes.

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