Refractive Index Of Guar Gum

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

    01.08.2012· 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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  • RHEOLOGICAL PROPERTIES OF AQUEOUS …

    Rheological studies of tragacanth and guar gums dispersions were carried out by means of steady shear (3 to 1000/s) and small amplitude oscillatory shear experiments (0.1 to 10 rad/s) for concentrations up to 8.9 g/L for tragacanth and 7.6 g/L for guar gum at 25C using stress controlled rheometer. The dispersions exhibited shear‐thinning characteristics. A simplified Cross model was adequate ...

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  • An improved technique for concentration …

    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 of the solution will always be ambiguous. In this article, we present an easy and robust method for...

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  • An improved technique for concentration …

    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 of the solution will always be ambiguous. In this article, we present an easy and robust method for...

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  • Refractive Index Database – Table of Refractive …

    Refractive Index Database The table below contains links to refractive index data for common materials. Each material in the database has refractive index listed as a function of wavelength over a range typically required for thin-film thickness measurement.

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  • GUAR GUM Chemical and Technical Assessment

    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 guar plant, Cyamopsis tetragonaloba (L) Taub. (syn. …

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  • Carboxymethyl guar gum nanoparticles for drug delivery ...

    The average molecular mass ( ) and the polydispersity index ( ) of the guar gum derivatives were determined by gel permeation chromatography (GPC) on a Polymer Laboratories . 5 System (PL-GPC 120, Varian) instrument equipped with refractive index detector and three PL-aquagel-OH packed columns (8 µm particle size and 20, 40 and 60Å pore type), connected in series. Chromatographic …

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  • An improved technique for concentration …

    22.05.2009· 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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  • PURIFICATION, FRAGMENTATION AND CHARACTERIZATION OF GUM …

    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. Fourier Transform Infra Red analysis of crude guar gum ...

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  • Physicochemical Characterization of Gum of …

    The objective of the present investigation was to determine the physical and chemical properties of five guar (Cyamposis tetragonoloba L. Taup) lines,.. Home. Journals. A-Z Journals Browse By Subject. Guidelines & Policies . Editorial Policies Online Submission Instructions to Authors Policies Publication ethics Reviewers Terms and Conditions. Advertising Conferences Contact us. Journal of ...

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  • Physicochemical Characterization of Gum of …

    The objective of the present investigation was to determine the physical and chemical properties of five guar (Cyamposis tetragonoloba L. Taup) lines,.. Home. Journals. A-Z Journals Browse By Subject. Guidelines & Policies . Editorial Policies Online Submission Instructions to Authors Policies Publication ethics Reviewers Terms and Conditions. Advertising Conferences Contact us. Journal of ...

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  • Development of pH Sensitive Nanoparticles for …

    Guar gum, acryl amide, ammonium per-sulphate, glutaraldehyde, span 80 and glycerol were purchased from LOBA ChemiePvt Ltd, Mumbai, India. All the other reagents were of analytical grade. Preparation of Poly acrylamide-grafted-guar gum (PAAm-g-GG) co-polymer. Synthesis of PAAm-g-GG: The co-polymer PAAm-g-GG was synthesized by free radical polymerization (11, 12). To study the effect of grafting ...

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  • Development of pH Sensitive Nanoparticles for …

    Guar gum, acryl amide, ammonium per-sulphate, glutaraldehyde, span 80 and glycerol were purchased from LOBA ChemiePvt Ltd, Mumbai, India. All the other reagents were of analytical grade. Preparation of Poly acrylamide-grafted-guar gum (PAAm-g-GG) co-polymer. Synthesis of PAAm-g-GG: The co-polymer PAAm-g-GG was synthesized by free radical polymerization (11, 12). To study the effect of grafting ...

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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 for systems with only one and both gums ...

    Get Price
  • 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 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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  • Physicochemical and Functional Properties of Four New ...

    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 The relative viscosity of extracted guar gum (0.1 gram/100 ml) was determined according to AOAC (1984), using U shaped Viscometer, serial No; 350 BS/IP/CF 1544, Germany. 2.8.3. pH- Value PH was determined …

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  • Synthesis of galactosyl glycerol from guar gum by ...

    Synthesis of galactosyl glycerol from guar gum by transglycosylation ... 1.0 ml/min; and detector, L-3300 differential refractive index mon-itor ( High-Technologies Ltd., Tokyo, Japan); (2) column, 250 4.6 mm i.d. NH2P-50 (Asahi Kasei Co., Ltd., Tokyo, Japan); mobile phase, water:acetonitrile, 25:75; column temperature, 25 C; and detector, RI 8020 differential refractive index monitor ...

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  • Gum arabic - CAMEO

    11.03.2020· Gum arabic is the amorphous exudate from the stem of several species of Acacia trees, ... Refractive Index 1.476 (solid) Hazards and Safety. Skin contact and inhalation may cause allergic reactions. Nonflammable. Mallinckrodt Baker: MSDS. Additional Information ° R.Newman, M.Serpico, "Adhesives and Binders" in Ancient Egyptian Materials and Technology, P.Nicholson, I.Shaw (eds.), …

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  • Guar gum effects on food intake, blood serum …

    The effects of guar gum on indices of protein absorption and utilization were also investigated. Diets containing 0%, 10% and 20% (w/w) guar gum or 10% and 20% cellulose powder (reference) were fed to normal rats for 60 days. The rats fed the guar gum diets showed significantly (p < or = 0.05) lower levels of blood serum cholesterol, triacylglycerols, reduced food intake and body weight gain ...

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  • Universidade do Minho: Surface tension 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 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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  • Triple Detection GPC of Guar Gum - PolyAnalytik …

    Molecular structure of Guar Gum Three guar gum samples were dissolved in water at a concentration of 0.3 percent by volume. Analysis was completed on a Viscotek Triple Detector Array (TDA) 302 equipped with a Refractive Index (RI) detector, Viscometer, Right Angle (90o) Light Scattering (RALS) and Low Angle (7o) Light Scattering (LALS).

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  • Universidade do Minho: Surface tension 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 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. For mixtures, the effect of polymer ratio (1:3, 1:1 ...

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  • Guaran – Wikipedia

    Guaran, auch Guargummi genannt, ist ein Pflanzengummi (ein pflanzlicher Schleimstoff).Die chemische Verbindung aus der Gruppe der Polysaccharide ist Hauptbestandteil von Guarkernmehl (oder kurz Guarmehl).Guaran wird unter anderem als Lebensmittelzusatzstoff E 412 verwendet.

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  • Ncdex Live Guar Gum Prices | Ncdex Guar Gum …

    Get free Ncdex Guar Gum Tips. Ncdex Live Guar Gum prices and charts. Ncdex Guar Gum Live chart with Volume, OI and Prices. Know about Ncdex Guar Gum lot size and margin required.

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