About Guar Gum
From Guar plant‘s (Cyamopsis tetragonolobus) endosperm Guar Gum is derivative. Guar is a legume (a plant of pea family) crop grows best in sandy soils and needs moderate, flashing rainfall with lots of sunshine. Guar gum is found in the seeds of two annual leguminous plants (Cyamopsis tetragonolobus and
psoralioides).
Guar gum is useful as a thickening agent for water and as a reagent for adsorption and hydrogen bonding with mineral and cellulosic surfaces. It is an edible carbohydrate polymer.
It is non-ionic, free flowing, low pale white colored, coarse to fine grounded powder and is water-soluble hydrocolloids.
Guar gum is used as a thickener and emulsifier in commercial food processing. It has almost 8 times the thickening power as corn starch, and is used in dressings, sauces, milk products, and baking mixes. It is also used in paper manufacturing, textiles, printing, cosmetics and pharmaceuticals.
Guar Extracts
Guar Split/Gum 28% (+/- 1% variance) extracts from Guar seed.
The ratio of Churi and Korma 67% depending upon the quality of the seed.
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Split/Gum is further refined to Guar Powder |
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Churi and Korma are used for Cattle Feed |
Properties
The guar gum is a polysaccharide which in water gives hexose sugar, mannose and galactose. These hexose sugars are soluble both in cold and hot water but it is insoluble in most of the organic solvents. In water it gives high viscosity even used small quantity. Strong acids cause hydrolysis and loss of viscosity; alkalies in strong concentration also tend to reduce the viscosity. Adding borax solution will form a gelatinous mass. Guar gum is compatible with starch, alginate, agar etc.
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It is easily soluble in both hot and cold water. |
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Properties of film forming. |
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Remains stable in solution over wide range of pH values from |
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5-7. |
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Good thickening agent. |
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High viscosity. |
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Resistance to oils, greases and solvent. |
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Capacity of Water binding. |
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Functioning at low temperatures. |
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Compatible with many other hydrocolloids used in food |
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formulations. |
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Versatility due to number of free hydroxy groups to |
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make derivatives for specific applications. |
Specifications
|
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AG
/46 |
AG
1/30
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AG 2/35
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AG 2/50
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AG 3/35 |
AG 3/50 |
E. NUMBER |
E-412 |
E-412 |
E-412 |
E-412 |
E-412 |
E-412 |
| Mesh |
40.60 |
100 |
200 |
200 |
300 |
300 |
| APPEARANCE |
off-white Powder |
off-white Powder |
off-white Powder |
off-white Powder |
off-white Powder |
off-white Powder |
| MOISTURE |
12% Max. |
12% Max. |
12% Max. |
12% Max. |
12% Max. |
12% Max. |
PROTEIN
(N X 6.25) |
5% Max. |
5% Max. |
5% Max. |
5% Max. |
5% Max. |
5% Max. |
| ASH |
1.5% Max. |
1.5% Max. |
1.5% Max. |
1.5% Max. |
1.5% Max. |
1.5% Max. |
| ACID INSOLUBLE RESIDUE(A.I.R.) |
4% Max. |
4% Max. |
4% Max. |
4% Max. |
4% Max. |
4% Max. |
GUM CONTENT
(by difference) |
80% Min. |
80% Min. |
80% Min. |
80% Min. |
80% Min. |
80%Min. |
pH
(1% Solution) |
5.5–6.5 |
5.5–6.5 |
5.5–6.5 |
5.5–6.5 |
5.5–6.5 |
5.5–6.5 |
| VISCOSITY 24 Hours (1% Sol. Brookfield RVT Viscometer 25°C, Spindle No. 4, 20 rpm) |
2000 CPS Min. |
3000 CPS Min. |
3500 CPS Min. |
5000 CPS Min. |
3500 CPS Min. |
5000 CPS Min. |
| Total Plate Count (/gram) |
< 5000 |
< 5000 |
< 5000 |
< 5000 |
< 5000 |
< 5000 |
| Yeast and moulds
(/gram) |
< 300 |
< 300 |
< 300 |
< 300 |
< 300 |
< 300 |
| Coliforms |
Negative |
Negative |
Negative |
Negative |
Negative |
Negative |
| Salmonella |
Negative |
Negative |
Negative |
Negative |
Negative |
Negative |
Quality
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