Name | Gum tragacanth |
Synonyms | FEMA 3079 GUM SHIRAZ SHIRAZ GUM Tragant gum Astragalus gum Gum tragacanth GUM TRAGACANTH Gum tragacanth power TRAGACANTH GUM (ASTRAGALUS SPP.) |
CAS | 9000-65-1 |
EINECS | 232-552-5 |
Molar Mass | 840000 |
Water Solubility | Slightly soluble in water. |
Solubility | H2O: soluble20mg/mL |
Appearance | powder |
Color | Buff coloured powder |
Odor | Odorless |
Merck | 14,4581 |
Storage Condition | Room Temprature |
Stability | Stable. Incompatible with strong oxidizing agents. High levels of dust in the air create the risk of explosion. |
MDL | MFCD00131255 |
Physical and Chemical Properties | The unground astragalus gum system is flat or flake, usually curved fragments or straight or spiral twisted long fragments with a thickness of 0.5~2.5mm. White to pale yellow, translucent, horny tissue with short fissures. Odorless, tasteless, slimy palate. It is easier to crush when heated to 50 ℃. It is difficult to dissolve in water, but some astragalus gum (bassorin) is easy to absorb water and swell into gelatinous substances. 1g sample swelled into a smooth, thick, milky white gel-like substance in 50ml of water. The viscosity of astragalus gum solution is extremely high, the pH value is 5~6, the viscosity is the largest when the pH value is 5, and the pH value is stable to the viscosity (up to pH value of 2). After adding 1000 times of water and stirring, it will decompose into a neutral solution. Hydrolysis produces galacturonic acid, galactose, arabinose, xylose and fucose, and there may be small amounts of rhamnose and glucose (produced by trace amounts of starch and/or cellulose). Insoluble in ethanol, does not swell in 60%(w/V) ethanol aqueous solution. |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 2 |
RTECS | XW7750000 |
TSCA | Yes |
HS Code | 29400000 |
Reference Show more | 1. Luo Wenjia, Wang Liping, Wu Jing, et al. To explore the mechanism of fukejing capsule in treating rats with chronic pelvic inflammatory disease from the correlation between "long-time disease entering collaterals" and Hemorheology and related cytokines. Pharmacology and clinical medicine. 2. Gong Jing ni, Yang Jin, Yuan Yi, et al. Rheological and textural properties of konjac glucomannan/tragacanth composite hydrogels [J]. Polymer Materials Science and Engineering, 2017(12). 3. Li Xiaoting Bai Yubin Li Bing et al. Study on the compatibility of excipients for compound suspension of pentachlorosamine and albendazole [J]. Animal and Veterinary Science v.51;No.407(06):57-62. 4. [IF = 6.429] Huang Lian et al."Effect of the added Polypropylene on the release of thyme essential oil and structure properties of chitosan based film." Food Packaging Shelf. 2020 Mar;23:100467 |
unmilled astragalus gelatine plate-like or flaky, 0. 5~2.5mm thick white to light yellow solid, odorless, tasteless, sticky and smooth in taste. Insoluble in water, insoluble in ethanol, in 60% ethanol water solution does not swell. When the pH value is 5, the viscosity is the largest.
The coagulated substance naturally exuded from the long-cracked part of the trunk of the leguminous shrub plant astragalus was collected, or the coagulated substance was separated to promote its outflow of mucus, which was dried and pulverized after collection.
The mucus extracted from the leguminous plant tragacanth in this line was obtained by drying.
This product is a white or white-like translucent flat and curved ribbon-like sheet; The surface is parallel fine stripes; Hard, flat and smooth; Or white or white-like powder; Swells in water to form colloidal mucus.
can be used as acidic food thickener, suspension emulsion, emulsifier and pharmaceutical adhesive. Can be used in food, cosmetics, printing and dyeing, leather and toothpaste, the general dosage of less than 2%. It can be used as a binder for tablets in the pharmaceutical industry.
take 9.0g of this product, plus gassing potassium 3. 0g, add water 3 0 0 m l, stir at 8 0 0 r /m I n for about 2 hours, until completely uniform dispersion and wetting, determination according to law (General Rule 0 6 3 3 Third method), with B r o o k f ie ldR V -D V type rotary viscometer, No. 5 rotor, 60 revolutions per minute, at 20°C ± 0. 1T: The viscosity should be 80% to 120% of the indicated viscosity.
take 2.0g of this product, put it in a 250ml round-bottom flask, add 95ml of methanol to vortex to wet the sample, Add 60ml of hydrochloric acid solution (25-I00), add several grains of glass beads, after heating and refluxing in a water bath for 3 hours, the glass beads were removed, and the sample solution was filtered under reduced pressure with a constant weight G4 vertical melting funnel while hot. The round bottom flask was washed with a small amount of water and filtered, the residue was then washed with 40ml of methanol in portions and dried at 110 ° C. To constant weight. 0%.
take the product l.O g, inspection according to law (General rule 2302), ash residue shall not exceed 4 .0%.
The residue left under the ash extraction item shall be inspected according to law (General Principles 0821, second law) and shall not contain more than 20 parts per million of heavy metals.
This product shall be taken and inspected according to law (General Principles 1105 and 1106). The total number of aerobic bacteria per l g of test product shall not exceed lOOcfu, the total number of molds and yeasts shall not exceed lOOcfu, E. Coli should not be detected.
pharmaceutical excipients, adhesives, suspending agents and emulsifiers.
sealed and stored in a dry place.