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KARAYA GUM

Product Name
KARAYA GUM
CAS No.
9000-36-6
Chemical Name
KARAYA GUM
Synonyms
E 416;kullo;kadaya;katilo;mucara;kuteera;Inolaxol;kullogum;Kadai gum;kadayagum
CBNumber
CB2440527
Formula Weight
0
MOL File
Mol file
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KARAYA GUM Property

FEMA 
2605 | KARAYA GUM (STERCULIA URENS ROXB.)
form 
Powder
color 
Yellow to Pale Brown
Odor
bland
EPA Substance Registry System
Karaya gum (9000-36-6)
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Safety

WGK Germany 
2
RTECS 
WI9370000
TSCA 
Yes
Hazardous Substances Data
9000-36-6(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
G0503
Product name
Karaya gum
Packaging
500g
Price
$101
Updated
2024/03/01
Alfa Aesar
Product number
J61844
Product name
Karaya Gum
Packaging
500g
Price
$79
Updated
2024/03/01
Usbiological
Product number
297161
Product name
Gum karaya
Packaging
5g
Price
$383
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
PXT0005300
Product name
KARAYA GUM
Purity
95.00%
Packaging
500G
Price
$4293.14
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
PXT0005300
Product name
KARAYA GUM
Purity
95.00%
Packaging
1KG
Price
$6782.92
Updated
2021/12/16
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KARAYA GUM Chemical Properties,Usage,Production

Description

Sterculia gum (also called gum Karaya, gum kadaya, Indian tragacanth, and India Gum, and by other names) is the dried exudate of Sterculia urens, a tree native to the mountainous regions of central and eastern India. Native collectors tap or drill the trees, and after several days collect the exudate in the form of large, irregular tears that may weigh up to several pounds. The best quality gum is collected during the hot spell (May to June) that precedes the monsoon. The collectors sell the product to dealers who clean and fragment the tears and sort the gum before putting it into export markets. Processors in the United States further purify the gum to remove bark, wood fiber, and soil, then grind, size, and blend the material to obtain uniform grades of gum.
Sterculia gum is also produced from various other species of Sterculia found in India, Africa, Australia, China, and Indochina, but the product is apparently not available separately in commercial amounts. These other gums may be mixed with that from S. urens. Another related gum is produced by species of Cochlospermum.
Sterculia gum is a complex polysaccharide with a high molecular weight of about 9.5 million. The molecule is reported to consist of units of D-galacturonic acid, D-galactose, and L-rhamnose in proportions of 43, 13, and 15 percent, respectively. It has a high acetyl content, with acid numbers reported at between 13.4 and 22.7; on aging or heating, the molecule may split off free acetic acid which gives Sterculia gum a sightly acetous odor.
Sterculia gum absorbs water rapidly to form viscous mixtures at low concentrations; up to 4 percent may be hydrated in cold water to form heavy, viscous pastes. A one percent mixture may have aSterculia gum absorbs water rapidly to form viscous mixtures at low concentrations; up to 4 percent may be hydrated in cold water to form heavy, viscous pastes. A one percent mixture may have a viscosity of 3,330 centipoises. Viscosity decreases with heating and aging. It is used as an emulsifier and food stabilizer.
A dried, gummy exudation from Sterculia urens Roxburgh and other species of Sterculia (Fam. Sterculiaceae), or from Cochlospermum gossypium A. P. De Condolle or other species of Cochlospermum Kunth (Fam. Bixaceae). It occurs in tears of variable size or in broken, irregular pieces having a somewhat crystalline appearance. It is pale yellow to pinkish brown, translucent, and horny, and is sometimes admixed with a few darker fragments and occasional pieces of bark. The gum has a slightly acetous odor and a mucilaginous and slightly acetous taste. In the powdered form it is light gray to pinkish gray. Karaya gum is insoluble in alcohol, but it swells in water to form a gel.

Chemical Properties

Gum karaya is the exudate of Sterculia urens, a tall (30 ft) bushy tree, native to India, where it grows in forests of the eastern and central mountains. The trees are tapped and the exudate, which may be several pounds in weight, is collected and sold at auction. Crude gum karaya is cleaned, ground, sized and blended to obtain uniform grades. Impurities range from 0.1 to 3% and consist primarily of bark, but other foreign matter may be present. The part used is exudate from the bark. The gum has a slight vinegar smell.

Chemical Properties

from sterculia tree

Occurrence

Karaya gum is a tree found in India and Pakistan.

Uses

Used as a thickener and emulsifier

Uses

As denture adhesive; as binder in paper manufacture; as stabilizer, thickener, texturizer, emulsifier in foods; as thickening agent for dyes in textile industry. A substitute for gum tragacanth.

Definition

A hydrophilic polysaccharide which exudes from certain Indian trees of the genus Sterculia. Color varies from white to dark brown or black.

Essential oil composition

Gum karaya is a complex polysaccharide with a very high molecular weight, approximately 9,500,000 daltons. The gum karaya molecule contains D-rhamnose, D-galactose and D-galacturionic acid units. Ratios of 43% D-galacturionic acid, 13% D-galactose and 15% L-rhamnose have been obtained by hydrolysis.

KARAYA GUM Preparation Products And Raw materials

Raw materials

Preparation Products

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KARAYA GUM Suppliers

3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15839
Advantage
69
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
Advantage
57
Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9658
Advantage
60
XI'AN KPC-CN BIOLOGICAL TECHNOLOGY CO.,LTD.
Tel
86-029-85456576
Fax
86-029-85456576-808
Email
daisy_wang@vip.163.com
Country
China
ProdList
292
Advantage
55
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-400-6206333 18521732826
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
Chizhou Kailong Import and Export Trade Co., Ltd.
Tel
Fax
-
Email
xg01_gj@163.com
Country
China
ProdList
9484
Advantage
50
Codow Chemical Co.,Ltd.
Tel
18620099427
Fax
+86-20-62619665
Email
amy@howeipharm.com
Country
China
ProdList
17687
Advantage
55
Shanghai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847; 18021002903
Fax
QQ:3008007432
Email
3008007409@qq.com
Country
China
ProdList
27313
Advantage
60
Shandong Xiya Chemical Co., Ltd.
Tel
4009903999 13395398332
Fax
0539-6365991
Email
sales@xiyashiji.com
Country
China
ProdList
20806
Advantage
60
Chengdu Dianchun Technology Co., Ltd
Tel
400-1166-196 18502815961
Fax
QQ:800101999
Email
cdhxsj@163.com
Country
China
ProdList
14603
Advantage
60
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View Lastest Price from KARAYA GUM manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
KARAYA GUM 9000-36-6
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-30
Hebei Yanxi Chemical Co., Ltd.
Product
KARAYA GUM 9000-36-6
Price
US $40.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-10-18
Hebei Mojin Biotechnology Co., Ltd
Product
KARAYA GUM 9000-36-6
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-09-20

9000-36-6, KARAYA GUMRelated Search:


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