Exudate gums arabic

Plant exudates Gum Arabic Adraganta gum Karaya gum Gatti gum... 

Several naturally occurring anionic polysaccharides exist alginic acid, pectin, carrageenans, xanthan gum, hyaluronic acidic, gum exudates (gum arabic, karaya, traganth, etc.). Cross-linking sites that occur when a polyvalent cation (e.g. Ca +) causes interpolysaccharide binding are called "junction zones . 

Tree exudates Gums arabic/karraya/tragacanth... 

Gum Arabic. Gum arabic [9000-01-5] is an exudate of the Acacia tree, found in the Middle East. It dissolves readily in water to produce low viscosity solutions. It is used in confectionery products, bakery toppings, beverages, fro2en dairy products, and dry drink mixes (86). 

Gum Arabic. Gum arable [9000-01-5] is a dried exudate from a species of the acacia tree found in various tropical and semitropical areas of the world. Most of the commercial gum comes from a single species, Jicacia Senegal. The largest producers are the RepubHc of Sudan and several other West African countries, with over 75% of the world s production coming from the Sudan. The best grade comes from Jicacia Senegal and about 90% of the Sudan s production is from this source the remainder comes Jicacia sejal... 

Gum Arabic (GA) or Acacia gum is an edible biopolymer obtained as exudates of mature trees of Acacia Senegal and Acacia seyal which grow principally in the African region of Sahe in Sudan. The exudate is a non-viscous liquid, rich in soluble fibers, and its emanation from the stems and branches usually occurs under stress conditions such as drought, poor soil fertility, and injury (Williams Phillips, 2000). 

Mocak, J. Jurasek, P. Phillips, G.O, Vargas, S. Casadei, E. Ghikamai, B.N. (1998). The classification of natural gums. X. Chemometric characterization of exudate gums that conform to the revised specification of the gum arabic for food use, and the identification of adulterants. Food Hydrocolloids, Vol. 12, No. 2, (April 1998), pp 141-150, ISSN 0268-005X. 

Gum, arabic. This thickening agent used for stabilizing emulsions is made from the dried exudate of the stems of the Acacia Senegal. 

Gum arabic comes from various species of Acacia. The gum exudes through cracks, injuries, and incisions in the bark and is collected by hand as dried tears. Gum arabic is unique among gums because of its high solubility and the low viscosity and Newtonian flow of its solutions. While other gums form highly viscous solutions at 1—2% concentration, 20% solutions of gum arabic resemble a thin sugar syrup in body and flow properties. 

Natural gums are exuded in a variety of shapes characteristic of the species of origin. These shapes include the globular shape of gum arabic and the flakes or thread-like ribbons of gum tragacanth (36). 

Although many plant gum exudates are known (37,38), only gum arabic, ghatti, karaya, and tragacanth have wide industrial use. 

The acacia trees produce gum arabic only under adverse conditions, lack of moisture, poor nutrition, and hot temperatures. Gum arabic is produced at wounded surfaces of the acacia trees. The wounds are generally produced deliberately in cultivated trees by stripping bark during the dry season. The gum is collected by hand over a period of several weeks with average yields of 250 grams per tree per year. Cmde exudates are hand sorted and exported before processing and milling to various specifications. 

Some wood polysaccharides are extensively branched and are readily soluble in water. Typical of certain tropical trees is a spontaneous formation of exudate gums, which are exuded as viscous fluids at sites of injury and after dehydration give hard, clear nodules rich in polysaccharides. These gums, for example, gum arabic, consist of highly branched, water-soluble polysaccharides. 

Natural gums include plant exudates, seed gums, plant extracts, seaweed extracts, and the extracellular microbial polysaccharides. Plant exudates include gum arabic, gum ghatti, gum karaya, and gum tragacanth. Seed gums include... 

Gum arabic is an exudate of acacia trees, of which there are many species distributed over tropical and subtropical regions. The most important growing area for species that give the best gum is in Sudan. Purified, spray-dried forms of gum arabic are commonly used. 

Exudate from acacia trees Gum arabic Soluble dietary fibre... 

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