Product Specifications
| Prod Model: |
Food Grade |
| CAS Number: |
9000-30-0 |
| Atc Code: |
A10bx01 |
| Einecs No: |
232-536-8 |
| Main Active Ingredient: |
Guar Gum |
| Application: |
Baked Goods |
Product Description
Guar gum, also called guaran, is a galactomannan. It is primarily the ground endosperm of guar beans. The guar seeds are dehusked, milled and screened to obtain the guar gum.It is typically produced as a free-flowing, off-white powder.
Properties
Chemical composition
Chemically, guar gum is a polysaccharide composed of the sugars galactose and mannose. The backbone is a linear chain of β 1,4-linked mannose residues to which galactose residues are 1,6-linked at every second mannose, forming short side-branches.
Solubility and viscosity
Guar gum is more soluble than locust bean gum and is a better stabilizer, as it has more galactose branch points. Unlike locust bean gum, it is not self-gelling. However, either borax or calcium can cross-link guar gum, causing it to gel. In water, it is nonionic and hydrocolloidal. It is not affected by ionic strength or pH, but will degrade at extremes pH and temperature (e.g. pH 3 at 50 °C). It remains stable in solution over pH range 5-7. Strong acids cause hydrolysis and loss of viscosity, and alkalies in strong concentration also tend to reduce viscosity. It is insoluble in most hydrocarbon solvents.
Guar gum shows high low-shear viscosity but is strongly shear-thinning. It is very thixotropic above 1% concentration, but below 0.3%, the thixotropy is slight. It has much greater low-shear viscosity than that of locust bean gum, and also generally greater than that of other hydrocolloids. Guar gum shows viscosity synergy with xanthan gum. Guar gum and micellar casein mixtures can be slightly thixotropic if a biphase system forms.
Thickening
Guar gum is economical because it has almost eight times the water-thickening potency of cornstarch - only a very small quantity is needed for producing sufficient viscosity. Thus, it can be used in various multiphase formulations: as an emulsifier because it helps to prevent oil droplets from coalescing, and/or as a stabilizer because it helps to prevent solid particles from settling.
Ice crystal growth
Guar gum retards ice crystal growth nonspecifically by slowing mass transfer across the solid/liquid interface. It shows good stability during freeze-thaw cycles.
Since 1992, Hugestone Enterprise Co., Ltd. Has been dedicating itself as an active manufacturer and supplier of chemical products on an international scale. It owns four factories and holds shares in several joint-ventures, covering its products of Chemical Food Additives, Flavoring. Dehydrated Vegetables, Natural Color. We are strong in supplying various kinds of Ascids (Citric Acid, Malic Acid, Sorbitol Acid, Lactic Acid, Tartaric Acid, Amino Acid, etc. ), sweent agents (Aspartame, Acesulfame-K, Sucrlose, Stevioside ) and Gum (Agar Agar, Xanthan Gum)
With its experienced and successful working with both Chinese and international markets, Hugestone Enterprise also collaborates well with and acts as an agent for many factories in various ways. Now Hugestone has expanded its lines with over one hundred kinds of products in Food Ingrdients & Feed Additives, Nutriceuticals( Biochemiclas) & Botanical Extracts, Pharmaceuticals and Intermediates.
In addition, our R&D experts team are engaged in the research and development of new products to tailor our customers' requirements and to perfect our services.
Quality Products and Efficient Services are always our Promise and Principal.
