Locust bean gum: Difference between revisions
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LOCUST BEAN GUM IN JOHN WEST SALMON PATES IS ACTUALLY THE POO FROM THE LOCUST AND IS NOT TO BE CONFUSED |
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Revision as of 13:49, 20 March 2012
Locust bean gum (LBG, also known as carob gum, carob bean gum, carobin, E410) is a galactomannan vegetable gum extracted from the seeds of the carob tree, mostly found in the Mediterranean region. The long pods that grow on the tree are used to make this gum. The pods are kibbled to separate the seed from the pulp. The seeds have their skins removed by an acid treatment. The deskinned seed is then split and gently milled. This causes the brittle germ to break up while not affecting the more robust endosperm. The two are separated by sieving. The separated endosperm can then be milled by a roller operation to produce the final locust bean gum powder.[1]
Locust bean gum occurs as a white to yellow-white powder. It consists chiefly of high-molecular-weight hydrocolloidal polysaccharides, composed of galactose and mannose units combined through glycosidic linkages, which may be described chemically as galactomannan. It is dispersible in either hot or cold water, forming a sol having a pH between 5.4 and 7.0, which may be converted to a gel by the addition of small amounts of sodium borate.
LBG is used as a thickening agent and gelling agent in food technology.
The bean, when made into powder, is sweet—with a flavor similar to chocolate—and is used to sweeten foods and as a chocolate substitute. It is also used in inedible products such as pet foods, mining products, paper making, and to thicken textiles. It is used in cosmetics and to enhance the flavor of cigarettes. Shoe polish and insecticides also have locust bean gum powder as an additive.[2] It is soluble in hot water.[3]
References
- ^ CyberColloids: Locus bean gum production, CyberColloids, Hydrocolloids research and development webpage.
- ^ Locust Bean Gum Powder [1]
- ^ Martin Chaplin: Locus bean gum, London South Bank University, web page.
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LOCUST BEAN GUM IN JOHN WEST SALMON PATES IS ACTUALLY THE POO FROM THE LOCUST AND IS NOT TO BE CONFUSED