Alginate (alginate) or l (algin) are hydrocolloids (hydrocolloid) type polysaccharide (polysaccharide) that is an ESA pour aroma polysaccharide (heteropolysaccharide), which is a polymer of sugar derivatives include acid man nu-acid (D-mannuronic acid)-gu (guluronic acid).Alginate extracted from the cell walls of Brown algae Macrocystis pyrifera (brown algae), e.g., Laminaria digitata, Laminaria hyperborea and past the drying. Resembles a powder.Al-JI an unbranched binary copolymer of 1, 4-b-D-manuronic acid (M), and L-guluronic acid (G) in the molecule contains regions of G and M homopolymeric called G-and M-blocks, respectively, and also with some of the molecules is therefore MG-blocks Figure 4.5 copolymer and a proportion of these structures determines the properties of Al-JI as well if there are polymer laminate G in high doses, there will be a treasure of hardened gel concentration of metal ions (metal polyvalent cation), but if there is a high volume M of polymer will tend to gel soft gel State to occur. Al-Jin produced sold to trade traffic with several derivative, so have properties in different, such as Ca2 +, salts, derivatives of K +, Na +, NH4 +, and also produced in the form of propylene glycol alginate, propylene oxide with alginic acid reaction under pressure, these derivatives are soluble in both hot and cold water. The viscosity of alkaline-JI laminate depends on temperature, concentration, molecular weight, and metal ions.General characteristics:• Is in the form of compound sodium and salt, calcium, magnesium, potassium, acid-alginate (alginic acid), which are soluble in water.• Causes or gel as a gel (gelling agent) that is heat-resistant gel (thermoirreversible gel), or do not change to-when heated. Al JI laminate is used in many food products since the 1970s. By 1920, in some kinds of canned food used as viscosity. More stability, making e-solution stability The substance causes the gel and inhibitors to syneresis occurs, for example,• Propylene glycol alginate is used in salad dressings (salad dressing) and a beer because it has a high solubility at pH is low.• Al: salinomycin sodium JI laminate used as an ingredient in frozen lime pie filling to achieve stability during freeze-thaw.• Coat the pieces of meat before frozen to prevent freeze burn with a piece of meat.• Used as stabilizers, with ice cream, sherbet, frozen dessert, processed cheese and use as products such as Onion rings restructured Alginate gel and Shrimp-like fish products.
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