Sulfur-free konjac gum preparing method
A technology of konjac gum and konjac refined powder is applied in the field of konjac gum desulfurization, which can solve the problems of inability to completely remove sulfur dioxide from konjac gum, and achieve the effects of improving color, ensuring viscosity and improving product viscosity.
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[0023] The glucomannan contained in konjac gum is a high molecular polysaccharide, which is polymerized by glucose and mannose residues with a molecular ratio of 1:1.6 through β-1.4 glycosidic bonds, and sulfur dioxide is attached to the main chain of glucomannan In fact, it is difficult to remove it by general physical and chemical methods. Konjac glucomannan is easily soluble in water, but insoluble in organic solvents such as methanol, ethanol, ether, etc. Ethanol is a good solvent, which can dissolve many inorganic substances and many organic substances, and can make the organic substances participating in the reaction It can dissolve with inorganic substances, increase the contact area and increase the reaction rate. Sulfur dioxide is an acidic substance that is easily soluble in water. The molecular weight of sulfur dioxide is 64.07, the relative density is 2.264 (0°C), the melting point is -72.7°C, the boiling point is -10°C, and the solubility in 338.32kPa water is 8.5...
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