Water-soluble polysaccharides of improved palatability
A technology of water-soluble polysaccharides and polysaccharides, applied in food preparation, coating, food science, etc., can solve problems such as skin and eye irritation
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[0039] All parts and percentages are by weight unless otherwise mentioned. In the examples, the following production and testing procedures were used.
[0040] Produces methylcellulose (B) with s23 / s26 of 0.36 or less
[0041] Methylcellulose (B) was produced according to the following procedure. Finely ground wood cellulose pulp was loaded into a jacketed stirred reactor. The reactor was evacuated and purged with nitrogen to remove oxygen, then evacuated again. The reaction proceeds in two stages. After stirring the mixture of aqueous sodium hydroxide solution and cellulose at 40° C. for about 20 minutes, 1.5 moles of dimethyl ether and 2.3 moles of methyl chloride per mole of anhydroglucose unit were added to the reactor. After stirring the mixture of aqueous sodium hydroxide solution and cellulose at 40° C. for about 20 minutes, 1.5 moles of dimethyl ether and 2.3 moles of methyl chloride per mole of anhydroglucose unit were added to the reactor. The contents of the r...
example 1 and 2
[0073] The aqueous solution is foamed in a known manner by bringing the aqueous solution comprising 3% by weight of methylcellulose in water into contact with a stream of air. A method of producing foam is described in International Patent Publication WO03 / 020244. In a vertical high shear granulator from Powrex Corporation (Powrex Corporation), the foamed aqueous solution was mixed with 500 g METHOCEL at a rate of 100 g / min. TM K250M cellulose ether contacts. METHOCEL TM The weight ratio between K250M cellulose ether and methyl cellulose (B) is obtained by adding the foaming aqueous solution to METHOCEL TM K250M cellulose ether is controlled by the period of time.
[0074] In Example 1, the period of addition of the foaming fluid was 2.5 min, 1.5% by weight of methylcellulose (B) was added to 98.5% by weight of METHOCEL TM K250M cellulose ether. In Example 2, the period of adding the foaming fluid was 5 min, 3% by weight of methylcellulose (B) was added to 97% by weight o...
example 3
[0090] Methylcellulose (B)-2 was produced in the same manner as described above for methylcellulose (B), but wherein the dry ground methylcellulose was partially depolymerized as described subsequently in a different manner. The methylcellulose was partially depolymerized by contacting it with 1.07 g of HCl gas per 550 g of methylcellulose at a temperature of 70° C. for 3.6 hours. HCl gas was removed by evacuation, the methylcellulose was cooled to room temperature and then neutralized with sodium bicarbonate.
[0091] The DS (methyl group) of methylcellulose (B)-2 is 1.88 (30.9wt% methoxy), the mole fraction (26-Me) is 0.3276±0.0039, the mole fraction (23-Me) is 0.0642±0.0060, s23 / s26 was 0.20±0.02, and the viscosity was 43 mPa·s as measured in 2 wt % aqueous solution at 5° C. using a Schott Ubbelohde tube viscometer.
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