Method of simultaneously producing crystallized sorbitol and daily chemical sorbitol
A technology of crystalline sorbitol and daily chemical grade, which is applied in the field of simultaneous production of crystalline sorbitol and daily chemical grade sorbitol, which can solve the problems of control of unfavorable process conditions, difficulty in guaranteeing product quality, fluctuation of separation effect, etc., and achieve reduction of electrical conductivity, The effect of improving product quality and simplifying the production process
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Embodiment 1
[0037] Example 1: A method for producing crystalline sorbitol and daily chemical grade sorbitol simultaneously, it comprises the following steps:
[0038] S1. Starch sizing: add 30°C water to the starch to sizing until the concentration of the starch milk is 15 degrees Baume, and adjust the pH value of the starch milk to 5 with alkali;
[0039] S2. Liquefaction: add the starch milk after step S1 into the high-temperature-resistant α-amylase, and pour it into a continuous liquefaction device for liquefaction. The number of times of liquefaction is two times, and the injection temperature for the first liquefaction is controlled to be 100°C. , the injection temperature of the second liquefaction is 130°C, the DE value of liquefaction to glucose is 13%, and the dry matter percentage concentration of the liquefaction liquid is 30%; Add 0.3L of high temperature resistant α-amylase with an enzyme activity of 20000u / ml to the starch meter;
[0040] S3. Saccharification: Cool down t...
Embodiment 2
[0048] Example 2: A method for producing crystalline sorbitol and daily chemical grade sorbitol simultaneously, it comprises the following steps:
[0049] S1. Starch sizing: add 40°C water to the starch to sizing until the concentration of the starch milk is 25 degrees Baume, and adjust the pH value of the starch milk to 6 with alkali;
[0050] S2. Liquefaction: add the starch milk after step S1 into the high temperature-resistant α-amylase, put it into a continuous liquefier for liquefaction, the number of times of liquefaction is two times, and control the injection temperature of the first liquefaction to 115°C , the injection temperature of the second liquefaction is 150°C, the DE value of liquefaction to glucose is 17%, and the dry matter percentage concentration of the liquefaction liquid is 35%; Add 0.5L of high temperature resistant α-amylase with an enzyme activity of 20000u / ml to the starch meter;
[0051] S3. Saccharification: Cool down the liquefaction liquid to...
Embodiment 3
[0059] Example 3: A method for producing crystalline sorbitol and daily chemical grade sorbitol simultaneously, it comprises the following steps:
[0060] S1. Starch sizing: add 33°C water to the starch to sizing until the concentration of the starch milk is 18 degrees Baume, and adjust the pH value of the starch milk to 5.5 with alkali;
[0061] S2. Liquefaction: add the starch milk after step S1 into the high-temperature resistant α-amylase, put it into a continuous liquefier for liquefaction, the number of times of liquefaction is two times, and control the injection temperature of the first liquefaction to 108°C , the injection temperature of the second liquefaction is 140°C, the DE value of liquefaction to glucose is 15%, and the dry matter percentage concentration of the liquefaction liquid is 32%; Add 0.4L of high temperature resistant α-amylase with an enzyme activity of 20000u / ml to the starch meter;
[0062] S3. Saccharification: Cool down the liquefied liquid to ...
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