Methods for degerming and pretreating corns and method for brewing alcohol by adopting corns
A pretreatment and corn technology, applied in the direction of grain treatment, application, grain shelling, etc., can solve the problems of acidic wastewater environmental pollution, need to be further improved, low yield of starch alcohol, etc., to avoid poor color and variability Effects of changing color and improving yield
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Embodiment 1
[0074] This example is used to illustrate the method for corn degermination provided by the present invention.
[0075] Take 800 tons of impurity-removed corn (northeast corn), introduce it into a 1500 cubic meter moistening bin, and soak it with water. The soaking temperature is 80°C, and the soaking time is 6 hours. Based on the dry weight of corn, The water content of the soaked corn is 18% by weight, and then the soaked corn is introduced into a degerming machine for the first degerming treatment to obtain corn flour with a particle diameter of 1.2 mm and umbilicus containing germ. Put the obtained navel containing the germ into a soaking tank of 1000 cubic meters, add water to soak, the soaking temperature is 60°C, and the soaking time is 9 hours, so that the dry weight of the navel is used as the benchmark, and the soaked navel The water content of the umbilicus is 46% by weight, and then enters the dehydration screen to separate the umbilicus from the soaking water, and...
Embodiment 2
[0080] This example is used to illustrate the method for corn degermination provided by the present invention.
[0081] According to the same method as in Example 1, the corn is subjected to the first degermination treatment, the second degermination treatment and the subsequent oil expression treatment, the difference is that the soaking temperature in the moistening bin is 75°C, and the soaking time is 5 hours , so that based on the dry weight of the corn, the water content of the corn after soaking is 15% by weight; the soaking temperature in the soaking tank is 55 ° C, and the soaking time is 6 hours, so that the dry weight of the navel is used as the benchmark, soaking The water content of the umbilicus is 42% by weight, and the isolated germ is 66 tons in dry weight; 500g of the germ (in dry weight) is taken, and 481.5g of dry pure germ is obtained after hydrolysis; Germ is 64 tons by dry weight, and 22.4 tons of crude oil are obtained after oil extraction.
[0082] The...
Embodiment 3
[0084] This example is used to illustrate the method for corn degermination provided by the present invention.
[0085] According to the same method as in Example 1, the corn is subjected to the first degermination treatment, the second degermination treatment and the subsequent oil expression treatment, the difference is that the soaking temperature in the moistening bin is 85°C, and the soaking time is 7 hours , so that based on the dry weight of the corn, the water content of the corn after soaking is 20% by weight; The water content of the umbilicus is 50% by weight, and the isolated germ is 64 tons in dry weight; 500g of the germ (in dry weight) is taken, and 482.5g of dry pure germ is obtained after hydrolysis; Germ is 62 tons by dry weight, and 23.2 tons of crude oil are obtained after oil extraction.
[0086] The purity and oil yield of the germ were calculated, and the results are shown in Table 1.
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