Application of corn and rice in wheat ethanol fermentation process and method for utilizing mixed raw materials for crude material fermentation to product ethanol
A technology of ethanol fermentation and mixed raw materials, applied in fermentation, biofuels, etc., can solve the problems of solid-liquid separation of waste mash, dark color of DDGS, increased production costs, etc., to reduce the loss of nutrients such as starch and improve color , the effect of increasing liquidity
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[0088] Example 1
[0089] This example is used to illustrate the method for producing ethanol by fermentation of raw materials mixed with raw materials provided by the present invention
[0090] (1) By weight, based on 100 parts by weight of wheat, the amount of corn is 700 parts by weight, and the amount of rice with husk is 250 parts by weight. The three starchy raw materials are mixed and crushed together, and the crushed raw materials are sieved through 20 mesh. The rate reaches more than 95%;
[0091] (2) Mix the pulverized raw material with water and the clear liquid of step (6), the clear liquid accounts for 10% by volume of the batching water to prepare a slurry with a dry matter content of 33% by weight, and the prepared slurry temperature is 60 -63°C;
[0092] (3) The above-mentioned powder slurry is pretreated, and the method of the pretreatment is: adding 20 U of acid fungal amylase, 35 U of acid protease, and wood to the above powder slurry per gram of the powder slurry ...
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[0096] Example 2
[0097] This example is used to illustrate the method for producing ethanol by fermentation of raw materials mixed with raw materials provided by the present invention
[0098] (1) By weight, based on 100 parts by weight of wheat, the amount of corn is 300 parts by weight, and the amount of rice with hull is 130 parts by weight. The three starchy raw materials are mixed and crushed together, and the crushed raw materials are sieved through 20 mesh. The rate reaches more than 95%;
[0099] (2) Mix the pulverized raw material with water and the clear liquid of step (6), the clear liquid accounts for 10% by volume of the batching water to prepare a slurry with a dry matter content of 32% by weight, and the prepared slurry temperature is 57 -60℃;
[0100] (3) The above-mentioned powder slurry is pretreated, and the method of the pretreatment is: adding 10 U of acid fungal amylase, 40 U of acid protease, and wood to the above powder slurry per gram of the powder slurry b...
Example Embodiment
[0104] Example 3
[0105] This example is used to illustrate the method for producing ethanol by fermentation of raw materials mixed with raw materials provided by the present invention
[0106] (1) By weight, based on 100 parts by weight of wheat, the amount of corn is 500 parts by weight, and the amount of rice with hull is 200 parts by weight. The three starchy raw materials are mixed and crushed together, and the crushed raw materials are sieved through 20 mesh. The rate reaches more than 95%;
[0107] (2) Mix the pulverized raw material with water and the clear liquid of step (6), the clear liquid accounts for 10% by volume of the batching water to prepare a slurry with a dry matter content of 30% by weight, and the prepared slurry temperature is 58 -61℃;
[0108] (3) The above-mentioned powder slurry is pretreated, and the method of the pretreatment is: adding 30 U of acid fungal amylase, 30 U of acid protease, and wood powder to the above powder slurry with respect to each gra...
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