Grain dry segmented steam explosion pretreatment method for fermenting liquor by using pure grain in solid state

A solid-state fermentation and grain technology, applied in the field of liquor brewing, can solve the problems of undefined steam temperature, negative impact, high cost, etc., and achieve the effects of shortening the time of saccharification and fermentation, increasing the reaction contact area, and saving energy consumption

Inactive Publication Date: 2012-10-24
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process solves some problems to a certain extent, the double-set pressure vessel is used for air puffing. Not only the pressure tank is a pressure vessel, but also the decompression tank is also a pressure-resistant equipment, and the volume is often more than 10 times that of the pressure tank. , large investment
The decompression tank needs vacuum operation, which requires high-cost vacuum equipment. Such equipment is complicated to operate, has a low filling coefficient and low operational safety.
There are also a series of problems in extrusion and puffing. First, the scope of application of the equipment is limited, and the materials processed by a single machine are limited. Different raw materials require different screws and operating parameters, but it is extremely difficult to adjust the equipment and operating parameters. Second, the existing Extrusion equipment is rough in design, processing, and poor in durability, which limit the large-scale application of extrusion equipment in production, and are often used in the processing of a small amount of food
Thermal injection technology and air puffing technology have similarities in essence, but there are obvious differences in equipment and technology. Although the invention patent with publication number CN1060679A has given various operating parameters, the key parameters such as The temperature of the steam is not clearly defined, and it is difficult to use the expression of the weight of the steam into the actual operation. In fact, whether the grain can play a good puffing effect, a key factor is the physical properties of the steam and The amount of usage, the use of ordinary steam will easily lead to the existence of condensed water in the material, and the existence of condensed water has a serious negative impact on the puffing effect of grains, which makes it difficult to achieve the desired results in the implementation of the patent. This patent is automatically abandoned. This may also be an important factor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 200kg corn, its moisture content is determined to be 10.5%, pour it all into 0.5m 3 In the steam explosion reaction tank with two-way air intake and quick-opening door, superheated steam with a pressure of 0.8MPa and a temperature of 190°C is introduced, and high-temperature air at 190°C is introduced at the same time to make the internal pressure of the reactor reach 1.4MPa. After the pressure reaches Close the inlet valve, and after 3 minutes, the air pressure inside the reactor reaches 1.45 MPa, and quickly open the ball valve at the bottom of the reactor to explode the material into the material collector. The corn exploded by this method expands in volume, blooms at the bottom, and the particles are crushed into 1 / 2 to 1 / 4 petals, which are used for continuous fermentation. The fermentation effect is good, the fermentation time is shortened by about 1 week, and the wine yield is increased by 1.5. %, there was no significant change in the high-quality wine rate.

Embodiment 2

[0021] 100kg of wheat and 100kg of barley are measured to have a water content of 11.3%, and the air humidity in the granary is adjusted to increase the water content to 15% before steam explosion. Since wheat and barley undergo similar steam explosion conditions, the two can be mixed. Pour both into 0.5m 3 In the steam explosion reaction tank with two-way air intake and quick-opening door, superheated steam with a pressure of 0.7MPa and a temperature of 200°C is introduced, and high-temperature air at 200°C is introduced at the same time, so that the pressure inside the reactor reaches 1.6MPa. After the pressure reaches Close the inlet valve, and after 3 minutes, the air pressure inside the reactor reaches 1.65MPa, and quickly open the ball valve at the bottom of the reactor to explode the material into the material collector. The wheat and barley steam-exploded by this method are enlarged in volume and have a gap in the middle, and are directly used for continuous fermentat...

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PUM

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Abstract

The invention discloses a grain dry segmented steam explosion pretreatment method for fermenting liquor by using pure grain in solid state, which belongs to the field of liquor fermentation. The method comprises the following basic steps of: pre-balancing the moisture content of the grain; putting the grain into a two-way air inlet quick-opening steam explosion reaction tank separately or together; introducing superheated steam and high-temperature air until a certain pressure is achieved; and maintaining for a certain period of time, and quickly opening a ball valve at the bottom of the steam explosion tank after the pressure rises to a peak valve to explode a material into a normal-pressure collecting tank. In the grain treated by the method, the cell tissue is completely damaged, the curing degree of starch is high, and the utilization ratio is high in a fermenting process; meanwhile the grain is sterilized, so that bacteria are removed. By adopting the method, the grain treatment energy consumption in a liquor plant can be lowered, the liquor yield and the superior product rate are increased, and the comprehensive benefit is increased.

Description

technical field [0001] The invention belongs to the field of liquor brewing, and in particular relates to a pre-treatment method for grain dry method segmental steam explosion for pure grain solid-state fermented liquor. Background technique [0002] my country is a big country in liquor production, and in 2008 the liquor production reached 5 million tons. With the improvement of people's living standards, people's requirements for the quality of liquor are also getting higher and higher. Pure grain solid-state fermented liquor is a representative of the traditional food industry of the Chinese nation. It uses pure grain as raw material, uses Qujing solid-state saccharification, solid-state fermentation, solid-state distillation, storage, and blending to produce the specific quality of Chinese high-quality liquor. Due to the use of pure grain fermentation, there is bound to be a large amount of grain that needs to be processed. The traditional processing method of Chinese l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12G3/02
Inventor 陈洪章李宏强
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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