Saccharification method of using extruded white sorghum added with mesophilic enzyme as beer auxiliary material

A sorghum and medium temperature technology, which is applied in the brewing of beer, biochemical equipment and methods, and preparation of wort, can solve the problems of long saccharification time and insufficient starch degradation, and achieves improved saccharification yield and shortened saccharification time. , the effect of preventing oxidation

Inactive Publication Date: 2014-07-09
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the technical problems of insufficient starch degradation and long saccharification time in the prior art when white sorghum is used as beer brewing auxiliary material, and to provide a saccharification method using extruded white sorghum as beer auxiliary material. Improve the saccharification time of white sorghum used as beer brewing auxiliary materials, and improve the filtration performance of wort and the yield of wort extract

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Saccharification process of extruded white sorghum

[0028] 1. Extrusion treatment: crush white sorghum, then pass through a 30-mesh sieve; adjust the water weight percentage of the crushed white sorghum to 30%, and mix it with medium-temperature α-amylase evenly. The amount of medium-temperature α-amylase added It is 9.0 liters / ton; Carry out extruding treatment to white sorghum pulverized matter, described extruding treatment is carried out in single-screw extruder, wherein, be divided into three temperature zones from feeding end to discharging end, temperature self-control adjustment , the temperature at the feeding end was set to 30°C, the temperature in the middle extrusion zone was set to 49.5°C, the temperature at the discharge end was set to 69.5°C, the screw speed was 200 r / min, and the diameter of the die hole was 8.0mm; the extruded white sorghum was cut into Chopped with a knife, cooled to room temperature, dried at a temperature of 45°C to ma...

Embodiment 2

[0031] Embodiment 2: Saccharification process of extruded white sorghum

[0032]1. Extrusion treatment: crush white sorghum, then pass through a 40-mesh sieve; adjust the water weight percentage of the crushed white sorghum to 30.5%, and mix it with medium-temperature α-amylase evenly. The amount of medium-temperature α-amylase added It is 9.5 liters / ton; Carry out extruding treatment to white sorghum pulverized matter, described extruding treatment is carried out in single-screw extruder, wherein, be divided into three temperature zones from feeding end to discharging end, temperature self-control adjustment , the temperature at the feeding end was set at 29.5°C, the temperature at the middle extrusion zone was at 50°C, the temperature at the discharge end was at 70°C, the screw speed was 202 r / min, and the diameter of the die hole was 9.0 mm; Chopped with a knife, cooled to room temperature, dried at a temperature of 50°C to make the white sorghum extrudate have a moisture w...

Embodiment 3

[0035] Embodiment 3: the brewing of beer

[0036] Add hops and ferment the qualitative wort obtained in Example 1 to produce beer using the traditional process. The transparency, foam shape, aroma and taste of the prepared beer meet the requirements of national standards; the turbidity is 0.8EBC, and the color is 6.4EBC , the alcohol content is 3.6%, the original wort concentration is 8.3°P, the total acid is 1.70mL / 100mL, the diacetyl is 0.05 mg / L, and the formaldehyde is 0.10 mg / L.

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PUM

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Abstract

The invention discloses a saccharification method of using extruded white sorghum added with mesophilic enzyme as beer auxiliary material. The method comprises the following steps: smashing the white sorghum, and then sieving with a sieve with 30-40 meshes; adjusting the moisture weight percent of smashed white sorghum to be 29.5-30.5% and uniformly mixing the smashed white sorghum with mesophilic alpha-amylase, wherein the additive amount of the mesophilic alpha-amylase is 8.5-9.5 L / ton; conducting extrusion treatment on the smashed white sorghum, wherein the extrusion treatment is conducted in a single screw extrusion machine; cutting up extruded white sorghum by a cutter, cooling to room temperature, drying under the condition that the temperature is lower than or equal to 50 DEG C to enable the moisture weight percent of the extruded white sorghum to be 13.0-15.0%, smashing, and sieving with the sieve with 30-40 meshes for later use; simultaneously putting the extruded white sorghum and smashed barley malt into a gelatinization container for saccharification treatment. The method reduces the saccharification time of using the white sorghum as the beer brewing auxiliary material, and improves the filterability of wort and yield of wort extract.

Description

technical field [0001] The invention relates to the field of beer brewing, in particular to the technical field of low-temperature extrusion and saccharification treatment of white sorghum used for beer brewing with medium-temperature α-amylase. Background technique [0002] The auxiliary materials are used in beer brewing to improve the extraction rate and the stability of beer, and reduce the brewing cost to a certain extent. Based on the fact that the use of auxiliary materials is more economical than malt, many scholars and companies at home and abroad have carried out research on beer auxiliary materials. [0003] In 2004, Dong Jianqiu found through research that the content of peptides in sorghum auxiliary wort is the highest, and when brewing beer with sorghum auxiliary materials, ideal wort components and indicators (such as α-amino nitrogen, wort yield, etc.) can be obtained. C. I. Owuamad et al. used ungerminated sorghum as an auxiliary material to brew qualified ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12C7/04C12C5/00
Inventor 马成业郑慧王玉露
Owner SHANDONG UNIV OF TECH
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