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Food leavening agent containing waste beer yeast extract and preparation method of food leavening agent

A technology of beer waste yeast and food fermentation, which is applied in food science and other fields, can solve environmental pollution and other problems, and achieve the effects of simple preparation, long shelf life and excellent effect

Inactive Publication Date: 2021-04-27
青岛迪玛希国际电子商务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many beer companies in our country put waste yeast directly into the environment, causing serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A food starter containing waste beer yeast extract, the food starter is composed of spent beer yeast.

[0026] The above-mentioned preparation method of the food starter containing the waste beer yeast extract comprises the following steps:

[0027] (1) The spent beer yeast was mixed in a sterile aqueous solution containing 7% NaCl, washed and filtered three times at 35°C. The main purpose of the above steps is to separate and remove impurities such as malt husk, rice slag and hop precipitation in the spent beer yeast. Multiple cleaning and filtration also help to remove the odor in the spent beer yeast. (2) Stir the spent beer yeast filtered in step (1) in 7% NaCl sterile aqueous solution at 35°C for 1 hour, and keep ventilation during the stirring process, which is beneficial to the volatilization of alcohol. The main purpose of above-mentioned operation is that the beer flavor in the spent beer yeast is removed in the process of heating and stirring as much as possi...

Embodiment 2

[0029] A food starter containing waste beer yeast extract, the food starter is composed of spent beer yeast.

[0030] The above-mentioned preparation method of the food starter containing the waste beer yeast extract comprises the following steps:

[0031] (1) The spent brewer's yeast was mixed in a sterile aqueous solution containing 7% NaCl, washed and filtered four times at 40°C. The main purpose of the above steps is to separate and remove impurities such as malt husk, rice slag and hop precipitation in the spent beer yeast. Multiple cleaning and filtration also help to remove the odor in the spent beer yeast. (2) Stir the spent beer yeast filtered in step (1) in 7% NaCl sterile aqueous solution at 40° C. for 1.5 h, and keep ventilation during the stirring process to facilitate the volatilization of alcohol. The main purpose of above-mentioned operation is that the beer flavor in the spent beer yeast is removed in the process of heating and stirring as much as possible. ...

Embodiment 3

[0033] A food starter containing waste beer yeast extract, the food starter is composed of spent beer yeast.

[0034] The above-mentioned preparation method of the food starter containing the waste beer yeast extract comprises the following steps:

[0035] (1) The spent brewer's yeast was mixed in a sterile aqueous solution containing 7% NaCl, washed and filtered 5 times at 45°C. The main purpose of the above steps is to separate and remove impurities such as malt husk, rice slag and hop precipitation in the spent beer yeast. Multiple cleaning and filtration also help to remove the odor in the spent beer yeast. (2) Stir the spent beer yeast filtered in step (1) in 7% NaCl sterile aqueous solution at 45°C for 2 hours, and keep ventilation during the stirring process, which is conducive to the volatilization of alcohol. The main purpose of above-mentioned operation is that the beer flavor in the spent beer yeast is removed in the process of heating and stirring as much as possi...

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Abstract

The invention relates to the technical field of food leavening agents, in particular to a food leavening agent containing a waste beer yeast extract and a preparation method of the food leavening agent. The food leavening agent is composed of waste beer yeast. The method comprises the following steps: (1) mixing the waste beer yeast in a sterile aqueous solution containing NaCl, and carrying out washing and filtering for 3-5 times; (2) stirring the waste beer yeast filtered in the step (1) in a NaCl sterile aqueous solution at 35-45 DEG C for 1-2 h; (3) centrifugally separating the mixed solution stirred in the step (2); (4) dissolving the precipitate centrifuged in the step (3) in sterile water, and regulating the pH value to 6-6.5, wherein the adjustment of the pH value to 6-6.5 facilitates the subsequent leavening acceleration; and (5) adjusting the pH value in the step (4), performing centrifugation again, and carrying out vacuum drying to obtain the food leavening agent. The food leavening agent containing the waste beer yeast extract is long in shelf life and excellent in fermentation effect. The food leavening agent containing the waste beer yeast extract is simple to prepare, and the prepared leavening agent is excellent in effect.

Description

technical field [0001] The invention relates to the technical field of food starters, in particular to a food starter containing beer waste yeast extract and a preparation method thereof. Background technique [0002] Fermentation refers to the process in which people use the life activities of microorganisms under aerobic or anaerobic conditions to prepare microbial cells themselves, or direct metabolites or secondary metabolites. It is mainly used in the fields of food industry, biology, and chemical industry. In our daily life, the most contact is to prepare pasta by adding baking powder to flour. But, in actual production process, the used yeast of existing dough fermentation mostly is dry yeast. But the fermentation process of existing dry yeast is relatively slow during the fermentation process, and the fermentation effect of the dough after fermentation is relatively poor compared with the fresh yeast. However, fresh yeast also has its own disadvantages, such as sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L31/15
CPCA23L31/15A23V2002/00
Inventor 刘锋
Owner 青岛迪玛希国际电子商务有限公司
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