JPH01132369A - Degassing of sparkling drink - Google Patents

Abstract

PURPOSE:To completely remove carbon dioxide gas dissolved in a sparkling drink, by passing a sparkling drink containing carbon dioxide gas dissolved in supersaturated state through a filter to remove the most part of carbon dioxide gas and separate bubbles and applying ultrasonic wave to the liquid obtained by the former treatment. CONSTITUTION:In the 1st step, a sparkling drink (e.g., beer) containing carbon dioxide gas dissolved in supersaturated state is passed through a filter 2 to separate the liquid B1 from the bubble B2 and remove most part of the carbon dioxide gas. In the 2nd step, the liquid separated from the bubble by the 1st step is irradiated with ultrasonic wave by an ultrasonic oscillator 11 of an ultrasonic generator 10 to remove the residual carbon dioxide gas in the liquid. The carbon dioxide gas in the sparkling drink can be completely removed by this process.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field This invention relates to a method for degassing sparkling beverages such as beer.

(2) Conventional technology As a sparkling beverage, for example, when beer after the expiration date (referred to as waste beer) is used and vinegar is made from it,
Since it is undesirable if carbon dioxide gas is dissolved in the acetic acid fermentation liquor, it is necessary to remove in advance the carbon dioxide gas dissolved in the beer in a supersaturated state of about 2.5 times.

Conventionally, filters have been used exclusively to remove carbon dioxide gas as described above, and by passing beer in a supersaturated state of dissolved carbon dioxide gas through the filter, the beer is separated into liquid and foam and removed. There is.

(3) Problems to be solved by the invention By the way, in the case of the conventional method using only a filter, most of the carbon dioxide gas can be removed from beer, but it cannot be completely removed. However, there was a problem in that it was not possible to obtain satisfactory results.

Therefore, the technical object of the present invention is to completely remove carbon dioxide contained in sparkling beverages such as beer.

(4) Means for Solving the Problems In order to achieve the above technical problem, this invention is characterized by comprising the following two steps.J) Carbon dioxide gas is dissolved in a supersaturated state. A first step of separating the sparkling beverage into liquid and foam by passing it through a filter and removing most of the carbon dioxide; 5) applying ultrasound to the liquid separated from the foam in the first step;
2nd step of removing residual carbon dioxide in the liquid; (5) Action: The liquid of the sparkling beverage that has gone through the 1st step is further subjected to ultrasonic waves in the 2nd step, and this ultrasonic wave removes the residual carbon dioxide in the liquid. , carbon dioxide gas is completely removed.

(6) Example This example was applied to remove carbon dioxide gas contained in beer when making vinegar from waste beer. Indicates a device that performs

Reference numeral 1 denotes a tank into which waste beer is put, and a Vinylock filter 2 (manufactured by Kanto Sanki Co., Ltd.) for filtration is installed at the top. A discharge port 5 having an on-off valve h is provided at the bottom of the tank 1, and a liquid feeding pipe 8 in which a pump 7 is installed is provided between the discharge port 5 and the upper opening of another tank 6. In the tank 6, beer liquid B1, which is separated from the beer foam B2 in the tank 1 and stored in the lower part, is sent through a pipe 8 by a pump 7 and is injected into the tank. The ultrasonic oscillator 11 of the ultrasonic generator 1O installed outside of the ultrasonic generator 6 is immersed by hanging down.

The function of removing carbon dioxide gas from waste beer in such an apparatus will be explained next.

First, as shown in FIG. 1, waste beer contained in a large number of beer bottles is poured into a tank 1. The input waste beer passes through the vinyl lock filter 2 and is stored below the tank 1, but at this time, most of the carbon dioxide is removed by the filter 2, and the beer liquid B
□ (including liquid foam) and beer foam B2.

Next, when the valve 3 is opened and the pump 7 is operated, the beer liquid B1 in which carbon dioxide gas still remains in the tank 1 is introduced into the tank 6 via the pipe 8. When the beer liquid B□ put into the tank 6 reaches a predetermined amount, the ultrasonic generator 10 is activated, and an ultrasonic wave is applied to the beer liquid B1 from the oscillator 11. As a result of the rise of fine carbon dioxide gas bubbles causing convection, residual carbon dioxide gas in the liquid is completely removed.

Then, the beer liquid B from which carbon dioxide gas has been completely removed,
By opening the valve 12 provided at the bottom of the tank 6, the acetic acid is discharged from the tank 6 through the outlet 13 and used as an acetic acid fermentation liquid.

In this embodiment, pump 7 was used to transfer beer liquid B1 from tank 1 to tank 6, but this was because both tanks were placed side by side, and tank 1 was installed above tank 6. However, if the beer liquid B□ in the tank 1 is transferred into the tank 6 by falling by gravity, the pump 7 may not be used.

Furthermore, in the examples, beer was cited as an example of a sparkling beverage, but this is merely an example, and it goes without saying that this method can be applied to sparkling beverages other than beer.

(7) Effects of the Invention This invention is as described above, and in the second step, ultrasonic waves are applied to the liquid separated from the bubbles in the first step using a filter to remove residual carbon dioxide gas in the liquid. As a result, carbon dioxide contained in sparkling beverages can be removed more completely than the conventional filter-only method, and therefore, the sparkling beverage from which carbon dioxide has been removed by this invention can be used as an acetic acid fermentation liquid. It is also effective in obtaining sufficiently satisfactory results.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an apparatus showing an embodiment of the present invention. ■, 6 Tank 2 Vinylok filter 3 Valve 5 Discharge port A Pump 8 Liquid sending pipe

Claims (1)

[Claims] 1. A first step in which a sparkling beverage in which carbon dioxide is dissolved in a supersaturated state is passed through a filter to separate it into liquid and foam, and most of the carbon dioxide is removed; A method for degassing a sparkling beverage, comprising a second step of applying ultrasonic waves to the separated liquid to remove residual carbon dioxide from the liquid.