JPS58146234A - Removal of astringency from astringent persimmon - Google Patents

Abstract

PURPOSE:To remove astringency from astringent persimmons, uniformly, in a short time, by substituting the air in a vessel containing astringent persimmon with carbon dioxide gas, and circulating the carbon dioxide gas in the vessel optionally introducing vaporized alcohol to the gas. CONSTITUTION:The astringent persimmon 2 to be sweetened is put into the vessel 1, and the vessel 1 is closed. The air in the vessel 1 is substituted with carbon dioxide gas, and the circulation fan 8 is operated to circulate the carbon dioxide gas in the vessel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for removing astringency from astringent persimmons, and is characterized in that the astringency can be removed uniformly while using less alcohol.

Conventionally, methods for removing astringency from astringent persimmons have been widely adopted, for example, as shown in FIG. are housed in a layered manner with partitions c, c, etc. made of wooden wire etc. interposed in 1 to 1. In fact, yC tied the opening of bag a, put it in a backing case (not shown), etc., and shipped it to the market. , this method (1)
It takes 0.15 days and 8 degrees, and the expiry date of the backing case must be clearly indicated.

In the above-mentioned method for removing astringency, the amount of dry ice and alcohol added to a certain amount of astringent persimmons tends to be uneven, which naturally results in uneven removal of astringency, especially at the bottom of the bag, which is always soaked in alcohol. The unevenness of the astringency between persimmons and unsoaked persimmons is striking, and
Persimmons that had been soaked in alcohol had a high rate of decline in product prices. Furthermore, in this method, considering that the harvest period for astringent persimmons is short, the removal of astringency must be done quickly and skillfully, and therefore, the amount of persimmons must be reduced.

The amounts of dry ice and alcohol fluctuate, leading to problems such as uneven removal of astringency and an increase in the number of defective products.

This invention was developed with the intention of solving the above problem, and after replacing the air in the container containing the astringent persimmons to be removed with carbon dioxide gas, the carbon dioxide gas in the container alone or vaporized. This invention attempts to provide a method for removing astringency from astringent persimmons, which is characterized by the fact that by adding alcohol and circulating it, the astringency can be removed uniformly and in a short period of time (5).

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 2 is a schematic diagram showing the principle of the astringency removal method of the present invention. A gridiron 3 is laid down, and its upper opening [a] is sealed by a lid 5. A circulation pipe 7 is connected to the bottom space 4 and the upper space 6, respectively, and a circulation fan 8 disposed in the circulation pipe 7 circulates the carbon dioxide gas in the container l. There are many people.

Next, to explain the method for removing astringency of the present invention, first, the astringent persimmons 2.2... to be removed are placed in the container L, and the container L is sealed. After replacing the air with carbon dioxide gas, the circulation fan 8 is operated to circulate the carbon dioxide gas in the container l, thereby removing the astringency of the astringent persimmons stored in the container l uniformly in a short period of time. It is possible to be reluctant. In this case, the astringent persimmons to be de-astringent are stored in advance under conditions such as a nitrogen atmosphere, an internal temperature of around 0°C, and an internal humidity of 95% or more (in terms of absolute humidity). If stored, astringent persimmons can be stored and maintained for approximately 25 months to 3 months without losing their commercial value. Figure 3 is a schematic diagram showing an apparatus for carrying out this invention. This shows the case where the astringency is removed at the same time. That is, similarly to the above, a plurality of astringent persimmons 2.2... are placed in stacked containers 9.9... with air permeability inside the processing/storage warehouse 10, which is a large container. After replacing the air in the warehouse 10 with carbon dioxide gas, the circulation fan 8 in the circulation pipe 7 connected to the warehouse 10 is operated to circulate the carbon dioxide gas in the warehouse, thereby simultaneously removing the astringency from a large amount of astringent persimmons. This is a case where it is designed so that it can be performed. In this case, processing and storage warehouse 1 Ovc cooling device 11, humidification device 1
2 and the astringent removal period If the heating device 13 for the splinters is installed in the warehouse 10, for example, the interior of the warehouse 1 is kept in a nitrogen atmosphere (oxygen concentration of 3 or less), and at the same time the temperature is kept at a low temperature. By blowing under high humidity and high humidity, astringent persimmons before astringency removal can be stored for a long period of time without deteriorating their quality. If the astringent persimmons are circulated, the astringent persimmons 2, 2, etc. can be stored and removed in a rational manner. If you are equipped with a temperature controller 14 to adjust the temperature inside Warehouse 1.

When storing astringent persimmons 2, 2, etc., adjust the temperature to an appropriate low temperature to enable long-term storage of astringent persimmons. Astringent persimmon 2
．． 2. It is possible to perform optimal astringency removal according to the amount and type of...

FIGS. 4 and 5 show a method of mixing vaporized alcohol into the gas circulated through the circulation pipe 7, and the portions corresponding to those in FIGS. are given the same reference numerals and their explanation will be omitted, but in these cases, a cleaning container 16 containing alcohol (9) 15 is disposed in the circulation pipe 7 after the circulation pump 8, and After replacing the air in the container 1 with carbon dioxide gas, the circulation fan 8
is operated to vaporize the alcohol 15 in the cleaning container 16 and circulate the gas in the container l, thereby removing the astringency from the astringent persimmons 2, 2, and so on. In this case, the astringent persimmons to be de-astringent in advance are prepared by using a nitrogen atmosphere in the refrigerator, for example, when the temperature inside the refrigerator is around 1℃ and the humidity inside the refrigerator is
If stored under conditions of 5% or higher (in terms of absolute humidity), astringent persimmons can be stored and maintained for about 25 to 3 months without losing their commercial value.

In particular, FIG. 5 shows a case in which a relatively large amount of astringent persimmons 2.2.. is removed at the same time.
2. Container 9 with air permeability containing 2... in a laminated form,
9... are stacked in a processing/storage warehouse 10 which is a large container (B+) 1~, and after the air in this warehouse H1 is replaced with carbon dioxide scum 1-, a circulation pipe 7 is connected to this warehouse 10. Due to the operation π of the circulation fan 8 inside, the alcohol 15 in the cleaning container 16 is vaporized and mixed with carbon dioxide gas in the refrigerator, and is stored in each container 9 by circulating inside the refrigerator. Astringent persimmon 2.2
...is simultaneously removed. In this case, in a steady state, a mixture of carbon dioxide gas and alcohol gas circulates in the chamber, so there is little alcohol consumption, and the type of alcohol is not limited to 35 alcohol, but any ethyl alcohol. However, it can be used, and the cost effectiveness is also significant.

In addition, in the warehouse] 0, for example, if the processing and storage warehouse 10 is equipped with a cooling device 11, a humidifying device 12, and a heating device 13 for adjusting the astringency removal period, By keeping the interior in a nitrogen atmosphere (oxygen yield less than 3%) and at the same time under 1 degree of low dirt and high humidity, astringent persimmons before astringency removal can be stored for a long period of time without deteriorating their quality. When removing astringency, the air in the warehouse 10 is replaced with carbon dioxide 17 and the alcohol is circulated while vaporizing as described above, thereby storing and removing astringency of astringent persimmons 2, 2, etc. in the same container, i.e., warehouse]0 In addition, if the warehouse 10 is equipped with a hot spring controller 14 to adjust the temperature, the temperature can be adjusted to an appropriate low temperature when storing astringent persimmons 2.2. The astringent persimmons 2, 2, etc. can be stored for a long period of time without deteriorating their quality. Optimal astringency removal can be performed depending on the amount and type.

As explained above, the method for removing astringency of the present invention includes the following steps: 1. After storing the astringent persimmons to be removed from the astringent container, the air in the container is replaced with carbon dioxide gas, and then this gas itself or alcohol is vaporized into it. By circulating the inside of the container while removing the astringency, it is possible to remove the astringency from a large amount of astringent persimmons at the same time in a short period of time, and it is also possible to remove the astringency from the whole product uniformly, which is an excellent effect. The value is outstanding.

The astringent-removed persimmons obtained by the astringent-removal method of the present invention had better results in taste tests, pulp hardness tests, shelf life tests, etc. than those obtained by the conventional method.

(]3)

[Brief explanation of the drawing]

= Figure 1 is a schematic sectional view showing the conventional astringency removal method, Figure 2 is a schematic sectional view showing the principle of the astringency removal method of the present invention, Figure 3 is a sectional view of the implementation device, and Figure 4 d'' This This is a schematic sectional view showing the principle of another astringency removal method according to the invention, and Fig. 5 is a sectional view of an apparatus for implementing the same. (1 container (processing and storage warehouse) l] Cooling device (14) ]2 Humidifying device 13 Warming device 14 Temperature controller 15 Alcohol] 6 Cleaning container patent applicant Nippon Light Metal Co., Ltd. (] 5) Figure 1 Figure 2 t+5 Figure 3 Figure 4 Figure 5 Procedural amendment (voluntary) August 5, 1980 Mr. Kazuo Wakasugi, Commissioner of the Patent Office ■, Indication of the case 1982 Patent Application No. 28139 2, Name of the invention Shibugaki 3. Relationship with the case of the person making the amendment Patent applicant (474) Name Nippon Light Metal Co., Ltd. 6 Contents of the amendment (as attached) (6. Contents of the amendment) l) Patent claim in the specification The range (from page 1, line 5 to page 3, line 6) has been corrected as follows: ``1. Replacement of the air in the container containing the astringent persimmons to be removed with carbon dioxide - Comforting A -yy (1) A method for removing astringency from astringent persimmons, which is characterized in that the astringency is removed by circulating the gas in the container after rinsing.2. The method for removing astringency from astringent persimmons according to claim 1, which comprises storing the astringent persimmons in an atmosphere at low temperature and high humidity for a period of time and then subjecting the astringent persimmons to the astringent removal process. 3. Temperature in the container. The method for removing astringency from astringent persimmons according to claim 1, which comprises rolling persimmons into a condenser at an appropriate temperature to remove astringency.4. A method for removing astringency from astringent persimmons according to claim 2, which comprises controlling the temperature and storing the astringent persimmons for a certain period of time. 5. Replacing the air in the container containing the astringent persimmons to be removed with carbon dioxide gas. Alternatively, after replacing the astringent persimmon, the astringent persimmon is removed by circulating the gas in the container while vaporizing the alcohol. 6. The astringent persimmon to be removed from the astringent astringency. The astringency removal method according to claim 5, which comprises storing the astringent in advance in a nitrogen atmosphere at low temperature and high humidity for a certain period of time, and then subjecting it to astringency removal. 7. Temperature in the container. The method for removing astringency from astringent persimmons according to claim 5, which comprises controlling the temperature of persimmons to remove astringency. 8. The method for removing astringency from astringent persimmons according to claim 6, which comprises controlling the temperature in the storage of the astringent persimmons to be appropriately controlled and storing the astringent persimmons for a certain period of time. ” 1-2) “Main line” on page 3, line 15 was corrected as follows and “cotton” 3) The following was added between “replacement” and “after shida” on page 5, line 12. 4) On page 6, between lines 14 and 15, the following is added: ``The carbon dioxide gas connected to the carbon dioxide gas cylinder 9 to create a carbon dioxide atmosphere in the container 1'' A supply pipe 10 is opened to the container 1, and 11 is this carbon dioxide gas supply pipe 10.
This is an on-off valve installed inside. Note that 12 is an exhaust valve attached to an exhaust pipe 13 led out from the container 1. 5) In the 3rd line of page 7, ``After the air...'' was corrected as follows: 6) On page 8, line 4, ``after replacing'' was corrected as follows [Same as in the above-mentioned principle method (illustrated in Figure 2)] 7) On page 10, line 2, "after replacing," was corrected as follows: "While or after replacing with carbon dioxide," 8) Page 11. In the second line, "after replacing," was corrected as follows: "While or after replacing," 9) On page 13, line 6, between "with carbon dioxide gas" and "after replacing," 10) In the 4th line of page 14, add the following between ``of the device'' and ``sectional view'' and add ``approximately vertical'' 11) In the 6th line of the same page Add the following between ``of the device'' and ``cross section'' and ``approximately vertical'' = 4 - Correct the inscriptions ``2nd'' to ``Figure 5'' in the drawings as shown in the attached sheet. 5- ○ ■ U ω Procedural amendment band (master) April 5, 1980 Patent Office Official 4 Sugi @] i # i, week 1, case indication 1982 Patent Application No. 28139 2, title of the invention How to remove astringency from astringent persimmons 3, relationship with the case of the person making the amendment Patent applicant (474) Name Nippon Light Metal Co., Ltd. 4, Agent (as attached) (6. Contents of amendment) Part 1) No. 6 of the group of specifications In lines 14 and 15 of the page, "It's large. ・If necessary," was corrected as follows: "It's a dog. Connected to the carbon dioxide gas cylinder 17 to create a carbon dioxide atmosphere inside the container 1." The carbon dioxide gas supply pipe 18 is opened into the container 1, and 19 is connected to this carbon dioxide gas supply pipe 18.
This is the opening/closing button ↑ that was taken inside. Note that 20 is container 1
This is an exhaust valve installed in the exhaust pipe 21 led out from the exhaust pipe 21. 2) On page 7, line 3, ``inside container 1/above'' should be corrected as follows: ``Carbon dioxide is supplied from the carbon dioxide cylinder 17 to the carbon dioxide gas supply pipe 18 into the container 1.'' While or after replacing the air in the container 1 with carbon dioxide gas by supplying gas, ``Figure 2'' to ``Figure 5'' in the above drawings are corrected as shown in the attached sheet. 2- O■

Claims (1)

[Claims] ■ The astringency is removed by replacing the air in the container containing the astringent persimmons to be removed with carbon dioxide gas and then circulating the gas in the container. How to remove astringency from astringent persimmons. 2. The astringent persimmon according to claim 1, wherein the astringent persimmon to be removed is stored in advance in a nitrogen atmosphere at low temperature and high humidity for a certain period of time, and then subjected to astringency removal. How to get rid of bitterness. 3. The method for removing astringency from astringent persimmons according to claim 1, which comprises the steps of 1 to 3, controlling the temperature in the container to an appropriate temperature to remove astringency. 4. The method for removing astringency from astringent persimmons according to claim 2, which comprises storing the astringent persimmons for a certain period of time while appropriately controlling the temperature in the storage of the astringent persimmons to be removed. 5. Store the astringent persimmons to be removed. 1. During or after replacing the air in the container with carbon dioxide gas, the astringent persimmons are removed by circulating the gas in the container while vaporizing the alcohol. A method for removing astringency from astringent persimmons. 6. The method for removing astringency according to claim 5, wherein the astringent persimmons to be astringent are stored in advance in a nitrogen atmosphere at low temperature and high humidity for a certain period of time, and then subjected to astringency removal. 7. The method for removing astringency from astringent persimmons according to claim 5, which comprises controlling the temperature in the container to an appropriate temperature to remove astringency. 8. The method for removing astringency from astringent persimmons according to claim 6, wherein the temperature in the storage of the astringent persimmons to be removed is appropriately controlled to a temperature e and stored for a certain period of time.