TWI659695B - Litchi fruit processing device and using method thereof - Google Patents

Abstract

A lychee fruit processing device includes a base and a processing tank; a grid frame provided in the processing tank; a cooling pipe disposed on the net frame and located in the processing tank; a cooling water machine Is connected to the cooling pipe for cooling the liquid in the cooling pipe; a hydrochloric acid solution is placed in the processing tank; and a chitin is placed in the hydrochloric acid solution. The method of use is: 1. Turn on the cooling water machine and cool the liquid in the cooling pipeline, so that the temperature of the mixed solution of hydrochloric acid and chitin drops below 10 ° C; 2. Soak the litchi fruit into the hydrochloric acid and chitin Within 10 minutes of the mixed solution; 3. Take out the litchi fruit from the mixed solution of hydrochloric acid and chitin. This has the effect of reducing browning and dehydration of litchi fruit.

Description

Litchi fruit processing device and using method thereof

The invention relates to fruit processing, in particular to a litchi fruit processing device and a method for using the same, which are used to reduce browning and dehydration of litchi fruit.

Litchi is a common fruit in the subtropics and a summer fruit familiar to Taiwanese. In Taiwan, litchi is mainly produced in Nantou, Taitung, Taichung, and Kaohsiung. Its sales are mainly domestic sales, supplemented by foreign sales. In terms of sales, the gross profit of exported lychees is higher than the gross profit of domestic sales. Therefore, if the export activities of litchi can be strengthened, the income of farmers can be increased. At present, the export markets of Taiwan litchi are Japan, South Korea, Singapore, the United States and Canada. The delivery time of litchi is about one week to Japan and South Korea, and about three weeks to the United States.

However, after the harvest of litchi fruit, the peel will continue to brown and lose water rapidly during the transportation process, resulting in loss of flavor and poor selling of litchi fruit, reducing the willingness of consumers to buy and hindering the export of litchi Expansion. Therefore, how to treat litchi fruit to reduce browning and water loss is a very important subject.

The main object of the present invention is to provide a litchi fruit processing device and a method for using the litchi fruit, which can produce the effects of reducing browning and dehydration of litchi fruit.

The reason is that a litchi fruit processing device provided according to the present invention includes: a base having a processing tank; a grid frame disposed in the processing tank; a section of cooling pipelines disposed on the net frame, Located in the processing tank; a cooling water machine connected to the cooling pipeline for cooling the liquid in the cooling pipeline; a hydrochloric acid solution is placed in the processing tank; and a chitin is placed in the hydrochloric acid solution. This has the effect of reducing browning and dehydration of litchi fruit.

The lychee fruit processing device can further include a circulation motor, which is connected to a circulation pipeline, which is connected to the processing tank, and the liquid in the processing tank is extracted from the processing tank and then injected into the processing tank. . The mixed solution of the hydrochloric acid and chitin in the processing tank can have a uniform solution temperature.

In addition, in order to obtain a better effect, the pH value of the hydrochloric acid solution is less than 4. Alternatively, the equivalent concentration of the hydrochloric acid solution is set to 1. In addition, the weight percentage of the chitin in the hydrochloric acid solution is 0.1% to 0.2%.

Furthermore, a method for using a litchi fruit processing device provided by the present invention is to use a litchi fruit processing device. The litchi fruit processing device includes a base with a processing tank, and a grid frame disposed in the processing tank. A section of cooling pipeline is set on the grid frame and located in the processing tank; a cooling water machine is connected to the cooling pipeline to cool the liquid in the cooling pipeline; a hydrochloric acid solution is placed in the processing tank And a chitin, which is placed in the hydrochloric acid solution; the method of using the litchi fruit processing device includes the following steps: 1. Turn on the cooling water machine and cool the liquid in the cooling pipeline so that the mixed solution of hydrochloric acid and chitin The temperature dropped below 15 ° C; 2. Litchi fruit was soaked in the mixed solution of hydrochloric acid and chitin within 10 minutes; 3. Litchi fruit was taken out of the mixed solution of hydrochloric acid and chitin.

11‧‧‧ base

111‧‧‧ treatment tank

12‧‧‧ net rack

13‧‧‧cooling pipeline

14‧‧‧cooling water machine

15‧‧‧ hydrochloric acid solution

16‧‧‧chitin

17‧‧‧ circulation motor

18‧‧‧Circulation pipeline

FIG. 1 is a schematic perspective view of a first embodiment of the present invention.

Figure 2 is a schematic diagram of the implementation of the second embodiment of the present invention.

In order to explain the technical features of the present invention in detail, the following first embodiment will be described with reference to the drawings, wherein: as shown in FIG. 1, a litchi fruit processing device provided by a preferred embodiment of the present invention It includes: a base 11, a grid 12, a section of cooling pipeline 13, a cooling water machine 14, a hydrochloric acid solution 15 and a chitin 16.

The base 11 has a processing tank 111, and the processing tank 111 is filled with a solution or a litchi fruit. The base 11 is made of stainless steel or plastic, and is used to prevent the processing tank 111 from being rapidly damaged by acid etching when the acid is contained in the processing tank 111.

The net frame 12 is disposed in the processing tank 111 and is used for litchi fruit placed on the net frame 111 during loading operation.

The cooling pipeline 13 is disposed on the grid frame 12 and is located in the processing tank 111. In this implementation, the cooling pipe 13 is coiled under the grid frame 12 so that the area of the cooling pipe 13 in the processing tank 111 can be as large as possible, and is used to quickly reduce the temperature in the processing tank 111. It is worth mentioning that the cooling pipe 13 is made of stainless steel, which is used to resist acid corrosion in the acid solution and maintain good thermal conductivity.

The chiller 14 (chiller), the inlet and the outlet are connected to the two ends of the cooling pipe 13 respectively. After the temperature of the liquid in the cooling pipe 13 is reduced, it flows into the cooling pipe 13 located in the processing tank 111 to reduce the The temperature in the processing tank 111.

The hydrochloric acid solution 15 is placed in the processing tank 111. It is worth mentioning that, in this embodiment, the equivalent concentration of the hydrochloric acid solution 15 is 1, or the acid-base value of the hydrochloric acid solution 15 may be less than 4.

Finally, put the chitin 16 into the hydrochloric acid solution 15. In this embodiment, the weight percentage of the chitin 16 in the hydrochloric acid solution 15 is 0.1% to 0.2%.

With the above device, after soaking the litchi fruit in the mixed solution of hydrochloric acid 15 and chitin 16, it can produce the effects of reducing browning and dehydration of litchi fruit.

It is worth mentioning that in this embodiment, a circulation motor 17 is further included. The circulation motor 17 is connected to a section of circulation pipeline 18, and the circulation pipeline 18 communicates with the processing tank 111, and the liquid in the processing tank 111 is removed. After the processing tank 111 is injected into the processing tank 111 to form a cycle, the mixed solution of the hydrochloric acid 15 and chitin 16 in the processing tank 111 can be uniform in temperature.

As shown in FIG. 2, the second embodiment of the present invention is introduced next, and a method for using a litchi fruit processing device is provided, which is applied to the aforementioned litchi fruit processing device. The method of using the litchi fruit processing device includes the following steps: 1. Turn on the cooling water machine 14 and cool the liquid in the cooling pipe 13 so that the temperature of the mixed solution of the hydrochloric acid 15 and chitin 16 drops below 15 ° C; 3. Soak litchi fruit into the mixed solution of hydrochloric acid 15 and chitin 16; take out litchi fruit from the mixed solution of hydrochloric acid 15 and chitin 16 within three or ten minutes.

After the litchi fruit is treated through the above steps, the low pH environment of the hydrochloric acid solution 15 can stabilize anthocyanins and reduce the browning of the litchi fruit. Furthermore, because chitin 16 forms a film after coating the surface of litchi fruit, water loss is reduced.

It can be known from the foregoing that the device and method provided by the present invention can produce the effects of reducing browning and dehydration of litchi fruit.

Claims (4)

A lychee fruit processing device includes: a base with a processing tank; a grid frame disposed in the processing tank; a cooling pipe disposed in the mesh frame in the processing tank and the cooling pipeline Coiled under the grid; a cooling water machine connected to the cooling pipe to cool the liquid in the cooling pipe; a hydrochloric acid solution is placed in the processing tank; a chitin is placed in the hydrochloric acid solution; a A circulation motor, which is connected to a section of circulation pipeline, which is connected to the treatment tank, and the liquid in the treatment tank is evacuated from the treatment tank and then injected into the treatment tank; and the chitin is in the hydrochloric acid solution The weight percentage is 0.1% to 0.2%. The litchi fruit processing device according to the first patent application scope, wherein the pH value of the hydrochloric acid solution is less than 4. The litchi fruit processing device according to the first patent application scope, wherein the equivalent concentration of the hydrochloric acid solution is 1. A method for using a lychee fruit processing device is used in a lychee fruit processing device. The lychee fruit processing device includes a base and a processing tank; a grid frame is disposed in the processing tank; a section of cooling pipeline is provided. On the grid frame, located in the processing tank; a cooling water machine connected to the cooling pipeline for cooling the liquid in the cooling pipeline; a hydrochloric acid solution is placed in the processing tank; and a chitin is placed in the processing tank; The method of using the litchi fruit processing device includes the following steps: 1. Turn on the cooling water machine and cool the liquid in the cooling pipeline, so that the temperature of the mixed solution of hydrochloric acid and chitin drops below 15 ° C; 2. Soak litchi fruit into the mixed solution of hydrochloric acid and chitin within 10 minutes; 3. Take out litchi fruit from the mixed solution of hydrochloric acid and chitin.