A non-reduced fruit juice aseptic concentration process

Abstract

The invention discloses a non-reduced fruit juice aseptic concentration process, which comprises: S1, raw material processing, washing the raw material, drying it, using a core remover to remove the core, and cutting it into pieces; S2, putting the cut juice into a juice extractor, adding pure water after the juice extractor has worked for a period of time, filtering the pomace after continuing to work for a period of time, and obtaining preliminary juice; S3, sterilizing and cooling the preliminary juice by a sterilizing device and a cooling device; S4, after a U-shaped tube passes through the cooling device, it is passed into a fruit juice concentration device, and after a period of time, concentrated juice is obtained, and passes through a plurality of swirl grooves inside the U-shaped tubes, and the swirl grooves between adjacent ones are in opposite directions. When the output power of the conveying device is fixed, the swirl grooves in opposite directions will reduce the flow rate in the tube, thereby increasing the sterilization efficiency. At the same time, the swirl grooves in opposite directions will destroy the stability of the flow of the juice, so that the juice will tumble inside the U-shaped tube, thereby ensuring the sterilization effect.

Description

Technical Field

[0001] The invention relates to the technical field of concentration technology, in particular to an aseptic concentration process for non-reduced fruit juice. Background Art

[0002] Concentrated juice is made by evaporating part of the water by low-temperature vacuum concentration after squeezing the fruit into the original juice. When preparing 100% juice, the same amount of water as the natural water lost in the concentration process must be restored in the concentrated juice raw materials to make products with the color, flavor and soluble solid content of the original fruit pulp. Concentrated juice contains a lot of dietary fiber. Fruit cellulose is the main component of plant cell walls. It is not a nutrient, but after being ingested by the human body, it absorbs water and swells, absorbs harmful ingredients in food, stimulates gastrointestinal peristalsis, helps digestion, speeds up excretion in the body, shortens the time that harmful substances stay in the body, and ultimately achieves the purpose of preventing gastrointestinal diseases. It has a positive significance for preventing digestive tract cancer. Cellulose is also called the seventh nutrient after protein, carbohydrates, fat, inorganic salts, vitamins and trace elements by nutritionists.

[0003] The existing non-reduced fruit juice aseptic concentration process mostly sterilizes the fruit juice by low temperature or high temperature. However, this method can easily destroy the nutrients in the fruit juice during use and cause problems such as poor taste. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a non-reduced fruit juice aseptic concentration process, through a plurality of swirl grooves inside a U-shaped tube, and the swirl grooves between adjacent directions are opposite, when the output power of the conveying device is fixed, the swirl grooves in opposite directions will reduce the flow rate in the tube, thereby increasing the sterilization efficiency. At the same time, the swirl grooves in opposite directions will destroy the stability of the juice flow, thereby causing the juice to churn inside the U-shaped tube, thereby ensuring the sterilization effect.

[0005] The present invention also provides a non-reduced fruit juice aseptic concentration process, comprising the following steps:

[0006] S1, raw material processing, washing the raw materials, drying them, using a core remover to remove the cores, and cutting them into pieces;

[0007] S2, putting the cut juice into a juicer, adding pure water after the juicer has worked for a period of time, and filtering the pomace after the juicer has worked for a period of time to obtain preliminary juice;

[0008] S3, sterilizing and cooling the preliminary juice by a sterilizing device and a cooling device, wherein the sterilizing device comprises: a U-shaped tube, wherein a plurality of U-shaped tubes are provided, and each U-shaped tube is interconnected, wherein a conveying device is provided on the U-shaped tube, and an ultraviolet light strip is wound around the outer surface of the U-shaped tube; wherein the cooling device comprises: a cooling water tank, wherein the U-shaped tube is located inside the cooling water tank, and a refrigeration plate is provided on the inner bottom surface of the cooling water tank; wherein a swirl groove is provided inside the U-shaped tube, and two adjacent swirl grooves are in opposite directions, and the irradiation surface of the ultraviolet light strip is in contact with the outer wall of the U-shaped tube;

[0009] S4. After passing through the cooling device, the U-shaped tube is passed into the juice concentration equipment, and after a period of time, concentrated juice is obtained.

[0010] According to a non-reduced fruit juice aseptic concentration process provided by the present invention, the conveying device is specifically a liquid pump and an air pump, and the output ends of the liquid pump and the air pump are both connected to the U-shaped tube.

[0011] According to a non-reduced fruit juice aseptic concentration process provided by the present invention, one-way valves are provided at the connections between the liquid pump, the air pump and the U-shaped tube.

[0012] According to a non-reduced fruit juice aseptic concentration process provided by the present invention, the input end of the liquid pump is connected to the U-shaped tube, and the input end of the air pump is fixedly connected to a sterilization and dust removal box.

[0013] According to a non-reduced fruit juice aseptic concentration process provided by the present invention, the sterilization and dust removal box comprises: a box body, and a plurality of filters and strong light ultraviolet lamps are fixedly connected to the inner surface of the box body.

[0014] According to a non-reduced fruit juice aseptic concentration process provided by the present invention, the juice extractor in S2 works for a period of time specifically 15-30 minutes.

[0015] According to a non-reduced fruit juice aseptic concentration process provided by the present invention, the step of continuing to work for a period of time in S2 is specifically 5-10 minutes.

[0016] According to a non-reduced fruit juice aseptic concentration process provided by the present invention, the period of time in S4 is specifically 4-6 hours.

[0017] Compared with the prior art, the non-reduced juice aseptic concentration process passes through multiple swirl grooves inside U-shaped tubes, and the adjacent swirl grooves are in opposite directions. When the output power of the conveying device is fixed, the swirl grooves in opposite directions will reduce the flow rate in the tube, thereby increasing the sterilization efficiency. At the same time, the swirl grooves in opposite directions will destroy the stability of the juice flow, thereby causing the juice to churn inside the U-shaped tube, thereby ensuring the sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 This is a flow chart of the aseptic concentration process of non-reduced fruit juice of the present invention;

[0020] Figure 2 It is the overall structure diagram of the sterilization and cooling device of the aseptic concentration process of non-reduced fruit juice of the present invention;

[0021] Figure 3 It is a cross-sectional structural diagram of a sterilization and cooling device for the aseptic concentration process of non-reduced fruit juice of the present invention;

[0022] Figure 4 The invention relates to a non-reduced fruit juice aseptic concentration process. Figure 3 Enlarged view of point B in the middle;

[0023] Figure 5 It is a cross-sectional view of adjacent U-shaped tubes in the aseptic concentration process of non-reduced fruit juice of the present invention.

[0024] Legend:

[0025] 1. U-shaped tube; 2. UV light strip; 3. Cooling water tank; 4. Refrigeration plate; 5. Cyclone tank; 6. Liquid pump; 7. Air pump; 8. Sterilization and dust removal box; 801. Box body; 802. Filter; 803. Strong UV spotlight. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0027] Reference Figure 1-5 The present invention provides a non-reduced fruit juice aseptic concentration process, which comprises the following steps:

[0028] S1, raw material processing, washing the raw materials, drying them, using a core remover to remove the cores, and cutting them into pieces;

[0029] S2. Put the cut juice into a juicer. After the juicer works for 15-30 minutes, add pure water. After the juicer works for 5-10 minutes, filter the pomace to obtain preliminary juice.

[0030] S3, sterilize and cool the preliminary juice by a sterilizing device and a cooling device, the sterilizing device comprises: a U-shaped tube 1, a plurality of U-shaped tubes 1 are provided, and each U-shaped tube 1 is interconnected, a conveying device is provided on the U-shaped tube 1, and the conveying device is specifically a liquid pump 6 and an air pump 7, the output ends of the liquid pump 6 and the air pump 7 are both connected to the U-shaped tube 1, and a one-way valve is provided at the connection between the liquid pump 6, the air pump 7 and the U-shaped tube 1, the input end of the liquid pump 6 is connected to the U-shaped tube 1, and the input end of the air pump 7 is fixedly connected to a sterilization and dust removal box 8, and the sterilization and dust removal box 8 comprises: a box body 801, a plurality of filters 802 and a strong light ultraviolet spotlight 803 are fixedly connected to the inner surface of the box body 801, and an ultraviolet light belt 2 is wound around the outer surface of the U-shaped tube 1;

[0031] The cooling device comprises: a cooling water tank 3, a U-shaped tube 1 is located inside the cooling water tank 3, and a refrigeration plate 4 is arranged on the inner bottom surface of the cooling water tank 3;

[0032] The U-shaped tube 1 is provided with a swirl groove 5 inside, and two adjacent swirl grooves 5 are in opposite directions, and the irradiation surface of the ultraviolet light strip 2 is in contact with the outer wall of the U-shaped tube 1;

[0033] S4. After passing through the cooling device, the U-shaped tube 1 is passed into the juice concentration equipment, and concentrated juice is obtained after 4-6 hours.

[0034] The pipeline composed of multiple U-shaped tubes 1 has half of its total length located inside the cooling water tank 3, and the other half is exposed outside the cooling water tank 3. The ultraviolet light strip 2 is wrapped around the U-shaped tube 1 outside the cooling water tank 3. A sealing ring is provided at the connection between the U-shaped tube 1 and the cooling water tank 3 to prevent leakage of the internal cooling water. When conveying fruit juice, the liquid pump 6 provides power for the fruit juice. When the conveying is completed, the air pump 7 is started, and the air pump 7 blows away the juice attached to the inner surface of the pipeline, and then cleans the pipeline. After the cleaning is completed, the inside of the pipeline is blown dry by the air pump 7 to avoid the generation of bacteria in the pipeline. The refrigeration principle of the refrigeration plate 4 in the cooling water tank 3 is the same as that of the refrigerator. It is a prior art and is not described in detail herein. A valve (not shown in the figure) is provided at the connection between the sterilization and dust removal box 8 and the air pump 7.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A non-reduced fruit juice aseptic concentration process, characterized in that: The following steps are involved: S1, raw material processing, washing the raw materials, drying them, using a core remover to remove the cores, and cutting them into pieces; S2, putting the cut juice into a juicer, adding pure water after the juicer has worked for a period of time, and filtering the pomace after the juicer has worked for a period of time to obtain preliminary juice; S3, sterilizing and cooling the preliminary juice by means of a sterilizing device and a cooling device, wherein the sterilizing device comprises: a U-shaped tube (1), a plurality of the U-shaped tubes (1) are provided, and each of the U-shaped tubes (1) is interconnected, a conveying device is provided on the U-shaped tube (1), and an ultraviolet light strip (2) is wound around the outer surface of the U-shaped tube (1); The cooling device comprises: a cooling water tank (3), the U-shaped tube (1) is located inside the cooling water tank (3), and a refrigeration plate (4) is provided on the inner bottom surface of the cooling water tank (3); The U-shaped tube (1) is provided with a swirl groove (5) inside, two adjacent swirl grooves (5) are in opposite directions, and the irradiation surface of the ultraviolet light strip (2) is in contact with the outer wall of the U-shaped tube (1); S4. After passing through the cooling device, the U-shaped tube (1) is passed into the juice concentration equipment, and after a period of time, concentrated juice is obtained.

2. The process for aseptic concentration of non-reduced fruit juice according to claim 1, characterized in that: The conveying device is specifically a liquid pump (6) and an air pump (7), and the output ends of the liquid pump (6) and the air pump (7) are both connected to the U-shaped tube (1).

3. The process for aseptic concentration of non-reduced fruit juice according to claim 2, characterized in that: One-way valves are provided at the connection points between the liquid pump (6), the air pump (7) and the U-shaped tube (1).

4. The process for aseptic concentration of non-reduced fruit juice according to claim 2, characterized in that: The input end of the liquid pump (6) is in communication with the U-shaped tube (1), and the input end of the air pump (7) is fixedly connected to a sterilization and dust removal box (8).

5. The process for aseptic concentration of non-reduced fruit juice according to claim 4, characterized in that: The sterilization and dust removal box (8) comprises: a box body 8 (01), and the inner surface of the box body (801) is fixedly connected with a plurality of filter screens 8 (02) and a strong light ultraviolet spotlight (803).

6. The process for aseptic concentration of non-reduced fruit juice according to claim 1, characterized in that: In S2, the juice extractor works for a period of time, specifically 15-30 minutes.

7. The process for aseptic concentration of non-reduced fruit juice according to claim 1, characterized in that: The step S2 continues to work for a period of time, specifically 5-10 minutes.

8. The process for aseptic concentration of non-reduced fruit juice according to claim 1, characterized in that: The period of time in S4 is specifically 4-6 hours.

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