CN110584038A - Method for preparing canned food - Google Patents

Abstract

The invention belongs to the technical field of food processing, and in particular relates to a method for making canned food, including a canned bottle used for storing and preserving canned food; The gas pressure is effectively controlled, which not only facilitates the screwing and removal of the bottle cap of the can, but also enhances the sealing performance inside the can, thereby effectively improving the taste and nutrition of the canned food; The heat conduction film not only expands the heat conduction area of the heating plate, but also transfers the heat to the air bag quickly and evenly, which further improves the adjustment speed and adjustment effect of the bottle body on the internal pressure, thus effectively enhancing the canned food. Fast and convenient.

Description

A kind of preparation method of canned food

technical field

The invention belongs to the technical field of food processing, in particular to a preparation method of canned food.

Background technique

Canned food refers to the food that meets the requirements of raw materials through processing, deployment, canning, sealing, sterilization, cooling, or aseptic filling to meet commercial aseptic requirements and can be stored for a long time at room temperature. There are two major types of canned food. Key features: sealing and sterilization. Among them, canned fruit is the most common; canned fruit is named differently according to the materials used. Generally, the raw materials of canned fruit are taken from fruits, including yellow peach, apple, lychee, strawberry, hawthorn, etc. Canned fruit is preserved. The freshness and nutrition are unique, second only to freshly picked fruit. Canned fruit not only has delicious pulp, but also the true nature of the fruit is completely integrated into the sugar water. The flavor of canned water is even stronger than that of fruit juice. Canned fruit mainly contains yellow peaches. Canned food, canned strawberry, canned orange, etc. Canned fruit is named differently according to the materials used. Generally, the raw materials of canned fruit are taken from fruits, including yellow peach, apple, lychee, strawberry, hawthorn, etc. Canned fruit is in preservation of freshness and nutrition. Uniquely, second only to freshly picked fruit, canned fruit not only has delicious pulp, but also the natural flavor of the fruit is completely integrated into the sugar water. The flavor of canned water is even stronger than that of fruit juice.

However, the fruits in canned fruits are easily oxidized in the air, resulting in enzymatic browning, resulting in discoloration of the pulp, which not only affects the taste of the canned fruit, but also damages the nutritional value of the canned fruit, especially if the canned fruit bottle is not eaten after opening. When it is completely sealed, it is easy to cause the internal canned fruit to deteriorate; at the same time, because the internal pressure of the sealed can is lower than the atmospheric pressure of the outside world, it is often difficult to unscrew the can, which is not only time-consuming and labor-intensive, but also Due to improper operation, the canned bottle may be broken and cause harm to the human body.

In view of this, the present invention provides a manufacturing method of canned food. By controlling the gas pressure inside the can, it is not only convenient to twist and take off the cap of the can, but also enhances the sealing performance inside the can, so as to effectively The taste and nutrition of canned food are improved.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the present invention provides a method for making canned food. By controlling the gas pressure inside the can, it not only facilitates the screwing and removal of the cap of the can, but also enhances the sealing performance inside the can. Thus, the taste and nutrition of the canned food are effectively improved.

The technical scheme adopted by the present invention to solve the technical problem is: a method for making canned food according to the present invention, the method comprises the following steps:

S1: Dissolve 0.6 parts by weight of table salt, 40 parts by weight of fructose, 2 parts by weight of citric acid, 25 parts by weight of neotame and 1 part by weight of vitamin C in 100 parts by weight of deionized water, heat at 95-100°C, and boil for 15-20 minutes to make sugar water;

S2: After preparing the sugar water in S1, take 3-5 parts of vitamin C, 2-3 parts of sodium citrate, 2 parts of D-sodium erythorbate, 0.5-0.8 parts of calcium chloride, and 10-12 parts of disodium stannous citrate parts, 3-4 parts of tea polyphenols, 2-3 parts of tocopherols, 0.2-0.3 parts of phytic acid, 1-2 parts of protease and 10-12 parts of water, mixed evenly to obtain antioxidants;

S3: After the antioxidants are prepared in S2, select 25-30 lemons, 30-60 bananas, 20-30 red dates, 15-25 kiwis, and 5-10 pineapples with pure, fresh, ripe and intact colors. , 1 to 5 parts of grapes and 10 to 14 parts of papaya, remove the fruit stems and peels, clean them, heat them in boiling water for 1 to 2 minutes, then stop heating and add ice cubes to cool down to 0°C;

S4: After the pulp is selected and peeled in S3, 100 parts of citric acid aqueous solution are added, then the water temperature is heated to 8-12°C, the pressure is 300-400Mpa, and the pulp is kept for 20-30min to inactivate the enzymes;

S5: After deactivating the enzyme in the pulp in S4, the pulp after deactivating the enzyme, the sugar water prepared in S1 and the antioxidant prepared in S2 are mixed, heat sterilized, and then placed in a canning bottle, the canning bottle cap is 2 Tighten and seal to obtain canned fruit;

Wherein, the canned bottle used in S5 includes a bottle body and a bottle cap, the bottle cap is threadedly connected to the top of the bottle body, and a heating module is arranged in the middle of the bottle cap, and the heating module includes a turntable, a lithium battery, a heating plate As for the airbag, the top of the turntable is provided with a ring-shaped evenly distributed rotating rod, the bottom end of the turntable is fixedly connected with the bottle cap, and a lithium battery is arranged in the turntable, and the lithium battery is used for electrified heating of the heating plate. The heating plate is fixed on the bottom surface of the bottle cap, the air bag is located at the bottom end of the heating plate, the air bag is filled with carbon dioxide gas, and the outer surface of the air bag is in contact with the bottom surface of the heating plate, and the two ends of the air bag are connected to the bottom end of the bottle cap. A spring is connected between them, a positioning block is arranged at the top of the inner wall of the bottle cap, and an elastic sealing ring is arranged at the bottom of the positioning block; during operation, the fruit in the can is easily oxidized in the air, resulting in enzymatic browning, resulting in the pulp of the fruit. Discoloration not only affects the taste of canned fruit, but also damages the nutritional value of canned fruit, especially when the canned fruit bottle is not fully eaten after being disassembled, the poor sealing of the canned bottle can easily lead to the deterioration of the internal canned fruit; Because the internal pressure of the canned bottle is lower than the atmospheric pressure of the outside world, the canned bottle is often difficult to unscrew, which is not only time-consuming and laborious, but also causes damage to the human body due to improper operation. Before opening the lid, the heating plate of the lithium battery causes the temperature inside the bottle body to rise and the gas expands, which increases the pressure inside the can, and the heating plate conducts heat conduction to the airbag provided at the bottom when it is heated, so that the airbag inside the airbag is heated. The heat-expandable carbon dioxide gas expands rapidly when heated, so that the expanded carbon dioxide gas drives the airbag to expand synchronously. At this time, the inflated airbag compresses the gas space inside the bottle body, thereby making the gas space in the bottle body smaller and the pressure increasing. The pressure inside the canned bottle is further enhanced, making it easier for the bottle cap to be unscrewed from the bottle body; and in the process of unscrewing the bottle cap, the outer surface of the bottle cap is smooth and the gripping area is large, which makes it inconvenient for consumers. Apply a concentrated force to the bottle cap to unscrew the bottle cap. At this time, the rotating rod at the top of the turntable applies force to the bottle cap connected at the bottom, which reduces the problem of hand slippage or inconvenient force application when the bottle cap is twisted. It is convenient for consumers to take the canned fruit; and when the canned food in the canned bottle is not completely eaten, the bottle cap is first pre-screwed on the bottle body, and the gas in the canned bottle is expanded by heating the heating plate, so that a part of the gas is released from the bottle. The gap between the bottle cap and the bottle body flows out. At this time, the bottle cap is tightened on the bottle body by rotating the rotating rod, so that the hot air in the sealed bottle body shrinks after gradually cooling, so that the pressure inside the bottle body becomes lower. In this way, the bottle cap is more tightly locked under the action of the internal pressure of the bottle body, which reduces the oxidative deterioration caused by the contact between the fruit inside the canned bottle and the outside air, and the bottle body is gradually screwed into the bottle body. The top gradually squeezes the sealing ring on the positioning block, so that the squeezed sealing ring is elastically deformed and tightly fitted between the bottle body and the bottle cap, which strengthens the sealing effect of the fruit inside the canned bottle; The beneficial effect is as follows: The hot plate and airbag can effectively control the gas pressure inside the canned bottle, which not only facilitates the screwing and removal of the bottle cap, but also enhances the sealing performance inside the canning bottle, thereby effectively improving the taste and nutrition of the canned food. .

Preferably, the shape of the airbag is set in an arc shape, and the outer end of the airbag protrudes downwards and adheres to the inner wall of the bottle; when working, the airbag arranged in an arc shape increases the surface area of the airbag during operation, so that the airbag can The gas space inside the bottle body is fully squeezed during expansion, and the outer end of the airbag that extends into the inner wall of the bottle and fits with it can effectively seal the canned fruit at the bottom of the airbag, reducing the amount of canned fruit and outside air. At the same time, when the bottle cap is unscrewed, the canned food inside the bottle body is shielded, so as to reduce the spillage of the internal canned food caused by the large movement of the bottle cap unscrewed, thereby reducing the deterioration of the canned food when it is eaten. waste.

Preferably, the bottom of the heating plate is provided with a layer of thermally conductive film supported by a thermally conductive adhesive material, the thermally conductive film is arc-shaped and attached to the outer surface of the airbag; during operation, the thermally conductive film made of the thermally conductive adhesive material not only expands The heat conduction area of the heating plate, and the heat conduction film attached to the outer surface of the airbag can also transfer heat to the airbag quickly and evenly, which further improves the adjustment speed and effect of the bottle body on the internal pressure, thus effectively enhancing the canned food. speed and convenience.

Preferably, the inner and outer ends of the airbag are provided with two arc-shaped magnets, and the two magnets have opposite magnetic properties; during operation, the two magnets arranged at the inner and outer ends of the airbag repel each other, so that the two mutually repelling magnets simultaneously drive the outer airbag to closely adhere to each other. It is attached to the inner wall of the bottle body, on the one hand, it strengthens the sealing of the canned fruit at the bottom by the airbag, reduces the deterioration caused by the oxidation of the canned fruit in contact with the outside air, and further improves the taste and nutrition of the canned food.

Preferably, an annular protective ring is installed in the middle of the bottle body, and the protective ring is made of elastic rubber material; during operation, the smooth outer surface of the bottle body is not convenient for consumers to hold the canned bottle, which makes the bottle body easy to use. Falling off from the hand leads to damage to the canned bottle. At this time, the consumer holds the bottom of the protective ring to make the hand support the protective ring to reduce the occurrence of damage to the bottle body from slipping from the hand; and the elastic protective ring is tilted when the bottle body is tilted. It can be supported at times to reduce the damage caused by the direct collision between the bottle body and the outside world, thereby improving the convenience and safety of the canned food.

Preferably, the bottom of the bottle body is provided with an elastic annular suction cup, and the inner side wall of the suction cup is provided with a rigid support block; during operation, when the bottle body is placed on the table top, the bottle body is collided due to uncontrollable external force. It is easy to tilt and tilt. At this time, the gas between the suction cup and the tabletop is squeezed out by pressing the bottle body, so that the suction cup is adsorbed on the tabletop under the action of internal and external air pressure, so as to fix the bottom of the bottle body; and pick it up on the bottle body When eating, squeeze the bottle down again, so that when the support block inside the suction cup is in contact with the desktop, the edge of the suction cup will be lifted up, so that the negative pressure inside the suction cup will disappear when the outside air flows in, so that the bottle body can be easily removed. In return, the safety and convenience of canned food are further improved.

Technical effects and advantages of the present invention:

1. The preparation method of a kind of canned food provided by the invention, in this method, by being provided with a heating plate and an airbag on the top of the canned bottle, the gas pressure inside the canned bottle is effectively controlled, which not only facilitates the twisting of the bottle cap of the canned bottle. It also enhances the airtightness inside the canned bottle, thereby effectively improving the taste and nutrition of the canned food.

2. A method of making canned food provided by the present invention, in this method, by disposing a heat conducting film at the bottom of the heating plate, not only the heat conduction area of the heating plate is enlarged, but also the heat can be quickly and evenly transferred to the airbag, which further improves the performance of the canned food. The adjustment speed and adjustment effect of the bottle body on the internal pressure are effectively enhanced, thereby effectively enhancing the speed and convenience of the canned food.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the step diagram of the present invention;

Fig. 2 is the three-dimensional schematic diagram of canned bottle in the present invention;

Fig. 3 is the structural representation of canned bottle in the present invention;

Fig. 4 is the enlarged view of A place in Fig. 3;

In the figure: bottle body 1, bottle cap 2, spring 21, positioning block 22, sealing ring 23, heating module 3, turntable 4, turning rod 41, heating plate 5, thermal conductive film 51, air bag 6, magnet 61, protective ring 7 , suction cup 8 , support block 81 .

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

As shown in Fig. 1-Fig. 4, a method for making canned food according to the present invention, the method comprises the following steps:

S1: Dissolve 0.6 parts by weight of table salt, 40 parts by weight of fructose, 2 parts by weight of citric acid, 25 parts by weight of neotame and 1 part by weight of vitamin C in 100 parts by weight of deionized water, heat at 95-100°C, and boil for 15-20 minutes to make sugar water;

S2: After preparing the sugar water in S1, take 3-5 parts of vitamin C, 2-3 parts of sodium citrate, 2 parts of D-sodium erythorbate, 0.5-0.8 parts of calcium chloride, and 10-12 parts of disodium stannous citrate parts, 3-4 parts of tea polyphenols, 2-3 parts of tocopherols, 0.2-0.3 parts of phytic acid, 1-2 parts of protease and 10-12 parts of water, mixed evenly to obtain antioxidants;

S3: After the antioxidants are prepared in S2, select 25-30 lemons, 30-60 bananas, 20-30 red dates, 15-25 kiwis, and 5-10 pineapples with pure, fresh, ripe and intact colors. , 1 to 5 parts of grapes and 10 to 14 parts of papaya, remove the fruit stems and peels, clean them, heat them in boiling water for 1 to 2 minutes, then stop heating and add ice cubes to cool down to 0°C;

S4: After the pulp is selected and peeled in S3, 100 parts of citric acid aqueous solution are added, then the water temperature is heated to 8-12°C, the pressure is 300-400Mpa, and the pulp is kept for 20-30min to inactivate the enzymes;

S5: After deactivating the enzyme in the pulp in S4, the pulp after deactivating the enzyme, the sugar water prepared in S1 and the antioxidant prepared in S2 are mixed, heat sterilized, and then placed in a canning bottle, the canning bottle cap is 2 Tighten and seal to obtain canned fruit;

Wherein, the canned bottle used in S5 includes a bottle body 1 and a bottle cap 2, the bottle cap 2 is threadedly connected to the top of the bottle body 1, and a heating module 3 is provided in the middle of the bottle cap 2, and the heating module 3 includes The turntable 4, the lithium battery, the heating plate 5 and the airbag 6, the top of the turntable 4 is provided with a ring-shaped evenly distributed rotating rod 41, the bottom end of the turntable 4 is fixedly connected with the bottle cap 2, and the turntable 4 is provided with a lithium battery , the lithium battery is used for energizing heating of the heating plate 5, the heating plate 5 is fixed on the bottom surface of the bottle cap 2, the air bag 6 is located at the bottom end of the heating plate 5, and the air bag 6 is filled with carbon dioxide gas, and The outer surface of the airbag 6 is in contact with the bottom surface of the heating plate 5. A spring 21 is connected between the two ends of the airbag 6 and the bottom end of the bottle cap 2. The top of the inner wall of the bottle cap 2 is provided with a positioning block 22, and the bottom of the positioning block 22 is provided. An elastic sealing ring 23 is provided; when working, the fruit in the can is easily oxidized in the air, resulting in enzymatic browning, resulting in discoloration of the pulp, which not only affects the taste of the canned fruit, but also causes damage to the nutritional value of the canned fruit. Especially when the canned fruit bottle is not eaten completely after being disassembled, the poor sealing of the canned bottle can easily lead to the deterioration of the internal canned fruit; at the same time, because the internal pressure of the sealed canned bottle is lower than the external atmospheric pressure, the canned bottle is often difficult to twist. The phenomenon of opening is not only time-consuming and labor-intensive, but also causes the canned bottle to be broken due to improper operation, thereby causing harm to the human body; and before the canned bottle in the present invention is opened, the heating plate 5 is heated by the lithium battery. When the temperature rises, the gas expands, which increases the pressure inside the can, and when the heating plate 5 is heated, it conducts heat conduction to the airbag 6 provided at the bottom, so that the carbon dioxide gas in the airbag 6 that is easily inflated by heat is rapidly expanded by heat, thereby making the inflated air bag 6. The carbon dioxide gas drives the airbag 6 to expand synchronously. At this time, the expanded airbag 6 compresses the gas space inside the bottle body 1, thereby making the gas space in the bottle body 1 smaller and larger in pressure, which further enhances the pressure inside the can, which is convenient for The bottle cap 2 is more easily unscrewed from the bottle body 1; and during the unscrewing process of the bottle cap 2, since the outer surface of the bottle cap 2 is smooth and the gripping area is large, it is inconvenient for the consumer to apply concentration to the bottle cap 2. At this time, the rotating rod 41 on the top of the turntable 4 applies force to the bottle cap 2 connected at the bottom, which reduces the problem of hand slippage or inconvenient force application when the bottle cap 2 is twisted, which is more convenient The consumer picks up the canned fruit; and when the canned food in the canned bottle is not fully eaten, firstly, the bottle cap 2 is pre-screwed on the bottle body 1, and the gas in the canned bottle is expanded by heating the heating plate 5, so that a part of the canned food is expanded. The gas flows out from the gap between the bottle cap 2 and the bottle body 1. At this time, the bottle cap 2 is tightened on the bottle body 1 by rotating the rotary rod 41, so that the hot air in the sealed bottle body 1 shrinks after gradually cooling, thereby The pressure inside the bottle body 1 becomes lower, so that the bottle cap 2 is more tightly locked under the action of the pressure inside the bottle body 1, so as to reduce the oxidative deterioration caused by the contact between the fruit inside the canned bottle and the outside air, and in the bottle. During the process of gradually screwing the cap 2 into the bottle body 1, the top of the bottle body 1 gradually faces the sealing ring 2 on the positioning block 22. 3. Squeeze, so that the squeezed sealing ring 23 is tightly fitted between the bottle body 1 and the bottle cap 2 after elastic deformation, and the sealing effect of the fruit inside the canned bottle is strengthened; the beneficial effects of using this invention are: A heating plate 5 and an air bag 6 are arranged on the top of the can, so that the gas pressure inside the can can be effectively controlled, which not only facilitates the screwing and removal of the cap 2 of the can, but also enhances the airtightness inside the can, thereby effectively The taste and nutrition of canned food are improved.

As an embodiment of the present invention, the shape of the airbag 6 is set in an arc shape, and the outer end of the airbag 6 protrudes downward and fits with the inner wall of the bottle body 1; during operation, the airbag 6 arranged in an arc shape increases The surface area of the airbag 6 when working is enlarged, so that the airbag 6 fully squeezes the gas space inside the bottle body 1 when it is inflated, and the outer end of the airbag 6 that extends into the inner wall of the bottle body 1 and fits with it can effectively The canned fruit at the bottom of the airbag 6 is sealed to reduce the deterioration caused by the contact and oxidation of the canned fruit and the outside air, and at the same time when the bottle cap 2 is unscrewed, the canned food inside the bottle body 1 is shielded to reduce the unscrewed bottle cap 2. The larger the action range, the spilling of the internal canned food is caused, thereby reducing the deterioration and waste of the canned food when it is eaten.

As an embodiment of the present invention, the bottom of the heating plate 5 is provided with a layer of thermally conductive film 51 supported by a thermally conductive adhesive material. The thermally conductive film 51 is arc-shaped and attached to the outer surface of the airbag 6; The thermally conductive film 51 made of adhesive material not only expands the thermally conductive area of the heating plate 5, but also the thermally conductive film 51 attached to the outer surface of the airbag 6 can also transfer heat to the airbag 6 quickly and evenly, further improving the pairing of the inside of the bottle body 1. The adjustment speed and adjustment effect of the pressure effectively enhance the speed and convenience of canned food.

As an embodiment of the present invention, the inner and outer ends of the airbag 6 are provided with two arc-shaped magnets 61, and the magnetism of the two magnets 61 is opposite; during operation, the two magnets 61 arranged at the inner and outer ends of the airbag 6 repel each other, so that the The two magnets 61 of the repelling drive the external air bag 6 to be closely attached to the inner wall of the bottle body 1 at the same time. On the one hand, the air bag 6 is strengthened to seal the canned fruit at the bottom, and the deterioration produced when the canned fruit is contacted and oxidized with the outside air is reduced, thereby It further improves the taste and nutrition of canned food.

As an embodiment of the present invention, an annular protective ring 7 is installed in the middle of the bottle body 1, and the protective ring 7 is made of elastic rubber material; during operation, the smooth outer surface of the bottle body 1 is inconvenient for consumers Grasp the canned bottle, so that the bottle body 1 is easy to fall off from the hand, resulting in damage to the canned bottle. At this time, the eater grasps the bottom of the protective ring 7, so that the hand supports the protective ring 7, reducing the amount of the bottle body 1 from the hand. Sliding damage occurs; and the elastic protective ring 7 supports the bottle body 1 when it is tilted, reducing the damage caused by the direct collision between the bottle body and the outside world, thereby improving the convenience and safety of canned food.

As an embodiment of the present invention, the bottom of the bottle body 1 is provided with an elastic annular suction cup 8, and the inner side wall of the suction cup 8 is provided with a rigid support block 81; during operation, when the bottle body is placed on the desktop , due to the collision of uncontrollable external force, the bottle body is easily tipped and skewed. At this time, the gas between the suction cup 8 and the desktop is squeezed out by pressing the bottle body, so that the suction cup 8 is adsorbed on the desktop under the action of internal and external air pressure, so as to prevent The bottom of the bottle body is fixed; and when the bottle body is picked up and eaten, the bottle body is squeezed downward again, so that when the support block 81 inside the suction cup 8 is in contact with the desktop, the edge of the suction cup 8 is lifted up, so that the inside of the suction cup 8 is in the When the outside air flows in, the negative pressure disappears, so that the bottle body 1 can be easily retrieved, and the safety and convenience of the canned food are further improved.

During operation, the heating of the heating plate 5 by the lithium battery makes the temperature inside the bottle body 1 rise and the gas expands, which increases the pressure inside the can, and the heating plate 5 conducts heat on the airbag 6 provided at the bottom when it is heated, so that The heat-expandable carbon dioxide gas in the airbag 6 expands rapidly when heated, so that the expanded carbon dioxide gas drives the airbag 6 to expand synchronously. The gas space becomes smaller and the pressure becomes larger, which further enhances the pressure inside the can, making it easier for the bottle cap 2 to be unscrewed from the bottle body 1; And the gripping area is large, making it inconvenient for the consumer to apply a concentrated force to the bottle cap 2 to take it out. At this time, the rotating rod 41 on the top of the turntable 4 applies force to the bottle cap 2 connected at the bottom, reducing the number of bottles. When the cap 2 is twisted, the hand slips or it is inconvenient to apply force, which makes it more convenient for the eater to take the canned fruit; and when the canned food in the canned bottle is not completely eaten, first pre-screw the bottle cap 2 on the bottle body 1. Then, the gas in the can is expanded by heating the heating plate 5, so that a part of the gas flows out from the gap between the bottle cap 2 and the bottle body 1. At this time, the bottle cap 2 is screwed on the bottle body 1 by rotating the rotating rod 41. , so that the hot air in the sealed bottle body 1 shrinks after being gradually cooled, so that the pressure inside the bottle body 1 becomes lower, so that the bottle cap 2 is more tightly locked under the action of the pressure inside the bottle body 1, reducing the The fruit inside the canned bottle is oxidized and deteriorated when it comes into contact with the outside air, and in the process of gradually screwing the bottle cap 2 into the bottle body 1, the top of the bottle body 1 gradually squeezes the sealing ring 23 on the positioning block 22, so that the sealing ring 23 on the positioning block 22 is gradually squeezed. After the extruded sealing ring 23 is elastically deformed, it is tightly fitted between the bottle body 1 and the bottle cap 2, and the sealing effect of the fruit inside the canned bottle is strengthened; the beneficial effect of adopting this invention is: The plate 5 and the airbag 6 can effectively control the gas pressure inside the canned bottle, which not only facilitates the screwing and removal of the bottle cap 2 of the canned bottle, but also enhances the sealing performance inside the canned bottle, thereby effectively improving the taste of the canned food. with nutrition.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. a preparation method of canned food, is characterized in that, the method comprises the following steps: S1: Dissolve 0.6 parts by weight of table salt, 40 parts by weight of fructose, 2 parts by weight of citric acid, 25 parts by weight of neotame and 1 part by weight of vitamin C in 100 parts by weight of deionized water, heat at 95-100°C, and boil for 15-20 minutes to make sugar water; S2: After preparing the sugar water in S1, take 3-5 parts of vitamin C, 2-3 parts of sodium citrate, 2 parts of D-sodium erythorbate, 0.5-0.8 parts of calcium chloride, and 10-12 parts of disodium stannous citrate parts, 3-4 parts of tea polyphenols, 2-3 parts of tocopherols, 0.2-0.3 parts of phytic acid, 1-2 parts of protease and 10-12 parts of water, mixed evenly to obtain antioxidants; S3: After the antioxidants are prepared in S2, select 25-30 lemons, 30-60 bananas, 20-30 red dates, 15-25 kiwis, and 5-10 pineapples with pure, fresh, ripe and intact colors. , 1 to 5 parts of grapes and 10 to 14 parts of papaya, remove the fruit stems and peels, clean them, heat them in boiling water for 1 to 2 minutes, then stop heating and add ice cubes to cool down to 0°C; S4: After the pulp is selected and peeled in S3, 100 parts of citric acid aqueous solution are added, then the water temperature is heated to 8-12°C, the pressure is 300-400Mpa, and the pulp is kept for 20-30min to inactivate the enzymes; S5: after the pulp is inactivated in S4, the pulp after deactivation, the sugar water prepared in S1 and the antioxidant prepared in S2 are mixed, heated and sterilized, then placed in a canned bottle, and the canned bottle cap ( 2) Tighten and seal to obtain canned fruit; Wherein, the canned bottle used in S5 includes a bottle body (1) and a bottle cap (2), the bottle cap (2) is threadedly connected to the top of the bottle body (1), and the middle of the bottle cap (2) is provided with A heating module (3), the heating module (3) includes a turntable (4), a lithium battery, a heating plate (5) and an airbag (6), and the top of the turntable (4) is provided with a ring-shaped evenly distributed turning rod (41). ), the bottom end of the turntable (4) is fixedly connected with the bottle cap (2), the turntable (4) is provided with a lithium battery, and the lithium battery is used for electrified heating of the heating plate (5). (5) is fixed on the bottom surface of the bottle cap (2), the airbag (6) is located at the bottom end of the heating plate (5), the airbag (6) is filled with carbon dioxide gas, and the outer surface of the airbag (6) is connected to the heating plate (5). The bottom surface of the plate (5) is in contact, and a spring (21) is connected between the two ends of the air bag (6) and the bottom end of the bottle cap (2), and a positioning block (22) is provided at the top of the inner wall of the bottle cap (2), The bottom of the positioning block (22) is provided with an elastic sealing ring (23). 2. The method for making a kind of canned food according to claim 1, characterized in that: the shape of the airbag (6) is set in an arc shape, and the outer end of the airbag (6) protrudes downwards and is connected with the bottle body (6). 1) The inner walls are attached to each other. 3. The manufacturing method of a canned food according to claim 1, wherein the bottom of the heating plate (5) is provided with a layer of thermally conductive film (51) made of a thermally conductive adhesive material, and the thermally conductive film (51) is provided at the bottom of the heating plate (5). 51) is arc-shaped and fits with the outer surface of the airbag (6). 4 . The method for making canned food according to claim 2 , wherein the inner and outer ends of the airbag ( 6 ) are provided with two arc-shaped magnets ( 61 ), and the two magnets ( 61 ) have opposite magnetic properties. 5 . 5 . The method for producing canned food according to claim 2 , wherein an annular protective ring ( 7 ) is installed in the middle of the bottle body ( 1 ), and the protective ring ( 7 ) is made of elastic rubber. 6 . material. 6. The method for producing canned food according to claim 5, wherein the bottom of the bottle body (1) is provided with an elastic annular suction cup (8), and the inner side wall of the suction cup (8) is provided with an elastic annular suction cup (8). A rigid support block (81) is provided.