CN111153372B - Fruit juice aerosol and preparation method thereof - Google Patents
Fruit juice aerosol and preparation method thereof Download PDFInfo
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- CN111153372B CN111153372B CN202010055514.2A CN202010055514A CN111153372B CN 111153372 B CN111153372 B CN 111153372B CN 202010055514 A CN202010055514 A CN 202010055514A CN 111153372 B CN111153372 B CN 111153372B
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- aerosol
- fruit juice
- coating
- side wall
- tank body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
- B67C7/0073—Sterilising, aseptic filling and closing
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/42—Preservation of non-alcoholic beverages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/02—Linings or internal coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
Abstract
The invention relates to the technical field of aerosol, in particular to a fruit juice aerosol and a preparation method thereof, and the fruit juice aerosol comprises a tank body, wherein a first coating is coated on the inner side wall of the tank body, and a second coating is coated on the first coating; the first coating adopts an epoxy resin coating; the second coating is composed of the following raw materials in percentage by mass: 20-40 parts of zein; 1-3 parts of lactic acid; 70-100 parts of ethanol. The fruit juice aerosol and the preparation method thereof can safely and effectively ensure the flavor of food and prolong the shelf life by canning fruit juice through the aerosol.
Description
Technical Field
The invention relates to the technical field of aerosol, in particular to a fruit juice aerosol and a preparation method thereof.
Background
The industrial development, the fruit juice beverage has longer and longer shelf life, and the shelf life can be longer and longer because of the addition of the preservative. Preservatives are a class of food additives that inhibit microbial activity and prevent spoilage of food products. Although only 32 kinds of food preservatives allowed to be used are approved in China, most of the preservatives used in food production are artificially synthesized, and certain side effects can be caused when the preservatives are not used properly; some preservatives even contain trace toxins, and long-term excessive intake of the preservatives can cause certain damage to human health.
The existing fruit juice beverage is bottled or canned, and no matter the fruit juice beverage is bottled or canned, the fruit juice cannot be isolated from the air in the canning process. Microorganisms are mixed in the air, and the microorganisms directly influence the preservation period of the fruit juice beverage.
Disclosure of Invention
The invention aims to provide a fruit juice aerosol and a preparation method thereof, which can be used for canning fruit juice through the aerosol, so that the flavor of food is safely and effectively ensured, and the quality guarantee period is prolonged.
The technical purpose of the invention is realized by the following technical scheme: the fruit juice aerosol comprises a tank body, wherein a first coating is coated on the inner side wall of the tank body, and a second coating is coated on the first coating;
the first coating adopts an epoxy resin coating;
the second coating is composed of the following raw materials in percentage by mass:
20-40 parts of zein;
1-3 parts of lactic acid;
70-100 parts of ethanol.
Through adopting above-mentioned technical scheme, by the canned fruit juice of aerosol, the aerosol can effectively completely cut off the contact of fruit juice and oxygen when the storage fruit juice to can effectively reduce the fruit juice oxidation, prolong the shelf life.
After zein is dissolved in ethanol, lactic acid is added as a plasticizer, then the zein is coated on the inner surface of an aerosol tank body, and after the solution is evaporated, a layer of glossy zein protective film is formed on the surface. The alcohol soluble protein protective film can effectively prevent the fruit juice solution in the tank from contacting with the aerosol tank body, and can maintain the original ecology of the fruit juice.
The invention is further provided with: the second coating is composed of the following raw materials in percentage by mass:
by adopting the technical scheme, the pectin and the chitosan are added, the bonding force between the coating and the inner surface of the aerosol tank body can be improved by the pectin, and because the pure zein layer is easy to soften after being stored for a long time under the condition of higher relative humidity, the glue layer can be kept for a longer time after the pectin is added. The chitosan has antibacterial effect, so that the fruit juice is better protected in the aerosol can, and the storage time of the fruit juice is prolonged.
The invention is further provided with: a preparation method of fruit juice aerosol comprises the following steps:
(1) preparing fresh juice;
(2) sterilizing the aerosol tank body by a sterilizing device;
(3) canning the sterilized aerosol tank body in an aseptic canning production workshop;
(4) sterilizing and disinfecting fresh juice, and filling into an aerosol can;
(5) and finally, sealing the aerosol tank body filled with the fruit juice, and filling the propellant to prepare the fruit juice aerosol.
By adopting the technical scheme, the aerosol tank body is sterilized, and the sterile state of the container is ensured; the aseptic state of the canning production workshop is ensured, the container is prevented from being exposed in a bacteria environment, and the initial bacteria carrying amount of the aerosol tank body of the container is strictly ensured.
The invention is further provided with: the ph of the fruit juice in the step (1) is less than 4.5.
The microbial examination shows that the main genera causing the fruit juice to decay are: yeasts, molds and partially spoilage bacteria. The disinfection device is capable of producing a high temperature disinfection. While spore bacteria with strong heat resistance can not reproduce under the acidic condition. By adopting the technical scheme, the ph of the sterilized concentrated juice can reach the commercial sterile state below 4.5, and the sterile state of the sterilized concentrated juice is kept before filling.
The invention is further provided with: and (3) the sterilizing device in the step (2) comprises a box body, wherein a lifting mechanism is installed on the inner top wall of the box body and is connected with a supporting frame, the supporting frame is connected with an annular sterilizing cover, and an ultraviolet sterilizing lamp is installed on the inner side wall of the annular sterilizing cover.
The ultraviolet disinfection lamp of the existing disinfection device is directly arranged on the inner side wall of a box body of the disinfection device, an aerosol tank body is arranged in the box body, and the tank body is disinfected by the ultraviolet disinfection lamp arranged on the inner side wall of the box body. However, the disinfection device has the problem of uneven disinfection, the distance between the aerosol tank body placed in the box body and the ultraviolet disinfection lamps on the two sides is different, and the side wall of the box body, which is opposite to the aerosol tank body and is close to one side of the closed door of the box body of the disinfection device, is not provided with the corresponding ultraviolet disinfection lamp, so that the disinfection effect is not ideal directly.
By adopting the technical scheme, the canned tank bodies are all cylindrical, the annular disinfection cover can cover the tank bodies, and the tank bodies are disinfected at high temperature of 360 degrees by the ultraviolet disinfection lamp arranged on the inner side wall of the annular disinfection cover; the height of the annular disinfection cover can be flexibly adjusted by the aid of the lifting mechanism, so that the annular disinfection cover can be suitable for aerosol tank bodies with different heights.
Ultraviolet rays can kill various microorganisms including bacteria, fungi, viruses, etc.
The invention is further provided with: the support frame comprises a first support rod and a second support rod, and the first support rod and the second support rod are in cross vertical connection; the two ends of the first supporting rod are movably provided with first adjusting sleeves, the two ends of the second supporting rod are movably provided with second adjusting sleeves, one end of each first adjusting sleeve, far away from the first supporting rod, is connected with the inner side wall of the annular disinfection cover, and one end of each second adjusting sleeve, far away from the second supporting rod, is connected with the inner side wall of the annular disinfection cover.
Through adopting above-mentioned technical scheme, the interval between annular disinfection cover inside wall and the external lateral wall of the aerosol jar can be adjusted in the setting of first adjusting collar and second adjusting collar, adjusts the interval between annular disinfection cover inside wall and the external lateral wall of the aerosol jar according to ultraviolet lamp's effective irradiation distance to effectively guarantee the disinfection effect, and be fit for the aerosol jar body of equidimension not.
The invention is further provided with: a first ozone channel is formed in the first supporting rod, a second ozone channel is formed in the second supporting rod, and the first ozone channel is communicated with the second ozone channel; the side wall of one side, away from the lifting mechanism, of the first support rod is provided with a first disinfection hole communicated with the first ozone flow channel, and the side wall of one side, away from the lifting mechanism, of the second support rod is provided with a second disinfection hole communicated with the second ozone flow channel.
Through adopting above-mentioned technical scheme, the setting in first disinfection hole and second disinfection hole can directly spray ozone to the aerosol jar internal, and virus, fungi, bacterium propagule and spore can be killed to ozone. Ozone diffuses in indoor air quickly and uniformly, and no dead angle exists in disinfection.
The invention is further provided with: and (4) the sterile air environment in the step (3) comprises a sterile canning production workshop, an air filtering mechanism is installed on the sterile canning production workshop, and a primary filter, a secondary filter and a high-efficiency filter are sequentially arranged on the air filtering mechanism from outside to inside.
Through adopting above-mentioned technical scheme, the aseptic environment in canning workshop can be improved to the cooperation of primary filter, medium efficiency filter and high efficiency filter is used to guarantee product quality.
The invention is further provided with: install ultraviolet lamp in the aseptic canning workshop between primary filter and the secondary filter, install infrared lamp between secondary filter and the high efficiency filter.
In reality, if the filter is wet and water is carried by the filter, the filter cannot achieve the purpose of filtering and even becomes a dust generator. For the filter paper made of plant fiber, if the water resistance of the paper is poor, the paper is softened by water, the fiber is compressed, and the resistance of the filter can be rapidly increased until the filter is blocked; if the high-efficiency filter carries water, the dust can be conveyed to the lee side of the material by the water, and after air drying, the filter becomes a dust generator.
Through adopting above-mentioned technical scheme, infrared lamp's setting can reduce the moisture through in the high efficiency filter air to avoid the moisture in the air too much and make the filter stifled die, become the dust generator even. Ultraviolet lamp's setting can disinfect the air that gets into aseptic canning workshop to improve the sterile environment of canning workshop, thereby guarantee product quality.
The invention is further provided with: and (5) the propellant is nitrogen, and the pressure is controlled to be 8-10 kg.
By adopting the technical scheme, the nitrogen is inert gas and is not miscible with the fruit juice feed liquid. And the oxygen can be isolated from oxidation reaction, the growth of microorganisms is inhibited, and the safe and effective isolation and protection effects are achieved.
The invention is further provided with: the bottle cap seat is arranged on the tank body, the pressing head is arranged on the bottle cap seat, and the liquid spraying hole is formed in the pressing head; an annular clamping groove is formed in the pressing head on the outer side of the liquid spraying hole; a clamping ring is arranged in the annular clamping groove and comprises a clamping ring bottom wall, one side of the clamping ring bottom wall is vertically connected with a first clamping ring side wall, the other side of the clamping ring bottom wall is vertically connected with a second clamping ring side wall, the clamping ring bottom wall is tightly propped against the groove bottom wall of the annular clamping groove, the first clamping ring side wall is tightly propped against the side wall of one side of the annular clamping groove, and the second clamping ring side wall is tightly propped against the side wall of the other side of the annular clamping groove; and a guide pipe is arranged in the clamping ring in a clamping manner.
Through adopting above-mentioned technical scheme, setting up of honeycomb duct can make originally vaporific fruit juice of spraying change into the streamline form to pour out from the bottle, and convenient the edible fruit juice of being convenient for.
The clamping ring is arranged in the annular clamping groove, and the installation firmness of the guide pipe and the pressing head is effectively improved due to the arrangement of the clamping ring; and can avoid the friction damage of honeycomb duct and press the press head to improve honeycomb duct and press the life of press head.
The invention is further provided with: first screens lug is installed on the lateral wall that first screens ring lateral wall is close to honeycomb duct one side, install second screens lug on the lateral wall that second screens ring lateral wall is close to honeycomb duct one side, just first screens lug and second screens lug dislocation set.
By adopting the technical scheme, the first clamping convex block and the second clamping convex block are arranged in a staggered manner, so that a deformation space is generated for the deformation of the flow guide pipe, and the flow guide pipe can tightly abut against the first clamping convex block and the second clamping convex block; the installation fastness of screens ring and honeycomb duct can further be improved in the cooperation use of first screens lug and second screens lug.
The invention is further provided with: the honeycomb duct is connected with a pressing plate in a clamping mode, clamping teeth are arranged on the side wall, close to one side of the pressing head, of the pressing plate, and grooves matched with the clamping teeth for use are formed in the pressing head outside the annular clamping grooves.
By adopting the technical scheme, the arrangement of the pressing plate can further improve the installation firmness of the guide pipe and the pressing head, and reduce the overlarge pressure when the fruit juice is sprayed, so that the guide pipe falls; the cooperation of latch and recess is used and can be improved the installation fastness of clamp plate and press head.
The invention is further provided with: the pressing head is characterized in that a locking sheet is rotatably arranged on the pressing plate, a locking convex block is arranged on the locking sheet, and a locking groove matched with the locking convex block for use is formed in the top wall of the pressing head.
Through adopting above-mentioned technical scheme, the setting of stay can further improve the installation fastness of clamp plate and press head, and the cooperation of locking lug and locking recess is used and can is improved the installation fastness of stay and press head.
The invention is further provided with: the pressing head is provided with a cushion block, and the upper surface of the cushion block is tightly propped against the lower surface of the locking sheet.
By adopting the technical scheme, the cushion block can enable the upper surface of the locking sheet to be horizontal, and a user can press the pressing head through the locking sheet; when the fruit juice is poured out, a user can press the pressing head downwards after pressing the locking sheet to spray the fruit juice from the liquid spraying hole, so that the falling of the pressing plate is reduced, the falling probability of the pressing plate is reduced, and the falling probability of the spraying pipe is also reduced; meanwhile, the upper surface of the locking sheet is horizontal, so that the pressing comfort of a user can be improved.
The invention is further provided with: and a drainage convex block is arranged on the inner side wall of the drainage tube close to one side of the pressing head.
Through adopting above-mentioned technical scheme, the setting up of drainage lug can carry out the water conservancy diversion to spun fruit juice, and improves the leakproofness between honeycomb duct and the press head simultaneously.
In conclusion, the beneficial technical effects of the invention are as follows:
(1) the aerosol can be used for canning the fruit juice, and the aerosol can effectively isolate the fruit juice from oxygen when the fruit juice is stored, so that the oxidation of the fruit juice can be effectively reduced, and the storage period is prolonged;
(2) sterilizing the aerosol tank body to ensure the sterile state of the container; the aseptic state of the canning production workshop is ensured, the container is prevented from being exposed in a bacteria-containing environment, and the initial bacteria-carrying amount of the aerosol tank body of the container is strictly ensured;
(3) the annular disinfection cover can cover the tank body, and the tank body is disinfected at high temperature of 360 degrees by the ultraviolet disinfection lamp arranged on the inner side wall of the annular disinfection cover;
(4) the first disinfection hole and the second disinfection hole are arranged to directly spray ozone into the aerosol tank body, the ozone is diffused and uniform in indoor air, and no dead angle exists in disinfection.
Drawings
FIG. 1 is a schematic view of the construction of the disinfection device of the present invention;
FIG. 2 is a cross-sectional view of the support bracket of FIG. 1;
FIG. 3 is a cross-sectional view of an aseptic canning production plant;
FIG. 4 is a schematic view of the structure of an aerosol;
FIG. 5 is a cross-sectional view of the pressing head of FIG. 4;
fig. 6 is a partially enlarged schematic view of a in fig. 5.
1. A tank body; 2. a bottle cap seat; 3. a pressing head; 4. a liquid ejection hole; 5. an annular clamping groove; 6. a flow guide pipe; 11. a box body; 12. an annular sterilization cover; 13. an ultraviolet disinfection lamp; 14. A first support bar; 15. a second support bar; 16. a first adjusting sleeve; 17. a second adjusting sleeve; 18. a first ozone flow channel; 19. a second ozone flow channel; 20. a first sterilization hole; 21. a second sterilization hole; 31. a sterile canning production shop; 32. a primary filter; 33. a medium-efficiency filter; 34. a high efficiency filter; 35. an ultraviolet lamp; 36. an infrared lamp; 41. a clamp ring bottom wall; 42. the side wall of the first clamping ring; 43. the side wall of the second clamping ring; 44. a first clamping convex block; 45. a second clamping convex block; 46. pressing a plate; 47. clamping teeth; 48. a groove; 49. a locking piece; 50. locking the bump; 51. locking the groove; 52. cushion blocks; 53. and (4) draining the lug.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The fruit juice aerosol disclosed by the invention comprises a tank body 1, wherein a first coating is coated on the inner side wall of the tank body 1, and the first coating adopts an epoxy resin coating. The first coating is coated with a second coating, and the second coating is composed of the following raw materials in percentage by mass:
the preparation method of the fruit juice aerosol is characterized by comprising the following steps:
(1) preparing fresh juice;
the juice is pasteurized and its attributes are:
ph＜4.5，aw＞0.95。
the microorganisms in the fruit juice beverage meet the quality standard:
microorganism indexes are as follows: total bacteria (cfu/mL): less than or equal to 100; coliform (cfu/mL): less than or equal to 6;
mold, yeast (cfu/mL): less than or equal to 20; pathogenic bacteria: and cannot be detected.
(2) The aerosol canister 1 is sterilised by a sterilising device.
(3) The sterilized aerosol can body 1 is canned in an aseptic canning production workshop.
The workshop of the aseptic canning production workshop is closed and the static pressure difference of the workshop is kept to be positive pressure, and the environmental conditions are that the temperature is 22-26 ℃ and the relative humidity is 55-65%.
(4) Fresh juice is sterilized and disinfected and then is canned into an aerosol can body 1;
before filling, sterile compressed air is adopted for blowing, and impurities possibly existing in the empty tank are blown out. Ozone is used to sterilize and guarantee the aseptic state of the container.
(5) And finally, sealing the aerosol tank body 1 filled with the fruit juice, and filling the propellant to prepare the fruit juice aerosol. The propellant is nitrogen, and the pressure is controlled to be 8-10 kg.
As shown in fig. 1, the disinfection device includes a box 11, and a lifting mechanism is installed on an inner top wall of the box 11, and the lifting mechanism adopted in this embodiment is a cylinder. The cylinder body is connected with the inner top wall of the box body 11, and a piston rod of the cylinder is connected with the supporting frame.
The support frame includes first bracing piece 14 and second bracing piece 15, and first bracing piece 14 links to each other with second bracing piece 15 is perpendicular, and the piston rod of cylinder links firmly with the perpendicular department of linking to each other of first bracing piece 14 and second bracing piece 15.
First adjusting sleeve 16 is sleeved on two ends of first supporting rod 14, a positioning pin is installed on first adjusting sleeve 16, more than 1 positioning through hole is formed in first supporting rod 14, and first adjusting sleeve 16 is connected with first supporting rod 14 through threads after penetrating through positioning through hole through the positioning pin. The two ends of the second supporting rod 15 are sleeved with second adjusting sleeves 17, positioning pins are also installed on the second adjusting sleeves 17, more than 1 positioning through hole is also formed in the second supporting rod 15, and the second adjusting sleeves 17 are connected with the second supporting rod 15 in a threaded mode after penetrating through the positioning through holes through the positioning pins.
As shown in fig. 1 and 2, a first ozone channel 18 is formed in the first support rod 14, a second ozone channel 19 is formed in the second support rod 15, and the first ozone channel 18 is communicated with the second ozone channel 19. The first support rod 14 is provided with a first disinfection hole 20 communicated with the first ozone channel 18, the second support rod 15 is provided with a second disinfection hole 21 communicated with the second ozone channel 19, the first ozone channel 18 is connected with the ozone generator through a hose, and the ozone disinfects the tank body 1 through the first disinfection hole 20 and the second disinfection hole 21.
The first adjusting sleeve 16 is far away from and is installed annular disinfection cover 12 on the end that links to each other with first bracing piece 14, and the second adjusting sleeve 17 is far away from and also is installed annular disinfection cover 12 on the end that links to each other with second bracing piece 15, and 4 disinfection covers 12 form circular disinfection ring, and the central line of circular disinfection ring and the central line coincidence of jar body 1 to make the week side of jar body 1 can carry out 360 degrees high temperature disinfection.
As shown in fig. 3, the sterile air environment includes a sterile canning production workshop 31, an air filtering mechanism is installed on the sterile canning production workshop 31, and the air filtering mechanism includes a primary filter 32, a medium filter 33 and a high efficiency filter 34 which are sequentially arranged on the sterile canning production workshop 31 from outside to inside.
An ultraviolet lamp 35 is installed in the aseptic tank production workshop 31 between the primary filter 32 and the intermediate filter 33, and an infrared lamp 36 is installed between the intermediate filter 33 and the high-efficiency filter 34.
As shown in fig. 4 and 5, a bottle cap base 2 is mounted on the can body 1, a pressing head 3 is mounted on the bottle cap base 2, and a liquid spraying hole 4 is formed in the pressing head 3.
As shown in fig. 5 and 6, the pressing head 3 outside the liquid ejecting hole 4 is provided with an annular retaining groove 5, and the center line of the annular retaining groove 5 coincides with the center line of the liquid ejecting hole 4.
The annular clamping groove 5 is internally provided with a clamping ring, and the clamping ring adopted by the embodiment is made of rubber. The screens ring includes screens ring diapire 41, first screens ring lateral wall 42 and second screens ring lateral wall 43, and the one end of screens ring diapire 41 links to each other with first screens ring lateral wall 42 is perpendicular, and the other end of screens ring diapire 41 links to each other with second screens ring lateral wall 43 is perpendicular, screens ring diapire 41, first screens ring lateral wall 42 and the integrative manufacturing of second screens ring lateral wall 43 that this embodiment adopted form. The clamping ring bottom wall 41 is tightly abutted against the groove bottom wall of the annular clamping groove 5, the first clamping ring side wall 42 is tightly abutted against the side wall of one side of the annular clamping groove 5, and the second clamping ring side wall 43 is tightly abutted against the side wall of the other side of the annular clamping groove 5.
The side wall of the first retaining ring side wall 42 close to the side wall 43 of the second retaining ring is provided with a first retaining protrusion 44, the first retaining protrusion 44 is hemispherical, the first retaining protrusion 44 is also made of rubber, and the first retaining protrusion 44 and the first retaining ring side wall 42 are integrally manufactured. The side wall of the second retaining ring side wall 43 close to the first retaining ring side wall 42 is also provided with a second retaining projection 45, the second retaining projection 45 is hemispherical, the second retaining projection 45 is also made of rubber, and the second retaining projection 45 and the second retaining ring side wall 43 are integrally manufactured. There is the clearance between two adjacent first screens lugs 44, also has the clearance between two adjacent second screens lugs 45, and first screens lug 44 and second screens lug 45 dislocation set.
The inside of the clamping ring is clamped with a flow guide pipe 6. The honeycomb duct 6 is close to the one end joint of press head 3 and is had clamp plate 46, and clamp plate 46 is close to one of press head 3 and is served and install latch 47, offers the recess 48 that links to each other with latch 47 screens on the press head 3, and clamp plate 46 passes through latch 47 and links to each other with the press head 3 of offering recess 48.
The pressure plate 46 is rotatably provided with a locking sheet 49, the locking sheet 49 is L-shaped, the L-shaped locking sheet 49 comprises a first locking edge and a second locking edge, the first locking edge is vertically connected with the second locking edge, the first locking edge is hinged with the pressure plate 46, and the second locking edge is parallel to the upper surface of the pressing head 3. The second locking edge is provided with a locking convex block 50, the upper surface of the pressing head 3 is provided with a locking groove 51 connected with the locking convex block 50 in a clamping way, and the locking sheet 49 is connected with the pressing head 3 provided with the locking groove 51 in a clamping way through the locking convex block 50.
The side of the locking convex block 50 far away from the first locking edge is provided with a cushion block 52, the upper surface of the cushion block 52 is tightly propped against the lower surface of the second locking edge, and the lower surface of the cushion block 52 is connected with the top surface of the pressing head 3.
The drainage lug 53 is installed on the inside wall of honeycomb duct 6 near press head 3 one side, and drainage lug 53 is triangle-shaped, and the drainage lug 53 that this embodiment adopted forms with honeycomb duct 6 an organic whole manufacturing.
Examples 2-8 differ from example 1 in that: the second coating comprises the following raw materials in parts by mass:
comparative example
Comparative example 1 differs from example 1 in that the second coating layer is not coated on the first coating layer;
comparative example 2 differs from example 1 in that no pectin is added to the second coating.
Detection method
Antimicrobial detection
Taking 3 aerosol cans in example 1, comparative example 1 and comparative example 2 respectively, filling half volume of the same batch of freshly squeezed grape juice into the aerosol cans, then sealing the aerosol cans, placing the aerosol cans at a constant temperature of 40 ℃ for 10, 15 and 30 days, taking out the aerosol cans, measuring the average value of the alcohol content in the juice in the aerosol cans, and determining whether the juice is deteriorated; pour out the juice and observe whether the coating on the inner wall of the aerosol can softens.
And (4) conclusion: the high alcohol content indicates that the microorganisms decompose and ferment the fruit juice to produce alcohol, and the above alcohol test results show that the fruit juice in example 1 is not substantially deteriorated, while comparative example 1 and comparative example 2 are both deteriorated to different degrees after 10 days of storage, while the pectin has less influence on the deterioration of the fruit juice in the early stage by comparison between comparative example 1 and comparative example 2, but at 30d, the alcohol content in the fruit juice in the aerosol can without the second coating layer in comparative example 1 is not much as that in comparative example 2, indicating that the fruit juice in the aerosol can is not protected by the second coating layer due to the falling off of the second coating layer by the addition of the pectin, so that the second coating layer fails, the microorganisms increase, and the alcohol content increases.
And (4) conclusion: by comparing the second coating again, it can be seen that the second coating without pectin did peel off and the bacteriostatic effect of the second coating on the juice disappeared.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The preparation method of the fruit juice aerosol is characterized by comprising the following steps:
(1) preparing fresh juice;
(2) sterilizing the aerosol tank body (1) by a sterilizing device;
(3) canning the sterilized aerosol tank body (1) in an aseptic canning production workshop;
(4) sterilizing and disinfecting the produced fresh juice, and filling the juice into an aerosol tank body (1);
(5) finally, the aerosol tank body (1) filled with the fruit juice is sealed and filled with the propellant to prepare the fruit juice aerosol;
the sterilizing device in the step (2) comprises a box body (11), wherein a lifting mechanism is installed on the inner top wall of the box body (11), the lifting mechanism is connected with a supporting frame, the supporting frame is connected with an annular sterilizing cover (12), and an ultraviolet sterilizing lamp (13) is installed on the inner side wall of the annular sterilizing cover (12);
the support frame comprises a first support rod (14) and a second support rod (15), and the first support rod (14) and the second support rod (15) are vertically connected in a crossed manner; a first adjusting sleeve (16) is movably mounted at two ends of the first supporting rod (14), a second adjusting sleeve (17) is movably mounted at two ends of the second supporting rod (15), one end, far away from the first supporting rod (14), of the first adjusting sleeve (16) is connected with the inner side wall of the annular disinfection cover (12), and one end, far away from the second supporting rod (15), of the second adjusting sleeve (17) is connected with the inner side wall of the annular disinfection cover (12);
the fruit juice aerosol comprises a tank body (1), wherein a first coating is coated on the inner side wall of the tank body (1), and a second coating is coated on the first coating;
the first coating adopts an epoxy resin coating;
the second coating is composed of the following raw materials in percentage by mass:
20-40 parts of zein;
1-3 parts of lactic acid;
70-100 parts of ethanol.
2. The method for preparing a fruit juice aerosol according to claim 1, wherein: the second coating is composed of the following raw materials in percentage by mass:
3. the method for preparing a fruit juice aerosol according to claim 1, wherein: the ph of the fruit juice in the step (1) is less than 4.5.
4. The method for preparing a fruit juice aerosol according to claim 1, wherein: a first ozone flow channel (18) is formed in the first support rod (14), a second ozone flow channel (19) is formed in the second support rod (15), and the first ozone flow channel (18) is communicated with the second ozone flow channel (19); a first disinfection hole (20) communicated with the first ozone flow channel (18) is formed in the side wall, away from one side of the lifting mechanism, of the first supporting rod (14), and a second disinfection hole (21) communicated with the second ozone flow channel (19) is formed in the side wall, away from one side of the lifting mechanism, of the second supporting rod (15).
5. The method for preparing a fruit juice aerosol according to claim 1, wherein: and (3) the sterile air environment comprises a sterile canning production workshop (31), an air filtering mechanism is installed on the sterile canning production workshop (31), and a primary filter (32), a secondary filter (33) and a high-efficiency filter (34) are sequentially arranged on the air filtering mechanism from outside to inside.
6. The method for preparing a fruit juice aerosol according to claim 5, wherein: install ultraviolet lamp (35) in aseptic canning workshop (31) between primary filter (32) and medium efficiency filter (33), install infrared lamp (36) between medium efficiency filter (33) and high efficiency filter (34).
7. The method for preparing a fruit juice aerosol according to claim 1, wherein: and (5) the propellant is nitrogen, and the pressure is controlled to be 8-10 kg.
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Inventor after: Shao Qinghui Inventor after: Yang Biao Inventor after: Xu Zhen Inventor after: Gao Qi Inventor after: Yu Tiebiao Inventor before: Yang Biao Inventor before: Xu Zhen Inventor before: Gao Qi Inventor before: Yu Tiebiao Inventor before: Shao Qinghui |
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Denomination of invention: The invention relates to a fruit juice aerosol and a preparation method thereof Effective date of registration: 20211203 Granted publication date: 20210817 Pledgee: Ciwu sub branch of Zhejiang Zhuji Rural Commercial Bank Co., Ltd Pledgor: Aino Technology Co.,Ltd. Registration number: Y2021980013816 |