CN112401130A - Method for making freeze-dried bean curd sticks - Google Patents
Method for making freeze-dried bean curd sticks Download PDFInfo
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- CN112401130A CN112401130A CN202011303593.0A CN202011303593A CN112401130A CN 112401130 A CN112401130 A CN 112401130A CN 202011303593 A CN202011303593 A CN 202011303593A CN 112401130 A CN112401130 A CN 112401130A
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- bean curd
- freeze
- juice
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C20/00—Cheese substitutes
- A23C20/02—Cheese substitutes containing neither milk components, nor caseinate, nor lactose, as sources of fats, proteins or carbohydrates
- A23C20/025—Cheese substitutes containing neither milk components, nor caseinate, nor lactose, as sources of fats, proteins or carbohydrates mainly containing proteins from pulses or oilseeds
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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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
- A23L3/44—Freeze-drying
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Beans For Foods Or Fodder (AREA)
Abstract
The invention discloses a method for preparing freeze-dried bean curd sticks, which comprises a freeze dryer body, the method comprises the steps of selecting soybeans with full grains, soaking the soybeans in clear water, pulping in pulping equipment, filtering juice through filtering equipment, putting the filtered juice into a special pulp cooking pot, forming a bean curd stick film on the surface of the cooled juice, putting the drained bean curd stick film into a placing groove, starting a freezing fan to freeze the moisture in the bean curd stick film, keeping the bean curd sticks dry, putting the freeze-dried bean curd sticks into a packaging bag, sealing the packaging bag, quantitatively weighing the bean curd sticks, sealing the packaging bag according to the order requirement, and warehousing, wherein the structure ensures that the bean curd sticks are dried in a frozen state, can keep the volume of the bean curd sticks unchanged, keeps the nutrition in the bean curd sticks and simultaneously ensures that microorganisms and molds cannot grow, the freeze-dried bean curd sticks can be stored at normal temperature.
Description
Technical Field
The invention relates to the technical field of freeze-dried bean curd sticks, and particularly relates to a manufacturing method of freeze-dried bean curd sticks.
Background
The bean curd stick is a kind of bean product made of soybean, black bean and mung bean, and is made up through such technological steps as grinding soybean into soybean milk, boiling, holding temp for a certain time to form a film on its surface, picking out, naturally sagging to become strips or sheets, and drying.
But in the manufacturing process of freeze-drying dried bean curd stick, need dry or dry the operation with the dried bean curd stick after the shaping, but ordinary stoving or dry the step, need spend more time, it can cause the reduction of dried bean curd stick volume to dry or dry, when absorbing water and recovering, will spend more time again, the high temperature of stoving can also cause the nutrition loss of dried bean curd stick simultaneously, and when drying, microorganism and mould still can be attached to the surface of dried bean curd stick, in the storage process afterwards, microorganism and mould on the dried bean curd stick are more inconvenient to be got rid of, the effect of saving is not good.
Disclosure of Invention
The invention aims to provide a method for preparing freeze-dried bean curd sticks, which can dry bean curd sticks in a frozen state, keep the volume of the bean curd sticks unchanged, keep the nutrition in the bean curd sticks, simultaneously prevent microorganisms and mould from growing, and store the freeze-dried bean curd sticks at normal temperature so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for preparing freeze-dried bean curd sticks comprises the following steps:
the method comprises the following steps: selecting plump soybeans, peeling the soybeans, soaking the soybeans in clear water, and making the soybeans swell to make the soybeans fully absorb water;
step two: taking out soybeans, placing the soybeans in pulping equipment for pulping, generating juice in the pulping process, introducing the juice into filtering equipment after the juice is generated, filtering the juice through the filtering equipment, reserving the filtered juice for later use, and simultaneously repeating the filtering process of filtered pulp residues once to maximally take out the juice;
step three: putting the filtered juice into a special pulp cooking pot, adjusting the temperature of the pulp cooking pot, slowly cooking the juice, and cooling the juice for later use after cooking;
step four: taking out the dried beancurd stick film from the juice by adopting a special peeling device, and draining for later use;
step five: placing the drained bean curd stick film which is basically formed into a freeze dryer body, freeze-drying the bean curd stick film in a vacuum environment in the freeze dryer body, freezing the moisture in the bean curd stick film, and keeping the bean curd sticks dry;
step six: putting the freeze-dried beancurd sticks into a packaging bag, sealing the packaging bag, quantitatively weighing the beancurd sticks, sealing boxes according to the requirements of orders and warehousing
Preferably, the freeze dryer body includes frame, flip, buttcover plate, butt joint magnetite, butt joint groove, location magnetite and freeze-drying seat, the front end of frame is equipped with flip, flip passes through hinge chain movable mounting on the frame, flip's top fixed mounting has the buttcover plate, the inboard of butt joint plate is equipped with the butt joint magnetite, the butt joint groove has been seted up on the frame, the inside in butt joint groove is equipped with the location magnetite, location magnetite fixed mounting is on the frame, the inside of frame is equipped with freeze-drying seat.
Preferably, the freeze-drying seat includes the whole board of activity, freezes fan, connecting piece, threaded rod and driving motor, the inboard of the whole board of activity is equipped with freezes the fan, the both sides of the whole board of activity all are equipped with the connecting piece, the connecting piece is run through by the threaded rod, the one end and the driving motor of threaded rod are connected, the other end of threaded rod passes through bearing frame movable mounting on the frame.
Preferably, the movable whole plate comprises a plate body, a placing frame, a placing groove and side baffles, the placing frame is fixedly mounted at the top end of the plate body, the placing groove is formed in the inner side of the placing frame, and the side baffles are arranged on two sides of the placing frame.
Preferably, the connecting piece is including connecting short slab, screw hole, extension board and fixed plate, connect the inside set up screw hole of short slab, the one end fixedly connected with extension board of connecting the short slab, the one end fixedly connected with fixed plate of connecting the short slab is kept away from to the extension board, fixed plate fixed mounting is on the plate body.
Preferably, the internal thread in the threaded hole is meshed with the external thread on the threaded rod, and the threaded rod penetrates through the threaded hole and is movably mounted on the connecting short plate.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a method for preparing freeze-dried bean curd sticks, which comprises the steps of selecting soybeans with full grains, peeling the soybeans, soaking the soybeans in clear water, soaking the soybeans until the soybeans are swelled to absorb water, taking out the soybeans, placing the soybeans in a pulping device for pulping, continuously generating juice in the pulping process, introducing the juice into a filtering device after the juice is generated, filtering the juice by the filtering device, reserving the filtered juice for later use, repeating the filtering process for once on the filtered pulp residue, taking out the juice to the maximum extent, placing the filtered juice into a special cooking pot, adjusting the temperature of the cooking pot, slowly cooking the juice, cooling the juice for later use after cooking, generating a bean curd stick film on the surface of the cooled juice, taking out the bean curd stick film from the juice by using a special peeling device, draining for later use, starting a driving motor, the drive motor drives the threaded rod to rotate, the connecting short plate moves on the threaded rod through the threaded hole, the plate body is arranged outside the outer frame, the dried bean curd stick film after draining is placed in the placing groove, the plate body is withdrawn, the turnover cover is turned over to enable the butt joint magnet and the positioning magnet to be adsorbed and sealed, the air inside the outer frame is pumped out through the vacuum pump at the top of the outer frame, the freezing fan is started to freeze moisture in the bean curd stick film, dried bean curd sticks are kept dry, the dried bean curd sticks after freeze-drying are placed in the packaging bag, the packaging bag is sealed, the dried bean curd sticks are quantitatively weighed and are sealed and warehoused according to order demands, the structure enables the dried bean curd sticks to be dried in a frozen state, the size of the dried bean curd sticks can be kept unchanged, nutrition in the dried bean curd sticks is reserved, microorganisms and mould cannot grow simultaneously, and the dried bean curd sticks after freeze-drying can be stored at normal.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic structural diagram of the main body of the freeze dryer of the present invention;
FIG. 4 is a schematic structural view of a lyophilization nest according to the present invention;
FIG. 5 is a schematic view of the structure of the movable plate of the present invention;
fig. 6 is a schematic structural view of the connector of the present invention.
In the figure: 1. a freeze dryer body; 11. an outer frame; 12. a cover is turned; 13. a butt plate; 14. butting the magnets; 15. a butt joint groove; 16. positioning a magnet; 17. a freeze-drying seat; 171. moving the whole plate; 1711. a plate body; 1712. placing a rack; 1713. a placement groove; 1714. a side dam; 172. freezing a fan; 173. a connecting member; 1731. connecting the short plates; 1732. a threaded hole; 1733. an extension plate; 1734. a fixing plate; 174. a threaded rod; 175. the motor is driven.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a method for making freeze-dried bean curd sticks includes the following steps:
the method comprises the following steps: selecting plump soybeans, peeling the soybeans, soaking the soybeans in clear water, and making the soybeans swell to make the soybeans fully absorb water;
step two: taking out soybeans, placing the soybeans in pulping equipment for pulping, generating juice in the pulping process, introducing the juice into filtering equipment after the juice is generated, filtering the juice through the filtering equipment, reserving the filtered juice for later use, and simultaneously repeating the filtering process of filtered pulp residues once to maximally take out the juice;
step three: putting the filtered juice into a special pulp cooking pot, adjusting the temperature of the pulp cooking pot, slowly cooking the juice, and cooling the juice for later use after cooking;
step four: taking out the dried beancurd stick film from the juice by adopting a special peeling device, and draining for later use;
step five: placing the drained and basically formed bean curd stick thin film into a freeze dryer body 1, freeze-drying the bean curd stick thin film in a vacuum environment inside the freeze dryer body 1, freezing the moisture in the bean curd stick thin film, and keeping the bean curd sticks dry;
step six: and (3) placing the freeze-dried bean curd sticks into a packaging bag, sealing the packaging bag, then quantitatively weighing the bean curd sticks, and sealing and warehousing according to the order requirements.
Referring to fig. 2-3, the freeze dryer body 1 includes an outer frame 11, a flip cover 12, a docking plate 13, a docking magnet 14, a docking groove 15, a positioning magnet 16 and a freeze drying seat 17, the flip cover 12 is disposed at the front end of the outer frame 11, the flip cover 12 is movably mounted on the outer frame 11 through a hinge chain, the docking plate 13 is fixedly mounted at the top end of the flip cover 12, the docking magnet 14 is disposed at the inner side of the docking plate 13, the docking groove 15 is disposed on the outer frame 11, the positioning magnet 16 is disposed inside the docking groove 15, the positioning magnet 16 is fixedly mounted on the outer frame 11, and the freeze drying seat 17 is disposed inside the outer frame.
Referring to fig. 4-6, the freeze-drying seat 17 includes a movable plate 171, a freezing fan 172, a connecting member 173, a threaded rod 174, and a driving motor 175, the freezing fan 172 is disposed inside the movable plate 171, the connecting members 173 are disposed on both sides of the movable plate 171, the connecting members 173 are penetrated by the threaded rod 174, one end of the threaded rod 174 is connected to the driving motor 175, and the other end of the threaded rod 174 is movably mounted on the outer frame 11 through a bearing seat. The movable whole plate 171 comprises a plate body 1711, a placing frame 1712, a placing groove 1713 and side baffles 1714, the top end fixed mounting of the plate body 1711 is provided with the placing groove 1712, the inner side of the placing frame 1712 is provided with the placing groove 1713, both sides of the placing frame 1712 are provided with the side baffles 1714, the connecting piece 173 comprises a connecting short plate 1731, a threaded hole 1732, an extending plate 1733 and a fixing plate 1734, the connecting short plate 1731 is internally provided with a threaded hole 1732, internal threads inside the threaded hole 1732 are mutually meshed with external threads on the threaded rod 174, the threaded rod 174 penetrates through the threaded hole 1732 and is movably mounted on the connecting short plate 1731, one end of the connecting short plate 1731 is fixedly connected with the extending plate 1733, one end of the extending plate 1733 far away from the connecting short plate 1731 is fixedly connected with.
The working principle of the invention is as follows: selecting full-grain soybeans, peeling the soybeans, soaking the peeled soybeans in clear water, soaking the soybeans until the soybeans are swelled to enable the soybeans to absorb water fully, fishing out the soybeans, placing the soybeans in a pulping device for pulping, continuously generating juice in the pulping process, introducing the juice into a filtering device after the juice is generated, filtering the juice through the filtering device, reserving the filtered juice for later use, repeating the filtering process for once on the filtered pulp residues, taking out the juice to the maximum extent, placing the filtered juice into a special pulp cooking pot, adjusting the temperature of the pulp cooking pot, slowly cooking the juice, cooling the juice for later use after cooking, enabling a dried beancurd stick film to appear on the surface of the cooled juice, adopting a professional peeling device, fishing out the dried beancurd film from the juice, draining for later use, starting a driving motor 175, driving a threaded rod 174 to rotate, connecting short plate 1731 and moving on threaded rod 174 through threaded hole 1732, make plate 1711 arrange in the outside of frame 11 in, put the dried bean curd stick film into standing groove 1713, withdraw plate 1711, turn flip 12 and make butt joint magnetite 14 and location magnetite 16 adsorb mutually and realize sealing, evacuate the inside air of frame 11 through the vacuum pump machine at frame 11 top, start freezing fan 172 and freeze the moisture content in the bean curd stick film, and keep the dried bean curd stick dry, place the dried bean curd stick into the encapsulation bag after will freeze drying, seal the encapsulation bag after, weigh the dried bean curd stick quantitatively, and seal the case and put in storage according to the order demand.
In summary, the following steps: selecting full-grain soybeans, peeling the soybeans, soaking the peeled soybeans in clear water, soaking the soybeans until the soybeans are swelled to enable the soybeans to absorb water fully, fishing out the soybeans, placing the soybeans in a pulping device for pulping, continuously generating juice in the pulping process, introducing the juice into a filtering device after the juice is generated, filtering the juice through the filtering device, reserving the filtered juice for later use, repeating the filtering process for once on the filtered pulp residues, taking out the juice to the maximum extent, placing the filtered juice into a special pulp cooking pot, adjusting the temperature of the pulp cooking pot, slowly cooking the juice, cooling the juice for later use after cooking, enabling a dried beancurd stick film to appear on the surface of the cooled juice, adopting a professional peeling device, fishing out the dried beancurd film from the juice, draining for later use, starting a driving motor 175, driving a threaded rod 174 to rotate, the connecting short plate 1731 moves on the threaded rod 174 through the threaded hole 1732, so that the plate body 1711 is arranged outside the outer frame 11, the drained bean curd stick film is placed in the placing groove 1713, the plate body 1711 is withdrawn, the flip cover 12 is turned over to enable the butt joint magnet 14 and the positioning magnet 16 to be adsorbed and sealed, air inside the outer frame 11 is evacuated through a vacuum pump at the top of the outer frame 11, the freezing fan 172 is started to freeze moisture in the bean curd stick film, the bean curd sticks are kept dry, the freeze-dried bean curd sticks are placed in the packaging bag, after the packaging bag is sealed, the bean curd sticks are weighed quantitatively, and the packaging bag is sealed and put in storage according to order requirements.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. A method for preparing freeze-dried bean curd sticks is characterized by comprising the following steps:
s1: selecting plump soybeans, peeling the soybeans, soaking the soybeans in clear water, and making the soybeans swell to make the soybeans fully absorb water;
s2: taking out soybeans, placing the soybeans in pulping equipment for pulping, generating juice in the pulping process, introducing the juice into filtering equipment after the juice is generated, filtering the juice through the filtering equipment, reserving the filtered juice for later use, and simultaneously repeating the filtering process of filtered pulp residues once to maximally take out the juice;
s3: putting the filtered juice into a special pulp cooking pot, adjusting the temperature of the pulp cooking pot, slowly cooking the juice, and cooling the juice for later use after cooking;
s4: taking out the dried beancurd stick film from the juice by adopting a special peeling device, and draining for later use;
s5: placing the drained and basically formed bean curd stick thin film into a freeze dryer body (1), freeze-drying the bean curd stick thin film in a vacuum environment inside the freeze dryer body (1), freezing water in the bean curd stick thin film, and keeping the bean curd sticks dry;
s6: and (3) placing the freeze-dried bean curd sticks into a packaging bag, sealing the packaging bag, then quantitatively weighing the bean curd sticks, and sealing and warehousing according to the order requirements.
2. The manufacturing method of the freeze-dried bean curd sticks as claimed in claim 1, wherein the freeze dryer body (1) comprises an outer frame (11), a flip cover (12), a butt plate (13), butt joint magnets (14), butt joint grooves (15), positioning magnets (16) and a freeze-drying seat (17), the flip cover (12) is arranged at the front end of the outer frame (11), the flip cover (12) is movably mounted on the outer frame (11) through a hinge chain, the butt joint plate (13) is fixedly mounted at the top end of the flip cover (12), the butt joint magnets (14) are arranged on the inner side of the butt joint plate (13), the butt joint grooves (15) are formed in the outer frame (11), the positioning magnets (16) are arranged inside the butt joint grooves (15), the positioning magnets (16) are fixedly mounted on the outer frame (11), and the freeze-drying seat (17) is arranged inside the outer frame (11).
3. The method for making the freeze-dried bean curd sticks as claimed in claim 2, wherein the freeze-drying seat (17) comprises a movable whole plate (171), a freezing fan (172), a connecting piece (173), a threaded rod (174) and a driving motor (175), the freezing fan (172) is arranged on the inner side of the movable whole plate (171), the connecting pieces (173) are arranged on both sides of the movable whole plate (171), the connecting pieces (173) are penetrated by the threaded rod (174), one end of the threaded rod (174) is connected with the driving motor (175), and the other end of the threaded rod (174) is movably mounted on the outer frame (11) through a bearing seat.
4. The method for making freeze-dried bean curd sticks as claimed in claim 3, wherein the movable whole plate (171) comprises a plate body (1711), a placing frame (1712), a placing groove (1713) and side baffles (1714), the placing frame (1712) is fixedly installed at the top end of the plate body (1711), the placing groove (1713) is arranged on the inner side of the placing frame (1712), and the side baffles (1714) are arranged on both sides of the placing frame (1712).
5. The manufacturing method of the freeze-dried bean curd sticks as claimed in claim 3, wherein the connecting piece (173) comprises a connecting short plate (1731), a threaded hole (1732), an extending plate (1733) and a fixing plate (1734), the threaded hole (1732) is formed in the connecting short plate (1731), the extending plate (1733) is fixedly connected to one end of the connecting short plate (1731), the fixing plate (1734) is fixedly connected to one end of the extending plate (1733) far away from the connecting short plate (1731), and the fixing plate (1734) is fixedly installed on the plate body (1711).
6. The method for making freeze-dried bean curd sticks as claimed in claim 5, wherein the internal thread inside the threaded hole (1732) is engaged with the external thread on the threaded rod (174), and the threaded rod (174) is movably mounted on the connecting short plate (1731) through the threaded hole (1732).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011303593.0A CN112401130A (en) | 2020-11-19 | 2020-11-19 | Method for making freeze-dried bean curd sticks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011303593.0A CN112401130A (en) | 2020-11-19 | 2020-11-19 | Method for making freeze-dried bean curd sticks |
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| Publication Number | Publication Date |
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| CN112401130A true CN112401130A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011303593.0A Pending CN112401130A (en) | 2020-11-19 | 2020-11-19 | Method for making freeze-dried bean curd sticks |
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| CN105831261A (en) * | 2016-04-06 | 2016-08-10 | 张保义 | Radiation prevention bean curd stick |
| CN107157347A (en) * | 2017-07-25 | 2017-09-15 | 佛山市正略信息科技有限公司 | It is a kind of can automatic push electric oven |
| CN207907593U (en) * | 2018-02-24 | 2018-09-25 | 北京欣科思达医药科技有限公司 | A kind of vacuum freeze drier |
| CN208822495U (en) * | 2018-06-08 | 2019-05-07 | 宁波欧燕电器有限公司 | A kind of electric oven and integrated kitchen range |
| CN209639413U (en) * | 2019-03-04 | 2019-11-15 | 灵璧县德军家具制造有限公司 | A kind of case for drying sheet material |
| CN210602542U (en) * | 2019-10-15 | 2020-05-22 | 苏州锦宏达精密科技有限公司 | Plastic product drying device |
| CN210832768U (en) * | 2019-09-19 | 2020-06-23 | 福建省永安市智源生化有限公司 | High-durability vacuum freeze dryer |
| CN211380127U (en) * | 2019-09-05 | 2020-09-01 | 东莞市众森家具有限公司 | Furniture is with having intelligent tea table of display screen |
| CN211625898U (en) * | 2019-12-02 | 2020-10-02 | 深圳市怡和兴机电科技有限公司 | Industrial oven with automatic material feeding and discharging function |
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2020
- 2020-11-19 CN CN202011303593.0A patent/CN112401130A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105831261A (en) * | 2016-04-06 | 2016-08-10 | 张保义 | Radiation prevention bean curd stick |
| CN107157347A (en) * | 2017-07-25 | 2017-09-15 | 佛山市正略信息科技有限公司 | It is a kind of can automatic push electric oven |
| CN207907593U (en) * | 2018-02-24 | 2018-09-25 | 北京欣科思达医药科技有限公司 | A kind of vacuum freeze drier |
| CN208822495U (en) * | 2018-06-08 | 2019-05-07 | 宁波欧燕电器有限公司 | A kind of electric oven and integrated kitchen range |
| CN209639413U (en) * | 2019-03-04 | 2019-11-15 | 灵璧县德军家具制造有限公司 | A kind of case for drying sheet material |
| CN211380127U (en) * | 2019-09-05 | 2020-09-01 | 东莞市众森家具有限公司 | Furniture is with having intelligent tea table of display screen |
| CN210832768U (en) * | 2019-09-19 | 2020-06-23 | 福建省永安市智源生化有限公司 | High-durability vacuum freeze dryer |
| CN210602542U (en) * | 2019-10-15 | 2020-05-22 | 苏州锦宏达精密科技有限公司 | Plastic product drying device |
| CN211625898U (en) * | 2019-12-02 | 2020-10-02 | 深圳市怡和兴机电科技有限公司 | Industrial oven with automatic material feeding and discharging function |
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