20results about How to "Achieve freshness" patented technology

The invention belongs to the technical field of biological bacteriostasis and food packaging materials, and particularly relates to a carboxymethyl chitosan-covalent organic framework-nano-silver composite material and a preparation method and application thereof. According to the preparation method of the carboxymethyl chitosan-covalent organic framework-nano-silver composite material, provided by the invention, a metagen is adopted as a reducing agent, and AgNPs is synthesized through a biological method; the COF-AgNPs composite material is prepared by an in-situ growth method, and the ordered porous structure of the COF provides specific constraint for the AgNPs, so that aggregation of the AgNPs is effectively avoided; in addition, COF-AgNPs is added into a CMCS matrix, so that the film-forming ability of the COF-AgNPs is enhanced, and the CMCS matrix is endowed with excellent antibacterial performance and mechanical performance. Therefore, the composite film material prepared by adopting the preparation process can effectively improve the fresh-keeping effect of fruits and vegetables, and has a good application prospect in the field of packaging film materials for fruit and vegetable fresh-keeping.

The invention discloses a Nile blue dye and a preparation method thereof, a preparation method of a packaging film based on the prepared dye and application of the dye and the packaging film, and belongs to the technical field of food monitoring and preservation. Based on a Nile blue parent structure, different heavy atoms are introduced into a meso-position, and alkyl chains with different chain lengths are introduced into an amino position, so that various photosensitive dyes with pH response and photodynamic therapy capability are constructed. By comparing various heavy atom substitution structures, the dye I and the dye II have certain sensitivity to the pH value of a solution, and the sulfo-dye packaging film and the seleno-dye packaging film both show excellent antibacterial ability to escherichia coli. The dye I packaging film and the dye II packaging film have excellent bacteriostatic activity on escherichia coli. Visual detection of the rotting process of fresh shrimps and preservation of bananas can be realized.

The invention relates to the technical field of fresh-keeping equipment, and provides a fresh-keeping chamber structure, a refrigerator and a control method of the fresh-keeping chamber structure, the fresh-keeping chamber structure comprises a box body and a first magnet, and the box body defines a first chamber, a second chamber and a gas channel communicating the first chamber with the second chamber; the first magnet is arranged in the gas channel, the first magnet is used for generating a magnetic field so that oxygen in the first chamber can be adsorbed into the gas channel and conveyed into the second chamber, the first chamber and the second chamber are communicated through the gas channel, the magnetic field is generated through the first magnet, and the paramagnetism principle of oxygen is utilized. The oxygen in the first chamber is transferred into the gas channel and finally conveyed to the second chamber, the low-oxygen environment of the first chamber and the oxygen-enriched environment of the second chamber are achieved, fresh keeping of fruits, vegetables and meat can be conveniently achieved at the same time, and the fresh keeping effect is improved.

The present invention discloses a fish meat pickling device and a golden pomfret processing method based on the device, comprising a placing table, a processing box is arranged above the placing table, a conveying mechanism is arranged between the processing box and the placing table, a driving mechanism 1 connected to the conveying mechanism is arranged in the processing box, the conveying mechanism is lifted and lowered by the driving mechanism 1 to contact and move the fish meat on the placing table, a limiting mechanism is also arranged on the driving mechanism 1, a driving mechanism 2 is also arranged in the processing box, a pickling powder cutting integrated knife is arranged on the driving mechanism 2, a pickling box is arranged on the outer side of the processing box, and a spraying mechanism is arranged between the pickling box and the inside of the pickling powder cutting integrated knife. The present invention realizes the rapid pickling processing of golden pomfret fish meat, and can dry the inner surface of the fish meat, input pickling materials, and cut or chop the fish meat while pickling, and effectively ensures the pickling quality, and realizes the integrated automatic processing of conveying, cutting, pickling, and meat surface drying and freshness locking.

The invention relates to the field of aquatic product processing and preservation, and discloses a fish meat preservative and an application of an ATP associated compound in fresh fish meat preservation. The method for preserving freshness by using the ATP associated compound comprises the step of treating fish meat by using a solution containing the ATP associated compound and calcium ions. The ATP-associated compound can supplement energy consumed by the fish meat and reduce self energy loss, and when the ATP-associated compound is applied to refrigerated fish meat, the hardness of the fish meat can be remarkably improved, water loss of the fish meat is reduced, oxidative decay of the fish meat is inhibited, and the shelf life of products is prolonged.

The utility model discloses a fish oil processing tailing storage and distribution device which comprises a storage pool, at least two longitudinal grooves extending to the top of the storage pool are further formed in the inner side wall of the storage pool, so that at least one ice storage bin and at least one isolation bin are formed, and filtering partition walls are further arranged at the joints of the ice storage bin and the storage pool and the joints of the isolation bin and the storage pool respectively. A water pump is further arranged outside the storage pool, a pipe opening of the water pumping pipe is formed in the storage pool, a pipe opening of the water outlet pipe is formed in the isolation bin, the side wall of the storage pool further extends outwards to form a discharging table, the bottom of the discharging table extends to the bottom of the storage pool, a lifting ramp extending into the discharging table is arranged on the inner side wall of the storage pool, and the lowest position of the lifting ramp extends to the bottom of the storage pool. And a lifting device is arranged in the lifting ramp. According to the device, fresh-keeping storage and rapid separation of the tailings are realized, so that the freshness of the tailings is ensured, impurities are effectively removed from the tailings, and pure and low-grease raw materials are provided for the subsequent fish meal processing process.

The utility model discloses a protection fresh-keeping device for long-distance apple transportation, which comprises a bottom plate, the four corners of the bottom plate are fixedly connected with limiting frames, the limiting frames are uniformly provided with a plurality of limiting grooves, the limiting grooves are internally and movably provided with limiting rods matched with the limiting grooves, the limiting rods are movably provided with first packaging frames, and the first packaging frames are provided with second packaging frames. The outer wall of a foam box adheres to the inner wall of the first packaging frame, a plurality of semicircular supporting grooves are formed in the foam box, clamping grooves are correspondingly formed in the upper portions of the supporting grooves, the clamping grooves are formed in an air bag, and the air bag adheres to the inner wall of the second packaging frame and communicates with an air valve port. The second packaging frame and the first packaging frame are both provided with a plurality of air holes which are correspondingly communicated with the clamping grooves and the supporting grooves respectively, the protective fresh-keeping device for apple long-distance transportation can not only achieve protection needed in the apple transportation process, but also enable cold air in a transport vehicle to effectively wrap the apples through the air permeability of the protective fresh-keeping device, and therefore fresh keeping of the apples is achieved.

This utility model relates to the field of cold chain preservation technology and discloses a multi-layer cold chain preservation box structure, including a box body. A placement mechanism is provided on the inner bottom wall of the box body. A filter plate is fixedly connected inside the box body. A partition mechanism is provided inside the box body, near the filter plate. The placement mechanism includes a rotating plate, which is rotatably connected to the outer front side of the box body. A locking component is slidably connected inside the rotating plate. Two conveying pipes are fixedly connected to both sides of the inner wall of the box body. A top plate is fixedly connected to the top of the box body. In this utility model, part of the cold air released from the ice pack enters the conveying pipes, passes through the connecting block and connecting pipe, and is ejected from the holes, surrounding the top of the items. The remaining cold air rises through the filter plate, filling the upper space. Items are placed in layers within the spaces formed by the partition mechanism, and the cold air continuously circulates, completely surrounding the items.

The watering device comprises a placement table, and a placement plate is slidably mounted in an inner cavity of the placement table; the spraying mechanism is used for spraying the litchis; the spraying mechanism comprises a supporting plate, the supporting plate is fixedly mounted at the top of the swing table, a third groove is formed in the top of the supporting plate, and a sliding block is slidably mounted in an inner cavity of the third groove; a sliding block slides in an inner cavity of a third groove, at the moment, a second gear is driven by a rack to rotate, the second gear further drives a first gear to rotate, the first gear drives a first water pipe to rotate to the top of a containing plate, and the first water pipe is close to one side of a supporting plate before starting; water is conveyed into the inner cavity of the first water pipe through the second water pipe and finally sprayed out through the multiple sprayers, water spraying and fresh keeping work on litchis can be achieved, and the situation that water is wasted and sprayed to the periphery of the placement table, and a customer slips when getting close to the placement table can be avoided.

The invention belongs to the technical field of reconstituted tobacco production and processing, and particularly relates to a method for improving stability of a reconstituted tobacco concentrated solution and application. According to the method, the extracting solution obtained from the tobacco raw materials is subjected to multi-stage purification and concentration, the high-concentration concentrated solution and the second-stage condensate water are obtained, the stability of the concentrated solution is improved by adding the stabilizing medium, the concentration of the concentrated solution can be improved, the dispersion stability of macromolecular substances in the refrigeration process can be improved, sedimentation is avoided, and the quality of the macromolecular substances is improved. Meanwhile, high concentration is beneficial to improving the osmotic pressure of the concentrated solution and reducing the activity of microorganisms, compared with a conventional low-temperature preservation mode of the reconstituted tobacco concentrated solution, the method can achieve high-temperature concentrated solution preservation, and the storage time of the concentrated solution can be prolonged to 2 years or above. According to the method, the concentrated high-concentration concentrated solution is compounded with the condensed water containing the aromatic substances, and the compound can be used for preparing reconstituted tobacco cigarette products or adding the cigarette products, so that the quality of the cigarette products is improved.

The invention discloses a vegetable cold-chain fresh-keeping device and a cold-chain fresh-keeping storehouse. The vegetable cold-chain fresh-keeping device comprises a cargo distribution box and an assembly pipeline vertically fixed to the outer side wall of the cargo distribution box. The assembling plate blocks the end, away from the cargo distribution box, of the assembling pipeline, and cold air inlets and mounting holes are formed in the assembling plate and the side wall, corresponding to the assembling plate, of the cargo distribution box; the air inlet opening and closing assembly comprises a baffle, a push rod, a check ring and a return spring; the baffle hermetically covers the inner wall of the cargo distribution box, and the surface of the baffle can block a cold air inlet of the cargo distribution box; the push rod is slidably connected into the mounting holes of the cargo distribution box and the assembly plate, one end of the push rod is fixed to the baffle, the other end of the push rod is located outside the assembly pipeline, and the cold air inlet can be opened or closed through the baffle and the push rod. The cold-chain fresh-keeping storehouse comprises a warehouse, goods shelves and a cold air pipeline are arranged in the warehouse, the cold air pipeline is hermetically sleeved with the assembly pipeline, and the top plate can push the push rod to move. According to the invention, an efficient and ordered supply chain form of supplying and taking goods can be formed, and modular development of the cold chain library is realized.

The utility model discloses a high-frequency electric field emission system and a refrigeration mechanism. The high-frequency electric field emission system comprises a high-frequency electric field generation device and a wire. The high-frequency electric field generating device is used for generating a high-frequency electric field, one end of the wire is connected with the output end of the high-frequency electric field generating device, the other end of the wire is vacant, the wire is used for being arranged on the periphery of a storage room in a surrounding mode, and the resistance of the wire is increased along with rising of electromagnetic frequency. The lead can serve as an effective load and emit an electromagnetic field, so that the lead is used as an emitting device to release a high-frequency electric field to the storage chamber, and food preservation is achieved through the high-frequency electromagnetic field; and moreover, compared with the electrode plate, the lead is low in price, so that the production cost is greatly reduced while the preservation is realized.

The utility model relates to the technical field of tea storage equipment, in particular to a tea cabinet which comprises a tea cabinet body, a sliding door is hinged to the front face of the tea cabinet body, a handle is arranged in the middle of one side of the surface of the sliding door, and a display screen is arranged on the handle. A partition plate is arranged on the lower portion in the tea cabinet and divides the tea cabinet into a storage cavity and a lower cavity. A plurality of longitudinal supporting plate strip grooves are correspondingly formed in the two sides of the storage cavity, and movable supporting plates are clamped in the two corresponding longitudinal supporting plate strip grooves; grid windows are correspondingly arranged on the two sides of the rear face of the surface of the partition plate. The tea storage cabinet has the advantages that an ecological tea storage environment can be simulated, and corresponding storage environment conditions are set according to varieties of tea stored in the cabinet, so that fresh keeping of the tea can be realized to the greatest extent, and the storage quality of the tea is improved.

The invention discloses a refrigerator which comprises a water dispenser body which comprises a water injection port, a first water outlet and a second water outlet, and the water dispenser is used for being connected into a water pipe through the water injection port, carrying out hydrogenation treatment on water output by the water pipe and outputting treated drinking water through the first water outlet; the container body is internally provided with a containing space, and the containing space communicates with the second water outlet; the atomization module is arranged at the second water outlet, and the atomization module is used for carrying out atomization treatment on the treated water and adjusting the humidity in the containing space when the atomization module is in the first working mode; according to the technical scheme, the functions of fruit and vegetable preservation and healthy drinking of the hydrogen-rich water are achieved at the same time.

The invention relates to the technical field of soy sauce bottles, and discloses a double-channel fresh-keeping soy sauce bottle based on a blow molding method and a blow molding method thereof.The double-channel fresh-keeping soy sauce bottle comprises a bottle body, a storage mechanism is arranged in the bottle body and comprises an inner bag, a bottle plug is installed at the top of the inner bag, and the storage mechanism enables soy sauce not to make direct contact with the bottle body through the inner bag; a double-valve mechanism is arranged on the bottle plug, the double-valve mechanism comprises a silica gel breather valve and a silica gel retaining valve, and the double-valve mechanism controls the sealing performance of the bottle body and the inner bag through the silica gel breather valve and the silica gel retaining valve. The bottle body and the inner bag are separately treated, so that soy sauce is independently stored in the inner bag, the inner bag is kept closed when the bottle body and the inner bag are controlled to recover air pressure through the silica gel breather valve and the silica gel retaining valve, air is effectively prevented from entering the inner bag, and then the soy sauce is kept fresh, and use of preservatives is avoided.

The application provides a fresh-keeping device and a refrigerator. The fresh-keeping device comprises a storage container having a storage space; a humidity sensor configured to detect the humidity in the storage space; and a moisture absorption assembly comprising a housing and a moisture absorption element arranged in the housing. The housing is embedded in the storage container and is provided with a moisture absorption hole in communication with the storage space and a moisture removal hole in communication between the housing and the outside of the storage container. The moisture absorption assembly further comprises a moisture absorption valve and a moisture removal valve. The moisture absorption valve is configured to open and close according to the humidity in the storage space detected by the humidity sensor, and the moisture removal valve is configured to open and close according to the water absorption amount of the moisture absorption element. The moisture absorption assembly and the humidity sensor are used to realize moisture removal in the storage space, and the humidity can be discharged. The dry environment of the storage space can be realized to preserve dry food materials, and new problems caused by humidity accumulation can be avoided, thereby expanding the use scenarios of the refrigerator and improving the user experience.

The invention relates to an online fresh-keeping treatment system and method on a fruit and vegetable sorting line, and belongs to the field of fruit and vegetable fresh-keeping, a treatment cavity is arranged on a conveying belt of the fruit and vegetable sorting line, a gas isolation device, a monitoring device and a discharge module are arranged in the treatment cavity, and the discharge module is powered by a high-voltage power supply module; the system further comprises a component adjusting module and an intelligent control module. The intelligent control module is in signal connection with the monitoring device, the high-voltage power supply module, the component adjusting module and the conveyor belt. Active components are accurately kept within a fixed concentration range in real time by controlling the discharging module and the component adjusting module, and differentiated uninterrupted fruit and vegetable fresh-keeping treatment is achieved by controlling the conveying speed of the conveying belt according to different fruit and vegetable types.

The embodiment of the application discloses a reservation fresh-keeping method and device, a cooking equipment, a storage medium and a program product. The reservation fresh-keeping method comprises the following steps: in response to a reservation event, determining a reservation duration associated with the reservation event; controlling a temperature measuring component to obtain a current temperature of a cooking cavity; based on the current temperature and the reservation duration, controlling a pressure component to run at least one operation cycle within a preset time interval, so that the pressure of the cooking cavity changes, the growth of microorganisms in the cooking cavity is inhibited, and the fresh-keeping of food materials in the cooking cavity is realized; the operation cycle comprises a pressure reduction stage and a pressure increase stage.

The embodiment of the application provides a kind of oven and its control method, it is related to oven technical field, for the preservation of food material in cooking process, to improve the taste of dish.The oven includes: oven body, with the inner cavity of opening;Oxygen sensor, for detecting the oxygen content of air in the inner cavity;Gas separation system, for extracting air in the inner cavity;The oxygen filtration treatment of air extracted;The filtered oxygen after air is recharged into the inner cavity;Controller is configured to: receive the starting instruction of low-oxygen cooking mode;In response to the starting instruction of low-oxygen cooking mode, the oxygen content of air in the inner cavity is obtained by oxygen sensor;When the oxygen content of air in the inner cavity is greater than the first oxygen content threshold, control gas separation system to work, so that the oxygen content of air in the inner cavity is reduced to the first oxygen content threshold.

The invention relates to the technical field of preservation, and discloses a sweet potato peel-based polyphenol substance extraction process and application thereof, and the extraction process comprises the following steps: S1, pretreatment; s2, freezing; s3, grinding is conducted; s4, filtering; s5, soaking; s6, heating is conducted; s7, performing centrifugation; s8, suction filtration; s9, evaporating and concentrating; s10, performing purification; and S11, freezing to obtain a finished product. According to the extraction process of the polyphenols based on the sweet potato peels, the polyphenols can be extracted from the sweet potato peels, the extraction efficiency is high, the extracted polyphenols are high in antioxidant activity effect, and fresh milk can be kept fresh through application of the polyphenols.