13results about How to "Extend freshness" patented technology

The invention discloses a master batch with a food fresh-keeping function. The master batch comprises the following components: 40-80 parts of PE resin; 5 to 30 parts of a nano composite antibacterial agent; 0.1 to 5 parts of a surfactant; 2-10 parts of a polyolefin elastomer; 5-25 parts of an organic gas adsorption material; 5-20 parts of a microporous modified atmosphere material; 1-25 parts of an antifogging agent; 0.1 to 10 parts of a lubricant; 0.1-5 parts of a dispersant; 0.1 to 1 part of an antioxidant; 0.1 to 3 parts of absolute ethyl alcohol; and 80 to 300 parts of ultrapure water. The master batch with the food fresh-keeping function has a broad-spectrum antibacterial effect, can reduce the rotting rate, the weight loss rate and the loss rate of fruits and vegetables in the production circulation link, adsorbs organic gas generated by respiration of the fruits and the vegetables, spontaneously adjusts the gas concentration content, and prolongs the fresh-keeping time and the shelf life of the fruits and the vegetables.

The utility model belongs to the technical field of experimental equipment, and provides an environment-adjustable fresh-keeping device, which comprises a control console, a fresh-keeping box, a fresh-keeping box and a fresh-keeping box, the fresh-keeping box is internally provided with at least two layers of storage cavities, the front side of the fresh-keeping box is provided with a transparent window, and the transparent window is provided with a pick-and-place blocking window movably connected with the transparent window; the side box is provided with a refrigerating mechanism and a humidifying mechanism, and the refrigerating mechanism and the humidifying mechanism both communicate with the storage cavity; and an air inlet end is arranged in the storage cavity. The environment-adjustable fresh-keeping device is simple and compact in structure, the fresh-keeping time of fruits and vegetables can be prolonged, the fresh-keeping effect of the fruits and vegetables is improved, meanwhile, the research cost of fresh-keeping experiments of the fruits and vegetables is effectively reduced, experiments of the same experiment environment or different environment conditions can be carried out on different fruits and vegetables, the experiment efficiency is improved, and the experiment cost is reduced. And closed-loop feedback regulation and control is adopted for regulation and control of the fresh-keeping environment, accurate regulation and control of the fresh-keeping environment conditions are guaranteed, and therefore the accuracy and reliability of regulation of the fresh-keeping environment are improved.

The present invention belongs to the technical field of biological preservatives, and specifically relates to a double-coated nanoemulsion of clove essential oil, which comprises clove essential oil, ε-polylysine, whey protein, lecithin, and corn starch. The present invention also provides a preparation method of the nanoemulsion and its use as a donkey meat preservative. The double-coated nanoemulsion of clove essential oil of the present invention not only retains the excellent properties of the original nanoemulsion, but also slows down the increase of pH value, the proliferation of microorganisms, and the oxidation of lipids and proteins to a certain extent, and greatly prolongs the shelf life.

The utility model discloses a kind of display cabinets for food sales, including main body, closed mechanism, extension mechanism and display mechanism, the closed mechanism includes closure door and locking piece, the extension mechanism includes extension rod and positioning piece, the display mechanism includes show stand and display lamp, under the mutual cooperation of above mechanism, the device can avoid food exposed in air, prevent dust, bacteria, insect pollution, improve health safety, thereby prolong the fresh-keeping time of food, reduce waste, in addition, the device increases the effective display area of display cabinet, it is especially useful when large or food variety, temporarily expand space, no additional equipment is needed, high flexibility.

The utility model discloses a constant temperature distribution box relates to vegetables distribution technical field, aims at solving when distribution box is placed in outside environment, and the cold storage agent in the box can gradually melt, leads to heat to be unable to be delivered to the cold source depth efficiently, finally leads to the whole constant temperature performance to be not good, effective fresh -keeping time shortening's problem. Its technical scheme main points are: including the box with the side plate, the fixed connection with having a plurality of exhaust holes's fixed sheet of box inner wall, is installed between fixed sheet and the fan of box bottom. The utility model discloses a fan, gas pipe, the setting of heat conduction sheet, to this realizes the effect of the air in the box to carry out self -circulation, exports the hot gas in the box and converts into the cold gas again and then sends back to the box, realizes the temperature in the box always keeps low -temperature state, improves the constant temperature effect of distribution box, improves the fresh -keeping time of vegetables.

The invention provides a tremella aurantialba sourced fruit and vegetable fresh-keeping agent as well as a preparation method and application thereof, and belongs to the technical field of fruit and vegetable fresh-keeping agents. In the invention, the tremella aurantialba sporocarp is subjected to ultrasonic extraction with water, and then alcohol precipitation and drying are performed to obtain the tremella aurantialba-derived fruit and vegetable fresh-keeping agent disclosed by the invention. When fruits and vegetables are soaked in an aqueous solution of the tremella aurantialba sourced fruit and vegetable preservative, the preservation time and the storage period of the fruits and vegetables can be prolonged, the loss rate is reduced, the shelf life of the fruits and vegetables is prolonged, and economic benefits are improved. The fruit and vegetable fresh-keeping agent has the advantages of easily available raw materials, simple preparation method, natural components and no chemical residue, accords with the concept of green and pollution-free, and is suitable for large-scale popularization and application.

The embodiment of the application belongs to the technical field of packaging bags, and relates to a food packaging bag, which comprises an outer bag and an inner bag. The outer bag is a breathable bag, and the inner bag is a sealed bag. The inner bag is arranged in the outer bag and detachably connected with the outer bag through a first connecting structure. The technical scheme provided by the application can help better realize food preservation.

This utility model discloses a portable leek harvesting basket, including a harvesting basket body and a collection basket. The upper perimeter of the harvesting basket body contacts the lower perimeter of the collection basket. A fixing block is installed on the right side of the lower end of the harvesting basket body. Telescopic automatic adjustment rods are installed on the front and rear sides of the upper end of the fixing block. The beneficial effects of this utility model are: the combination design of the telescopic automatic adjustment rod and the universal wheels allows for flexible height adjustment according to user needs and easy movement, reducing the intensity of manual handling. It is especially suitable for harvesting operations in large-scale leek planting bases, greatly improving transportation efficiency. The precise fitting structure of the positioning groove and the positioning base, combined with the fixed connection method of the mounting block, ensures that the harvesting basket body, collection basket, universal wheels, and other components are firmly connected, without loosening or shaking during movement and loading, effectively preventing leek spillage and loss. The protective baffle forms a lateral barrier to prevent leeks from falling due to collision during transportation.

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 invention discloses a composite biological fresh-keeping agent for penaeus vannamei boone. The composite biological fresh-keeping agent is prepared from three biological fresh-keeping agents including tremella polysaccharide, Nisin and lysozyme, and water. The composite biological fresh-keeping agent is prepared from the following components in percentage by mass: 0.6% of tremella polysaccharide, 0.6% of vitamin C, 0.6% of vitamin C and the balance of water, wherein the total amount is 100% and the unit is g / ml; the content of the Nisin is 0.03%; the content of the lysozyme is 0.05%; and the balance of water. The composite preservative disclosed by the invention has the capabilities of resisting oxidation, destroying a microbial structure and inhibiting enzyme activity, so that the effects of preserving freshness and inhibiting blackening are achieved, and compared with a single biological preservative, the composite preservative disclosed by the invention is more remarkable in preservation effect.

The utility model provides an air curtain cabinet with a humidifying function, which comprises a cabinet body, a controller is arranged on the cabinet body, a plurality of layers of partition plates are arranged in the cabinet body, sensor matrixes are arranged on the partition plates, and the sensor matrixes are arranged along the direction perpendicular to the inner wall of the cabinet body and are respectively and electrically connected with the controller. A plurality of atomization nozzles are installed above the partition plate, the atomization nozzles are arranged on the inner wall of the cabinet body and are in one-to-one correspondence with the sensors, electromagnetic valves are arranged on the atomization nozzles, the electromagnetic valves are electrically connected with the controller, a water supply tank is arranged on one side of the cabinet body, a water pump is arranged in the water supply tank, and the water pump is electrically connected with the controller. The water pump is communicated with the atomization nozzles through a water pipe and electrically connected with the controller, when fruits and vegetables are placed on the partition plate and a signal of the sensor is cut off, the controller controls the atomization nozzles in the cut-off area to conduct regular spraying, and the fresh-keeping time of the fruits and vegetables is prolonged.

The invention discloses a forest-derived xylooligosaccharide-based edible preservative film and a preparation method thereof, and belongs to the technical field of food preservation. The preparation method comprises the following steps: mixing agar, gelatin, xylooligosaccharide and water, heating and stirring until the materials are dissolved, adding glycerol, and uniformly mixing to prepare a film forming solution; and defoaming, drying, refrigerating and forming the film forming liquid to obtain the forest-sourced xylooligosaccharide-based edible preservative film. The wood source waste hydrolysis extract xylooligosaccharide is adopted as the raw material, waste resource utilization is achieved, and compared with the current situation that an existing plastic preservative film depends on non-renewable petrochemical raw materials, the raw material cost is reduced, and resource waste is reduced; the environment-friendly plastic preservative film has the advantages that the plastic preservative film can be naturally degraded after being used, white pollution caused by plastic preservative film residues is avoided, and the environment-friendly trend is met, so that the environment-friendly plastic preservative film has remarkable environmental benefits.

This invention relates to a household airtight container, belonging to the general technology of food or food preservation. The handle (5) is used to press down the pressure plate (3) via the pressure rod (4), squeezing sterilized hawthorn berries into a straight container with the same cross-section on the inner wall. Honey is used to form a tightly packed, compacted, and flattened honey sealing layer on top of the hawthorn pulp. A counterweight anti-rising mechanism or a pressure plate locking mechanism prevents the pressure plate (3) from rising, maintaining the stability of the honey sealing layer and the hawthorn pulp below it during the storage period. Finally, the lid is tightened, achieving the purpose of long-term storage and preservation of the hawthorn pulp, allowing for convenient access and continued freshness.