6results about How to "Extend freshness" patented technology

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 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 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.