33results about How to "Maintain storage quality" patented technology

The invention relates to the field of fruit and vegetable preservation and in particular relates to a biological preservation method for blueberry fruits. The method mainly comprises the steps of fumigating pre-cooled blueberries by jasmonic acid methyl ester. The method can be used for improving the resistance of the blueberry fruits, effectively preventing the rot of the fruits and prolonging the storage period of the fruits, is safe and efficient, and meets the food safety requirements; moreover, the blueberry fruits do not contain any preservative or chemical residues.

The invention relates to an environment-friendly and ecological orange preservation method and a preservative and belongs to the field of picked fruit and vegetable preservation. According to the method, firstly, fruits for storage are screened; the fruits are soaked in a solution containing polyaminopropyl biguanide for 1-2 minutes to be sterilized; the sterilized oranges are soaked in biological fresh-keeping liquor containing bacillus subtilis R31to be processed for 1-2 minutes; individual packing is conducted on the fruits through polyethylene bags. After oranges are preserved through the method, the purpose of environment-friendly and ecological preservation of oranges can be achieved, the effect equivalent to that of a chemical disinfectant is guaranteed, that is, the rotting rate of oranges is lowered, orange quality is maintained, the length for preservation is prolonged, the orange commodity value is guaranteed, and the market competitiveness of preserved commodities is improved while preservation through the chemical sterilization agent is avoided, residues are reduced, the food safety risk is lowered, consumption of the chemical disinfectant is reduced, influences on the ecology and the environment are reduced, and the method and the preservative are environmentally friendly, ecological and capable of protecting the environment. The method is suitable for industrial production and application and popularization and has good market popularization prospects.

The invention discloses a banana storage and transportation preservation method which comprises the following steps of: harvesting bananas, carrying out preservative and fresh-keeping treatment, pasting brands, packaging, precooling, storing and the like, namely, sterilizing and washing the bananas with the mature degree being 70-85% and without mechanical damage by using a 5-10mg / kg chlorine dioxide solution, subsequently putting the washed and drained bananas into a Chinese medicine herb extract solution with the concentration being 0.2-0.5% to be soaked for 3-8 minutes so as to carry out the preservative and fresh-keeping treatment; and pasting the brands, packaging and finally precooling and storing. According to the method, chlorine dioxide is used as a sterilizing agent, and the Chinese medicine herb extract solution is applied to the preservative and fresh-keeping treatment, so that the bananas are green, environment-friendly, free of chemical residue, good in preservation effect, long in preservation and freshness time, and applicable to long-distance storage and transportation when being exported and sold to other countries, and the method is easy to popularize.

The present invention discloses a control box, which can adjust the microenvironment parameters; the present invention aims at providing a box which can control the environment parameters internally and store different fruit and vegetables in the same refrigerator. The present invention comprises a box; the box is equipped with a voltage adjuster and an air inlet; the voltage adjuster is connectedwith a heater equipped in the box and the air inlet is connected with a control valve and an air inlet pipe. The box is equipped with a fan. With the control box of the present invention, different fruit and vegetables can be put in different control boxes and the control boxes can be put in the same refrigerator to ensure the storage quality of different fruit and vegetables. In this way, freezeinjury on fruit and vegetables can be prevented and the economical benefit can be increased. The present invention is especially fit for areas with compact space such as refrigeration space, machinerefrigeration space, etc.; the operation is simple and use is reliable. At the same time, the present invention is characterized by low cost, simple operation and convenient management.

The invention belongs to the field of fresh keeping of fruit and vegetables, and particularly discloses a fresh keeping method of fresh litchi fruit, which comprises the following steps that: 80 to 90 percent ripeness litchi fruit sequentially carries out pre-cooling, acidified calcium sulfate solution soaking, drying and package treatment and is then stored at 0 to 5 DEG C, wherein the pre-cooling treatment is the treatment for 20 to 30 min at 0 to 5 DEG C under the vacuum condition, the time of the acidified calcium sulfate solution soaking treatment is 2 to 3min, the drying treatment refers to the drying under the room temperature condition until no water drips drop from the surface of the litchi, and polyurethane (PE) perforated film bags are adopted for package. The fresh keeping method solves the safety problem caused by the sulphuration fresh keeping and antiseptic agents combined with the sulfur treatment technology, belongs to a safe and effective litchi fresh keeping method and is suitable for being popularized and applied by wide fruit farmers, sales persons and production enterprises, the fresh litchi fruit can be stored for 20 days at 5 DEG C, the rot rate is lower than 5 percent, and the nutrition quality index sulfide stress cracking (SSC) and the color indexes (L*, a* and the like) of the litchi are perfectly maintained, so the litchi quality and the browning are perfectly controlled.