136results about How to "Delayed maturation" patented technology

The invention relates to a controlled-bactericide-release fruit and vegetable preservative packaging composite film and a preparation method thereof. The innermost layer of the composite film is a controlled-release layer; the middle layer of the composite film is a bactericide generating layer; the outermost layer of composite film is a sulfur dioxide barrier layer and / or a printed layer; and the optional first additional layer is an ethylene absorbing layer. In a closed fruit preservative bag made of the fruit and vegetable preservative packaging composite film, a dynamic balance among (water vapor produced in the metabolism of fruits and organic acid produced by bacterium corrosion), the polarity of the inner-layer thin film and generation of sulfur dioxide at a certain concentration is achieved; and once the bacterium corrosion degree of the fruits increases, the balance is disturbed and lots of vapor and organic acids are produced. The substances can penetrate the inner layer to enter the middle layer to cause inorganic salts in the middle layer to decompose to give sulfur dioxide at a high concentration, and the sulfur dioxide can be released by penetrating the inner layer to kill bacteria; and when the fruit is not corroded by bacteria, the water vapor in the system induces the inner layer to produce low-concentration sulfur dioxide to protect the fruits from bacterium corrosion.

This invention concerns extrudates having high surface area materials and at least one metal ion adsorbed onto the high surface area material. The extrudates may be breathable films, multilayer laminates and pultruded articles. The extrudates may be made into storage and packaging material to reduce odor and retard the ripening of fruit. The extrudates, if in the form of a breathable film or multilayer laminate may be used as outer cover material for personal care products like diapers, adult incontinence products, training pants and the like. The high surface area particle-containing extrudate may be made by adding modified nanoparticles to a filler before the filler is treated with a fatty acid. Alternatively, a filler previously treated with a fatty acid may be modified by subjecting the filler to sonic energy in the presence of an aqueous solution of metal ions and nanoparticles.

The invention discloses a pinellia ternata planting method. The pinellia ternata planting method comprises the steps as follows: (1) growing a propagation material; (2) cultivating; (3) carrying out field management; and (4) harvesting. A pinellia ternata tuber with a diameter of 0.7-1.0 cm is adopted as a pinellia ternata seed source in the step (1) of growing the propagation material; the step (2) of cultivating comprises the sub-steps of selecting land, unpacking and planting; and planting land with a pH value of 6.0-7.5 is selected in the sub-step of selecting land. According to the pinellia ternata planting method, the pinellia ternata tuber with the diameter of 0.7-1.0 cm is adopted as the pinellia ternata seed source, and the soil with the pH value of 6.0-7.5 is adopted as the planting land for planting and cultivating pinellia ternata, so that the emergence rate of the pinellia ternata can be guaranteed, the soil requirement is low, the cost is reduced, and the yield is increased. According to the statistics, after the pinellia ternata planting method is adopted, the dry weight of the yield per mu (1 mu is 1 / 6 of acre) of the planted pinellia ternata can reach 220-260 kg / mu and is increased by 46.7% relative to that of the yield per mu of the conventional planted pinellia ternata. Therefore, the pinellia ternata planting method is suitable for large-scale planting.

Disclosed is an implantable material comprising a biocompatible matrix and cells which, when provided to a vascular access structure, can promote functionality generally. For example, implantable material of the present invention can enhance maturation of an arteriovenous native fistula as well as prolong the fistula in a mature, functional state suitable for dialysis. Additionally, the present invention can promote formation of a functional arteriovenous graft suitable for dialysis as well as promote formation of a functional peripheral bypass graft. Implantable material can be configured as a flexible planar form or a flowable composition with shape retaining properties suitable for implantation at, adjacent or in the vicinity of an anastomoses or arteriovenous graft. According to the methods disclosed herein, the implantable material is provided to an exterior surface of a blood vessel. Certain embodiments of the flexible planar form define a slot. The materials and methods of the present invention comprise cells, preferably endothelial cells or cells having an endothelial-like phenotype.

The invention discloses a modified-atmosphere preservation method for bitter gourds. The method includes the following steps of raw material pretreatment, bagging, gas-filled packaging, sterilization and storage and transportation. By adopting a modified-atmosphere packaging technology and adjusting gas compositions in a packaging storage environment, growth and metabolism of microorganisms can be effectively restrained; meanwhile, by controlling temperature and improving a pretreatment and packaging process, cold damage, ethylene ripening and decaying of the bitter gourds are avoided. According to the modified-atmosphere packaging technology, the non-poisonous, non-harmful and no-residual effects are achieved, non-harmful treatment is adopted in the whole preservation process, the usage of poisonous chemical agents is avoided, and therefore no harmful influence on the bitter gourds exists. By means of the method, the defects of the prior art are overcome, the original freshness, color and luster and flavor of the bitter gourds can be kept, the shelf life of the bitter gourds can be prolonged, and the easily appearing problems that due to extremely low O2 concentration and extremely high CO2 content, the bitter gourds suffer oxygen deficit, and breathing disorders are caused in the modified-atmosphere preservation process of the bitter gourds can be solved.

The invention relates to a device for preserving, sanitizing, ripening, and preventing or suppressing the growth of microbials within a package used for the transport and storage of various items, such as fresh fruits, vegetables, and other perishables and parcels. The device includes an enclosed container and at least one sack operably disposed adjacent the container, wherein the sack encloses an agent and the agent releases gases in the container upon the presence of humidity within the container.

The invention relates to the technical field of fruit and vegetable storage and fresh keeping, particularly to a bacterial inhibition and fresh keeping method for blackberry fruits. The method mainly comprises steps of blackberry fruit harvesting and treating, pre-cooling treatment, AITC fumigation treatment and sub-packaging, and low temperature storage, wherein the treatment concentration of an AITC essential oil during the AITC fumigation treatment achieves 5-15 mul / L. According to the present invention, the safe and natural plant-derived active substances are selected to carry out the fumigation treatment on the fruits so as to achieve the microorganism growth inhibition effect during the storage process, well maintain the blackberry fruit firmness, reduce the fruit decay rate, well maintain the fruit quality and prolong the storage period.

The invention discloses a method for preserving fruit. The method comprises the following steps: pre-treating the fruits, first refrigerating, second refrigerating, third refrigerating, aerating, sterilizing and completing. By using the method for preserving fruit, respiration and metabolism of the fruit can be effectively inhibited, so that ripening and aging of the fruit are postponed and quality of the fruit is maintained. According to the method, the fruit is pre-treated by gradual cooling, so that the fruit has a good adapting process to effectively avoid chilling injury caused by excessively low temperature of the refrigerator when the fruit enters the refrigerator for the first time; post-treatment of aerating is also utilized to suppress growth and metabolism speeds of the fruit, so that the fruit is effectively preserved. Innocent treatments are utilized in the whole preservation process of the method for preserving fruit, so that the method overcomes problems of multiple methods for preserving fruits, such as single preservation type, complex preservation method and impossible mixed preservation.

The invention discloses an anticorrosive storage method for helianthus tuberosus tubers. The method comprises the following steps of: flushing the surfaces of the tubers by using clear water after the tubers are harvested, and naturally airing the tubers; and soaking the tubers into CaCl2 or a maleic hydrazide solution, wherein the mass concentration of the CaCl2 solution is 0.12 to 0.48 percent, the mass concentration of the maleic hydrazide solution is 0.10 to 0.40 percent, and the soaking time is 5 to 30 minutes. The helianthus tuberosus can be harvested after the tubers are mature and can also be harvested before germination in the next year, and then the helianthus tuberosus is treated and stored; and the method is low in cost input, is easily mastered, is long in storage time, and can ensure the continuity of enterprise production and processing raw material supply.