39results about How to "Improve shelf life" patented technology

The invention relates to the field of medical devices, and more specifically discloses a biodegradable stent based on a modified polylactic acid or a polylactic acid copolymer, and a preparation method thereof. According to the present invention, a linear polylactic acid or polylactic acid copolymer with a high molecular weight is blended with a biodegradable cross-linking agent, injection extrusion, injection molding or other processing methods are adopted to prepare a pipe material, the pipe material is subjected to a cross-linking polymerization reaction to form a semi-interpenetrating polymer network, and finally laser cutting is adopted to obtain the stent. The stent has characteristics of sufficient mechanical strength, sufficient structural stability, and improved processability.

The invention relates to a method for preserving and ripening bananas. The method comprises the following steps: (1), harvesting raw materials which meet the harvest standards; (2), performing pretreatment before preservation by soaking fruits in a pretreatment agent; (3), treating with an edible coating agent; (4), treating the fruits with an ethylene absorbent; (5), packing the fruits with antifogging preservation bags; (6) preserving at an appropriate low temperature; (7), performing preservation-stage management; and (8), ripening before sale. The method provided by the invention prolongs the fresh-keeping period of banana fruit preservation to the greatest extent, greatly improves the commercial quality of bananas by the scientific and reasonable ripening technology, and increases the economic benefits.

The invention provides a conditioner for improving the high temperature resistance of corn and a preparing method and application thereof, and belongs to the technical field of corn culture. Per 100 mL of an aqueous conditioner is prepared from 0.5-4 g of fulvic acid with the purity larger than or equal to 96%, 0.5-2 g of chitosan with the purity larger than or equal to 96%, 5-15 g of choline chloride with the purity larger than or equal to 75%, 1-5 g of ethephon with the purity larger than or equal to 80%, 0.1-1 g of acetylsalicylic acid with the purity larger than or equal to 96% and 0.1-1 gof borax with the purity larger than or equal to 96%. Per 100 g of a powder conditioner is prepared from 5-10 g of dipotassium glycyrrhizinate with the purity larger than or equal to 98%, 0.1-2 g ofcompound vitamin B with the purity larger than or equal to 96%, 40-50 g of anhydrous monopotassium phosphate with the purity larger than or equal to 98%, 20-30 g of anhydrous zinc sulfate with the purity larger than or equal to 96%, 1-5 g of anhydrous molybdenum sulfate with the purity larger than 96% and the balance anhydrous magnesium sulfate. The conditioner can significantly improve the high temperature resistance of the corn.

The present invention relates to the technical field of biological sample testing, and particularly to a reagent reaction kit and application thereof to biological sample detection. The reagent reaction kit comprises a reagent storage portion, a reagent release portion and a reaction portion. The reagent storage portion, reagent release portion and the reaction portion are disposed inside the reaction kit; the reagent storage portion comprises at least one reagent receiving chamber sealed by a sealing member; the reagent release portion comprises a push rod capable of moving relatively to the reagent storage portion, the push rod is connected to the sealing member, and the push rod cooperates with an external device to separate the sealing member from the reagent storage portion; and the reaction portion comprises at least one reaction zone, and the reaction zone receives the reagent releases from the reagent storage portion. Application of the reagent reaction kit to biological sample detection comprises the reagent reaction kit. The reagent reaction kit of the invention as a single whole, only needs cooperation with a detection kit, and can achieve quick release of reagent in the reagent storage portion by one-step operation.

The invention discloses a screening and drying device for granulate drug processing. The device comprises a bottom board; a tank is fixed to the outer wall of the top of the bottom board through a bolt; a partition plate is welded to the inner wall of one side of the tank; the outer wall of the top of the tank is fixedly provided with electric heating wires through bolts, and the electric heatingwires are distributed at equal distances; ventilation holes distributed at equal distances are formed in the position, close to the electric heating wires, of the outer wall of one side of the tank; air filter nets are arranged on the inner walls of the ventilation holes; a collection box is arranged on the outer wall of the top of the partition plate; storage boards distributed at equal distancesare welded to the inner walls of the two opposite sides of the tank; evenly-distributed convection holes are formed in the outer wall of the top of each storage board; and the same filter net is welded to the position, close to the top end, of the inner wall of the two opposite sides of the tank. The water content of drugs can be reduced, the drug strength and uniformity of the drugs are improved, raw materials and parts inside the device can be sterilized, cleanliness of the device is improved, and the quality-keeping extended period of the drugs is prolonged.

The invention discloses a preparation method of yellow rice wine donkey hide gelatin and relates to the technical field of weight loss. The preparation method comprises the following steps: adopting natural ingredients as a key technology, putting 250g of donkey-hide gelatin and 500g of yellow rice wine into a china bowl and infiltrating for 24 hours so as to soften the donkey-hide gelatin; putting the mixture into a steamer and steaming for 3 hours with low fire and no cover; in a state that the donkey-hide gelatin is dissolved into liquid, slightly stirring and then steaming with low fire and no cover for 1 hour so as to roll bubbles in the china bowl and make the donkey-hide-gelatin thoroughly dissolved, thereby obtaining a finished product of the yellow rice wine donkey hide gelatin; taking out the china bowl filled with the finished product of the yellow rice wine donkey hide gelatin from the steamer; after natural cooling, sealing with a food film and putting into a refrigeratorfor cold storage. A use method of the yellow rice wine donkey hide gelatin is that 10g of the finished product of the yellow rice wine donkey hide gelatin is brewed with warm boiling water for administrating, three times a day for health care. The method has the advantages of simplicity and feasibility, stable and reliable effects of the product, safety natural food materials, scientific homologyof medicine and food, low cost and facilitation of promotion.

The invention belongs to the technical field of marine organisms, and particularly relates to an asparagus live keeping transportation method. The method comprises the steps of harvest of health asparagus seedlings, compaction and piling after harvest, and transfer to a refrigeration truck for refrigerated transportation after precooling treatment, wherein the temperature control of the refrigeration truck is adjusted to -8 DEG C to -5 DEG C. The method is simple and practicable, achieves a long live keeping period, and is applicable to long-distance transportation of asparagus. The temperature control of the refrigeration truck is to be adjusted to -8 DEG C to -5 DEG C in a transportation process, nitrogen or carbon dioxide is filled, and a respiratory action of the asparagus is reduced to the greatest extent. The purpose of long-time live keeping transportation is achieved finally by implementing the technical points.

The invention discloses a biomarker for early stage discovery and early warning of liver injury. The biomarker is prepared from phenylalanine, tyrosine, glutamic acid, ornithine and cysteine. A methodof the biomarker used for early stage discovery and early warning of liver injury comprises the following steps of detecting the concentration of the biomarker in the human body serum; if the concentration of phenylalanine in the human body is higher than the normal level by 41 percent or more, the concentration of tyrosine is higher than the normal level by 19 percent or more, the concentrationof glutamic acid is higher than the normal level by 65 percent or more, the concentration of ornithine is higher than the normal level by 30 percent or more, and the concentration of cysteine is higher than the normal level by 43 percent or more, the result shows that the human body has the drug-induced liver injury. The invention also provides application of the biomarker in the preparation of aliver injury diagnosis kit. The amino acid biomarker provided by the invention has the high diagnosis value. Meanwhile, the diagnosis method and the diagnosis agent provided by the invention greatly improve the liver injury diagnosis efficiency and accuracy.