37results about How to "Solve the problem of excess residue" patented technology

The invention relates to a mango preserving technology. In order to achieve integrative pre-plucking and post-plucking preserving effect, the invention comprises four composite preserving pretreatment measures of disinfectant and calcium fertilizer spraying before mango plucking and heat treatment, rot-proof film-coating preservative treatment and ethylene inhibitor treatment after the plucking. The rot-proof film-coating preservative comprises 0.25 percent to 2 percent of glucomannan or/and 0.25 to 2 percent of CTS with 95 percent degree of deacetylation, 0.1 to 1 percent of sucrose fatty acid ester or/and 0.1 to 1 percent of glycerel monostearte, 0.1 to 0.5 percent sorbitol or glycerol, 0.5 to 1.5 percent of calcium chloride or calcium citrate, 0.05 to 0.1 percent of potassium sorbate, 0.01 to 0.1 percent of one or more of the following ingredients: iprodione, Sportak and mancozeb, 0.005 to 0.01 percent of gibberellin and 0.025 to 0.05 percent of vitamin K. The invention can decrease the respiratory intensity, postpone the respiratory climacterics, delay the postripeness time and prolong the freshness period of mangos. Compared with the prior art, the freshness period of the mangos can be prolonged by 10 to 20 days.

The invention provides a packaging polyolefin processing agent composition which is a mixture of nano silicon dioxide and ethylene-vinyl acetate copolymer, wherein the mass of the nano silicon dioxide accounts for 10-40% of the total mass of the processing agent composition, and the mass of the ethylene-vinyl acetate copolymer accounts for 60-90% of the total mass of the processing agent composition. The invention also provides packaging polyolefin modified by the processing agent composition. The modification of the nano silicon dioxide has greater influences on the mechanical property, the crystallization property, the polarity, the printing property, the composite property, the residue of organic solvent, and other indexes of the polypropylene. A result shows that after the polypropylene soft packaging material is subjected to nano modification, the toughness of the polypropylene soft packaging material is greatly enhanced; meanwhile, the polarity, the printing ink adhesive force and the peel strength of the material are improved; the adsorption of the modified polypropylene on toluene is greatly reduced. After nano modification, the using performance of the polypropylene used as the soft packaging material can be greatly improved.

The invention discloses stenotrophomonas maltophilia XQ08 efficiently degrading deltamethrin and application thereof. The strain stenotrophomonas maltophilia XQ08 is preserved in China Center for Type Culture Collection (CCTCC) on December 8th, 2015 at the address of Wuhan University in Wuhan, China and with the preservation number of CCTCC M 2015726. The Bacillus cereus stenotrophomonas maltophilia XQ08 provided by the invention has the advantage that the degradation rate on deltamethrin (50.0mg/L) in an inorganic salt culture medium after 5 days reaches 67.04%, so that the strain can efficiently degrade deltamethrin and can effectively restore deltamethrin-polluted soil and water, the excessive pesticide residue problem in production of agricultural products and environmental pollution problem are solved and ecological environment and human health are protected.

The invention discloses a method for recovering iron in low-iron Bayer process red mud. The method comprises the steps that de-alkalization treatment is conducted on the Bayer process red mud by adopting calcium oxide to mix the de-alkalization red mud with activated carbon; the mixture is mixed with a binding agent to be pressed into tablets; the tablets are placed into a graphite crucible, high-temperature treatment is conducted under the condition that argon is introduced all the time in a vacuum electromagnetic sensing furnace, the tablets are cooled down along with the furnace, grinding is conducted, and iron slags are separated through magnetic sorting. The method has the advantages that the recovery rate and grade of iron are higher than 80%, the processed Bayer red mud can be usedfor producing building materials, recovered iron is conformed to demands of industrial steel melting, the problem of excessively high red mud accumulation amount is effectively solved, and an excellent guiding meaning is achieved on the recovery of iron in the low-iron Bayer process red mud.

The invention provides a novel method for synthesizing indole-3-carbinol. The new method comprises the following steps: 1, accurately preparing 0.2mol of indole-3-formaldehyde, 200ml of ethanol with concentration being 99% and 0.2mol of potassium borohydride and reacting at a room temperature for 3h; 2, reducing pressure to minus 0.8mpa and concentrating; and adding 500ml of water and separating out a solid product which is the crude product of indole-3-carbinol. According to the new method, since medicinal alcohol is used as a solvent, the problem benzene residues exceed the standard is solved and the cost is reduced.

The invention provides a processing auxiliary agent composition of polyolefin for food packing. The processing auxiliary agent composition is a mixture of nano silicon dioxide and ethylene-vinyl acetate copolymer, wherein the mass of the nano silicon dioxide accounts for 1 to 20 percent of the total mass of the processing auxiliary agent composition, and the mass of the ethylene-vinyl acetate copolymer accounts for 80 to 99 percent of the total mass of the processing auxiliary agent composition. The invention also provides a polyethylene flexible packing material modified by using the processing auxiliary agent composition. The results show that the toughness of the polyethylene flexible packing material modified by using the processing auxiliary agent composition is greatly improved, and the polarity of the material is well improved at the same time; and the adsorption of the modified polyethylene on methylbenzene and ethyl acetate is greatly reduced, and the friction coefficient of a film is also greatly reduced. Therefore, the service performance of the nano modified polyethylene serving as the flexible packing material is greatly improved.

A bacterium, Sphingomonas agrestis which shows negative to Gram reaction, and its preparation for degradating the residual carbofuran are disclosed. Said sphingomonas agrestis features that the carbofuran is the only carbon source and nitrogen source needed by its growth and can be mineralized into CO2, water and simple inorganic compound. Its preparation is prepared through slant culture, shake flask culture and culturing in seeding tank.

The invention discloses a bacillus cereus LGY06 for efficiently degrading napropamide and a use method and application of the bacillus cereus LGY06. A strain is preserved in China Center for Type Culture Collection (CCTCC) in June 19, 2015, and the preservation number is CCTCC NO:M 2015398. The rate for degrading napropamide with density of 50.0 mg/L reaches 76.81% when the bacillus cereus LGY06 is placed in a salt medium for 7 days, it shows that the strain can efficiently degrade napropamide and effectively restore soil and water body polluted by napropamide, the problems that the content of pesticide residues exceeds the standard and the environment is polluted during production of agricultural products are solved, and the ecological environment and human health are protected.

The invention discloses a method for controlling fructus-lycii-fruit-boring pests and a crown-surface-and-earth-surface bi-directional capturing device. A physical device is arranged to prevent the fructus-lycii-fruit-boring pests, and according to the characteristic that the fructus-lycii-fruit-boring pests conduct buried pupating, overwintering, soil-leaving emerging, growing and breeding through the crown surface of a fructus-lycii tree and the earth surface, a physical intercepting device is erected between the crown surface of the fructus-lycii tree and the earth surface, the intercepted fructus-lycii-fruit-boring pests are captured and killed, and the fructus-lycii-fruit-boring pests are fundamentally eliminated. The method has the advantages that the controlling process is environmentally friendly and free of pollution, the food quality and safety of fructus-lycii fruits are not influenced, and the problem that pesticide residues of fructus-lycii fruits are out of limits is solved; the controlling effect is good, it is effective for a long time after one-time arrangement, the fructus-lycii-fruit-boring pests can be fundamentally killed, damage of the fructus-lycii-fruit-boring pests can be stably controlled, and damage of the fructus-lycii-fruit-boring pests is smaller and smaller; the capturing device is simple in structure, convenient to install and capable of being reused for a long time and reducing the controlling cost of the fructus-lycii-fruit-boring pests.

The present invention discloses a strain of Providencia stutzeri JD and its application. The strain has been preserved in the China Center for Type Culture Collection (CCTCC) on December 22, 2017. The address is Wuhan, China, Wuhan University, and the preservation number is for CCTCC M 2017738. The Providencia stuartii JD provided by the present invention can degrade 59.67% of the sclerotia with an initial concentration of 50 mg/L within 5 days in an inorganic salt medium, and 70.75% of the sclerotia can be degraded within 7 days. This shows that the strain can efficiently degrade Sclerotin, can effectively repair the soil and water polluted by Sclerotin, solve the problem of excessive pesticide residues and environmental pollution in the production of agricultural products, and protect the ecological environment and human health.