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72results about How to "No toxic residue" patented technology

Rhodococcus ruber for generating natural haematochrome and preparation method and application thereof

The invention relates to rhodococcus ruber for generating natural haematochrome and a preparation method and application thereof, wherein the haematochrome is generated through microbial fermentation; the strain category belongs to rhodococcus ruber; the preservation numbr is CGMCC No.12604. The invention also relates to a preparation method of the fermentation natural haematochrome. The fermentation strain of rhodococcus ruber CGMCC No.12604 is used for inoculating the cultured seeds into a fermentation culture medium according to the inoculation quantity according to the inoculation quantity of 1 percent to 10 percent (v / v), wherein the culture temperature is 30 to 40 DEG C; the fermentation ventilation quantity is 5 to 13m<3> / h; the tank pressure is 0.02 to 0.09 MPa; the stirring speed is 120 to 150 r / min; the fermentation time is 120 to 144h; in the fermentation process, sterile air is firstly introduced; the pH of the fermentation liquid is maintained at 6.5 to 7.5 by ammonium hydroxide or alkali liquor; according to the fermentation result, the yield of the haematochrome is 1 to 2g / L. The invention also discloses an extraction method of the rhodococcus ruber haematochrome.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method for preparing high-purity heme on large scale and application of heme

The invention relates to a method for preparing high-purity heme on a large scale and an application of the heme. The invention provides the method for preparing the high-purity heme on a large scale for the first time. The method comprises the steps of solid-liquid separation, adsorption, centrifugation, repeated enzymolysis and the like, and has the advantages that the purity of heme is improved. Particularly, under the condition of a certain pH value (the pH value equals 1 to 4), adsorption reaction between the separated heme and CMC-NA (sodium carboxymethyl cellulose) or carboxymethyl starch is performed efficiently; through repeated special enzymolysis and washing, the prepared heme has high iron content, good palatability, and high adsorption and utilization rate, is environment-friendly and pollution-free during production, has no toxicity or adverse effects, and is very suitable for feeds and food for supplementing iron.
Owner:SHANGHAI GENON BIOLOGICAL PROD

Mould-proof antioxidant capable of increasing pig feed quality

ActiveCN102599614AMildew-proof period is longAntioxidant effect is goodFood preservationChitinAnti oxidative
The invention provides a mould-proof antioxidant capable of increasing pig feed quality. A natural product, namely, soluble chitin, extracted from shrimp and crab shells is taken as a main component of a mould-proof agent and is combined with a composite antioxidant to exert functions, and the mould-proof antioxidant has the characteristics of long mould-proof period, good anti-oxidation effect, no toxic residue, safety and reliability, and can be used for replenishing nutritional ingredients required by the growth of live pigs and increasing the pig feed quality. After eating the feed in which the mould-proof antioxidant is added, the live pigs are increased in feed intake and obviously accelerated in body weight increase, and the slaughtering time is shortened.
Owner:玉林双胞胎饲料有限公司

Efficient environment-friendly water flush fertilizer

The invention discloses an efficient environment-friendly water flush fertilizer which is characterized in that the water flush fertilizer comprises components in percentage by weight as follows: 3%-5% of plant protein powder, 3%-5% of compound bacteria, 3%-5% of compound enzyme, 10%-20% of alkaline process and ammonium sulfite process mixed concentrated black liquor, 15%-25% of soluble phosphate fertilizer, 10%-20% of soluble potash fertilizer, 20%-30% of urea, 10%-20% of sodium humate, 8%-10% of an amino acid solution, 6%-9% of a compound nutrition conditioning agent, 3%-5% of borax, 5%-10% of microelement fertilizer, 5%-10% of medical stone powder and 0.2%-0.3% of a synergist. The synergist increases the absorption capability of water and fertilizer, crop growth is promoted, and the drought resisting capability of crops is improved; after compound sodium nitrophenolate and plant are contacted, the nutrition element absorption capability and the disease-resistant effect of plants can be improved; two types of straw pulp black liquor are comprehensively treated, acid is not added, and the cost is reduced; the efficient environment-friendly water flush fertilizer has comprehensive nutrition elements, has high fertilizer efficiency and facilitates yield increase of the crops, and nutrients are easy to assimilate.
Owner:SHANDONG ENBAO BIOTECH

Anti-allergic compound polysaccharide composition, preparation method and application thereof

The invention relates to an anti-allergic compound polysaccharide composition which is prepared from following components, by weight: 10-90 parts of astragalus membranaceus, 10-90 parts of cortex albiziae and 1-50 parts of radix glycyrrhizae. A preparation method of the anti-allergic compound polysaccharide composition includes the following steps: (1) crushing the raw materials into powder; (2) material feeding: adding water or a water-alcohol mixture by 5-50 times by weight of the powder into the powder; (3) extraction: performing extraction under -0.1-70 MPa at 0-25 DEG C, and performing centrifugal separation and collecting a centrifugate; (4) separation and concentration: removing impurities from the centrifugate through a micro-filtering membrane, and performing classification purification to the polysaccharide through an ultra-filtering membrane being 100-20000 Da in flux. The compound polysaccharide composition has the following beneficial effects: (1) the composition has definite anti-allergic functional components and is easy to control in quality; (2) the composition has a synergistic effect on a sensitizing target point with multiple links, is free of toxic and side effects and is high in safety; (3) the composition is free of contact with organic solvents, is free of residue of toxicity; and the preparation method is simple in process and is easy to carry out, and is suitable for being popularized industrially.
Owner:广州市络捷生物科技有限公司

Expanded compound feed capable of improving intestinal health of bighead carps and preparation method of expanded compound feed

The invention discloses expanded compound feed capable of improving the intestinal health of bighead carps and a preparation method of the expanded compound feed, aims at providing an expanded compound feed which can improve the intestinal health of the bighead carps and the intestinal non-specific immunity of the bighead carps, maintain stability of intestinal flora and promote healthy growth of the bighead carps, and belongs to the field of aquaculture feed. According to the technical scheme, the expanded compound feed capable of improving the intestinal health of the bighead carps is prepared through the steps that a Chinese herbal medicine compound and basic ingredients are mixed, extruded, expanded and granulated, wherein the weight ratio of the basic ingredients to the Chinese herbal medicine compound is (998.0-999.7):(0.3-2), and the Chinese herbal medicine compound is prepared from, by weight, 0.1-0.5 part of fresh ginger, 0.5-1.5 parts of garlic, 0.1-0.5 part of rhizoma smilacis glabrae, 0.3-1.5 parts of folium perillae, 0.1-0.5 part of goldthread roots and 0.2-1.2 parts of plantain herb.
Owner:TONGWEI +2

Nuisance free mushroom stick water-loss reducer and preparation method

The invention relates to a nuisance free dried mushroom log water retention agent used for water retention of mushroom logs in planting dried mushrooms, and a preparation method thereof. Stearic acid, glycerin monostearate and glycerol abstracted from vegetable oil are mixed according to 0.85:0.1:0.05; the mixed raw materials are added to an reaction vessel; after the mixture is heated and stirred as well as reacts for 1 hour, the mixture is filtered and cooled; the mixture is porphyrized and packaged after the mixture is frozen. The nuisance free dried mushroom log water retention agent has the advantages of excellent moisture retention property, ensuring the safety of foodstuff and the health of bodies, and no remaining toxicity.
Owner:杭州民生制胶有限公司

3D printing collagen biological sponge scaffold and preparation method thereof

The invention discloses a 3D printing collagen biological sponge scaffold and a preparation method thereof. The method comprises the steps that firstly, an acid solution containing chitosan and an acid solution containing collagen are mixed to be uniform to prepare 3D printing bio-ink, then the bio-ink is added into a printing gun head, and printing forming is conducted in a low-temperature environment according to design parameters and a model; and freeze-drying treatment is conducted on the freeze-formed product, the freeze-dried product is soaked in a solution containing procyanidine for cross-linking immobilization, and finally freeze-drying is performed after washing to obtain the recombinant human collagen biological sponge scaffold. By means of a low-temperature deposition 3D printing technology, all-environment temperature control can be achieved, and the forming stability is improved. The biological sponge scaffold has proper pores, forming controllability, good physical and chemical properties and biocompatibility, does not contain other impurities, and is low in manufacturing cost.
Owner:NANJING UNIV OF SCI & TECH

Poly(2-cyanoacrylic acid) as well as preparation method and application thereof

The invention relates to poly(2-cyanoacrylic acid) as well as a preparation method and application thereof, and belongs to the fields of medicine and chemical industry. The method comprises the following steps: firstly, preparing an alpha-cyanoacrylate polymer, and selectively hydrolyzing ester bonds of the polymer under alkaline conditions to obtain the poly(2-cyanoacrylic acid). The poly(2-cyanoacrylic acid) is dispersed into water to form negatively charged microspheres, so that novel blank embolism microspheres are obtained, the particle sizes of the blank embolism microspheres can be adjusted in a micrometer range, and the blank embolism microspheres have a deformation function to pass through blood vessels with specific morphology, and can tightly embolize the blood vessels to avoidectopic embolism due to shedding; and the blank embolism microspheres and a positively-charged drug are combined to obtain novel drug-loaded embolism microspheres, the novel drug-loaded embolism microspheres use a polymer carboxyl group to actively load the positively-charged drug by adopting the principle of charge reversal, and can directly release the drug in localized pathological tissue, thedrug rarely flows through a whole body, so that the local effect of the drug on the pathological tissue is improved, and the toxic and side effects of the drug on the whole body are reduced.
Owner:DALIAN HEYUAN MEDICAL DEVICES

Alcohol-based fuel combustion improver and alcohol-based fuel

ActiveCN111909735AIncrease calorific value and flash pointHigh flash pointLiquid carbonaceous fuelsFuel additivesMethanol formationEnvironmental geology
The invention discloses an alcohol-based fuel combustion improver, which comprises the following components in parts by weight: 80-90 parts of a cosolvent, 20-30 parts of solvent oil, 1.5-5 parts of asmoke abatement combustion improver and 3.5-10 parts of a cosolvent; wherein the cosolvent is at least one of butanol, octanol, hydrogenated anthracene oil and light oil, and the solvent oil is at least one of pine nut oil, turpentine oil, turpentine and glycerol. The combustion improver can form an ideal mixed solution with methanol, so that the flash point and heat value of the whole fuel are improved, and the final combustion efficiency of the alcohol-based fuel is promoted to be remarkably improved. The alcohol-based fuel combustion improver is wide in raw material source, clean, environmentally friendly and capable of achieving industrial mass production. The invention further discloses an alcohol-based fuel prepared by mixing 20-40 parts of the alcohol-based fuel combustion improverand 60-80 parts of methanol, wherein the content of methanol is reduced, and all components in the alcohol-based fuel form an ideal mixed solution; in addition, the added combustion improver component enables the overall heat value and flash point to be improved, the fuel combustion efficiency is high, and safety pollution is little.
Owner:广东一诚环保科技有限公司
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