42results about How to "No heavy metal residue" patented technology

The invention discloses a chemical structure modification-based water-soluble curcumin dye. The invention also discloses a preparation method of the chemical structure modification-based water-soluble curcumin dye. The preparation method comprises the following steps: reacting curcumin with 1,2-dibromoethane, and reacting the above obtained product with triethylamine to obtain the chemical structure modification-based water-soluble curcumin dye. The invention also discloses an application method of the chemical structure modification-based water-soluble curcumin dye. The dye can be directly used for dyeing unmodified cotton fabrics without a dyeing accelerant, a dye leveler or a dye mordant, so the environmental protection property of a dyeing process and the safety of the fabric are improved. All dyeing indexes, especially the indexes comprising the washing color fastness and the like of the water-soluble dye are obviously better than that of natural curcumin for direct dyeing, wherein the washing color fastness reaches 3 level, the staining fastness reaches 5 level, and each of the dry crock fastness and the wet crock fastness reaches 5 level.

The invention belongs to the technical field of organic synthesis and discloses a 1,6-eneyne compound and alcohol compound based free radical cyclization reaction method. The method includes steps: taking an alcohol compound as a starting raw material, subjecting to cyclization reaction with a 1,6-eneyne compound under the action of an oxidant, and after complete reaction, performing aftertreatment to obtain a cyclization product namely a 2-pyrrolidone compound. The method has advantages that raw materials are cheap, easy to acquire, extensive in source, stable and low in toxicity, consumptionof any transition metal catalysts and ligands is avoided, the reaction can be carried out in an air atmosphere and is mild in condition and easy in operation, the product is free of heavy metal residues, and the method has advantages of extensive reaction substrate applicable range, simple, efficient, economical and green and is suitable for industrial production. In addition, an economical, practical, green and environmental-friendly novel idea is provided for alcohol free radical cyclization, and an application range is expanded.

The present invention discloses a pig feed premixed material and its preparation method. It is made up by using blue copperas, copper sulfate monohydrate, zinc sulfate monohydrate, calcium iodate, organic selenium, choline chloride, enzyme preparation, calcium hydrogen phosphate, stone powder, edible salt, astragalus root, lonicera flower, licorice root and zeolite powder according to a certain mixing ratio through a certain preparation process. Said invention can raise immunity of pig and can raise quality of pig meat.

The invention provides an antibacterial and growth-prompting traditional Chinese medicine composition. The antibacterial and growth-prompting traditional Chinese medicine composition is characterizedby being prepared from the following raw materials in parts by weight: 2 to 10 parts of bacillus subtilis, 5 to 35 parts of Chinese pulsatilla root extract, 5 to 40 parts of radix scutellariae extract, 5 to 35 parts of rhizoma coptidis extract, 30 to 70 parts of folium eucommiae extract, 20 to 50 parts of fructus crataegi extract, 5 to 35 parts of pericarpium citri reticulatae extract, 5 to 35 parts of cortex fraxini extract and 5 to 30 parts of liquorice root extract. The traditional Chinese medicine composition provided by the invention is made into pharmaceutically acceptable preparations:tablets, pills, powder, capsules, granules and liquid. The invention further provides a preparation method and a detection method of the antibacterial and growth-prompting traditional Chinese medicinecomposition. By adopting the antibacterial and growth-prompting traditional Chinese medicine composition, the antibiotics or chemically-synthesized drugs in feed can be reduced or partially substituted, and drug residues of animal products are reduced or avoided; the problem of diarrhea of piglets, weaning piglets, fattening pigs and poultry can be effectively solved, so that the diarrhea rate and death rate of the pigs and poultry are remarkably reduced; the antibacterial and growth-prompting traditional Chinese medicine composition is mainly used for the pigs and the poultry, is used as a mixed feed additive and can be directly added into the feed or a mixing medium for a livestock farm.

The invention discloses a medicated food nutrient conditioner for improving health of a sow and piglets in a suckling period and a preparation method and application of the medicated food nutrient conditioner. The medicated food nutrient conditioner comprises the following components: angelica sinensis, ligusticum wallichii, cowherb seed, leonurus, dandelion, dried tangerine or orange peel, hawthorn, scutellaria baicalensis, astragalus polysaccharide, valine, glutamine, nucleotide, complex phosphoesterasum and an auxiliary material. The medicated food nutrient conditioner prepared from the components is fed to the lactating sow after being mixed with a lactating sow complete formula feed. The medicated food nutrient conditioner for improving health of the sow and piglets in the suckling period, disclosed by the invention, is fragrant in smell, sweet and attractant, free from antibiotics, drugs and heavy metal residues, and capable of promoting the health of the intestinal tracts of the sow, improving the digestion-absorption function and increasing the feed conversion ratio; and the food consumption of the sow is increased by above 5 percent. The medicated food nutrient conditioner has the effects of clearing away heat and toxic materials, enriching the blood and tonifying qi, and capable of controlling postpartum infection and improving the immunity of the sow and the health degree of the piglets; the survival rate of the piglets is increased by above 5 percent; and lactation is promoted, and the weaning weight of each piglet is increased by 0.5-1 kg.

The invention discloses a nano-scale collagen purification method capable of reaching the absorption rate of 96%. The method includes the steps: crushing fish skins, and removing impurities; placing crushed materials into a low-temperature stirrer, stirring and mixing mixture for 30 minutes according to the volume ratio of the crushed materials to deionized water, standing for 10 minutes, removingupper floats, and placing mixture into a filter device to perform adsorption filtration; collecting filtered crushed materials, and performing first purification, second decomposition and third purification. The volume ratio of the crushed materials to deionized water is 1:3. Nano-scale collagen acquired through three purification steps and a particle collisions instrument is detected by SGS andPUNY, so that the nano-scale collagen is free from oestrone, chloramphenicol, progesterone, salmonella, methyltestosterone, macrodantin metabolite, fat, estradiol and estriol. According to the method,slurry acquired after treatment of the fish skins is used for extraction of the collagen, the purification rate and the purity of the collagen can be obviously increased, the slurry is purified by anano-scale collagen purification device to obtain nano-scale mixed powder, collision of the nano-scale mixed powder is implemented by the particle collisions instrument to obtain the nano-scale collagen with uniform molecular weight, and the absorption rate of the nano-scale collagen can reach 96%.

The invention relates to the technical field of feed, in particular to earthworm breeding feed. The earthworm breeding feed is prepared from garden soil, organic garbage, red yeast and white sugar as raw materials in weight ratios of 100-110: 30-40: 0.02-0.05:1-2; during preparation, the garden soil, the organic garbage, the red yeast and the white sugar are added into a stirring crusher to be stirred and crushed; the crushing fineness is less than or equal to 0.1mm to obtain crushed materials, and water is added into the crushed materials to enable the humidity of the crushed materials to be 55%-58%; the crushed materials are stacked and then are sealed, and the crushed materials are fermented at 35-40 DEG C for 40-45 hours; and high-temperature sterilization is carried out at the temperature of 110-120 DEG C. The raw materials of the earthworm breeding feed disclosed by the invention are cheap and easily available, and the garden soil and the organic waste can be obtained nearby, so that the cost of the feed can be effectively reduced; the preparation method is simple, and the obtained breeding feed is fresh and odourless, and good in air permeability; normal growth of earthworms is facilitated; and weight increase of the earthworms is fast.

The invention discloses a citrus planting method. The method includes the steps of firstly, performing soil management; secondly, planting, thirdly, performing water and fertilizer management; fourthly, performing shaping pruning; fifthly, performing yield control; sixthly, performing disease and pest control which comprises agricultural control, physical mechanical control and biological control,wherein during the agricultural control, the roots of citrus seedlings are soaked with 0.2-8% potassium permanganate solution for 10-30 minutes and washed with clean water when the roots of the citrus seedlings planted in the second step are sterilized, the orchard is cleaned to reduce disease and pest sources, and a chemical composition prepared from Jatropha curcas seed oil and quick lime wateraccording to the volume ratio of (1-5):100 is used to spray the citrus in the spring shoot germination period, the fruitlet period and the fruit expansion and color changing period to control cankerand anthracnose; during the physical mechanical control, light and a colored plate are used to trap and kill pests; during the biological control, a sex attractant and/or natural enemies are used to kill the pests. The method has the advantages that green disease and pest control can be achieved, fruit quality can be guaranteed, and the method is safe and free of pollution.

The invention relates to a method for sterilizing and disinfecting Dendrobium officinale capsules, belonging to the field of biotechnology. The method comprises the steps of firstly, selecting healthy and fully grown Dendrobium officinale capsules, removing tori and residual petals; secondly, cleaning the selected Dendrobium officinale capsules with scrubbing solution, airing until the surfaces of the capsules have no moisture, soaking with alcohol with weight percentage of 75%, wiping and setting aside; thirdly, placing the treated capsules into a closed vessel 4 hours before sowing, and igniting dichlord isocyanurice acid aerosol with mass concentration of 2% at 8-12g/m³ and placing into the closed vessel for sterilization. The method has the beneficial effects of having good sterilizing and disinfecting effect and no harm to health of human body and promoting Dendrobium officinale seed germination in advance.

The invention relates to a traditional Chinese medicine composition for promoting energy metabolism of scalp hair follicles as well as a preparation method and application thereof. The traditional Chinese medicine composition comprises the following preparative raw material components in parts by weight: 7-20 parts of schisandra chinensis, 1-8 parts of radix ophiopogonis and 3-10 parts of ginseng.The preparation method comprises the following steps: preparing a ginseng extract, a radix ophiopogonis extract and a schisandra chinensis extract according to a supercritical CO2 extraction technology, and mixing the three extracts, thereby obtaining the product. The traditional Chinese medicine composition is reasonable in component formula, can obviously achieve synergistic interaction, can achieve the effects of obviously promoting energy metabolism of scalp hair follicles, activating hair follicle scalp cells and promoting hair growth, and is very simple in preparation process, environmentally friendly and safe.