34results about How to "Degradation has" patented technology

The invention discloses a method for preparing edible salt added with bamboo ingredients. The method comprises the following steps: drying commercial salt, adding a certain amount of a bamboo flavones extract prepared by processing bamboo powder, a bamboo beverage, bamboo juice and a water extracting solution or a concentrated solution of bamboo leaves into the salt, uniformly mixing, adding a certain amount of a flavor enhancer, namely 5'-disodium guanylate as well as dextrin and seasonings, finally adding a proper amount of an anti-caking agent into mixed salt, and performing subsequent operations of adding iodine, weighing, packaging and the like according to the needs. The method is simple in process and low in cost, and meets laws and regulations on food safety and related provisions in an ISO9000 quality management system; the produced bamboo-containing edible salt can be used for reducing intake of people on sodium chloride while ensuring a seasoning function; the added bamboos contain various chemical ingredients beneficial to a human body.

The invention discloses formaldehyde degradation spray for Chinese herbal components, and belongs to the technical field of air purifying. The formaldehyde degradation spray for the Chinese herbal components comprises wormwood, radix aristolochiae, dogwood, longan, cassia seed, madder, pseudo-ginseng, lithospermum, aloe, seed of Chinese dodder, honeysuckle, eupatorium, dried tangerine or orange peel and fructus forsythia. The formaldehyde degradation spray for the Chinese herbal components not only can effectively degreade formaldehyde in air, but also can enable air to be fresh and fragrant, so that the environment is improved, the fatigue is relieved, physical and mental pleasure further can be realized, the working and learning efficiency is improved, and the use is convenient.

The invention discloses a pH-sensitive biodegradable polyurethane-urea material and a preparation method thereof. The polyurethane-urea is pH-sensitive biodegradable polyurethane-urea prepared by mixing dihydroxy-terminal polyether ester with N,N-bis(2-ethoxy) 4-pyridinccarbox amide, carrying out chain expansion by using carbamido-containing diisocyanate and purifying; the polyether ester is usedas a main soft segment, a chain segment containing carbamido and urethane group is used as a hard segment and a pyridine ring is positioned on a side chain. The polyurethane-urea has the characteristics of biodegradability, absorbability of a degradation product, pH sensitivity, high expanding and degrading rate in acidic mediums, as well as basically no expansion and low degrading rate in neutraland alkaline mediums; in addition, the pH sensitivity is not basically affected by temperature and can be applied to the field of controlled release as a drug carrier, and further the drug release rate is controlled according to pH values of different parts of an organism. The hard segment formed by carbamido-containing structure diisocyanate contains dense hydrogen bonds, so that the mechanicalproperty of the material is improved.

The invention belongs to the field of functional fiber materials, and discloses a traditional Chinese medicine composite anti-virus multifunctional degradable polylactic acid fiber and a preparation method thereof. The starch fermentation raw material is fermented and extracted to obtain lactic acid, and then dehydrated and condensed to obtain a lactic acid prepolymer, and then added to an extruder with functional nanoparticles and a catalyst to melt, mix and polycondense to obtain functional polylactic acid, which is then spun and formed to obtain a product. The functional nanoparticles are obtained by absorbing the antiviral components of traditional Chinese medicine by adopting porous silicon dioxide and inorganic nanometer powder materials surface-modified by a silane coupling agent. The invention effectively couples the functional modification of the polylactic acid fiber with the upstream fiber polymerization, significantly simplifies the process steps and reduces production energy consumption, and has better mixing and dispersing effect and stability. At the same time, the inorganic antibacterial health function and the antiviral function of traditional Chinese medicine are integrated into the same particle, which can simultaneously exert antibacterial, antiviral and health care functions. The obtained functional fiber has the advantages of environmental protection, degradability and recycling.

The invention discloses a method for preparing a greening fertilizer from kitchen garbage, wherein the method includes the steps of pre-treatment, desalting and deoiling, aerobic fermentation and post-treatment and particularly includes the steps: carrying out sorting and impurity removal of the kitchen garbage, desalting and deoiling, then adding a microbial agent, carrying out aerobic fermentation, and carrying out mixed granulation with functional bacteria to obtain the greening fertilizer. The method has the beneficial effects that the amount of waste is reduced, and the fertilizer is alsorich in substances such as organic matters, amino acids, organic-state nitrogen, phosphorus and potassium, medium and trace elements and the like essential for plant growth; moreover, the fertilizerhas the effects of carbon fixation and water retention, and can also increase the retention of soil nutrients, reduce the soil bulk density and increase the porosity. Therefore, the greening fertilizer is a high-efficiency and environmental-protection greening fertilizer.

The invention discloses a strain of alcaligenes providencia and its application in degrading tetracycline and producing plant auxin. The name of the Alcaligenes Providencia is Providencia alcalifaciens TC1, and the preservation number is GDMCC NO: 60787. The strain was preserved on September 25, 2019 at the Guangdong Provincial Microorganism on the 5th Floor, Building 59, Compound, No. 100 Xianlie Middle Road, Guangzhou City Culture Collection Center. Alcaligenes Providencia TC1 in the present invention can degrade tetracycline by co-metabolism and can secrete auxin or analogs, so it can be used for the degradation of low concentration tetracycline in soil and water to remove or reduce Residues of tetracycline in the environment; can also be used to produce auxin, which is used to promote plant growth.

The invention provides a cooking fume degradation conversion device for treating cooking fume, the device comprises a fume extractor, a through-type fume degrader is arranged on the fume flow channel formed by the fume extractor, and the through-type fume degrader The outlet of the storage tank is connected with a storage tank, and a combustible gas outlet is provided on the upper part of the storage tank. Compared with the prior art, the present invention has the following advantages: the present invention uses a fume extractor to collect cooking fume and sets a through-type fume degrader on the fume flow channel. It is because of this structure that the cooking fume and the fume degrader Contact with each other, degrade and convert into combustible gas, and the combustion product of the combustible gas is water, etc. Therefore, the present invention has the ability to degrade cooking fume, and realizes the pollution-free treatment of cooking fume.

The invention discloses a coated degradation type slow release potassium fertilizer which is formed by coating a granular potassium fertilizer with a coating material, wherein the coating material occupies 2-6 percent of mass of the potassium fertilizer and is 60-140 mum in thickness; the coating material is prepared by the following method which comprises the following steps: (1) modifying soybean oil and obtaining soybean oil oligomer; (2) modifying starch and obtaining liquid starch; (3) mixing the soybean oil oligomer and the liquid starch, obtaining a mixture, then mixing with polyester resin and reacting into a film so as to obtain the coating material; the slow release period of the coating material is 30-130 days, and the coating material can be completely degraded within two years and has no residue and no pollution to the environment. The coated degradation type slow release potassium fertilizer disclosed by the invention has the advantages of degradability, low cost, long slow release period, nontoxicity, innocuity and the like.

The invention discloses a composite water-based adhesive formed of polypeptide and glycyrrhizic acid, which comprises glycyrrhizic acid, polypeptide, twice distilled water, and a pH regulator of hydrochloric acid or sodium hydroxide; the pH value of the composite water-based adhesive is 5.5-8.0. The composite water-based adhesive of the present invention is a precursor solution formed from polypeptide and glycyrrhizic acid. Secondly, the polypeptide containing arginine residues was blended with the above precursor solution containing glycyrrhizic acid aggregates to form a composite water-based adhesive. The water-based adhesive provided by the present invention has stable and good self-healing ability, and has processability and degradability at the same time; the dry powder obtained after drying the adhesive of the present invention can immediately become an adhesive to restore viscosity after re-contacting water. It is a kind of composite water-based adhesive that is easy to store, recyclable and reusable.