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126 results about "Benzopyrenes" patented technology

A class of chemicals that contain an anthracene ring with a naphthalene ring attached to it.

Method for producing high-arene environment-friendly rubber oil

The invention relates to a method for producing high-arene environment-friendly rubber oil. The method comprises the steps of taking heavy-solvent extract oil of a lubricating-oil solvent-refining device as raw material, adding an auxiliary agent to the raw material and then refining solvent, wherein the heavy-solvent extract oil has the flash point higher than 200 DEG C, the kinematic viscosity greater than 15.0 mm<2>/s at 100 DEG C and the CA value greater than 35.0 percent; the auxiliary agent is single-hydrocarbon or light-hydrocarbon oil with low density, low viscosity and boiling point between 80 and 300 DEG C; the solvent is N-methyl pyrrolidone, phenol or furfural; a refining tower has the temperature between 50 and 100 DEG C on the top and has the temperature between 30 and 100 DEG C on the bottom; and the mass ratio of the raw material to the auxiliary agent to the solvent is 1.0:0.1-0.5:2.0-5.0. Refined oil is high in arene content; the CA value of the refined oil is above 19.0 percent; the arene content of the refined oil is greater than 50.0 percent; the PCA content of the refined oil determined by an IP346 method is less than 3.0 percent; the benzopyrene of the refined oil is less than 1 PPM; and the total content of eight specific polyaromatic hydrocarbon is less than 10 PPM.
Owner:PETROCHINA CO LTD

Production process of sesamol-rich fragrant sesame oil

The invention discloses a production process of sesamol-rich fragrant sesame oil. The production process is characterized by comprising the following steps of: cleaning and removing impurities; soaking and washing; naturally draining and germinating; frying seeds at a high temperature; cooling; grinding into pulp with a stone mill; adding water and stirring; turning oil (shaking oil); skimming oil; and standing and settling to obtain a finished product. The production process has the advantages that the defects of high probability of getting burnt during direct roasting of dry sesame and high probability of producing 3,4-benzopyrene after burning are avoided by soaking the sesame with water, draining and then roasting at the high temperature, the sesame seeds are germinated during washing, soaking and drainage of the sesame, the germinated sesame seeds are roasted at the high temperature and then grease is extracted, the sesamol content in the sesame oil is higher than that of the sesame oil extracted from the ungerminated sesame, sesame pulp has high water absorbing speed and high oil yield speed, the obtained sesame oil has better flavor, the content of vitamin E in the sesame oil extracted from the germinated sesame, which is washed and soaked with water and drained, is higher than that of the sesame oil extracted from the ungerminated sesame, and the oil yield is improved by 1-2 percent compared with that in the prior art.
Owner:HENAN UNIVERSITY OF TECHNOLOGY

Pickling method of preserved meat

InactiveCN101816434AGuaranteed to be moderately saltyKeep freshFood preparationBurned skinAbsorption capacity
The invention discloses a pickling method of preserved meat, which mainly comprises the following steps: cutting into strips-smearing seasonings-pickling-smoking-burning skin-cleaning-baking; the pickling steps of the method can lead a meat product to be tasty fast and have good tasting effect, the meat product is salty moderately and can avoid fat oxidation during the pickling process and preserve the fresh flavor of meat; the smoking temperature and the time are reasonably controlled during the smoking process, thereby leading the aroma of smog to be fully absorbed in the meat product and simultaneously avoiding meat stiffening due to excessive dehydration of cells; a condensing tube is adopted for condensing benzopyrene in the smog, thereby reducing the absorption capacity of the benzopyrene on the surface of the meat product and reducing the residual rate; the skin burning step can not only remove hair roots in the meat skin, but also lead the meat skin to be soft after boiling the preserved meat and facilitate the consumption; the cleaning step can clean dust particles on the surface of the meat product and further reduce the residue of the benzopyrene; and the meat product is dried at the specific temperature till the water content reaches 20%-25%, the meat product has good elasticity and high viscosity during the consumption, a consumer can not feel dry and astringent, and the taste is more comfortable.
Owner:巫溪县红池腊鲜食品有限公司

Novel process and technology for strengthening electric remediation and bioremediation of polycyclic aromatic hydrocarbon contaminated soil by using surfactant

The invention discloses a novel process and technology for strengthening electric remediation and bioremediation of polycyclic aromatic hydrocarbon contaminated soil by using a surfactant, and provides the novel process for strengthening the electric remediation and the bioremediation of the polycyclic aromatic hydrocarbon contaminated soil by using the surfactant, and parameters of the process, which effectively improves the efficiency of the slightly soluble organic pollutant in the bioremediation, and propels the researches on the electric remediation and in-situ bioremediation. According to the process provided by the invention, electrolytes of two electrodes are mixed and circulated, and the surfactant and microorganisms are added in the electrolytes for electric injection. A test for strengthening the electric remediation and the bioremediation by using the surfactant is carried out in conditions as follows: a voltage gradient is 1 V/cm; the electrolytes are bacterium suspension (containing nutrients) and the surfactant; a pH value is 7.3; and the flow velocity of the circulating electrolytes is 800 ml/h. Shown by a test result, the novel process for strengthening the electric remediation and the bioremediation by using the surfactant can effectively improve a degradation speed of the contaminated soil in China and Philippines, improves a degradation speed of pyrene and benzopyrene, and solves the problem that the acid-base variation of a pH value of the soil is easy to occur in the traditional electric remediation and bioremediation.
Owner:NANKAI UNIV

Ready-to-eat special flavor fish product subjected to cold smoking, and production process thereof

The invention belongs to the field of processing of aquatic products, and particularly relates to a ready-to-eat special flavor fish product subjected to cold smoking, and a production process thereof. The production process of the special flavor fish product comprises the following steps: using freshwater fish, a composite curing agent and a compound seasoning as raw materials, cutting the freshwater fish into square blocks after scaling, killing, gill removing, gutting removing, head removing and washing, then performing vacuum rolling and curing on the blocks, using a runner to absorb moisture of the blocks to realize drying at a low temperature, performing vacuum rolling for seasoning, and performing high-temperature sterilization and other processes to obtain the ready-to-eat special flavor fish product subjected to cold smoking. According to the invention, the curing process combines the curing agent with the vacuum rolling and curing, the drying manner that the runner is used to absorb moisture to realize drying at the low temperature is combined with a way that a surface air cooler is used to cool, and the compound seasoning is combined with the vacuum rolling technology, so that not only can the curing agent, the compound seasoning and a fish body be uniformly fixed, but also the curing time, the seasoning time and the drying time are remarkably reduced, the production cost is reduced, the fish tissue is promoted to be tighter, the texture and the taste are improved, the oxidation of highly unsaturated fatty acids in the fish body can be avoided, benzopyrene can not be produced, and the quality and safety of the product can be remarkably improved.
Owner:HUAZHONG AGRI UNIV +1

Sour and hot instant preserved meat and preparation method thereof

The invention discloses sour and hot instant preserved meat and a preparation method thereof. The sour and hot instant preserved meat is prepared from the following raw materials: fresh pork, fructo-oligosaccharide, cooking wine, strawberry wine, spice, edible salt, DVS lactic acid bacteria, table vinegar, lycopene, composite phosphate and lysozyme. The sour and hot instant preserved meat is dry and clean in product surface, red and bright in color, strong in fragrance and moderate in softness and hardness; by adopting mixed lactic acid bacteria, the preserved meat is easy to digest and absorb; due to the seasoning of the spice, the preserved meat is sour, hot and refreshing, unique in flavor, moderate in saltiness, fat but not greasy and lean but not sticking between the teeth, and has the effects of strengthening the spleen and promoting the appetite; the lactic acid bacteria are capable of inhibiting the growth of hybrid bacteria so as to prolong the expiration date; by adopting low-temperature salting and smoking, the residual quantities of nitrite of benzopyrene are remarkably decreased, so that the eating is safe and healthy; the lycopene and the lysozyme are capable of increasing the red color of the preserved meat and inhibiting the growth of the hybrid bacteria so as to prolong the expiration date; and the fresh pork is salted after tumbling and curing, so that the preserved meat is safe, sanitary, ready to eat, convenient to carry and eat, and suitable for the fast-paced life style.
Owner:郎溪县飞鲤镇幸福好运家畜养殖家庭农场

Graphene adsorbing material, preparation method therefor and application thereof, and cigarette filter tip and cigarette

ActiveUS20180228209A1Not affecting smoking taste of smokeReduce harmGas treatmentCigar manufactureFiberHazardous substance
A graphene adsorbing material, a preparation method therefor and application thereof, and a cigarette filter tip and a cigarette are provided. The graphene adsorbing material comprises a fiber carrier, graphene and doped elements wherein the graphene and the doped elements are loaded on the fiber carrier and the doped elements comprise at least one of Al, Si and Fe. The graphene adsorbing material is obtained by contacting the fibers with the graphene material to load the graphene material on the fibers. By introducing the graphene and the doped elements in the fiber carrier, harmful substances with a type of fused aromatic hydrocarbons such as benzopyrene in smoke can be specifically adsorbed, filtered and removed; while nicotine and the other harmless substances are retained, and thus the smoking taste of a cigarette is not affected. The cigarette filter tip can effectively adsorb cancerogenic substances with a type of fused aromatic hydrocarbons such as benzopyrene in smoke to reduce harm of smoking; meanwhile, the pleasure of smoking and the mellow taste of the smoke are not affected. Besides, the graphene adsorbing material can also prevent the phenomenon that a cigarette holder gets mildewed due to humid environment and the other factors.
Owner:JINAN SHENGQUAN GROUP SHARE HLDG

Antibacterial adsorbent selectively adsorbing nicotine and carbon monoxide in smoke and application in wrap paper thereof

InactiveCN101716492ANicotine reductionMaintain suction qualityOther chemical processesPaper/cardboardSodium BentoniteSorbent
The invention provides antibacterial adsorbent and a method for applying the adsorbent in wrap paper. The antibacterial adsorbent mainly selectively adsorbs nicotine and carbon monoxide in smoke, and has certain adsorbing effect to tar, NO, gas phase radical, benzopyrene and nitrite. The aim can be realized through the following technical means: the antibacterial adsorbent comprises the following compositions in parts by weight: 10 to 20 parts of tea polyphenol, 40 to 60 parts of copper-carrying zeolite molecular sieve, 20 to 30 parts of medical stone, and 30 to 50 parts of bentonite, wherein the granularity of each composition is between 100 and 200 meshes; and the tea polyphenol is dissolved in binder, after the copper-carrying zeolite molecular sieve, the medical stone and the bentonite are mixed and ground until the granularity is between 100 and 200 meshes, the mixture is adsorbed on the surface of the wrap base paper which is coated on one side of a filter stick through the binder dissolving the tea polyphenol, or is adsorbed on the surface of the wrap base paper in parallel arrangement, or is adhered on two sides of the wrap base paper to form an adsorption layer with thickness of between 0.05 to 0.1mm.
Owner:ENDIAN SCI & TECH DEV OF YUNNAN

Fermented preserved meat and preparation method thereof

The invention discloses fermented preserved meat and a preparation method thereof. The fermented preserved meat is prepared from the following raw materials: fresh pork, isomaltitol, cooking wine, strawberry wine, spices, salt, direct vat set, composite phosphate and lycopene. According to the fermented preserved meat and the preparation method thereof, the fermented preserved meat is dry, clean, moderate in density, smooth in section, bright red in color and luster and thick in flavor; mixed lactic acid bacteria fermentation is adopted, so that small molecular nutrients are added, the fermented preserved meat is easy to digest and absorb, unique in flavor, moderate in saltiness, sweet and sour in taste, fat but not greasy, and lean but cannot plugged teeth; the guarantee period is prolonged; low-temperature pickling and smoking are adopted, so that the residues of nitrite and benzopyrene are obviously reduced, and the fermented preserved meat is safe and healthy to eat; the lycopene can deepen the red color of the preserved meat, suppress bacterial growth, and perform natural antioxidation, so that the flavor of the preserved meat is strengthened; the guarantee period is prolonged; vacuum packaging is adopted, so that the fermented preserved meat does not go bad after being stored at room temperature for two years, and is clean, healthful and convenient to carry.
Owner:郎溪县飞鲤镇幸福好运家畜养殖家庭农场
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