47results about How to "Prolong digestion time" patented technology

The invention relates to the field of medical jurisprudence inspection, in particular to a diatom inspection method in medical jurisprudence. The method at least comprises the following steps: (1) microwave digestion: adding concentrated nitric acid and hydrogen peroxide solution into the inspected sample to carry out microwave digestion; (2) vacuum filtration: carrying out vacuum filtration on the digestion solution, adding ultrapure water, carrying out vacuum filtration continually until the surface of the filter membrane is approximately neutral, adding absolute ethyl alcohol, and carrying out vacuum filtration to remove moisture from the filter membrane; (3) a scanning electron microscope automatically takes pictures and stores the pictures; and (4) qualitative and quantitative analysis on diatom: carrying out inspection, classification and statistic treatment on the diatom in the on-spot pictures in an artificial identification way or computer automated identification way. The invention has the advantages of high detection sensitivity, high accuracy of qualitative and quantitative analysis, simpleness, high efficiency and environmental protection, can effectively avoid pollution, greatly improves the working environment for diatom inspection technicians in medical jurisprudence, and reduces the labor intensity, thereby having wide application prospects in drowning diagnosis practice in medical jurisprudence.

The invention discloses an aerated concrete building block produced by heavy metal-removed manganese carbonate tailing and a manufacturing method thereof. The aerated concrete building block comprises the following components in percentage by weight: 10-70% of heavy metal-removed manganese carbonate tailing, 0-70% of sand, 5-25% of lime, 4-20% of cement and 0.005-0.1% of aluminum powder. The invention has the advantages that according to the formula and the method of the invention, manganese carbonate concentrate which can reach mine entering grade in the manganese carbonate slag can be obtained, thus saving mineral product resources; meanwhile, the aerated concrete building block produced by heavy metal removed secondary manganese carbonate tailing conforms to the national standard (GB11968) and can reach the standard of qualified products of each grade or high-class products in the standard.

The invention discloses a high-extraction-purity, good-integrity and high-yield extraction method of apostichopus japonicus body-wall total RNA (Ribonucleic Acid). The method comprises the following steps of: quickly freezing apostichopus japonicus body-wall tissue in liquid nitrogen; grinding and putting the frozen tissue in lysate to homogenate, centrifugate and take supernatant fluid; adding chloroform to the supernatant fluid and centrifugating to take the supernatant fluid to another centrifuge tube; then, adding a high-salt solution and isopropyl alcohol and filtering precipitation with ethanol; dissolving the precipitation with DEPC (diethypyrocarbonate) treated water to have constant volume; sequentially adding a DNA enzyme buffer solution without RNA enzymes, DNA enzymes without RNA enzymes and an RNA enzyme inhibitor to the dissolved solution to mix; carrying out a water bath at 37 DEG C to obtain DNA lysate; adding phenol and chloroform in a ratio of 5:1 to the DNA lysate to mix, centrifugate and take supernatant fluid; adding a glycogen solution, a potassium acetate solution and pre-cooling ethanol to the supernatant fluid; mixing and staying over night; centrifugating to discard the supernatant fluid; washing and dying the precipitation with ethanol; dissolving the solution with the DEPC treated water to have constant volume of 20 mu l; and storing at 80 DEG C below zero.

The invention discloses a preparation method for producing an autoclaved aerated concrete block by using antimony ore tailings. The preparation method comprises the following steps: (1) drying and grinding the antimony ore tailings, and then screening to obtain standby antimony ore tailings with particle diameters less than or equal to 0.150 mm; (2) mixing and stirring the antimony ore tailings obtained from the step (1) with quicklime powder, fly ash, cement, gypsum and water, wherein raw materials are as follows in percentage by weight: 65%-75% of the antimony ore tailings, 13%-23% of the fly ash, 5% of the quicklime powder, 2% of the gypsum and 5% of the cement, and the water-material ratio is 0.60-0.68; then adding a foaming aluminum powder suspension, wherein the weight of aluminum powder contained in the foaming aluminum powder suspension accounts for 0.10%-0.15% of the dry weight of the raw materials; (3) foaming a mixed slurry obtained from the step (2) into a blank, and curing; (4) carrying out autoclaved curing on the blank obtained from the step (3) to obtain the autoclaved aerated concrete block. The preparation method disclosed by the invention can be used for saving the energy resources and the resources by substituting the antimony ore tailings for sand, achieves the harmless and recycling utilization of the antimony ore tailings, accords with the national circular economy industrial policy and achieves outstanding economic benefits, social benefits and environmental benefits.

The invention discloses a method for mixed fermentation of sludge disintegrated by low-strength ultrasonic wave and crop straws pretreated by fermentation broth and application of the method in improving mesophilic two-phase anaerobic digestion. The method comprises the following steps: mixing the sludge and the straw to perform hydrolytic acidification, wherein the sludge is pretreated by the low-strength ultrasonic wave; refluxing the straws with the hydrolytic acidified fermentation broth after the sludge and the straw are mixed; and mixing the straws treated by the fermentation broth with the sludge again, and performing hydrolytic acidification. The method provided by the invention improves mesophilic two-phase anaerobic digestion performance of the sludge, increases the gas yield and stability of the sludge, and shortens the anaerobic digestion time.

The invention discloses a collecting and conveying pipeline segmented pipe cleaning system and method. The collecting and conveying pipeline segmented pipe cleaning system comprises at least one intermediate pipe cleaning system arranged along a collecting and conveying trunk line, and the intermediate pipe cleaning system comprises a trunk pipe cleaner staying / transmitting system, a large bypasssystem, a pipe cleaner indicating system and a logic control system. Compared with the prior art, the segmented pipe cleaning system has the positive effects that on the basis of accumulated liquid and slug injection load process analysis, pipeline section plug flow digestion is carried out in a sectional pipe cleaning mode; and by means of inverse-sequence pipe cleaning, the volume of the pipeline after the downstream advance pipe cleaning is utilized to the largest extent, so that the upstream incoming liquid receiving is achieved, the plug flow load of the end point section is reduced, andextension of a large-scale section plug flow catcher is avoided. The pipe cleaning system is simple in structure; and compared with addition of a conventional cleaning station, according to the the collecting and conveying pipeline segmented pipe cleaning system, a pipe cleaner ball collecting barrel, a ball serving barrel and accessory facilities can be avoided, and the system has advantages in large-caliber and high-pressure pipeline engineering projects.

The invention relates to a method for extracting potassium from straws which adopts the water as leaching agent, uses microwave technique to damage fibrous tissue structure of the straws so that the potassium in the straws are precipitated in the form of ions; ion exchanger such as cation exchange resin or zeolite are used for separating and leaching the potassium in the solution; the solution such as hydrochloride, sulfate, nitric acid and so on are adopted to carry out the extrication; extrication liquid is evaporated, concentrated and crystallized to obtain the corresponding potassium salt products such as potassium chloride, potassium sulfate, potassium nitrate and so on. The experimental result displays that: extraction rate of the potassium in the straws can reach more than 70 percent and the concentration of the potassium in leaching solution can reach 3.6g / l. The method is also applied to the extraction of the potassium in the analog substances like wheat, corns, bamboos, trees and so on.

The invention discloses an integrated dry-wet anaerobic digestion device. The integrated dry-wet anaerobic digestion device comprises a digestion tank, and a feed pipe and a bottom sullage discharge pipe are arranged at the bottom of the digestion tank. The integrated dry-wet anaerobic digestion device is characterized in that a dry anaerobic region, a three-phase separation region and a wet anaerobic region are arranged in the digestion tank from bottom to top; a stirrer is arranged in the dry anaerobic region and carries out material stirring, large-size organic materials are decomposed into small-size materials in the dry anaerobic region, and a great number of biogas bubbles are generated; the large-size solid materials return to the dry anaerobic region through the three-phase separation region, and the small-size materials and liquid phase enter the wet anaerobic region; a biogas aerator pipe is arranged in the wet anaerobic region, an upper discharge pipe is arranged on the upper portion of the wet anaerobic region, water is output through the upper discharge pipe in an overflow mode, the biogas generated under the anaerobic condition enters a top air chamber in the upper portion of the wet anaerobic region, and a top biogas pipe is arranged at the top of the top air chamber. The integrated dry-wet anaerobic digestion device is high in organic matter degradation rate, high in biogas content, low in biogas residue yield, high in outlet water quality, capable of automatically and continuously producing biogas with high-concentration organic solid waste and particularly suitable for anaerobic digestion production of the organic materials which are low in water content and high in impurity content.

The invention relates to the technical field of quicklime hydration, in particular to a quicklime hydration method. The method comprises the steps that a traditional spiral propeller is transformed into a flat-blade paddle stirring rod, quicklime is squeezed and pushed to pass through three hydration chambers by means of the accumulation of the quicklime under the action of the gravity, the hydration time is prolonged, and the hydration degree of the quicklime in the hydration chambers is greatly increased; the temperature in the hydration chambers is controlled to be 100-120 DEG C through a gas circulation system and condensing equipment, thereby not only ensuring the quick hydration of the quicklime, but also avoiding the damage of a high-temperature environment to the equipment, and also ensuring that the quicklime and calcium hydroxide have moderate viscidity during hydration, so that pelletizing is facilitated, the gas permeability during sintering is good, and the yield and quality of sintered ore are greatly improved; clogging of the hydration chambers caused by excessively sticky raw materials is also overcome.

The invention discloses a blood sugar reducing product containing rich bitter gourd polypeptide and relates to the technical field of food. The blood sugar reducing product comprises raw materials inpercentage by weight of a composition as follows: 35%-45% of bitter gourd polypeptide, 18%-25% of resistant dextrin, 10%-15% of a cucumber extract, 10%-15% of a green coffee extract, 10%-15% of a kudzuvine root extract, 2%-3% of a white kidney bean extract, 3%-5% of natural juice powder, 0.5%-1% of chromium yeast, 0.01%-0.02% of vitamin B2 and 0.01%-0.02% of vitamin B6. The blood sugar reducing product containing rich bitter gourd polypeptide has a remarkable blood sugar reducing effect, has no toxic or side effects, can prevent and control other cardiovascular diseases while controlling bloodsugar of the human body, can meet the requirement of people for nutrient and healthy blood sugar reducing products and has wide market prospects.

An amnion cell separation and collection purification set relates to an amnion cell separation set. The amnion cell separation and collection purification set is used for solving the problems that during amnion cell separation, an amnion is often accumulated in a digestion container, so that a lot of cells are remained among amnion tissues, the amnion cells cannot be efficiently collected, and the obtained cell line is unpurified. The set comprises an amnion cell fixing rotary frame, an amnion tissue digester, an amnion cell separator, a disposable screwed filter, a disposable screwed injector and a disposable screwed centrifuge tube; a threaded circular rod is arranged on the top of a hollow object placing groove of the amnion cell fixing rotary frame; the threaded circular rod is externally connected with a T-shaped handle; a thin plate is arranged in the object placing groove; the amnion tissue digester is of a hollow cube structure; a top cover is arranged on the top of the amnion tissue digester; a liquid inlet screwed opening is formed in one side of the upper part of the amnion tissue digester; a liquid discharge screwed opening is formed in the bottom of the amnion tissue digester; the amnion cell separator is of a hollow cylinder structure; a top cover is arranged on the top of the amnion cell separator; a liquid inlet screwed opening is formed in the side face of the upper part of the amnion cell separator; a liquid discharging screwed opening is formed in the bottom of the amnion cell separator. The amnion cell separation and collection purification set is used for separating and collecting amniotic epithelial cells.

The invention discloses a comprehensive utilization method for potato residues, potato juice and modified starch based on juicing of potatoes. The method comprises the following steps: with cleaned, sorted and sieved potatoes as a raw material, carrying out juicing on the potatoes in the process of extraction of starch from the potatoes; separating starch so as to obtain potato residues and potato juice; and separately conveying the potato residues and the potato juice to respective treating zones for treatment via pipelines or conveyer belts. According to the invention, juicing is carried out on the basis of extraction of starch from the potatoes and then comprehensive treatment is carried out on the products, i.e., the potato residues, the potato juice and the starch, so the industrialization level of the potato industry is improved and application of potatoes as staple food grain is promoted. In the process of processing, flour and potato modified starch adsorb and bond with water molecules, and cross-linking and coagulation occur, so a novel crystal structure is formed; the novel crystal structure is low in solubility in water, enzymatic hydrolysis is reduced, and digestion and absorption are slowed down; and thus, the composition of starch in wheaten food can be changed, and rise in blood sugar and the reaction of plasma insulin after meal are delayed.

The invention discloses a probiotic feed additive for piglets, and a preparation method thereof. The probiotic feed additive comprises, by weight, 10-15 parts of probiotic powder, 20-30 parts of a polysaccharide raw material, 15-20 parts of amino acids, 100-150 parts of soybeans, 80-100 parts of potatoes, 8-10 parts of lignocellulose, 15-20 parts of a feed attractant composition, 5-8 parts of an enzyme preparation and 5-8 parts of an acidifier. The feed additive for piglets has strong palatability, and can strengthen the stomach, digest foods and promote digestion; and the feed additive is rich in a large number of probiotics, so the feed additive can help to degrade proteins and amino acids in the piglets, reduce the content of ammonia gas and hydrogen sulfide gas in piglet feces, eliminate the unpleasant gas in a pigpen and improve the ecological environment, and facilitates the human and animal health.

The invention provides a stirring device of a dedusting digester. In the oblique digester, due to the action of gravity component force of digested lime, friction resistance is reduced, thrust required by movement of digested lime is reduced too, and abrasion of blades of the digester is reduced. Under the condition that driving force is unchanged, the transmission capacity of the digester is improved, most lime becomes powder and adheres to the digester in the third stage of digestion, powder can move fast automatically, and lime not digested completely continues to stay at the bottom of a cavity of the digester to be digested. The length of the digester can be increased appropriately so as to prolong lime digestion time; meanwhile, an outlet of the digester can be enlarged to avoid digester blocking caused by unsmooth discharging. A detachable alloy blade device is adopted, time and labor are saved, and using is convenient and quick. Due to the fact that a framework oil seal spindle is replaced with a labyrinth gland, sealing effect is good, maintenance is not needed at all, and operation and using are more convenient.

An iron ore sintering method comprises the steps of mixing iron ore powder, dolomite powder and the like, adding to a motion belt of a belt conveyor (9) according to a mixture calculation result, conveying the material on the belt into a primary mixer (10) for wetting with water and primary mixing, then conveying to a primary mixing bunker (12) for storage, conveying the stored material to a secondary mixer (11) for pelletizing or granulating, and finally allowing the material to enter a sintering machine trolley in a distribution manner for sintering. The method is characterized in that a plough-shaped device (13) is mounted between a limestone ore bin (3) and a quicklime ore bin (4) and above the belt conveyor (9) and plows a groove in a material layer of the belt conveyor; quicklime in the quicklime ore bin (4) is added into the plowed groove through a corresponding electronic batching belt weigher; in addition, digestion water or a high water content material is added onto a quicklime layer in the groove on the belt of the belt conveyor (9) to allow the quicklime to perform digestion reaction.

The invention provides a separation and purification method of eimeria tenella sporozoite and an inoculation method, and relates to the technical field of biology. The separation and purification method comprises the following steps: taking infected chicken manure, adding water, and filtering; centrifuging, adding a saturated saline solution into the precipitate, centrifuging, and adding water into the supernate to obtain an oocyst diluent; centrifuging, and adding chloramine T solution into precipitate to obtain sporulated oocyst suspension; centrifuging, adding saturated saline solution into the precipitate for resuspending, centrifuging and collecting oocyst precipitate; adding a sodium hypochlorite solution for resuspension, and collecting oocysts; and shaking and crushing, stopping shaking when all sporangia escapes, centrifuging to obtain sporangia, adding pancreatin digestive juice for digestion, filtering, centrifuging, and collecting precipitate to obtain eimeria tenella sporozoites. According to the inoculation method, the sporangiums or sporozoites are accurately injected into the middle sections of muscular stomachs and small intestines of the chickens, and successful infection is achieved. The purification degree of the sporangiums and sporozoites obtained by the purification method is high, the experimental operation is simple and convenient, and the infection success rate after injection inoculation reaches 100%.

The invention relates to sea cucumber and spirulina mixed powder and a preparation method thereof. The method comprises the steps as follows: removing internal organs of fresh sea cucumbers, performing cleaning, vacuum rolling, vacuum freeze drying and superfine grinding sequentially, and then uniformly mixing the obtained material with spirulina powder. Heat processing and colloid mill grinding of sea cucumbers are not required in advance, the fresh sea cucumbers have increased volume, fluffy texture and reduced toughness after vacuum rolling, materials collide with each other and rotate by rolling, and collapse of tissue is accelerated. The vacuum freeze drying efficiency is improved due to more fluffy texture, and the process difficulty of superfine grinding can be reduced and the efficiency of superfine grinding can be improved due to reduction of toughness. Superfine sea cucumber powder and small-grained spirulina powder are mixed, the brewing performance of the powder is improvedwhile nutrient and healthcare functions of the two components are combined.

The invention discloses an integrated dry-wet anaerobic digestion method; a dry anaerobic area, a three-phase separation area and a wet anaerobic area are arranged in a digestion tank respectively from bottom to top, the dry anaerobic area is provided with a stirrer that provides stirring for material, large-particle-size organic material is degraded into small-particle-size material in the dry anaerobic area, with mass methane bubbles generated, large-particle-size solid material is returned from the three-phase separation area to the dry anaerobic area, small-particle-size solid material and liquid material are fed into the wet anaerobic area, the wet anaerobic area is provided with a methane aerating pipe, the upper portion of the wet anaerobic area is provided with an upper discharge pipe, water overflows from the upper discharge pipe, methane produced by anaerobic digestion enters a top gas chamber above the wet anaerobic area, and the top of the top gas chamber is provided with a top methane pipe. An integrated dry-wet anaerobic digestion apparatus provided herein is high in organics degradation rate, high in methane production, low in residue production and good in effluent quality, is available for automatic continuous methane production from high-concentration organic solid waste, and is suitable particularly for the anaerobic digestive production of low-water-content high-impurity-content organic materials.

The invention discloses fine dried noodles having a blood sugar reducing effect. The fine dried noodles having a blood sugar reducing effect are made from the following raw materials in parts by weight: 20-40 parts of triticale, 5-40 parts of Tartary buckwheat, 2-30 parts of highland barley, 2-20 parts of oat, 5-20 parts of quinoa, 1-20 parts of pumpkins, 1-20 parts of chickpeas, 1-20 parts of Chinese yams, 1-20 parts of konjac, 1-20 parts of peas, 0.1-3 part of edible salt and 24-27 parts of water. The preparation method comprises the following steps: (1) weighing the raw materials; (2) stirring and mixing the raw materials except water; (3) adding water and performing curing; (4) performing calendering; (5) performing cutting to obtain noodles; and (6) performing drying to obtain the product. The fine dried noodles capable of reducing blood sugar disclosed by the invention adopt pure natural raw materials, are exact in curative effect and free of obvious toxic and side effects, and can promote islet cell regeneration and enable insulin secretion to recover normal functions, so that the symptoms of diabetic patients are improved until the purpose of rehabilitation is achieved.

The invention provides a nano-micron grade nutritional staple food, and a preparation method thereof. The nano-micron grade nutritional staple food comprises a fore layer and a shell layer used for coating the core layer; the core layer comprises a first nutrient component with a particle size of 100nm to 1000<mu>m; the first nutrient component comprises staple food components; the shell layer comprises a second nutrient component; the second nutrient component comprises dietary fiber and food borne short peptides. According to the preparation method, postprandial blood glucose rapid increasing is controlled effectively by construction of the physical structure of the nano-micron grade nutritional staple food, continuous energy supply for the body is realized; at the same time, the particle size of the staple food components which are capable of causing rough mouthfeel is controlled to be 100nm to 1000<mu>m, so that staple food mouthfeel is improved. The nano-micron grade nutritional staple food contains the staple food components, the food borne short peptides, and cellulose at the same time, so that nutrition is more comprehensive, and comprehensive nutrients are provided for thebody.

The invention provides a probiotic microcapsule and a preparation method thereof, and belongs to the technical field of microcapsules. The preparation method comprises the following steps: respectively preparing a porous starch-polyethyleneimine carrier, a porous starch-polyethyleneimine carrier filled with solid grease, an acetylated porous starch-polyethyleneimine carrier, a porous starch-polyethyleneimine carrier without solid grease, and porous starch bacterial sludge adsorbing probiotics; and embedding the porous starch bacterial sludge adsorbing the probiotics by adopting biological polyelectrolyte to obtain the layer-by-layer self-assembled probiotic microcapsules. According to the probiotic microcapsule disclosed by the invention, survival rate of the probiotics can be remarkably improved.

The invention belongs to the technical field of environmental protection, and relates to a method and a device for quickly and accurately resolving and measuring total nitrogen with a portable pressure cooker combined with colorimetric tubes. According to the method and the device, the colorimetric tubes can be vertically and uniformly distributed in the portable pressure cooker, so that samples can sufficiently contact with high temperature steam; sufficient digestion of potassium persulfate is achieved, so that the problem of excessive white light absorption caused by incomplete digestion ofthe potassium persulfate is solved; the method and the device can also fix the plugs of the colorimetric tubes, so that the measurement error caused by loosening or ejection of the plugs of the colorimetric tubes in the high-temperature and high-pressure environment is prevented; the invention takes full advantage of the existing pressure cooker and the colorimetric tubes in the total nitrogen measuring labor, so that idle and waste of resources are not incurred; the problem of excessive white light absorption caused by incomplete digestion can be prevented to the greatest extent; in this way, a lot of manpower and material resources in the exploration process of the operator can be saved; and the invention has an important meaning in total nitrogen measurement.

The invention provides a detection method for measuring tin content in soil by an inductively coupled plasma mass spectrometry. The method comprises the following steps: preparation of a standard usesolution, preparation of a standard solution, preparation of a test solution, preparation of a reagent blank solution, determination and the like.

The invention belongs to the technical field of algae chemical engineering and particularly relates to a method of rapidly digesting brown algae to extract algin. The method includes steps of: (1) crushing: crushing the brown algae until average sieve size d50 is not more than 1 mm; (2) digestion: performing alkaline digestion to the crushed brown algae to prepare digestion liquid; (3) production:processing the digestion liquid to obtain the algin. In the process, the brown algae is crushed until the d50 is not more than 1 mm; for production with large-scale use of dried brown algae as raw material, the process route including soaking, coating (dicing or crushing of wet algae) and digestion is shortened into a process route including crushing and digestion, so that digestion time is reduced to within 1.5 h, and yield of algin can reach 30-38 g / 100g and yield coefficient of the algin can reach 70-90%, wherein viscosity of a 1% sodium alginate water solution can reach 1000 mPa*s.

The invention discloses an integrated dry-wet anaerobic digestion method. A dry anaerobic zone, a three-phase separation zone and a wet anaerobic zone are respectively arranged inside the digestion tank from bottom to top; the dry anaerobic zone is provided with stirring The agitator realizes the material stirring, and the organic material with a large particle size is degraded into a small-size material in the dry anaerobic zone, and a large amount of biogas bubbles are generated at the same time; the solid-phase material with a large particle size returns to the dry-type anaerobic zone through the three-phase separation zone. anaerobic zone, while the small particle size and liquid phase enter the wet anaerobic zone; the wet anaerobic zone is provided with a biogas aeration pipe, and the upper part of the wet anaerobic zone is provided with an upper discharge pipe, and the upper discharge pipe is used to overflow The way the water is discharged, the biogas produced by anaerobic enters the top air chamber above the wet anaerobic zone, and the top biogas pipe is set on the top of the top air chamber. The integrated dry-wet anaerobic digestion device provided by the present invention has high organic matter degradation rate, high biogas output, low biogas residue output, and good effluent quality, which can realize automatic and continuous biogas production of high-concentration organic solid waste, and is especially suitable for low moisture content and impurities. Anaerobic digestion of organic materials with high content.

The invention discloses a complete formula feed for domesticated snakes. The complete formula feed is prepared from the following raw materials in parts by weight: 40 to 90 parts of fish meat, 5 to 40 parts of chicken meat, 5 to 40 parts of duck meat, 5 to 20 parts of flour, 0.1 to 0.5 part of hawthorn fruit powder, 0.05 to 0.5 part of coptis chinensis powder, 0.01 to 0.5 part of astragalus membranaceus powder, 0.05 to 0.5 part of pericarpium citri reticulatae powder, 0.01 to 0.1 part of compound enzyme, 0.001 to 0.01 part of decavitamin, 0.001 to 0.01 part of microelement, 0.001 to 0.005 part of wild silkworm spore fungus, 1 to 5 parts of wheat plant protein powder, 2 to 10 parts of sodium alginate and 2 to 10 parts of calcium chloride. After the domesticated snakes are fed by the complete formula feed, the domesticated snakes have the characteristics of rapid growth, few disease suffering times, good digestive absorption and low parasite infection rate. Thus, the survival rate and the fecundity of the domesticated snakes are obviously improved.

The invention discloses a method for mixed fermentation of sludge disintegrated by low-strength ultrasonic wave and crop straws pretreated by fermentation broth and application of the method in improving mesophilic two-phase anaerobic digestion. The method comprises the following steps: mixing the sludge and the straw to perform hydrolytic acidification, wherein the sludge is pretreated by the low-strength ultrasonic wave; refluxing the straws with the hydrolytic acidified fermentation broth after the sludge and the straw are mixed; and mixing the straws treated by the fermentation broth with the sludge again, and performing hydrolytic acidification. The method provided by the invention improves mesophilic two-phase anaerobic digestion performance of the sludge, increases the gas yield and stability of the sludge, and shortens the anaerobic digestion time.

The invention discloses an in vitro simulated digestion box, which comprises sequentially connected stomach digestion parts, small intestine digestion parts and large intestine digestion parts; the stomach digestion parts are riveted and connected by an upper assembly and a lower assembly; liquid inlet, stomach digestive juice inlet, sampling port and stomach digestion sample outlet; the small intestine digestion part is connected by riveting of the first component and the second component, and the small intestine digestion part includes a sample inlet, a stomach digestion sample inlet, an intestinal digestion sample Outlet and intestinal digestion sample sampling port, the large intestine digestion part is riveted connection by the third component and the fourth component, and the large intestine digestion part includes an intestinal digestion sample inlet, a cell culture medium inlet, a digestion and absorption sample outlet, and a metabolic digestion sample outlet and polycarbonate film. The in vitro simulated digestion box has a stable structure and good reproducibility; the equipment is simple and the conditions are easy to control.