30results about How to "Enables continuous extraction" patented technology

The invention relates to a device and a method for quick extraction of electrical stimulation earthworm body fluid, and aims to solve the technical difficult problems that the natural secretion of earthworm body fluid is little and the earthworm body fluid is difficult to collect on the premise of keeping the components and nature of the earthworm body fluid unchanged and trying to reducing the injury to the living earthworm, and meet the quick extraction requirement of earthworm body fluid in experimental investigation. The device comprises an extraction box, a separation plate and a collection box which adopts ultra-high molecular weight polyethylene and other hydrophobic material; the hole pattern of the separation plate is a conical counter bore; one end of each metal electrode plate is provided with an insulated handle, and each conductive end and the corresponding insulated handle are placed adjacently to form a pole plate group with an adjustable distance; the output voltage range of an adjustable direct current power supply is adjustable. The method comprises the steps that the cleaned living earthworm washed is arranged among the pole plate groups, spacing between adjacent pole plates is adjusted to tightly clamp the earthworm; after the power supply is electrified, the earthworm body is communicated with every two pole plates to form loop current, and the earthworm is stimulated to secrete a large amount of body fluid; the body fluid drops into the collection box through the separation plate under the action of gravity, and the crude extract of earthworm body fluid is obtained.

The invention relates to a system and method for natural animal and plant extraction. The system for natural animal and plant extraction comprises a supercritical carbon dioxide extraction unit, a high-pressure-difference continuous extraction and separation unit, an extraction buffer tank and an auxiliary engineering truck unit. The above devices cooperate with each other, so the system for natural animal and plant extraction has the advantages of comprehensiveness in extraction of fat-soluble and water-soluble components from natural animals and plants, realization of industrial continuous production, reduction of the emission of waste residues, energy saving, greenness and environmental protection. The system for natural animal and plant extraction enables the whole extraction system tobe in a sterile state, so mildewing is effectively avoided, and the safety of the extracted natural animal and plant extract is improved.

The invention provides an efficient continuous extraction device which comprises a frame and a rotary tank arranged on the frame and provided with a cavity inside, wherein one end of the rotary tank is provided with a feed opening, and the other end is provided with a discharge opening. The device is characterized in that at least two conical extraction chambers of which the head ends and the tail ends are communicated are arranged in the cavity of the rotary tank from the feed opening to the discharge opening; helical blades are arranged in each conical extraction chamber along the wall surface. Therefore, the mixing intensity of materials and extracts is effectively increased, and all materials are caused to be in full contact with the extracts in the continuous mixing process so as to greatly increase the extraction efficiency; simultaneously, the materials and the extract are fed into the tank cavity via the feed opening, and then continuously move to the discharge opening in the rotation and extraction process; solid and liquid are separated via a discharge net, and respectively discharged. The efficient continuous extraction device completely realizes the continuous extraction, is suitable for solid-liquid extraction at any solid-to-liquid ratio, completely meets extraction requirements of high and low concentrations, and saves the extract and energy required by concentration, and the phenomenon that the raw materials are polluted by leaking oil does not occur in the rotary tank.

The invention provides a method for separating and extracting a maize yellow pigment and zein from maize protein powder by using a membrane separation technology. The method comprises the steps: crushing the maize protein powder, then, mixing the crushed maize protein powder with an aqueous solution of ethanol, and carrying out ultrasonic extraction under shaded conditions; carrying out centrifugation after the ultrasonic extraction is completed, so as to obtain supernatant; carrying out membrane separation on the supernatant, so as to obtain a maize yellow pigment solution and a zein solution; subjecting the maize yellow pigment solution to vacuum concentration so as to obtain red oily liquid, i.e., the maize yellow pigment product; subjecting the zein solution to water washing, precipitating and drying, so as to obtain white solids, i.e., the zein. According to the method, the continuous extraction of the maize yellow pigment and the zein is achieved, and meanwhile, the product quality of the maize yellow pigment and the zein is improved. Compared with the existing technologies which are used for carrying out single processing on the maize protein powder, the method has the advantages that the yield of products, i.e., the maize yellow pigment and the zein is increased, the purity of the products is improved, and thus, the added value and economic benefit of the maize protein powder are improved.

The invention provides an enzymatic method integrated extraction method of functional polysaccharide and proanthocyanidin in longan peel, and belongs to the technical field of biological extraction. According to the enzymatic method integrated extraction method, the functional polysaccharide and the proanthocyanidin are jointly extracted by hot-water enzymatic extraction, concentration, standing and layering. The method is simple and rapid in extraction process and low in cost, achieves high-value resource utilization of longan peel waste, increases the deep processing benefit of longan, and has the positive promotion effect on comprehensive development of longan byproducts.

The invention discloses a feed additive for sows at an early pregnancy period. The feed additive is prepared by the preparation method comprising the following steps of (1) treating raw materials: removing fine hair on the surfaces of fresh immature fructus momordicae and falling fructus momordicae, then adding fresh fructus momordicae stems and leaves, of which the weight is one fifth to one fourth of that of the fructus momordicae without the fine hair to obtain materials; (2) performing subcritical water extraction: breaking the materials obtained in step (1), adding deionized water of which the weight is the same as that of the materials, performing subcritical water extraction, wherein the extraction temperature is 120-160 DEG C, the pressure is 5-8MPa, and the extraction time is 10-15min, ending the extraction, performing pressure relief, and collecting extract liquid; and (3) performing concentration: concentrating the extraction liquid obtained in the step (2) to thick paste ofwhich the relative density is 1.10-1.15 at 70 DEG C, so that the feed additive is obtained.

The invention discloses a method and equipment for preparing natural perfume, and relates to the field of preparation of natural perfume. The natural perfume can be prepared in multiple batches or can be continuously prepared by the aid of the method and the equipment. The equipment comprises an extraction tank, a heat exchange structure and an oil and water separator. A first channel is formed between an outlet of the oil and water separator and an inlet of the extraction tank, and a second channel is formed between an outlet of the heat exchange structure and the inlet of the extraction tank. One of the first channel and the second channel can be selectively conducted. Fluid outputted from the extraction tank can flow back into the extraction tank via the heat exchange structure, the oil and water separator and the first channel when the first channel is conducted; the fluid outputted from the extraction tank can flow back into the extraction tank via the heat exchange structure and the second channel when the second channel is conducted. According to the technical scheme, the method and the equipment have the advantage that plant essential oil and tincture can be continuously extracted by the aid of the method and the equipment.

The invention discloses a feed additive for increasing the lactation yield of sows in the perinatal period. A preparation method of the feed additive comprises the following steps: (1) treating a rawmaterial: removing villi on the surfaces of fresh immature siraitia grosvenorii and falling siraitia grosvenorii, and then adding fresh siraitia grosvenorii stems and leaves, wherein the adding amountof the siraitia grosvenorii stems and leaves is 1/5-1/4 of the weight of the siraitia grosvenorii; (2) carrying out subcritical water extraction: crushing the raw material obtained in the step (1), adding deionized water into the crushed material, wherein the weight of the added deionized water is equal to that of the crushed material, and carrying out the subcritical water extraction for 10-15min at the temperature of 150-160 DEG C under the condition that the pressure is 5-8MPa; after the extraction is finished, relieving the pressure and collecting extract; (3) concentrating: concentratingthe extract obtained in the step (2) into thick paste which has a relative density of 1.10-1.15 at the temperature of 70 DEG C so as to obtain the feed additive.

The invention discloses aphrodisiacs used for sows at a copulation period. The aphrodisiacs is prepared by the following preparation method: 1) raw material treatment: removing villus on the surface of grosvenor momordica fruit for fresh and unripe grosvenor momordica fruit and dropped grosvenor momordica fruit; 2) subcritical water extraction: crushing the raw materials obtained in the last step,adding deionized water which is as heavy as the raw materials, performing subcritical water extraction at an extraction temperature of 120-150 DEG C for 10-15 minutes under a pressure of 5-8 MPa, releasing pressure after extraction is ended, and collecting an extracting solution; and 3) filtration: performing 0.45 mu m filtration on the extracting solution obtained in the last step, and performing sealing and storing, thereby obtaining the aphrodisiacs.

The invention discloses continuous extracting equipment and method for extracting medical stone by the equipment. The continuous extracting equipment comprises a water inlet tube, a working extractingunit and an extracting solution discharging tube, and further comprises a standby extracting unit, wherein the water inlet tube, the working extracting unit and the extracting solution discharging tube are connected continuously; the working extracting unit comprises at least one extracting devices which are connected in series; the standby extracting unit comprises at least one extracting device, each extracting device comprises an extracting column and a detecting device, each extracting column is filled with an extracting raw material, and each detecting device is used for detecting expected parameters of an extracting solution which flows out of the corresponding extracting column; and when the number of the expected parameters detected by the detecting devices in the working extracting unit is lower than a preset value, each extracting device including the corresponding detecting device stops working, and the extracting devices in the standby extracting unit are connected to thetail end of the working extracting unit during operation. The equipment does not need to stop, but continuous product can be realized, the method for extracting the medical stone by the equipment is simple and efficient, and meanwhile, the stability of products is ensured.

The invention discloses an aphrodisiac for sows in a breeding period. The aphrodisiac is obtained by a preparation method comprises the following steps: 1) raw material processing: taking fresh immature and fallen siraitia grosvenorii fruits, removing villi on surfaces of the siraitia grosvenorii fruits, adding 1/5-1/4 by weight of fresh siraitia grosvenorii stems and leaves; 2) subcritical waterextraction: crushing the raw materials obtained in the step 1, adding equivalent deionized water, extracting subcritical water at 120-150 DEG C under a pressure of 5-8 MPa for 10-15 min, finishing extraction, relieving pressure, and collecting extract; 3) filtration: filtering the extract obtained in the step 2 through 0.45 [mu]m, sealing and storing to obtain the aphrodisiac.

The invention discloses a feed additive for sows at an early pregnancy period. The feed additive is prepared by a preparation method comprising the following steps of (1) treating raw materials: removing fine hair on the surfaces of fresh immature fructus momordicae and falling fructus momordicae; (2) performing subcritical water extraction: smashing the raw materials obtained in the step (1), adding deionized water of which the weight is the same as that of the raw materials, performing subcritical water extraction, wherein the extraction temperature is 120-160 DEG C, the pressure is 5-8MPa,and the extraction time is 10-15min, when extraction is completed, performing pressure relief, and collecting extract liquid; and (3) performing concentration: concentrating the extract liquid obtained in the step (2) to thick paste of which the relative density is 1.10-1.15 at 70 DEG C, so that the feed additive is obtained.

The invention discloses an estrualization method for a sow in a mating period. The estrualization method is performed according to the following steps: 1) cleaning the body surface and vagina of the sow by using 49-51 DEG C warm water at 9:00-10:00 in the morning every day, wiping the body surface and vagina of the sow after cleaning, and inputting 30-40mL of aphrodisiac used by the sow in the mating period into the uterus of the sow by using an inseminating syringe every day; and 2) feeding, namely carrying out small group captivity, feeding each sow with an early pregnancy material three times every day according to the feeding quantity of 1.6-1.8kg, wherein the material fed at 10:00-11:00 accounts for 1/2 of total feed amount per day, the material fed at 17:00-18:00 accounts for 1/3 oftotal feed amount per day, and the material fed at 21:00-22:00 accounts for 1/6 of total feed amount per day.

The invention provides an experimental device for extracting luteoloside from plants. The experimental device comprises an extraction tank body, a liquid collection tank, a blocking part, a material tank and a rotating shaft, the bottom of the extraction tank body can form heating, and the top can form refrigeration; the liquid collecting tank is arranged on the inner wall of the extraction tank body; a material inlet is formed in one side of the liquid collecting tank; the blocking component comprises an annular baffle and a conical apron board, a plurality of drainage pipes radiating outwards are arranged on the peripheral side of the annular baffle, and one end of each drainage pipe is communicated with the liquid collecting tank; the material tank is rotatably arranged on the annular baffle, and a plurality of filter holes are formed in the side wall of the material tank; the other end of each drainage pipe is arranged on the upper side of the material tank; one end of the rotating shaft is fixedly connected with the material groove, and the other end penetrates out of the extraction tank body and is connected with the driving part; the driving part can drive the rotating shaft to rotate. The device can realize continuous extraction and improve the extraction efficiency.

The invention provides a method for extracting kolavenic acid from polyalthia longifolia var.prndulla R.Br. The method comprises the following steps of crushing root barks of polyalthia longifolia var.prndulla R.Br., feeding into an extraction kettle, introducing CO2 in a supercritical state and extracting to obtain an oily extract, extracting the extract by using diethyl ether for multiple times, concentrating the obtained extract liquor to obtain diethyl ether extract, adding the diethyl ether extract into a magnesium oxide column for chromatography, performing gradient elution by using normal hexane and diethyl ether, performing rotary evaporation on eluent to concentrate, drying to obtain a kolavenic acid crude product, and separating by preparative high performance liquid chromatography to obtain the kolavenic acid. The process is simple, the yield is high, and a product is high in quality and purity.

The invention belongs to the technical field of laboratory preparation of needle coke and particularly relates to a laboratory extraction method for preparing a colloid blended component of needle coke. The method comprises the steps of carrying out supercritical extraction on petroleum asphalt in a supercritical state by virtue of low carbon aliphatic hydrocarbon so as to separate a saturated component, an aromatic component and raffinate in the petroleum asphalt, extracting the supercritically extracted raffinate by virtue of a colloid solvent (a non-protonic solvent with medium polarity), and separating raffinate asphaltene so as to obtain a colloid component as a needle coke production raw material, namely the blended component, wherein the mass content of the separated colloid can reach over 92% and even 95%. According to the method, the effective separation of the saturated component, the aromatic component and the asphaltene in the petroleum asphalt is realized, and the colloidas the needle coke production raw material, namely the blended component is extracted. The feasibility of the process for extracting the colloid from the petroleum asphalt is technologically proved, and a reliable raw material source is provided for the further fine separation of the colloid.