CN101648999B - Method for separating pueraria starch milk impurities - Google Patents
Method for separating pueraria starch milk impurities Download PDFInfo
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Abstract
The invention relates to a method for separating pueraria starch milk impurities. The invention discloses a separating agent prepared from edible natural plant extracts, the pueraria starch milk is disturbed to precipitate starch grains within a certain period of time, and impurities including silts and the like in the pueraria starch milk are once thoroughly eliminated by a physical method. The method is used for solving the problems of difficult cleaning of coarse and uneven pueraria epidermis, peeling loss of pueraria flavone mainly reserved at the skin part and resource waste of mechanically damaged broken rootstalks. The method keeps epidermis processing, and has simple process, easy implementation, no pollution and high processing efficiency, and is widely suitable for the large-scale production of starch of underground tuber crops including pueraria and the like in small and medium enterprises to achieve the purpose of preparing pure natural green foods.
Description
Technical field
The present invention relates to a kind of agricultural byproducts processing technical field, a kind of specifically with the method for plant extraction liquid as the separating agent separating pueraria starch milk impurities, being adapted to the root of kudzu vine is that feed purification goes out the pueraria starch product.
Background technology
The perennial liana leguminous plants of Pueraria lobota (Pueraria DC), self-sow are distributed in the wide mountain area, hills of China, aboundresources in famine mountain range outside of the city.With the root of kudzu vine is the pueraria starch that raw material extracts, and is rich in multiple amino acids, VITAMIN, Pueraria lobota polysaccharide and the mineral nutrient element of needed by human.As pollution-free green food, be the famous local and special products of China since ancient times always, favored by the domestic and international market, health ministry is listed the root of kudzu vine in the list of " be medicine be again food " in March, 2002.
At present, pueraria starch production subject matter is in very irregular, concavo-convex rough surface processing and the separation to pueraria starch milk impurities to growth.The domestic traditional diamond-making technique of usefulness and the suite of equipment used of suitability for industrialized production in recent years of prolonging so far, its main production process is that raw material cleans, the rasion peeling, and require the peeling rate to reach more than 80%, cause be rich in the root skin human body Radix Puerariae flavone material damage with health role serious; During the cleaning raw material, damaged stem tuber is because of being difficult to washing, and that abandons is more, and the wasting of resources is very big; Processing to Pueraria lobota serum impurity utilizes multiple working procedures such as sand cleaning machine, and is time-consuming, the tooling cost height, and quality product is difficult to guarantee.
Summary of the invention
The objective of the invention is to provide a kind of novel method of processing pueraria starch, be intended to use this technological improvement production technique, with the output capacity of raising pueraria starch and the storage rate of production efficiency and Radix Puerariae flavone.Its product quality meets the physical and chemical index and the sanitary index of national high-quality starch, reaches the foreign export product requirement.Simultaneously, production cost reduces, and the wasting of resources reduces.
The present invention is achieved in that the material cleaning, peeling, the washing three process that improve in the present industrialization clustered aggregates technological process of production are one flushing; Improve isolating twice size degradation of starch (broken, defibrination), twice screening is a size degradation and sieves that the disposable primary phlegmatic temperament of natural plant of adding solves the impurity separation in serum with mechanical desanding and isolated protein, to reduce processing sequence, improve starch and Radix Puerariae flavone recovery rate.This invention is compared with traditional prior art, and the technology that provides is:
Traditional technology:
The root of kudzu vine → cleaning (rossing) → cut-out → size degradation → screening (removing robust fibre) → Pueraria lobota serum (crossing the elimination fine-fibered) → precipitation (removing yellow slurry) → rinsing → precipitation (removing upper strata aleurone layer, lower floor's silt) → smart starch → drying → finished product
Existing industrialization clustered aggregates production technique:
The root of kudzu vine → classification (removal fragment) → cleaning (cleaning machine) → size degradation → defibrination → screenings roughing out (bent sieve removes robust fibre) → powder is starched desanding (sand cleaning machine removes silt) → starch milk segmentation and is separated (disk plate centrifuge removes yellow slurry) → concentrated (scraper type whizzer or nozzle-type whizzer) → wet starch → drying → finished product from (vertical centrifugal machine removes thin slag) → juice
The novel process that the present invention provides:
The root of kudzu vine → flushing → size degradation (removing robust fibre) → screening (centrifugal screen removes fine-fibered) → juice separates (wet cyclone removes the Huang slurry) → starch milk and purifies (add plant extraction liquid and remove silt) → concentrated (scraper type whizzer) → wet starch → drying → finished product
Root of kudzu vine growth irregular and excavate storing physical abuse is arranged unavoidably.Current technology is rejected the fragment procedure that is absolutely necessary to raw material before processing.Add a large amount of waters in man-hour, root skin silt is removed in friction repeatedly, has so not only caused the waste of losing of damaged rhizome, also makes the raw material section not stop to rotate under the mutual bump at washing machine, causes losing with current of section starch small grain.The method that the present invention provides is that the root of kudzu vine is unearthed, as long as fresh not rotting, damaged fragment all can be in order to processing.Only need water to wash out the bulk walk of epidermis, need not remove the peel, can directly enter the disintegrator size degradation.It is purpose that size degradation discharges starch with destruction root of kudzu vine cell, and destructiveness is bigger, and flour extraction rate is higher.Require degree of fragmentation more than 90%.Disintegrator is selected for use simple in structure, the broken apart dual-purpose machine of universal potato class, and its working condition can be matched type according to amount of finish.Integrate size degradation with sieve, the ingress is tooth-like cylinder, the bottom is provided with brush mesh screen, in into water flushing arrangement is housed.During machine work, the root of kudzu vine and water are gone into machine simultaneously, and the screenings behind the size degradation, can separate robust fibre through 80 order mesh screens in machine than dilution in 1: 6 through water distribution.Serum directly enters the centrifugal screen that 120 order mesh screens are housed and isolates fine-fibered.For making finished product starch of good quality, the tawny Pueraria lobota serum of separating enters wet cyclone under by 0.45-0.60MPa pressure and sloughs yellow slurry.Because of bright root does not pass through washing, the wet starch of sloughing yellow slurry contains silt, granulometric impurities such as root skin.For disposable purification starch milk, isolate the granulometric impurity that has in the serum, press impurity and starch different specific weight in water, utilize the gravity settling separation principle, wet starch is diluted towards water distribution at 1: 8.Flow in the pipe (groove) in settling vessel or hydrops pond at serum, be blended into impurity separating agent hindered falling in proportion, sharp separation goes out impurity in certain hour, is higher than 99.8% pueraria starch milk thereby obtain purity.Separating agent is made with natural phant.
Fern, per nnial herb is the time-honored ancient vegetables of China, and China is except that the desert area of northwest, and all there is distribution various places.Often be born under moistening the mountain forest hillside fields or scrub growth, plant height 30-90cm, the normal tool rust of root stock tan-colared hairs, individual plant 3-7 leafage gives birth to, oval shape lanceolar, two times pinnation, the close living brown sporocyst of blade back.Its tender stem just can be produced expensive outlet dried vegetable through processing.Contain various trace elements and protein, phlegmatic temperament, pectin and Flavonoid substances in the rhizome, the medicinal efficacy that tool is clearing heat and detoxicating, dissolving stasis and hemostasis.Has " ill curing the disease, anosis diseases prevention " good reputation.
Mucus that the fern rhizome contains (mucilage) and pectin substance are a kind of no specified shape viscous liquids, and very strong wetting ability is arranged.Filtering the extracting solution of producing through making beating combines with the soft film of the Pueraria lobota serum starch small grain distinctive thin layer in surface, adsorbed very soon by starch molecule, make between the starch molecule that flocks together in the solution and isolate mutually, short period of time starch small grain promptly occurs and be single even loosing in solution, thereby collide the retrogradation chance between the minimizing starch molecule mutually, prolong the starch suspension time.Work as completion of processing, the Pueraria lobota serum is when settling vessel or collecting tank are static, because the interpolation of extracting solution, starch is different with impurity proportion, starch promptly occurs and be breast and melt shape and suspend, and impurity such as silt do not have the cement film because of the extracellular, can not combine with the extracting solution plastic mass, and sink rapidly by the starch intergranular pore, occur separating.Water temperature is below 15 ℃, in 20 minutes, it is stable that defiber reaches, and at this moment can know by the transparent observing pipe that is contained in the settling vessel outside and look the layering position of seeing oyster white starch slurry and brown contamination precipitation, in time will be installed in settling vessel lower taper vertex (vertices) end valve door and open reject impurity.Also available suction journey pump extracting top starch slurry.Be to guarantee starch clarity 100%, under using impurities removal matter or on when putting forward starch milk two methods, must keep apart from defiber up and down 10 centimetres of left and right sides liquid layers transmissions come off duty and work continuously or separate separately.
The pure matter starch milk that discharging or extracting go out directly enters the scraper type whizzer and concentrates, and moisture content is reduced to below 40% just can enter drying program.(small-sized starch factory can directly insert the pond with extract, removes supernatant liquor and get caking wet starch airing or go into kiln after staticly settling in 20 hours).Drying is selected the air-flow hot air dryer for use, and hot blast temperature is controlled at 135-150 ℃.Wet starch moisture under hot air acting spreads out of fast, and the temperature of starch small grain can be too not high, and dry required time is short, and it is rotten to guarantee that degraded does not take place starch.
Embodiment
It is as follows to extract its step of pueraria starch:
1. raw material arrangement: the bright root of kudzu vine should will go mouldy, rot before processing, inclusion removals such as Pueraria lobota neck nose, whipping, and processing in 72 hours in time becomes with the bright head mold that prevents from room temperature to preserve, and starch is converted into sugar, influences the recovery of starch rate.
2. flushing:, need water adherent silt of flushing root of kudzu vine epidermis and moistening material for reducing wearing and tearing to size degradation machinery.According to different wash machine, the service sinks selected for use of turnout with level of automation.The root of kudzu vine passes through conveying belt upward pressure water spray irrigation, the epidermis walk is shot down be advisable.
3. size degradation: size degradation makes cell rupture to destroy the weave construction of the root of kudzu vine, and small starch small grain can successfully disintegrate from root of kudzu vine stem tuber, separate, and promptly the material degree of fragmentation is high more good more.Select multi-functional potato class separating machine for use, linear velocity 38 meter per seconds are better than high-power hammer leaf machine.Potato pulverizer a tractor serves several purposes, screenings is located away from one.The broken position of the root of kudzu vine is tooth-like roll, under the roll water inlet pipe is housed, and the contained a large amount of fibre materials in broken back are given water distribution in 1: 6 ratio and washed away dilution, are sent to screen cloth through the underpart auger, separates with the Pueraria lobota serum when being about to robust fibre, and the slave end is discharged respectively.The root of kudzu vine high to starch content, Pueraria lobota serum concentration height be to increase separating effect, can improve supply water in the machine than or thick slag secondary go into machine and supply water simultaneously and dash filter.Broken degree is influenced by blade tooth height, engine speed directly.Require the wild root of kudzu vine (crude fiber content height) roll dewclaw tooth depth 1.2-1.5mm, the space width 10mm of rounded projections arranged; The RADIX PUERARIAE of plantation is with universal processing potato class cylinder, i.e. tooth depth 0.8-1mm, space width 8mm.Mesh screen adapted 80 order metallic screens in the machine are to improve serviceability ratio.
4. fine screen: directly import the centrifugal screen that 120 order mesh screens are housed through the Pueraria lobota serum that pulverizer is just filtered, isolate the thin matter fiber under the above-mentioned 80 order machine sievings.
5. juice separates: the Pueraria lobota serum after the fine screen enters wet cyclone and isolates the yellow slurry of the root of kudzu vine (proteinaceous seitan water).
6. purify and dehydration: slough the wet starch of yellow slurry through wet cyclone, because of matting without peeling, washing, have certain root skin silt particulate.Be equipped with 1: 8 heavy clear water of wet starch, work continuously after the dilution, in serum, add fern rhizome extracting solution and make separating agent, utilize settling vessel that starch is separated with impurity.
Produce the fern root that separating agent is taken, its tender stem processing can be made into the edible perennial plant of dried vegetable.Choose bright rhizome, remove withered corruption aging end, epidermis rust tan-colared hairs, keep new petiole 1-2cm, brush is silt to the greatest extent, goes into crusher or be hammered into gruel, weighs 1: 20 by bright rhizome and be equipped with the dilution of PH6.5-7.5 water, crossing 120 order mesh screens removes slag, produce out thick rhizome extracting solution, splendid attire is in stainless steel or mould firmly in the bucket, puts to cover light under the 2-15 ℃ of room temperature and store.Its storage phase is no more than 48 hours.For accomplishing bright rhizome ready access upon use, can heel in wet sand taking rhizome in the hill.
Settling vessel is the right cylinder jar of the band awl end (90 °-95 ° of cone angles), diameter 1.5m, and high 2-2.5m, its big I is made according to turnout.The sidewall of settling vessel is equipped with and connects the transparent observing pipe of going up lower tank, and opposite side is highly installed a discharge opeing gate valve end of apart from every 50cm.
For prevent that the Pueraria lobota serum from precipitating before purification, in above-mentioned technology whizzer work, serum is discharged into the port in settling vessel or hydrops pond, in Pueraria lobota serum per ton (degree Beaume is between 7-8) 2000ml ratio input separating agent.Because raw starch content difference, the separating agent consumption increases and decreases according to serum concentration.According to above consumption, degree Beaume is more than 8, every rising one degree Beaume, and serum per ton increases 160ml, and degree Beaume is below 7, every minimizing one degree Beaume, per ton subtracting used separating agent 100ml.Pueraria lobota serum peak concentration should be controlled within 10 degree Beaume.Surpassing 10 degree Beaume then must dilute with water.Separating agent adds and should carry out in processing phase beginning, mainly makes it even loosing in the Pueraria lobota serum, prevents that serum precipitates in settling vessel in the processing way.
Completion of processing when the Pueraria lobota serum is static in settling vessel, is visually to see that the oyster white starch fluid obviously separates with silt impurity in 2 minutes by observation tube.To be that pure starch is outstanding melt liquid on top, and the bottom is insoluble hide fiber and silt impurity.15-20 minute, it is stable that defiber reaches, and sedimentation finishes, and the pure matter starch milk in top can be discharged from settling vessel one side gate valve, and its impurity gushes from bottom awl vertex (vertices) end.The starch milk purity of discharging reaches more than 99.8%.Can promptly obtain water content about 85% wet starch that lumps through 24 hours precipitation venting supernatant liquors if be discharged into the hydrops pond.For with the starch milk fast dewatering, when settling vessel is opened a sluice gate milk ejection, directly enter vacuum suction filter or 1200 rev/mins of scraper type whizzers, by operation, can in 2 minutes, obtain water content and be lower than 40% wet starch.
7. dry: wet starch is sent drying plant to and is carried out drying, should use the air-flow hot air dryer, and hot blast temperature is controlled at 135 ℃-150 ℃.If use kiln, dry need segmentation carrying out, the beginning temperature is controlled at 55 ℃-60 ℃, is warmed up to 65 ℃-70 ℃ after 20 hours, through dehydration in 3.5-4 hour, can pack warehouse-in after the cooling.Dried pueraria starch is pure white, and water content is less than 13%, and cleanliness reaches more than 99.8%.
Claims (4)
1. the method for a separating pueraria starch milk impurities is characterized in that:
The cleaning of A, the root of kudzu vine and flushing: choose the dead leaf phase and excavate the bright root that does not go rotten, remove fibrous root, Pueraria lobota neck nose clip foreign material, flushing epidermis silt also moistening material 10-12 minute;
B, size degradation: with root of kudzu vine fragmentation, degree of crushing is more than 90% with disintegrator;
C, screening: press the raw material water distribution than 1: 6, with size degradation separate the centrifugal screen of Pueraria lobota serum by 120 order mesh screens are housed behind the robust fibre by centrifugal force screening remove the thin matter fiber of the root of kudzu vine;
D, juice separate: the tawny serum after the screening enters wet cyclone by 0.45-0.60MPa pressure and isolates proteinaceous yellow slurry, and wet starch is equipped with 1: 8 water dilution;
E, preparation separating agent: select the bright rhizome of fern for use, preserve behind the defoliation in wet sand, clean during application, size degradation, separated fiber makes separating agent;
F, Pueraria lobota serum purify: the wet starch of sloughing yellow slurry must be finished the impurity separation in 48 hours, to prevent the serum fermentation, wet starch is diluted with water to starch serum below 10 degree Beaume, the ratio that adds the 2000ml separating agent in the starch serum of degree Beaume per ton between 7-8, according to serum concentration, degree Beaume is more than 8, every rising 1 degree Beaume, and serum separating agent consumption per ton increases 160ml; Degree Beaume is below 7, and per ton the subtracting of every minimizing 1 degree Beaume used separating agent 100ml, and the Pueraria lobota serum surpasses 10 degree Beaume then needs dilute with water, is blended into after the separating agent Pueraria lobota serum and promptly enters starch milk and suspend, and contamination precipitation is finished impurity and separated in 20 minutes;
G, dehydration: separate the pure matter starch milk draw and concentrate, dewater to water content and select vacuum suction filter or scraper type whizzer below 40% for use through machinery;
H, drying.
2. according to the method for claims 1 described a kind of separating pueraria starch milk impurities, it is characterized in that the preparation of separating agent; Get the bright rhizome of fern, remove the tail end and the epidermis rust tan-colared hairs of aging withered corruption, keep bright petiole 1-2 centimetre, scrub silt, size degradation one-tenth is rotten, and with the dilution of PH6.5-7.5 water, water distribution is than being heavy 1: 20 of bright root, get the screening of 120 order mesh screens and remove fiber, the Pueraria lobota serum impurity separating agent that makes is put stainless steel or is moulded in the system reservoir, and 10 ℃-15 ℃ cover light storage and are no more than 36 hours, reserve temperature is 48 hours for 5 ℃-10 ℃, is no more than 60 hours below 5 ℃.
3. according to the method for claims 1 described a kind of separating pueraria starch milk impurities, it is characterized in that the separating agent application program is: begin to flow in the stream pipe in settling vessel or hydrops pond at serum, by using total amount, disposable or progressively in flow liquid, be blended into, to prevent starch and contamination precipitation, the Pueraria lobota serum is being transported to back 2 minutes of the whole stream of hydrops container, just can be observed starch separates with impurity, impurity sedimentation in 15-20 minute finishes, it is stable that defiber reaches, the pure matter starch milk in top gushes with the pump extracting or through the discharge opeing lock, and bottom Gen Pi particulate and silt impurity are removed by the bottom valve discharging; Be to keep the starch milk purity, when pump drainage starch milk or impurity, should keep defiber up and down each 5cm will not arrange only, can prolong and pass down order of classes or grades at school and work continuously or discharge independent separation.
4. according to the method for claims 1 described a kind of separating pueraria starch milk impurities, it is characterized in that the wet starch drying, starch milk is sent drying plant by the concentrated aqueous amount of machinery at the wet starch below 40% and is carried out drying, for fulfiling assignment at short notice, select pneumatic drier for use, and with the source of hotblast stove as the air stream drying hot blast, temperature is controlled at 135 ℃-150 ℃; If use kiln drying, temperature to be controlled at 55 ℃-60 ℃ in earlier stage, temperature rises to 65 ℃-70 ℃ after 20 hours, can finish through the drying of 3.5-4 hour starch, and its water content is less than 13%.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952196A (en) * | 2012-10-19 | 2013-03-06 | 陈朝华 | Washing-free pueraria starch processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102161705A (en) * | 2011-05-27 | 2011-08-24 | 沁源县博翔新能源科技发展有限公司 | Method for extracting starch from crop straws |
| CN103755818B (en) * | 2013-12-26 | 2016-05-04 | 河南天豫薯业股份有限公司 | A kind of starch from sweet potato removal of impurities production technology |
| CN104041771B (en) * | 2014-06-23 | 2016-05-18 | 曾世均 | A kind of processing method of root of kudzu vine comprehensive utilization |
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| CN1493695A (en) * | 2003-08-22 | 2004-05-05 | 李全宏 | Prcess of extracting kudzu vine root starch, kudiu vine root polysaccharide and kudzu vine root isoflavone from kudzu vine root synchronously |
| CN1563095A (en) * | 2004-03-17 | 2005-01-12 | 广东省农业科学院农业生物技术研究所 | Method for extracting starch containing high general flavone from kudzuvine root |
| CN101190949A (en) * | 2006-11-30 | 2008-06-04 | 贾启海 | Technique for extracting and preparing kudzu root and fern root starch |
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| CN1493695A (en) * | 2003-08-22 | 2004-05-05 | 李全宏 | Prcess of extracting kudzu vine root starch, kudiu vine root polysaccharide and kudzu vine root isoflavone from kudzu vine root synchronously |
| CN1563095A (en) * | 2004-03-17 | 2005-01-12 | 广东省农业科学院农业生物技术研究所 | Method for extracting starch containing high general flavone from kudzuvine root |
| CN101190949A (en) * | 2006-11-30 | 2008-06-04 | 贾启海 | Technique for extracting and preparing kudzu root and fern root starch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102952196A (en) * | 2012-10-19 | 2013-03-06 | 陈朝华 | Washing-free pueraria starch processing method |
| CN102952196B (en) * | 2012-10-19 | 2015-03-25 | 陈朝华 | Washing-free pueraria starch processing method |
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Assignee: ANHUI BAOHENG AGRICULTURE CO., LTD. Assignor: Wang Shengming Contract record no.: 2012320000671 Denomination of invention: Method for separating pueraria starch milk impurities Granted publication date: 20110511 License type: Exclusive License Open date: 20100217 Record date: 20120529 |