CN101665540A - Modern processing technique of legume starch - Google Patents

Abstract

A modern processing technique of legume starch belongs to the technical field of deep processing of agricultural and sideline products. Legume starch is fast produced by steps of acid starch culturing, legume soaking, sieving, washing and grinding, crude filtering and depositing, fine filtering and separating, dehydrating, drying and the like; the technique gets rid of the stale and brings forth the fresh, simultaneously preserves the essence of traditional technique of acid starch depositing method and adopts starch refinery technique of modern rotational flow separating method, combines theabove two artfully, and brings out the best of each other; and the whole production process, therefore, realizes mechanized and automated continuous production, and the quality of the products is obviously enhanced in comparison with the traditional techniques.

Description

Modern processing technique of legume starch

One, affiliated technical field

The invention belongs to agricultural byproducts deep process technology field, is a kind of method of modernization processing legume starch.

Two, technical background

According to the history records record, legume starch and bean vermicelli production are in existing more than the 300 year history of China, and the centuries, " the wintercherry precipitator method " are all adopted in legume starch production, and the wintercherry of turning out with the powder water by fermentation is degraded albumen gradually, and then precipitates and isolates starch.Its advantage is to have kept a small amount of vegetable jelly and albumen in starch preferably, makes legume starch have the characteristic that other industrial starch does not have, and extensively get consumer reception with various goods such as the starch of legume starch making, cool skin, beans vermicelli, but shortcoming is:

1, must be through a series of numerous and diverse treating processess such as separation, precipitation, stirring, redeposition, required time is very long, can only be interrupted production, can't work continuously;

2, precipitation has been when having finished powder, must artificial meticulous operation, so from not a large amount of watts of cylinders and manually, be difficult to realize mechanize and automatization, can only workshop-basedly produce;

3, the isolated starch pH of wintercherry precipitator method value is 4.5, and acidity is higher, because the acidification of long period, viscosity also is under some influence.

The someone had invented legume starch " the lixiviate precipitator method " in recent years, referring to No. 031349218 patent " beans comprehensive utilization process ", though this method has the effect of rapid extraction legume starch, can be mass-produced, but vegetable jelly that beans is contained and albumen are removed totally, become purified industrial starch, be unfavorable for making food such as bean vermicelli, bean sheet jelly, bean jelly.

Based on abundant understanding and analysis to above-mentioned two kinds of working method relative merits, in conjunction with self practical experience, " modern processing technique of legume starch " invented by our company, this technology had both made the elite in the traditional technology partly be kept, the refining means of modern starch are applied in traditional industries, when effectively improving the legume starch quality, paved road for legume starch moves towards large-scale industrial production from workshop-based production, believed that this technology has promoter action to promoting technical progress of industry.

Three, summary of the invention

Purpose of the present invention just provide a kind of can the rapid extraction legume starch, can keep and improve the modernized complete processing of legume starch fine quality again, make legume starch realize industrialized production.

The objective of the invention is to realize that by such technical scheme it may further comprise the steps:

(1) wintercherry is cultivated, and adopts traditional " the wintercherry precipitator method " technology, by 7-10 days spontaneous fermentation of powder slurry, turns out all good ripe wintercherrys of color, smell and taste, then according to the needs of turnout, covers enough new cadmium yellow slurries every day, and the lasting wintercherry of cultivating is standby;

(2) beans is soaked, with the pea after the removal of impurities, mung bean or broad bean, by dried bean curd weigh 1: 2.5～3 material-water ratio adds clear water and soaks, and ends to the abundant water-swelling of described beans, changes water in the immersion process 3 times, sprayed into pressurized air 1 time 5 minutes every 12 hours from the fermentation vat bottom, to stir beans, distribute heat soaks evenly, immersion finishes, and venting soaks water;

(3) sieve and wash defibrination, soaked described beans make-up water pump is delivered to the yawing sieve, water spray is sieved and washed, remove remaining silt, send into the pulverizer hopper through vibratory feeder and chapelet or helical screw feeder, inject wintercherry and clear water simultaneously in hopper, beans are with wintercherry and clear water inflow pulverizer defibrination, wintercherry consumption and dried bean curd heavy phase etc., clear water consumption are heavy 3 times of dried bean curd;

(4) coarse filtration precipitation, powder slurry behind the mill sieves 70 eye mesh screens through circular drum and removes by filter thick slag, be pumped to several small-sized settling tanks that are linked to be a row, staticly settle after settling tank stirs 15 minutes, protein milk separates with the powder slurry after 8 minutes, and the Huang slurry on top is protein milk, the bottom is milky to be starch milk, discharge protein milk by discharge pipe, deal with in addition by purposes, the bottom starch milk enters down operation;

(5) fine filtering separates, the bottom starch milk is pumped to the circular drum sieve by settling tank prime cement pipe, remove by filter thin slag through 120 eye mesh screens, being pumped to cyclone separator adds clear water and washs separation step by step, getting quality is the starch slurry of 13 degree Beaume than concentration, isolated supernatant enters purification tank for liquid waste and handles the back discharging, and starch slurry enters down operation;

(6) dehydrate, Pump for handling starch thick liquid after the separation is delivered to 3-foot automatic discharge centrifuge or vacuum hydroextractor continuously dehydrating, quality is 38% wet starch than water content, wet starch is directly sent into pneumatic drier through helical screw feeder, be dried to quality and be 12% dry starch than water content, cooling back quantitative package warehouse-in, 150～160 ℃ of dryer entrance mouth temperature, 70～80 ℃ of air outlet temperature;

If starch is used to make bean vermicelli, the wet starch after then directly will dewatering with chapelet or helical screw feeder is sent to bean vermicelli workshop hopper, need not be dry.

Owing to adopted technique scheme, the present invention to have following advantage:

1, production whole process is from being dosed into the finished product output, and full mechanization, automatic continuous production floor space are little, and producers are few, and the production time is short, is not subjected to region, weather effect, the big production of suitability for industrialized;

2, quality product is better.Owing to kept the elite part in the traditional technology " the wintercherry precipitator method ", the distinctive quality of legume starch is kept, again owing to adopted " cyclonic separation method " this modern starch to make with extra care means, the legume starch quality is improved both ways: the one, the pH value has been brought up to more than 6.0 by traditional 4.5, make legume starch reach the standard of the human body optimum pH 5.2～6.4 of World Health Organization's issue for the first time, solved the problem of legume starch goods peracid for a long time; The 2nd, the viscosity of legume starch strengthens, and the finished product quality further improves, and the pH value of starch is 6.0 when above, viscosity is the strongest, and traditional legume starch is through the lengthy fermentation precipitation, and the pH value reduces to 4.5, viscosity reduces naturally, so traditional legume starch is not as good as this handicraft product.

3, stable yield improves.Stirring precipitation repeatedly under the acidic conditions for a long time, it is soluble in water that partial starch progressively is degraded to carbohydrate, can't reclaim, must influence output, the refining fast legume starch of this process using cyclonic separation method has prevented the degraded of starch, thereby has guaranteed the stable yield raising.

4, less investment, the output height, good in economic efficiency.Because this production line entire mechanization, automatization, but continuous production, a production line can be worked as three production lines and be used, so less investment, amount of finish is big, and the output height is good in economic efficiency.With 9000 tons of year processing peas, produce the production line meter of 3600 tons of pea starches, fixed capital inputs such as plant and equipment only need 5,000,000 yuan, 3,240 ten thousand yuan of annual value of production, 7,200,000 yuan of profits.

Four, embodiment

Legume starch is the same with other Starch Production, water is more, the ground that should select water supply and sewage and have a good transport service, found the factory by Production Flow Chart and technical requirements design, and necessary auxiliary construction waste water disposal facility, preferably auxiliary construction auxiliary product such as vegetable-protein recycle facility, to turn waste into wealth, improve overall economic efficiency.

Industrial scale is decided on the investment ability and the market development capability, but for the performance advantage of scale, makes full use of capacity of equipment, and annual production should be suitably big.As previously mentioned, if need to build the production line of 9000 tons of year processing peas, need factory building 2000m ², fixed capital such as factory building, equipment drop into 5,000,000 yuan, produce 3600 tons of legume starchs per year, 3,240 ten thousand yuan of sales revenue, 7,200,000 yuan of profits.

Production line construction debugging finishes, and can produce by step and processing requirement that the present invention determines:

(1) wintercherry is cultivated, and adopts traditional " the wintercherry precipitator method " technology, by 7-10 days spontaneous fermentation of powder slurry, turns out all good ripe wintercherrys of color, smell and taste, then according to the needs of turnout, covers enough new cadmium yellow slurries every day, and the lasting wintercherry of cultivating is standby;

(2) beans is soaked, with the pea after the removal of impurities, mung bean or broad bean, by dried bean curd weigh 1: 2.5～3 material-water ratio adds clear water and soaks, and ends to the abundant water-swelling of described beans, changes water in the immersion process 3 times, sprayed into pressurized air 1 time 5 minutes every 12 hours from the fermentation vat bottom, to stir beans, distribute heat soaks evenly, immersion finishes, and venting soaks water;

(3) sieve and wash defibrination, soaked described beans make-up water pump is delivered to the yawing sieve, water spray is sieved and washed, remove remaining silt, send into the pulverizer hopper through vibratory feeder and chapelet or helical screw feeder, inject wintercherry and clear water simultaneously in hopper, beans are with wintercherry and clear water inflow pulverizer defibrination, wintercherry consumption and dried bean curd heavy phase etc., clear water consumption are heavy 3 times of dried bean curd;

(4) coarse filtration precipitation, powder slurry behind the mill sieves 70 eye mesh screens through circular drum and removes by filter thick slag, be pumped to several small-sized settling tanks that are linked to be a row, staticly settle after settling tank stirs 15 minutes, protein milk separates with the powder slurry after 8 minutes, and the Huang slurry on top is protein milk, the bottom is milky to be starch milk, discharge protein milk by discharge pipe, deal with in addition by purposes, the bottom starch milk enters down operation;

(5) fine filtering separates, the bottom starch milk is pumped to the circular drum sieve by settling tank prime cement pipe, remove by filter thin slag through 120 eye mesh screens, being pumped to cyclone separator adds clear water and washs separation step by step, getting quality is the starch slurry of 13 degree Beaume than concentration, isolated supernatant enters purification tank for liquid waste and handles the back discharging, and starch slurry enters down operation;

(6) dehydrate, Pump for handling starch thick liquid after the separation is delivered to 3-foot automatic discharge centrifuge or vacuum hydroextractor continuously dehydrating, quality is 38% wet starch than water content, wet starch is directly sent into pneumatic drier through helical screw feeder, be dried to quality and be 12% dry starch than water content, cooling back quantitative package warehouse-in, 150～160 ℃ of dryer entrance mouth temperature, 70～80 ℃ of air outlet temperature;

If starch is used to make bean vermicelli, the wet starch after then directly will dewatering with chapelet or helical screw feeder is sent to bean vermicelli workshop hopper, need not be dry.

Claims (1)

1, modern processing technique of legume starch is characterized in that comprising following step:

(1) wintercherry is cultivated, and adopts traditional " the wintercherry precipitator method " technology, by 7-10 days spontaneous fermentation of powder slurry, turns out all good ripe wintercherrys of color, smell and taste, then according to the needs of turnout, covers enough new cadmium yellow slurries every day, and the lasting wintercherry of cultivating is standby;

(2) beans is soaked, with the pea after the removal of impurities, mung bean or broad bean, by dried bean curd weigh 1: 2.5～3 material-water ratio adds clear water and soaks, and ends to the abundant water-swelling of described beans, changes water in the immersion process 3 times, sprayed into pressurized air 1 time 5 minutes every 12 hours from the fermentation vat bottom, to stir beans, distribute heat soaks evenly, immersion finishes, and venting soaks water;

(3) sieve and wash defibrination, soaked described beans make-up water pump is delivered to the yawing sieve, water spray is sieved and washed, remove remaining silt, send into the pulverizer hopper through vibratory feeder and chapelet or helical screw feeder, inject wintercherry and clear water simultaneously in hopper, beans are with wintercherry and clear water inflow pulverizer defibrination, wintercherry consumption and dried bean curd heavy phase etc., clear water consumption are heavy 3 times of dried bean curd;

(4) coarse filtration precipitation, powder slurry behind the mill sieves 70 eye mesh screens through circular drum and removes by filter thick slag, be pumped to several small-sized settling tanks that are linked to be a row, staticly settle after settling tank stirs 15 minutes, protein milk separates with the powder slurry after 8 minutes, and the Huang slurry on top is protein milk, the bottom is milky to be starch milk, discharge protein milk by discharge pipe, deal with in addition by purposes, the bottom starch milk enters down operation;

(5) fine filtering separates, the bottom starch milk is pumped to the circular drum sieve by settling tank prime cement pipe, remove by filter thin slag through 120 eye mesh screens, being pumped to cyclone separator adds clear water and washs separation step by step, getting quality is the starch slurry of 13 degree Beaume than concentration, isolated supernatant enters purification tank for liquid waste and handles the back discharging, and starch slurry enters down operation;

(6) dehydrate, Pump for handling starch thick liquid after the separation is delivered to 3-foot automatic discharge centrifuge or vacuum hydroextractor continuously dehydrating, quality is 38% wet starch than water content, wet starch is directly sent into pneumatic drier through helical screw feeder, be dried to quality and be 12% dry starch than water content, cooling back quantitative package warehouse-in, 150～160 ℃ of dryer entrance mouth temperature, 70～80 ℃ of air outlet temperature;

If starch is used to make bean vermicelli, the wet starch after then directly will dewatering with chapelet or helical screw feeder is sent to bean vermicelli workshop hopper, need not be dry.