CN1042466A - The recovery method of albumen powder in the factory effluent of vermicelli - Google Patents
The recovery method of albumen powder in the factory effluent of vermicelli Download PDFInfo
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- CN1042466A CN1042466A CN 89107095 CN89107095A CN1042466A CN 1042466 A CN1042466 A CN 1042466A CN 89107095 CN89107095 CN 89107095 CN 89107095 A CN89107095 A CN 89107095A CN 1042466 A CN1042466 A CN 1042466A
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Abstract
The present invention is a kind of method of protein that reclaims from food industrial wastewater.
Basic technology of the present invention is the isoelectric precipitation → dehydration → heating → pulverizing → gas steaming → pulverizing → finished product packing of the waste water of bean vermicelli production.Use method of the present invention from the waste liquid that feeds intake of every 100kg production bean vermicelli, to reclaim albumen powder 10-12.5kg.Compared with the prior art the 30-80% that can reduce investment outlay, economize on electricity 90% economizes on coal 70%.
Description
The invention belongs to a kind of albumen recovery method of food industrial wastewater.
Before the present invention realized, amounts of protein was contained in its waste water in general bean vermicelli factory after producing bean vermicelli.This protein is one of chief component of animal feed, but these protein tend to be wasted, and has both wasted valuable feed protein resource, has polluted environment again.In order to address this problem, people have studied the whole bag of tricks and have reclaimed protein in this kind waste water, and are used.As biotransformation method, pneumatic separation method, coagulant sedimentation, filtration method, and with akin isoelectric point precipitation of the present invention etc.
Above-mentioned isoelectric point precipitation is the classical way that reclaims protein in the aqueous solution.Pakobcku ú 1982, river article HP with protein milk in 1981 transfer to isoelectric point PH4.00-5.25, and are heated to 60-100 ℃, make protein produce precipitation, again with the sediment centrifugal dehydration, carry out spray-drying at last.Owing to adopted centrifugal and the spray-drying operation, caused equipment investment bigger, and, energy consumption has been increased owing to need the heating protein milk.Therefore, the cost that reclaims albumen powder is higher, sell as forage protein, and be non-remunerative economically.After the PH with protein milk in 1987 of Yujiang County, Jiangxi Province bean vermicelli factory transfers to isoelectric point, be heated to 60 ℃ or do not heat,, and obtain meringue with simple and easy pressing filter box dehydration or bull ladle filtering means dehydration.This is owned by France in the technology of manual production, can save a large amount of energy, and small investment, the economic benefit height.But there are two problems in it, the one, and the production cycle is long, because meringue viscosity is big, be difficult for to continue dehydration, need Exposure to Sunlight just can pulverize after air-dry 4-5 days, meet winter or overcast and rainy drying is more difficult, Chang Yi causes mouldy corruption, even the meringue that will wet is dried and also needed a couple of days could be dry.The 2nd, because heating-up temperature is lower or do not heat, therefore can not eliminate trypsin ihhibitor, the urease that exists in the described albumen powder, hemagglutinin, injurious factors such as Escin, thus reduced the use value of albumen powder in animal feed.Therefore this method can not guarantee to produce in a large number continuously, can not guarantee the quality of albumen powder, is difficult to promote the use of.
Produce albumen powder and improve its rate of recovery for reclaiming continuously, improve the quality, reduce cost.Liu Fujin, once one above-mentioned protein milk isoelectric point heated after heavy fixed in equal 1988, dehydration, pulverizing, drying, make the forage protein powder.This kind method can mechanization reclaim production continuously, and saves manpower, has improved the rate of recovery and the quality of albumen powder really, but its shortcoming is to invest greatlyyer equally, and it is more to consume energy, and is difficult in the medium and small enterprise and comes into operation.
The method that the present invention is directed to above-mentioned isoelectric point precipitation recovery albumen powder is improved, thereby has overcome the problem that exists in the said method, has reached reduction equipment investment and energy consumption, guarantees the quality of forage protein powder, and shortens the purpose of production cycle.
Basic fundamental solution of the present invention is: the thin albumen slurry → accent PH of bean vermicelli factory is to isoelectric point, also can make described protein milk in the pond, make PH reduce to isoelectric point → precipitate → remove after the spontaneous fermentation supernatant → filter-press dehydration obtains wet meringue → Steam Heating → coarse crushing → Exposure to Sunlight or oven dry → fine powder is broken → finished product packing.
Basic fundamental solution of the present invention also can be: the thin albumen slurry → accent PH of bean vermicelli factory is to isoelectric point, also can make described protein milk in the pond, make after the spontaneous fermentation PH reduce to isoelectric point → precipitate → remove supernatant → bull ladle filtering means dehydration or centrifugal dehydration → protein concentrate sediment → Steam Heating → filter-press dehydration → coarse crushing → Exposure to Sunlight or oven dry → fine powder broken → finished product packing.Also can directly carry out pneumatic conveying drying → finished product packing after the coarse crushing.
Concrete solution of the present invention is:
Scheme 1, in bean vermicelli factory waste liquid-thin albumen slurry with the HCl solution of 1.5N, H that also can 1.0N
2SO
4Solution or 3-6%(percentage by weight) H
2SO
3Solution is regulated in PH to the 4.10-4.70 scope of described thin albumen slurry, be preferably PH4.30-4.50, stir while regulating, and leave standstill 6-17hour, generally be advisable with 8-10hour, and the supernatant of draining, the protein concentrate of bottom precipitation is starched in the filter bags of packing into, carry out press filtration with simple and easy filter press, the 6-12hour that dewaters under the pressure of 0.50-1.00Kg/cm is preferably 8hour, make wet meringue, with steam above-mentioned wet meringue is heated to 95-110 ℃ then, is preferably 100-105 ℃, and keep temperature 10-30min, be preferably 15-20min, if during described wet meringue thicker (more than 10cm), can prolong temperature hold-time, the longlyest can be 3hour, above-mentioned meringue through heat treated is lowered the temperature the back coarse crushing to graininess, and carry out Exposure to Sunlight or under 50-90 ℃ condition, dry 4-8hour, fine powder is broken to powder rice shape when the moisture content of described albumen powder particle reaches 8-12%, carries out the packing of product.
Scheme 2: precipitate → remove the supernatant → precipitation of bottom → protein concentrate slurry is packed in the filter bags by scheme 1 described method, carry out bull ladle then and filter or centrifuge dewatering, make the protein concentrate sediment, with being steam heated to 95-110 ℃; Be preferably 100-105 ℃, and maintenance temperature 10-30min, be preferably 15-20min, filter-press dehydration is carried out in the cooling back under the pressure of 0.5-1.00Kg/cm, coarse crushing is to graininess, and dries 4-8hour under Exposure to Sunlight or 50-90 ℃ of condition, and fine powder is broken to powder and carries out the packing of product when its moisture content is 8-12%, also the albumen powder particle directly can be carried out pneumatic conveying drying and make Powdered albumen powder, carry out the packing of product.
Scheme 3: described thin albumen slurry is left standstill 7-8hour under 22-32 ℃ of condition, owing to contain amount of starch and other organic matter in the described protein milk, effect bottom fermentation on a large amount of streptococcus lactis etc. bacterium makes the PH of described protein milk drop to 4.36-4.54, this moment, most protein precipitated, and discharged supernatant then.Thereafter operation and scheme 1, or scheme 2 described methods are identical.
The present invention can reclaim albumen powder 10-12.5Kg from each 100Kg produces the waste liquid of feed intake (as pea, mung bean, broad bean etc.) of bean vermicelli.It is light grey, Powdered that described albumen powder outward appearance is, moisture content 8-12%, and PH5 contains protein about 65%, and contains 18 seed amino acids, if add then import substitution fish meal wholly or in part of an amount of methionine in described albumen powder.
But recovery method of the present invention is manual production both, but mechanization production again.When manual production, to compare with existing handicraft technique, the production cycle can shorten 3-4 days, can produce continuously, improves the output and the quality of albumen powder.When mechanization is produced, compared with the prior art, can reduce investment outlay 80%, economize on coal 70%, economize on electricity 90%.If adopt the technology of centrifugal dehydration → Steam Heating → filter-press dehydration → coarse crushing → pneumatic conveying drying then can reduce investment 30%, economize on coal 70%.Therefore, compared with the prior art, the present invention has higher economic benefit.
Embodiment 1: the HCl solution that adds 1.5N in described thin albumen slurry while stirring, transfer PH to 4.1 to leave standstill after the 8hour, bleed off supernatant, the protein concentrate of bottom slurry packed into carry out bull ladle in the filter bags and filter, make the protein concentrate sediment behind the dehydration 24hour, with steam above-mentioned sediment is heated under 105 ℃ of conditions then, and keep temperature 30min.After the cooling, with the described protein concentrate sediment filter-press dehydration under the pressure of 0.8Kg/cm of packing in the simple and easy pressing filter box, make wet meringue, it is the rubber shape, flexible slightly, coarse crushing makes the moisture content of albumen powder reach 11% to graininess and Exposure to Sunlight 8hour then, and fine powder is broken to the Powdered packing of product of carrying out again.This routine rate of recovery is 12.5%.
Embodiment 2: the H that adds 1.0N in described thin albumen slurry while stirring
2SO
4Solution is transferred PH to 4.70, bleeds off supernatant after leaving standstill 17hour, and the protein concentrate slurry of bottom precipitation is packed in the centrifuge, and the 20min that dewaters under 1500 commentaries on classics/min conditions makes the protein concentrate sediment.This sediment with being steam heated to 95 ℃, and is kept temperature 20min, carry out embodiment 1 described filter-press dehydration after the cooling, coarse crushing is to fine granularity, carry out common pneumatic conveying drying then, then can obtain moisture content and be 10% light grey albumen powder, and carry out the packing of product.This routine rate of recovery is 12%.
Embodiment 3: add the 3%(percentage by weight while stirring in described thin albumen slurry) H
2SO
3, transfer PH to 4.5, leave standstill the supernatant of draining behind the 9hour, and the protein concentrate slurry of bottom is packed in the filter bags, in simple and easy pressing filter box,, make the rubber shape, whippy wet meringue with filter-press dehydration 8hour under the pressure of 0.5-1.0Kg/cm.With steam described meringue is heated to 100 ℃ then, and keeps temperature 10min, carry out coarse crushing after the cooling, and the protein body of coarse crushing dried 4hour with usual way, making the moisture content of institute's protein body is 8%, and fine powder is broken to Powdered, and carries out the packing of product.This routine rate of recovery is 12%.
Embodiment 4: described thin albumen slurry is left standstill, let alone to make PH be reduced to 4.70 27 ℃ condition bottom fermentation 7 hours, undertaken by embodiment 1 described method then, can obtain moisture content equally and be light grey pulverous albumen powder of 12%.This routine rate of recovery is 10%.
Claims (4)
1, the recovery method of albumen powder in the factory effluent of vermicelli, comprise isoelectric precipitation, dehydration, oven dry, pulverizing process, it is characterized in that protein milk behind the isoelectric precipitation behind filter-press dehydration, the wet meringue that reclaims with 95-110 ℃, is preferably 100-105 ℃ Steam Heating, and maintenance temperature 10-30min, be preferably 20min, coarse crushing is to graininess then, and Exposure to Sunlight or 50-90 ℃ oven dry 4-8hour down, be preferably hour, carry out fine powder at last and be broken to Powdered.
2, the recovery method of albumen powder in the factory effluent of vermicelli, comprise isoelectric precipitation, dehydration, oven dry, pulverizing process, it is characterized in that behind the isoelectric precipitation protein milk through bull ladle filter or centrifugal dehydration after, with the protein concentrate sediment that reclaims with 95-110 ℃, be preferably 100-105 ℃ Steam Heating, and maintenance temperature 10-30min, be preferably 15-20min, then the protein concentrate sediment that is obtained is carried out filter-press dehydration under the pressure of 0.5-1.0Kg/cm, coarse crushing is to graininess then, and Exposure to Sunlight or 50-90 ℃ of following oven dry 4-8hour, fine powder is broken to Powdered.
3, recovery method according to claim 2 is characterized in that, after carrying out coarse crushing, it is dry and obtain Powdered albumen powder directly to carry out conventional steam flow.
4, recovery method according to claim 2 is characterized in that can prolonging steam-heated temperature hold-time after dewatering when the wet meringue that is reclaimed or protein concentrate sediment are thicker (more than the 10cm), the longlyest can be 3hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89107095 CN1042466A (en) | 1989-09-23 | 1989-09-23 | The recovery method of albumen powder in the factory effluent of vermicelli |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89107095 CN1042466A (en) | 1989-09-23 | 1989-09-23 | The recovery method of albumen powder in the factory effluent of vermicelli |
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| CN1042466A true CN1042466A (en) | 1990-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 89107095 Pending CN1042466A (en) | 1989-09-23 | 1989-09-23 | The recovery method of albumen powder in the factory effluent of vermicelli |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228127A (en) * | 2011-04-26 | 2011-11-02 | 烟台双塔食品股份有限公司 | Edible protein extracted from vermicelli wastewater and processing process thereof |
| CN102250201A (en) * | 2011-06-16 | 2011-11-23 | 华南理工大学 | Preparation method of pea albumen powder with high dissolubility |
-
1989
- 1989-09-23 CN CN 89107095 patent/CN1042466A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228127A (en) * | 2011-04-26 | 2011-11-02 | 烟台双塔食品股份有限公司 | Edible protein extracted from vermicelli wastewater and processing process thereof |
| CN102228127B (en) * | 2011-04-26 | 2013-12-11 | 烟台双塔食品股份有限公司 | Edible protein extracted from vermicelli wastewater and processing process thereof |
| CN102250201A (en) * | 2011-06-16 | 2011-11-23 | 华南理工大学 | Preparation method of pea albumen powder with high dissolubility |
| CN102250201B (en) * | 2011-06-16 | 2013-01-09 | 华南理工大学 | Preparation method of pea albumen powder with high dissolubility |
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