CN1961705A - Alcohol processed soybean protein concentrate modifying method by use of microwave and additive - Google Patents
Alcohol processed soybean protein concentrate modifying method by use of microwave and additive Download PDFInfo
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- CN1961705A CN1961705A CN 200610123681 CN200610123681A CN1961705A CN 1961705 A CN1961705 A CN 1961705A CN 200610123681 CN200610123681 CN 200610123681 CN 200610123681 A CN200610123681 A CN 200610123681A CN 1961705 A CN1961705 A CN 1961705A
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Abstract
Disclosed is an ultrasonic and additive modifying method for alcohol process soybean concentrated protein, which consists of preparing aqueous solution from alcohol process soybean concentrated albumen powder, adding addition agent, adjusting pH, carrying out microwave processing and centrifugal separation, finally drying the centrifugation liquid. and disintegrating. The dissolution index and functional properties of the concentrated protein can be improved.
Description
Technical field
The present invention relates to a kind of method of modifying technology field of alcohol processed soybean protein concentrate, specifically relate to a kind of microwave and additive agent modified method of alcohol processed soybean protein concentrate.
Background technology
The soybean protein isolate functional character is good, protein content is high; Be to utilize the molten acid of alkali to sink method production, need in process of production to use a large amount of acid ﹠ alkali liquids, cause equipment corrosion; Producing a large amount of waste liquids pollutes the environment; And there are the beany flavor and the flatulence factor, seriously restricted it in Application in Food.Alcohol processed soybean protein concentrate is to be protein concentrate behind compound sugar, isoflavones and the taste compound etc. in the certain density ethanolic solution wash-out of the prepared using dregs of beans with the defatted soybean meal.The production of alcohol processed soybean protein concentrate is little to equipment corrosion, can remove the beany flavor and the flatulence factor, and eluting solvent ethanol can be recycling, product yield height, and cost is low.Although the protein content in the FSPC is than low (being about 65.0%) in the soybean protein isolate, as some functional mass of crude fibre, polysaccharide etc., obtain local flavor, color and luster albumen preferably in the reservation soybean.
Soybean protein isolate is in elution process, and the violent denaturation of ethanol causes soybean protein isolate poorly soluble, and the nitrogen solubility index of resultant product (NSI) seriously restricts the application of soybean protein isolate less than 5.0%.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, the microwave and the additive agent modified method of the alcohol processed soybean protein concentrate that a kind of cost is low, efficient high product dissolubility is good, quality is high is provided.
The microwave of alcohol processed soybean protein concentrate of the present invention and additive agent modified method comprise the steps:
The first step is made into 1.0～17.0% the aqueous solution with the alcohol processed soybean protein concentrate powder, adds 0.1～20% ‰ food additives, adjust pH scope 8.0～13.0; Stir;
Second step, under 35～90 ℃, microwave treatment 0.1～10 minute, power density were 0.1～15kW/m with the solution of gained
3
The solution that second step of the 3rd step obtains carries out freeze drying or spray-drying, gets product after the pulverizing.
Before the microwave treatment, solution is carried out homogeneous handle in second step.Improve the dissolubility of alcohol processed soybean protein concentrate.
The solution that second step obtained carries out centrifugation, and the centrifugate that obtains is alcohol processed soybean protein concentrate powder solution.To reach the requirement of market to the alcohol processed soybean protein concentrate powder of different qualities.
The solution that second step obtained carries out freeze drying under-15～-50 ℃, or 30～90 ℃ of spray-dryings, gets product after the pulverizing.
Described food additives are used for hydrotropy.In described food additives preferred emulsifier, antioxidant, thickener, the enzyme preparation one or more.
The pH value is different with the rule that dissolving presents of soybean protein isolate to the dissolving of FSPC; The pH value meets universal law to the dissolving of soybean protein isolate influence, and promptly to depart from the isoelectric point of protein big more for the pH value, and solubility is high more; And alcohol processed soybean protein concentrate in the pH value less than 8 o'clock, solubility is very low.
In second step, not at this parameter area, wayward temperature causes irreversible thermal denaturation.
Also can before the drying in described the 3rd step, solution be concentrated.
The microwave treatment technology that the present invention adopts is the no thermograde (homogeneous heating) that has of utilizing microwave, and speed is fast, can sterilize, and makes that not needing that solution is carried out heat sterilization handles.
The present invention compared with prior art has following advantage:
1 obtains the high alcohol processed soybean protein concentrate powder of dissolubility, and the dissolving index can be up to 100% according to the market demands adjustment;
2 additives can be under same pH value, heat time heating time be not additivated sample 1/3 to 1/5; Under the same temperature, more not additivated sample reduces pH value 1.0-2.5;
Functional characters such as the emulsibility of the alcohol processed soybean protein concentrate powder of 3 resulting highly dissolubles, foaming characteristic improve a lot;
4 because use microwave treatment technology is energy-conservation, saves time sterilization;
5 equipment clean and are simple, convenient.
The specific embodiment
Embodiment 1:
The first step is got alcohol processed soybean protein concentrate powder (dissolving index 5.0%) 5.0g, and adding 495.0g water is made into 1.0% the aqueous solution, adds 2% additive SE, and adjust pH 8.0 stirs;
Second step, at 35 ℃, microwave treatment 0.1 minute, power density were 0.1kW/m with the solution of gained
3
The solution of the 3rd step with gained carries out centrifugation, and the centrifugate that obtains is alcohol processed soybean protein concentrate powder solution;
The 4th step centrifugate is carried out freeze drying under-15 ℃, get product after the pulverizing.
Obtain dissolving index 85.0%, color is colourless product, under the similarity condition, additive-freely obtains dissolving index 55.0%, and color is slightly yellow product.
Embodiment 2
The first step is got alcohol processed soybean protein concentrate powder (dissolving index 5.0%) 10.0g, and adding 490.0g water is made into 2.0% the aqueous solution, adds 1.0% additive T-80, and adjust pH 13 stirs;
Second step, at 55 ℃, microwave treatment 2 minutes, power density were 1.5kW/m with the solution of gained
3
The solution of the 3rd step with gained carries out centrifugation, and the centrifugate that obtains is alcohol processed soybean protein concentrate powder (SPC powder) solution;
The 4th step centrifugate gets product 90 ℃ of spray-dryings after the pulverizing.
Obtain dissolving index 90.0%, color is slightly yellow product; Under the similarity condition, additive-freely obtain dissolving index 65.0%, color is for being with lurid product.
Embodiment 3
The first step is got alcohol processed soybean protein concentrate powder (SPC powder, dissolving index 5.0%) 10.0g, and adding 490.0g water is made into 2% the aqueous solution, adds 1.5% additive Span80, and adjust pH 12.0 stirs;
Second step, at 60 ℃, microwave treatment 10 minutes, power density were 0.8kW/m with the solution of gained
3
The solution of the 3rd step with gained carries out centrifugation, and the centrifugate that obtains is alcohol processed soybean protein concentrate powder (SPC powder) solution;
The 4th step centrifugate is carried out freeze drying under-50 ℃, get product after the pulverizing.
Obtain dissolving index 99.0%, color is slightly yellow product; Under the similarity condition, additive-freely obtain dissolving index 61.5%, color is for being with lurid product.
Embodiment 4
The first step is got alcohol processed soybean protein concentrate powder (dissolving index 5.0%) 10.0g, and adding 490.0g water is made into 2.0% the aqueous solution, adds 2.0% food additives STPP, and adjust pH 10.0 stirs;
Second step, at 35 ℃, microwave treatment 1 minute, power density were 0.3kW/m with the solution of gained
3
The solution of the 3rd step with gained carries out centrifugation, and the centrifugate that obtains is alcohol processed soybean protein concentrate powder (SPC powder) solution;
The 4th step centrifugate gets product 30 ℃ of spray-dryings after the pulverizing.
Obtain dissolving index 70.8%, color is the product of white; Under the similarity condition, additive-freely obtain dissolving index 43.5%, color is for being with lurid product.
Embodiment 5
The first step is got alcohol processed soybean protein concentrate powder (dissolving index 5.0%) 85.0g, and adding 415.0g water is made into 17.0% the aqueous solution, adds 1.5% food additives DAS5, and adjust pH 11.0 stirs;
Second step, at 60 ℃, microwave treatment 4 minutes, power density were 0.6kW/m with the solution of gained
3
The solution of the 3rd step with gained carries out centrifugation, and the centrifugate that obtains is alcohol processed soybean protein concentrate powder solution;
The 4th step centrifugate is carried out freeze drying under-50 ℃, get product after the pulverizing.
Obtain dissolving index 82.5%, color is lurid product; Under the similarity condition, additive-freely obtain dissolving index 57.5%, color is for being with lurid product.
Claims (5)
1, a kind of microwave of alcohol processed soybean protein concentrate and additive agent modified method is characterized in that comprising the steps:
The first step is made into 1.0～17.0% the aqueous solution with the alcohol processed soybean protein concentrate powder, adds 0.1～20 ‰ food additives, adjust pH scope 8.0～13.0; Stir;
Second step, under 35～90 ℃, microwave treatment 0.1～10 minute, power density were 0.1～1.5kW/m with the solution of gained
3
The solution that second step of the 3rd step obtains carries out freeze drying or spray-drying, gets product after the pulverizing.
2, method according to claim 1 is characterized in that, before the microwave treatment, solution is carried out homogeneous handle in second step.
3, method according to claim 1 and 2 is characterized in that, the solution that second step obtained carries out centrifugation, and the centrifugate that obtains is alcohol processed soybean protein concentrate powder solution.
4, method according to claim 3 is characterized in that, the solution that second step obtained carries out freeze drying under-15～-50 ℃, or 30～90 ℃ of spray-dryings, gets product after the pulverizing.
5, method according to claim 4 is characterized in that described food additives are one or more in emulsifying agent, antioxidant, thickener, the enzyme preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610123681 CN1961705A (en) | 2006-11-21 | 2006-11-21 | Alcohol processed soybean protein concentrate modifying method by use of microwave and additive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610123681 CN1961705A (en) | 2006-11-21 | 2006-11-21 | Alcohol processed soybean protein concentrate modifying method by use of microwave and additive |
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| CN1961705A true CN1961705A (en) | 2007-05-16 |
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| CN 200610123681 Pending CN1961705A (en) | 2006-11-21 | 2006-11-21 | Alcohol processed soybean protein concentrate modifying method by use of microwave and additive |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849607A (en) * | 2010-05-21 | 2010-10-06 | 东北农业大学 | Method for increasing content of soluble proteins of high-temperature denatured soybean meal by microwave processing |
| CN103772481A (en) * | 2014-02-10 | 2014-05-07 | 孟祥军 | Continuous soybean active peptide extraction machine |
| CN104161161A (en) * | 2014-05-29 | 2014-11-26 | 江南大学 | Method for processing and preparing instant wheat germ isolated protein through microwaves |
-
2006
- 2006-11-21 CN CN 200610123681 patent/CN1961705A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849607A (en) * | 2010-05-21 | 2010-10-06 | 东北农业大学 | Method for increasing content of soluble proteins of high-temperature denatured soybean meal by microwave processing |
| CN103772481A (en) * | 2014-02-10 | 2014-05-07 | 孟祥军 | Continuous soybean active peptide extraction machine |
| CN103772481B (en) * | 2014-02-10 | 2016-06-01 | 孟祥军 | Soybean active peptide equipment for continuous extraction |
| CN104161161A (en) * | 2014-05-29 | 2014-11-26 | 江南大学 | Method for processing and preparing instant wheat germ isolated protein through microwaves |
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Open date: 20070516 |