CN101637215A - Processing method of soy protein and product thereof - Google Patents
Processing method of soy protein and product thereof Download PDFInfo
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- CN101637215A CN101637215A CN200910091707A CN200910091707A CN101637215A CN 101637215 A CN101637215 A CN 101637215A CN 200910091707 A CN200910091707 A CN 200910091707A CN 200910091707 A CN200910091707 A CN 200910091707A CN 101637215 A CN101637215 A CN 101637215A
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Abstract
The invention relates to a processing method of soy protein and a product thereof, and the processing method comprises the following steps: step 1, extracting and separating ground soybean meal and obtaining protein solution and bean dregs; step 2, carrying out acid precipitation on the protein solution, obtaining protein curd and grinding the bean dregs; step 3, mixing slurry of the beam dregs with the protein curd and neutralizing; and step 4, carrying out sterilization and drying. The processing method of the soy protein and the product thereof not only solve the post-treatment problem of the bean dregs during the processing of separating the protein, but also have stronger functional property in comparison with concentrated soy protein and solve the difficult problems of lower nitrogensoluble index of the concentrated protein and lower crude protein content.
Description
Technical field
The present invention relates to processing method of a kind of soybean protein and products thereof, particularly relate to a kind of bean dregs that make full use of, and can improve the processing method and products thereof of the soybean protein of protein functional.
Background technology
The protein product of soybean deep processing mainly contains two kinds of soybean protein isolate and FSPCs.The nitrogen solubility index of soybean protein isolate, crude protein content height, gelation, emulsibility are good, water conservation, protect oiliness and can give prominence to, but isolated a large amount of bean dregs are nutritious in the production process, as deal with improperly and can cause great waste.Though FSPC also has functional characteristic preferably, owing to contain the cause of a large amount of bean dregs, nitrogen solubility index and crude protein content are on the low side, can not substitute soybean protein isolate fully and be applied to meat products, cold drink and bakery.How to found a kind of post processing problem that solves bean dregs in the soybean protein isolate processing, the content of protein concentrate ammonia and crude protein is higher than the processing method and products thereof of the new soybean protein of FSPC again, belongs to the current industry utmost point and needs improved target in fact.
Summary of the invention
The objective of the invention is to, overcome the defective that the processing method of existing soybean protein exists, and a kind of processing method of novel soybean protein is provided, technical problem to be solved is to make it both solve the post processing problem of bean dregs in the protein isolate processing, thereby, be suitable for practicality more.
Another object of the present invention is to, overcome the defective that existing soybean protein exists, and provide a kind of new soy protein products, technical problem to be solved is that it is had is stronger functional, solve a protein concentrate nitrogen solubility index and a crude protein content difficult problem on the low side, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.The processing method of a kind of soybean protein that proposes according to the present invention may further comprise the steps: step 1, and extract and separate pulverizing dregs of beans, obtain protein solution and bean dregs; Step 2 is carried out the heavy acquisition of acid albumen curd to protein solution, and to the bean dregs defibrination; Step 3 is mixed the bean dregs slurry, neutralize with albumen curd; Step 4, sterilization and dry.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The processing method of aforesaid a kind of soybean protein, described step 1, extract and separate pulverizing dregs of beans, be meant: the low sex change dregs of beans that will pulverize is transported to extractor, the water that adds 8～9 times of quality, regulating pH with alkali lye is 7.2 ± 0.2 extractions, mixing speed is 90r/min, temperature is controlled to be 40～45 ℃, the extraction time is 45～55min, extract and bean dregs are transported to horizontal centrifuge with pump carry out centrifugation, the protein solution of acquisition is sent into and is mixed the soya-bean milk jar, and bean dregs enter the extraction storage tank.
The processing method of aforesaid a kind of soybean protein, described bean dregs enter before the extraction storage tank, earlier through separating broken processing.
The processing method of aforesaid a kind of soybean protein, in the described step 2, protein solution is carried out the heavy albumen curd that obtains of acid, be meant: protein solution is squeezed into heavy jar of acid with pump, add hydrochloric acid solution under 45 ℃ of conditions, mixing speed is 60～70r/min, after the pH value is adjusted to 4.2～4.6, leave standstill 30min, be transported to horizontal centrifuge with screw pump again and isolate the albumen curd precipitation.
The processing method of aforesaid a kind of soybean protein in the described step 2, comprises that also the albumen curd that obtains is added the water grinding to be separated broken.
The processing method of aforesaid a kind of soybean protein in the described step 2, to the bean dregs defibrination, is meant: the bean dregs with step 1 obtains are transported to the colloid mill defibrination.
The processing method of aforesaid a kind of soybean protein, described step 3, bean dregs slurries is mixed, neutralize with albumen curd, be meant: the bean dregs of step 2 acquisition are starched and albumen curd with 1～2: 5 ratio mixing in blending tank, send into centrifuge and wash separation, separate broken again with machine for decomposing and smashing, deliver to neutralizing tank then, add 5% sig water, be neutralized to pH7.2 ± 0.2, temperature is controlled at 28～32 ℃, and mixing speed is 80r/min.
The processing method of aforesaid a kind of soybean protein, described step 4, sterilization and dry is meant: the protein liquid that step 3 is obtained pumps into heater with plunger displacement pump, through high-temperature short-time sterilization, high-pressure homogeneous, spray-drying.
The processing method of aforesaid a kind of soybean protein after the described step 4, also comprises step 5, collects dried soyabean protein powder, and screening separates and packs.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of soy protein products that the present invention proposes, be to make according to above-mentioned method.
The present invention compared with prior art has following tangible advantage and beneficial effect at least:
1, a kind of soy protein products of the present invention is nutritious, and is functional good.
2, the processing method of a kind of soybean protein of the present invention by the addition of control bean dregs slurry, can be processed the soy protein products of different crude protein contents on request.
3, the processing method of a kind of soybean protein of the present invention, a production line can soybean processing albumen and two kinds of products of protein isolate.
4, the processing method of a kind of soybean protein of the present invention only is to do slightly improvement for existing soybean protein processing method, and product efficacy is better, and meets cost benefit, is suitable for industrial circle and extensively promotes the use of.
In sum, processing method of a kind of soybean protein of the present invention and products thereof, both solve the post processing problem of bean dregs in the protein isolate processing, had stronger functionally again than FSPC, solved a protein concentrate nitrogen solubility index and a crude protein content difficult problem on the low side.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on processing method or product efficacy, obvious improvement is arranged technically, and produced handy and practical effect, and more existing soybean protein processing method has outstanding effect, thereby be suitable for practicality more, and have industrial utilization widely.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the work flow block diagram of processing method of a kind of soybean protein of the present invention and products thereof.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, processing method of a kind of soybean protein that foundation the present invention is proposed and products thereof its specific embodiment, processing method, step, feature and effect thereof describe in detail.
The processing method of a kind of soybean protein of the present invention mainly may further comprise the steps:
Step 1 extracts and separates pulverizing dregs of beans.
The low sex change dregs of beans of pulverizing is transported to extractor, adds the water of 8～9 times of quality, extract under the condition with alkali lye adjusting pH to 7.2 ± 0.2, mixing speed is 90r/min, and temperature is controlled to be 40～45 ℃, and the extraction time is 45～55min.Extract and bean dregs are transported to horizontal centrifuge with pump carry out centrifugation, the product of acquisition is respectively protein solution and bean dregs, protein solution is sent into mixed the soya-bean milk jar, and bean dregs are entered the extraction storage tank after separating broken processing.
Step 2 is carried out the heavy acquisition of acid albumen curd to protein solution, and to the bean dregs defibrination.
The protein solution that mixes in the soya-bean milk jar is squeezed into heavy jar of acid with pump, add hydrochloric acid solution under 45 ℃ of conditions, mixing speed is 60～70r/min, after the pH value is adjusted to 4.2～4.6, leaves standstill 30min, and protein precipitation is got off.Albumen and whey after the precipitating are transported to horizontal centrifuge with screw pump, isolated albumen curd precipitation is added the water grinding separate broken.Simultaneously, the bean dregs with in the extraction storage tank of step 1 acquisition are transported to the colloid mill defibrination, obtain the bean dregs slurry.
Step 3 is mixed the bean dregs slurry, neutralize with albumen curd.
The bean dregs slurry that step 2 is obtained and albumen curd are with 1～2: 5 ratio mixing in blending tank, send into centrifuge and wash separation, separate broken again with machine for decomposing and smashing, deliver to neutralizing tank then, sig water to neutralizing tank adding 5%, be neutralized to pH7.2 ± 0.2, temperature is controlled at 30 ± 2 ℃, and mixing speed is 80r/min.
Step 4, sterilization and dry.
The protein liquid that obtains through step 3 in the neutralizing tank is pumped into heater with plunger displacement pump, through high-temperature short-time sterilization, high-pressure homogeneous, spray-drying.
Step 5 is collected dried soyabean protein powder, and screening separates and packs.
The processing method of a kind of soybean protein of the present invention, can utilize a production line to obtain two kinds of products: the one, the common soybeans protein isolate product that obtains after the bean dreg separation; Another product then is the protein product that has mixed the certain proportion bean dregs.The present invention has made full use of bean dregs, has solved the post processing problem of bean dregs in the protein isolate processing, and the product that makes has higher trophism and stronger functional, has solved protein concentrate nitrogen solubility index and crude protein content problem on the low side.In addition, owing to contain non-protein ingredient in the bean dregs, therefore, also can regulate the addition of bean dregs slurry, to obtain the product of different protein contents according to customer demand.
Below, enumerate the part preferred embodiment, each step of the present invention is described further.
Embodiment 1
Step 1 is transported to extractor with the defatted soybean meal of pulverizing, and adds the water of 8 times of quality, and regulating pH with alkali lye is 7.0 extractions, and mixing speed is 90r/min, and temperature is controlled to be 40 ℃, and the extraction time is 45min.Extract and bean dregs are transported to horizontal centrifuge with pump carry out centrifugation, isolated protein solution is sent into and is mixed the soya-bean milk jar, and bean dregs enter the extraction storage tank.
Step 2 is squeezed into heavy jar of acid with the soya-bean milk that mixes in the soya-bean milk jar with pump, and adding the hydrochloric acid solution mixing speed under 45 ℃ of conditions is 60r/min, when regulating pH to 4.2, leaves standstill 30min, and protein precipitation is got off.Albumen after the precipitating is transported to horizontal centrifuge with whey with screw pump makes whey be separated with albumen curd, and isolated albumen curd adds the water grinding and separates broken.Simultaneously,, control flow, be transported to the colloid mill defibrination with flowmeter with the bean dregs in the extraction storage tank.
Step 3, separating bean dregs slurry after broken and albumen curd ratio mixing in blending tank with 1: 5, send into centrifuge and wash separation, separate broken again with machine for decomposing and smashing, deliver to neutralizing tank then, the sig water to neutralizing tank adding 5% is neutralized to pH7.0, temperature is controlled at 28 ℃, and mixing speed is 80r/min.
Step 4 pumps into heater with the protein liquid in the neutralizing tank with plunger displacement pump, after high-temperature short-time sterilization, high-pressure homogeneous, spray-drying, collects soyabean protein powder, and screening is packed after separating.
Through sampling Detection, the prepared soybean protein of present embodiment: CP (crude protein content) is 80.1%, and NSI (soluble protein content) is 75.2%, and ash content is 5.5%.
Embodiment 2
Step 1 is transported to extractor with the defatted soybean meal of pulverizing, and adds the water of 8.5 times of quality, and regulating pH with alkali lye is 7.2 extractions, and mixing speed is 90r/min, and temperature is controlled to be 43 ℃, and the extraction time is 50min.Extract and bean dregs are transported to horizontal centrifuge with pump carry out centrifugation, isolated protein solution is sent into and is mixed the soya-bean milk jar, and bean dregs enter the extraction storage tank.
Step 2 is squeezed into heavy jar of acid with the soya-bean milk that mixes in the soya-bean milk jar with pump, adds hydrochloric acid solution under 45 ℃ of conditions, and mixing speed is 65r/min, when regulating pH to 4.4, leaves standstill 30min, and protein precipitation is got off.Albumen after the precipitating is transported to horizontal centrifuge with whey with screw pump makes whey be separated with albumen curd, and isolated albumen curd adds the water grinding and separates broken.Simultaneously,, control flow, deliver to the colloid mill defibrination with flowmeter with the bean dregs in the extraction storage tank.
Step 3 separating bean dregs slurry after broken and the albumen curd ratio mixing in blending tank with 1.5: 5, is sent into centrifuge and is washed separation, separates brokenly again with machine for decomposing and smashing, delivers to neutralizing tank then.Sig water to neutralizing tank adding 5% is neutralized to pH7.2, and temperature is controlled at 30 ℃, and mixing speed is 80r/min.
Step 4 pumps into heater with the protein liquid in the neutralizing tank with plunger displacement pump, after high-temperature short-time sterilization, high-pressure homogeneous, spray-drying, collects and packs after the soyabean protein powder screening separates.
Through sampling Detection, the prepared soybean protein of present embodiment: CP is 77.3%, and NSI is 73.6%, and ash content is 5.9%.
Embodiment 3
Step 1 is transported to extractor with the defatted soybean meal of pulverizing, and adds the water of 9 times of quality, and regulating pH with alkali lye is 7.4 extractions, and mixing speed is 90r/min, and temperature is controlled to be 45 ℃, and the extraction time is 55min.Extract and bean dregs are transported to horizontal centrifuge with pump carry out centrifugation, isolated protein solution is sent into and is mixed the soya-bean milk jar, and bean dregs enter the extraction storage tank.
Step 2 is squeezed into heavy jar of acid with the soya-bean milk that mixes in the soya-bean milk jar with pump, and adding the hydrochloric acid solution mixing speed under 45 ℃ of conditions is 65r/min, when regulating pH to 4.4, leaves standstill 30min, and protein precipitation is got off.Albumen after the precipitating is transported to horizontal centrifuge with whey with screw pump makes whey be separated with albumen curd, and isolated albumen curd adds the water grinding and separates broken.Simultaneously,, control flow, be transported to the colloid mill defibrination with flowmeter with the bean dregs in the extraction storage tank.
Step 3, separating bean dregs slurry after broken and albumen curd ratio mixing in blending tank with 2: 5, send into centrifuge and wash separation, separate broken again with machine for decomposing and smashing, deliver to neutralizing tank then, the sig water to neutralizing tank adding 5% is neutralized to pH7.2, temperature is controlled at 32 ℃, and mixing speed is 80r/min.
Step 4 pumps into heater with the protein liquid in the neutralizing tank with plunger displacement pump, after high-temperature short-time sterilization, high-pressure homogeneous, spray-drying, collects soyabean protein powder, and screening is packed after separating.
Through sampling Detection, the prepared soybean protein of present embodiment: CP (crude protein content) is 75.3%, and NSI (soluble protein content) is 71.2%, and ash content is 5.6%.
Soy protein products by the above method of the present invention makes has increased dietary fiber than existing product, therefore has more trophism.In addition, water imbibition, oil absorption, bubble, bubble stability, emulsibility, emulsion stability and the gelation of the product that above-mentioned 3 specific embodiments are made carry out quantitative assay, and try to achieve the characterisitic parameter of the mean value of above-mentioned every functional characteristic as product of the present invention.The functional characteristic parameter of existing common separation protein product and the characterisitic parameter of product of the present invention are compared, and be listed as follows.As can be seen from the table, product of the present invention has better functional than existing product.
| Functional characteristic | Water imbibition | Oil absorption | Foaming characteristic | Foaming stability | Emulsibility | Emulsion stability | Gelation |
| Common separation albumen | ??9.2g/g | ??1.48mL/g | ??52.1％ | ??65％ | ??54.4％ | ??50.9％ | ??147g |
| Patented product | ??10.4g/g | ??1.78mL/g | ??56.0％ | ??68％ | ??55.2％ | ??51.7％ | ??157g |
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, any those skilled in the art, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents that can utilize above-mentioned announcement, all still belong in the scope of technical solution of the present invention.
Claims (10)
1, a kind of processing method of soybean protein is characterized in that may further comprise the steps:
Step 1 extracts and separates pulverizing dregs of beans, obtains protein solution and bean dregs;
Step 2 is carried out the heavy acquisition of acid albumen curd to protein solution, and to the bean dregs defibrination;
Step 3 is mixed the bean dregs slurry, neutralize with albumen curd;
Step 4, sterilization and dry.
2, the processing method of a kind of soybean protein according to claim 1 is characterized in that described step 1, extracts and separates pulverizing dregs of beans, is meant:
The low sex change dregs of beans of pulverizing is transported to extractor, the water that adds 8～9 times of quality, regulating pH with alkali lye is 7.2 ± 0.2 extractions, mixing speed is 90r/min, temperature is controlled to be 40～45 ℃, and the extraction time is 45～55min, extract and bean dregs is transported to horizontal centrifuge with pump carries out centrifugation, the protein solution that obtains is sent into and is mixed the soya-bean milk jar, and bean dregs enter the extraction storage tank.
3, the processing method of a kind of soybean protein according to claim 2 is characterized in that described bean dregs enter before the extraction storage tank, earlier through separating broken processing.
4, the processing method of a kind of soybean protein according to claim 1 is characterized in that in the described step 2, and protein solution is carried out the heavy albumen curd that obtains of acid, is meant:
Protein solution is squeezed into heavy jar of acid with pump, add hydrochloric acid solution under 45 ℃ of conditions, mixing speed is 60～70r/min, after the pH value is adjusted to 4.2～4.6, leaves standstill 30min, is transported to horizontal centrifuge with screw pump again and isolates the albumen curd precipitation.
5, the processing method of a kind of soybean protein according to claim 1 is characterized in that in the described step 2, comprises that also the albumen curd that obtains is added the water grinding to be separated broken.
6, the processing method of a kind of soybean protein according to claim 1 is characterized in that to the bean dregs defibrination, being meant in the described step 2:
Bean dregs with step 1 obtains are transported to the colloid mill defibrination.
7, the processing method of a kind of soybean protein according to claim 1 is characterized in that described step 3, and the bean dregs slurry is mixed, neutralizes with albumen curd, is meant:
The bean dregs slurry that step 2 is obtained and albumen curd are with 1～2: 5 ratio mixing in blending tank, send into centrifuge and wash separation, separate broken again with machine for decomposing and smashing, deliver to neutralizing tank then, the sig water of adding 5%, be neutralized to pH7.2 ± 0.2, temperature is controlled at 28～32 ℃, and mixing speed is 80r/min.
8, the processing method of a kind of soybean protein according to claim 1 is characterized in that described step 4, and sterilization and dry is meant:
The protein liquid that step 3 is obtained pumps into heater with plunger displacement pump, through high-temperature short-time sterilization, high-pressure homogeneous, spray-drying.
9,, it is characterized in that also comprising step 5 after the described step 4 that collect dried soyabean protein powder, screening separates and packs according to the processing method of the described a kind of soybean protein of the arbitrary claim of claim 1-8.
10, a kind of soy protein products is characterized in that it being to make according to the described method of the arbitrary claim of claim 1-9.
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| CN103211081A (en) * | 2013-03-29 | 2013-07-24 | 黑龙江省大豆技术开发研究中心 | Preparation method of special soybean protein isolate for frozen meat product and application thereof |
| CN103788170A (en) * | 2014-01-24 | 2014-05-14 | 江苏谷全生物科技有限公司 | Vegetable protein continuous separation device |
| CN103897014A (en) * | 2012-12-25 | 2014-07-02 | 苏州悦华生物科技有限公司 | Upper-position separation device and method for grease vegetable protein |
| CN104256050A (en) * | 2014-10-21 | 2015-01-07 | 临邑禹王植物蛋白有限公司 | Production method for soybean protein |
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