CN109678974A - A kind of starch from sweet potato production method - Google Patents
A kind of starch from sweet potato production method Download PDFInfo
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- CN109678974A CN109678974A CN201811402966.2A CN201811402966A CN109678974A CN 109678974 A CN109678974 A CN 109678974A CN 201811402966 A CN201811402966 A CN 201811402966A CN 109678974 A CN109678974 A CN 109678974A
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- starch
- sweet potato
- production method
- milk
- potato production
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/04—Extraction or purification
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/02—Preparatory treatment, e.g. crushing of raw materials or steeping process
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- Biochemistry (AREA)
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a kind of starch from sweet potato production methods, and described specific step is as follows: sweet potato washing: sweet potato being placed in cleaning machine and is cleaned 1-2 hours；Broken defibrination: by potato dry grinding, and clear water is added by feed liquid mass ratio and adds a certain amount of lime milk solution after mixing evenly, is impregnated；Screenings separation: grinding after immersion, and sieving obtains starch milk；Starch isolation: by ten equal portions of starch milk, and being placed in centrifuge in batches and separated, and upper layer waste liquid is removed after centrifugation, obtains starch.Water consumption can be greatly reduced in the present invention, while can be improved starch income rate, avoid the waste of sweet potato.
Description
Technical field
The present invention relates to starch from sweet potato processing technique field more particularly to a kind of starch from sweet potato production methods.
Background technique
Sweet potato is very extensive in the range of China's plantation, and south from Hainan Province, Heilungkiang is arrived in north, west to western Sichuan mountain area and cloud
Your plateau, is distributed sweet potato, and sweet potato is also known as sweet potato, pachyrhizus, saccharic rich in, vitamin, minerals, food fiber
Deng.The multivitamins such as carrotene, vitamin B1 in sweet potato, to maintain human health required.
Starch from sweet potato is one of the major product of sweet potato processing, and starch from sweet potato can be divided by fresh sweet potatoes and dried sweet potato processing two
Kind, but since the quality of scarlet sweet potato starch is better than the starch of dried sweet potato, so taking fresh sweet potato producing starch as more, but existing sweet potato
The income rate of starch is lower when starch is processed, more wasteful sweet potato, for this purpose, the present invention proposes a kind of starch from sweet potato production method.
Summary of the invention
The purpose of the present invention is to solve the problems of the prior art, and a kind of starch from sweet potato production method proposed.
To achieve the goals above, present invention employs following technical solutions:
A kind of starch from sweet potato production method, described specific step is as follows:
(1), sweet potato washing: sweet potato is placed in cleaning machine and is cleaned 1-2 hours；
(2), it is crushed defibrination: clear water is added by potato dry grinding, and by feed liquid mass ratio, after mixing evenly, add certain
The lime milk solution of amount, is impregnated；
(3), screenings separates: grinding after immersion, sieving obtains starch milk；
(4), it starch isolation: by ten equal portions of starch milk, and is placed in centrifuge and is separated in batches, upper layer is removed after centrifugation
Waste liquid obtains starch.
Preferably, the cleaning machine in the step (1) is oar blade type cleaning machine.
Preferably, it is by the feed liquid mass ratio that feed liquid mass ratio is added in clear water by after potato dry grinding in the step (2)
5:1。
Preferably, in the step (2), the temperature of immersion is maintained between 15-35 degree, and the time is 5-10 hours.
Preferably, lime milk solution is to be mixed by calcium oxide and water according to make a comparison three ratio of quality in the step (2)
Close the suspension formed.
Preferably, the horizontal centrifugal conical screen sifting starch eluriated when sieving using two-stage in the step (3), and be sieved
Mesh number be 60-120 mesh.
Preferably, it before step (4) starch isolation needs that alkaline solution is added, the PH of starch milk is controlled 12.
Preferably, ten equal portions of starch milk in the step (4) are placed on the weight difference of each centrifuge tube when centrifuge separation
Weight is no more than 0.5g, and is centrifuged in triplicate.
Preferably, the temperature for needing to dry after step (4) starch isolation, and drying is controlled in 60-80 degree, after drying
Starch moisture content be 12-20%.
Compared with prior art, the present invention provides a kind of starch from sweet potato production method, have it is following the utility model has the advantages that
Starch milk is centrifuged using centrifuge, is deposited in test tube bottom after starch centrifugal, waste liquid swims in test tube upper end, energy
Enough make waste liquid is as much as possible to separate, while starch being prevented to be lost in separation；
Waste residue is filtered using the horizontal centrifugal conical screen that two-stage is eluriated, separation unit uses law of connected vessels, guarantees level-one
Eluriating room has enough water levels, eluriates the screenings ground sufficiently, eluriates filtering drying to overflow into people's second level, overcomes
It is difficult to the net defect starch of soul using filter wash and filters net rate to greatly improve, water consumption is greatly reduced；
The time impregnated by control and temperature, while starch milk is centrifuged using centrifuge, improve the gained of starch
Rate.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, structure of the invention
Simply, easy to operate.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of starch from sweet potato production method proposed by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
A kind of starch from sweet potato production method, described specific step is as follows:
(1), sweet potato washing: sweet potato is placed in cleaning machine and is cleaned 1-2 hours；
(2), it is crushed defibrination: clear water is added by potato dry grinding, and by feed liquid mass ratio, after mixing evenly, add certain
The lime milk solution of amount, is impregnated；
(3), screenings separates: grinding after immersion, sieving obtains starch milk；
(4), it starch isolation: by ten equal portions of starch milk, and is placed in centrifuge and is separated in batches, upper layer is removed after centrifugation
Waste liquid obtains starch.
Preferably, the cleaning machine in the step (1) is oar blade type cleaning machine, and oar blade type cleaning machine passes through paddle and original
Phase mutual friction between material, raw material and raw material and the silt particle for removing the adherency of raw material surface layer, the cleaning suitable for sweet potato.
Preferably, it is by the feed liquid mass ratio that feed liquid mass ratio is added in clear water by after potato dry grinding in the step (2)
5:1。
Preferably, in the step (2), the temperature of immersion is maintained between 15-35 degree, and the time is 5-10 hours.
Preferably, lime milk solution is to be mixed by calcium oxide and water according to make a comparison three ratio of quality in the step (2)
The suspension formed is closed, the main function of milk of lime processing is to control the pH of soak in alkaline range, and introduce Ca ion, is soaked
Bubble liquid is on the one hand network structure that alkalinity can destroy protein, and starch is made to be easy to be precipitated；On the other hand make pigment be easy to crushed grain to go out,
Improve the whiteness of starch；Alkaline solution can inhibit microbial activities simultaneously, prevent living contaminants；Ca ion simultaneously can be dry with potato
In colloidal substance carboxyl formed bridging combine, reduce potato paste stickiness, make sweet potato paste be easy to sieve.
Preferably, the horizontal centrifugal conical screen sifting starch eluriated when sieving using two-stage in the step (3), and be sieved
Mesh number be 60-120 mesh, two-stage eluriate horizontal centrifugal conical screen separation unit use law of connected vessels, guarantee level-one wash in a pan
Chamber wash has enough water levels, eluriates the screenings ground sufficiently, eluriates filtering drying to overflow into people's second level, overcomes
It is difficult to the net net rate of defect starch filter of soul using a filter wash to greatly improve, water consumption is greatly reduced.
Preferably, it needs that alkaline solution is added before step (4) starch isolation, by the PH control of starch milk 12,
The purpose for adding alkali is to separate plumule, fiber and protein etc. further with starch.
Preferably, ten equal portions of starch milk in the step (4) are placed on the weight difference of each centrifuge tube when centrifuge separation
Weight is no more than 0.5g, and is centrifuged in triplicate, and the effect that interior starch is extracted in centrifugation is more preferable.
Preferably, the temperature for needing to dry after step (4) starch isolation, and drying is controlled in 60-80 degree, after drying
Starch moisture content be 12-20%.
Embodiment 1
As shown in Figure 1, a kind of starch from sweet potato production method, described specific step is as follows:
(1), sweet potato washing: sweet potato is placed in cleaning machine and is cleaned 2 hours；
(2), it is crushed defibrination: clear water is added by potato dry grinding, and by feed liquid mass ratio, after mixing evenly, add certain
The lime milk solution of amount, is impregnated；
(3), screenings separates: grinding after immersion, sieving obtains starch milk；
(4), it starch isolation: by ten equal portions of starch milk, and is placed in centrifuge and is separated in batches, upper layer is removed after centrifugation
Waste liquid obtains starch.
Cleaning machine in the step (1) is oar blade type cleaning machine.
By after potato dry grinding in the step (2), the feed liquid mass ratio in clear water is added as 5:1 by feed liquid mass ratio.
In the step (2), the temperature of immersion is maintained between 15 degree, and the time is 10 hours.
Lime milk solution is to be mixed to form by calcium oxide and water according to make a comparison three ratio of quality in the step (2)
Suspension.
The horizontal centrifugal conical screen sifting starch eluriated when sieving using two-stage in the step (3), and the mesh number being sieved
For 60 and 120 mesh.
It before step (4) starch isolation needs that alkaline solution is added, the PH of starch milk is controlled 12.
Ten equal portions of starch milk in the step (4) are placed on the weight difference weight of each centrifuge tube when centrifuge separation not
More than 0.5g, and it is centrifuged in triplicate.
The temperature for needing to dry after step (4) starch isolation, and drying is controlled at 60 degree, and the starch after drying is aqueous
Rate is 16%.
Embodiment 2
As shown in Figure 1, a kind of starch from sweet potato production method, described specific step is as follows:
(1), sweet potato washing: sweet potato is placed in cleaning machine and is cleaned 2 hours；
(2), it is crushed defibrination: clear water is added by potato dry grinding, and by feed liquid mass ratio, after mixing evenly, add certain
The lime milk solution of amount, is impregnated；
(3), screenings separates: grinding after immersion, sieving obtains starch milk；
(4), it starch isolation: by ten equal portions of starch milk, and is placed in centrifuge and is separated in batches, upper layer is removed after centrifugation
Waste liquid obtains starch.
Cleaning machine in the step (1) is oar blade type cleaning machine.
By after potato dry grinding in the step (2), the feed liquid mass ratio in clear water is added as 5:1 by feed liquid mass ratio.
In the step (2), the temperature of immersion is maintained between 25 degree, and the time is 10 hours.
Lime milk solution is to be mixed to form by calcium oxide and water according to make a comparison three ratio of quality in the step (2)
Suspension.
The horizontal centrifugal conical screen sifting starch eluriated when sieving using two-stage in the step (3), and the mesh number being sieved
For 60 and 120 mesh.
It before step (4) starch isolation needs that alkaline solution is added, the PH of starch milk is controlled 12.
Ten equal portions of starch milk in the step (4) are placed on the weight difference weight of each centrifuge tube when centrifuge separation not
More than 0.5g, and it is centrifuged in triplicate.
The temperature for needing to dry after step (4) starch isolation, and drying is controlled at 60 degree, and the starch after drying is aqueous
Rate is 16%.
Embodiment 3
As shown in Figure 1, a kind of starch from sweet potato production method, described specific step is as follows:
(1), sweet potato washing: sweet potato is placed in cleaning machine and is cleaned 2 hours；
(2), it is crushed defibrination: clear water is added by potato dry grinding, and by feed liquid mass ratio, after mixing evenly, add certain
The lime milk solution of amount, is impregnated；
(3), screenings separates: grinding after immersion, sieving obtains starch milk；
(4), it starch isolation: by ten equal portions of starch milk, and is placed in centrifuge and is separated in batches, upper layer is removed after centrifugation
Waste liquid obtains starch.
Cleaning machine in the step (1) is oar blade type cleaning machine.
By after potato dry grinding in the step (2), the feed liquid mass ratio in clear water is added as 5:1 by feed liquid mass ratio.
In the step (2), the temperature of immersion is maintained between 35 degree, and the time is 10 hours.
Lime milk solution is to be mixed to form by calcium oxide and water according to make a comparison three ratio of quality in the step (2)
Suspension.
The horizontal centrifugal conical screen sifting starch eluriated when sieving using two-stage in the step (3), and the mesh number being sieved
For 60 and 120 mesh.
It before step (4) starch isolation needs that alkaline solution is added, the PH of starch milk is controlled 12.
Ten equal portions of starch milk in the step (4) are placed on the weight difference weight of each centrifuge tube when centrifuge separation not
More than 0.5g, and it is centrifuged in triplicate.
The temperature for needing to dry after step (4) starch isolation, and drying is controlled at 60 degree, and the starch after drying is aqueous
Rate is 16%.
Table 1 is the statistics to the embodiment 1-3 starch income rate carried out:
Starch income rate=extraction starch quality/sweet potato dry mass * 100%
Table 1
| Starch income rate (%) | |
| Embodiment 1 | 66.25 |
| Embodiment 2 | 79.23 |
| Embodiment 3 | 70.17 |
Embodiment 2 is optimal selection as shown in Table 1, and the obtained starch income rate of this method is higher than average level, is worth
It promotes.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of starch from sweet potato production method, which is characterized in that described specific step is as follows:
(1), sweet potato washing: sweet potato is placed in cleaning machine and is cleaned 1-2 hours；
(2), it is crushed defibrination: by potato dry grinding, and clear water is added by feed liquid mass ratio and adds a certain amount of after mixing evenly
Lime milk solution is impregnated；
(3), screenings separates: grinding after immersion, sieving obtains starch milk；
(4), starch isolation: by ten equal portions of starch milk, and being placed in centrifuge in batches and separated, and it is useless that upper layer is removed after centrifugation
Liquid obtains starch.
2. a kind of starch from sweet potato production method according to claim 1, which is characterized in that the cleaning in the step (1)
Machine is oar blade type cleaning machine.
3. a kind of starch from sweet potato production method according to claim 1, which is characterized in that do potato in the step (2)
It is 5:1 by the feed liquid mass ratio that feed liquid mass ratio is added in clear water after crushing.
4. a kind of starch from sweet potato production method according to claim 1, which is characterized in that in the step (2), immersion
Temperature is maintained between 15-35 degree, and the time is 5-10 hours.
5. a kind of starch from sweet potato production method according to claim 1, which is characterized in that milk of lime in the step (2)
Solution is to be made a comparison the suspension that three ratio is mixed to form by calcium oxide and water according to quality.
6. a kind of starch from sweet potato production method according to claim 1, which is characterized in that in the step (3) when sieving
The horizontal centrifugal conical screen sifting starch eluriated using two-stage, and the mesh number being sieved is 60-120 mesh.
7. a kind of starch from sweet potato production method according to claim 1, which is characterized in that step (4) starch isolation
It needs that alkaline solution is added before, the PH of starch milk is controlled 12.
8. a kind of starch from sweet potato production method according to claim 1, which is characterized in that starch milk in the step (4)
Ten equal portions, the weight difference weight of each centrifuge tube is no more than 0.5g when being placed on centrifuge separation, and is centrifuged in triplicate.
9. a kind of starch from sweet potato production method according to claim 1, which is characterized in that step (4) starch isolation
After the temperature that needs to dry, and dry control in 60-80 degree, starch moisture content after drying is 12-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811402966.2A CN109678974A (en) | 2018-11-23 | 2018-11-23 | A kind of starch from sweet potato production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811402966.2A CN109678974A (en) | 2018-11-23 | 2018-11-23 | A kind of starch from sweet potato production method |
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| CN109678974A true CN109678974A (en) | 2019-04-26 |
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| CN201811402966.2A Pending CN109678974A (en) | 2018-11-23 | 2018-11-23 | A kind of starch from sweet potato production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999323A (en) * | 2021-10-28 | 2022-02-01 | 赵素华 | Production method of sweet potato starch |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012601A (en) * | 2012-12-17 | 2013-04-03 | 卢玲玲 | Method for producing sweet potato starch |
| CN105801714A (en) * | 2016-05-26 | 2016-07-27 | 佛山科学技术学院 | Method for extracting mucuna starch |
-
2018
- 2018-11-23 CN CN201811402966.2A patent/CN109678974A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012601A (en) * | 2012-12-17 | 2013-04-03 | 卢玲玲 | Method for producing sweet potato starch |
| CN105801714A (en) * | 2016-05-26 | 2016-07-27 | 佛山科学技术学院 | Method for extracting mucuna starch |
Non-Patent Citations (3)
| Title |
|---|
| 巩发永等: "《马铃薯食品加工技术与质量控制》", 31 July 2018, 西南交通大学出版社 * |
| 方降龙等: ""农村红薯淀粉低污染生产模式探讨"", 《现代农业科技》 * |
| 王家良等: ""提高红薯淀粉得率的浸泡工艺研究"", 《中国粮油学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999323A (en) * | 2021-10-28 | 2022-02-01 | 赵素华 | Production method of sweet potato starch |
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Application publication date: 20190426 |