CN102276738A - Extraction method of fern root starch - Google Patents
Extraction method of fern root starch Download PDFInfo
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- CN102276738A CN102276738A CN2011102186302A CN201110218630A CN102276738A CN 102276738 A CN102276738 A CN 102276738A CN 2011102186302 A CN2011102186302 A CN 2011102186302A CN 201110218630 A CN201110218630 A CN 201110218630A CN 102276738 A CN102276738 A CN 102276738A
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- starch
- runner
- separating
- fern root
- gradient
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Abstract
The invention provides an extraction method of fern root starch. The method comprises the following steps: selecting materials, cleaning, soaking, crushing, performing primary cracking, performing secondary cracking, filtering and separating, performing primary sand removing and separating, performing secondary sand removing and separating, precipitating and separating in a runner, whirling, placing on a plate, baking and packaging, wherein in the step of precipitating and separating in the runner, the length of the runner facility is between 98m and 128m, the runner bottom has a gradient of 0.23-0.38%. The extraction method has the advantages that starch can be sufficiently isolated, by virtue of multiple times of crushing and multiple times of separation, the runner length in the runner precipitation and separation step is defined to be 98-128m, the gradient of the runner bottom is 0.23-0.38%, so that the starch is just precipitated at the runner bottom and flows out of the runner when other impurities are not precipitated, and the purity of the starch is improved.
Description
Technical field
The present invention relates to a kind of starch extracting method, particularly a kind of extracting method of fern root starch.
Background technology
The Cyclosorus per nnial herb, subterraneous root can be made starch, can be used as the raw material of other food then.Fern root starch is edible not only, also have very big health care and pharmaceutical use, the fern powder has remuval of damp and hot, the meridian dredging, Shujin bone, the insufficient drug effect of tonifying the five internal organs, can be used as first-class tonic, the fern powder also can be produced protective foodss such as fern powder bar, fern powder custard, so all there is the processing of fern powder in many places.But also contain other material in the fern root except starch, grade as starch, nitrogen-free extract, crude fat, robust fibre, crude protein, ash, the starch that existing working method obtains contains a large amount of impurity, has a strong impact on quality product.Application for a patent for invention numbers 200610110201.2 has announced that " a kind of processing method of obtaining through refining the root of kudzu vine, fern root starch " comprising: sieving and grading, preliminary broken, repeatedly the powder mushroom sieve, steps such as separating and dehydrating, hot-air seasoning, test package.The starch impurities of extracting with this method is a lot, and purity is very low, and color is more black, has had a strong impact on starch quality.
Summary of the invention
Technical problem to be solved by this invention provides a kind of extracting method of fern root starch, so that remove impurity to a greater extent, improves the purity of fern root starch, improves the edible and healthy and the pharmaceutical use of fern root starch.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is a kind of extracting method of fern root starch, the steps include: to select materials, clean, soak, broken, first powder essence, secondary powder essence, filtering separation, for the first time take off huskyly separate, secondary takes off husky separations, chute precipitate and separate, drying, go up dish, oven dry, pack; Wherein the length of chute facility is 98-128 rice in the chute precipitate and separate step, and bottom land is gradient, and gradient is between 2.3 ‰-3.8 ‰; Other step adopts existing method.
The invention has the beneficial effects as follows has repeatedly powder essence in the extracting method, separating for several times can make starch fully dissociate out; Chute length in the chute precipitate and separate step is 98-128 rice, and the bottom land gradient is 2.3 ‰-3.8 ‰, can make like this starch just right be deposited in bottom land, other impurity when also not precipitating by spout outside, improved the purity of starch.
Embodiment
The invention will be further described below in conjunction with embodiment.
Select fern root 500kg for use, the fern root is removed silt, wipe out rotten root, wash with clear water again; Then soaked 1-3 days, softening particle, reduction weave construction intensity are destroyed the protein network structure, are washed and remove the portion water soluble substance; Carry out fragmentation then,, make starch granules from cell, dissociate out,, sieve after the fragmentation, separately starch milk in order to extraction to destroy the cell tissue of fern root starch material; After sieving the screen overflow of gained is carried out first powder essence again and rescreen residue then, obtain starch milk; The pure one-tenth of secondary powder pasty state can grade starch small grain with nitrogen-free extract, crude fat, robust fibre, crude protein, ash and separates well then; Then, remove thicker dregs, take off husky the separation then for the first time, remove fine impurities and crude fat, robust fibre, obtain starch milk the mashed prod filtering separation.Then carry out secondary and take off husky the separation, thin slag is removed.Carry out the chute precipitate and separate then, chute is the wedged bottom groove of elongated folding shape, 128 meters of groove length overalls, and wide 40 centimetres, the bottom land gradient is every meter and raises 3 millimeters.Starch is made laminar flows in the chute, because the ratio of starch granules is great, fast about 3 times than protein of settling velocity are so be deposited in bottom land earlier.Flow out continuously by the groove tail when still suspending in water in the protein precipitation that is not able to do in time, make protein and starch separately; At last sedimentary starch is dried, go up in the dish, put into drying machine again and dry, then the packing warehouse-in.
Claims (2)
1. the extracting method of a fern root starch is characterized in that extraction step is: select materials, clean, soak, broken, first powder essence, secondary powder essence, filtering separation, for the first time take off huskyly separate, secondary takes off husky separations, chute precipitate and separate, drying, go up dish, oven dry, pack.
2. the extracting method of a kind of fern root starch according to claim 1 is characterized in that the length of chute facility in the chute precipitate and separate step is 98-128 rice, and bottom land is gradient, and gradient is between 2.3 ‰-3.8 ‰.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102186302A CN102276738A (en) | 2011-07-28 | 2011-07-28 | Extraction method of fern root starch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102186302A CN102276738A (en) | 2011-07-28 | 2011-07-28 | Extraction method of fern root starch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102276738A true CN102276738A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102186302A Pending CN102276738A (en) | 2011-07-28 | 2011-07-28 | Extraction method of fern root starch |
Country Status (1)
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| CN (1) | CN102276738A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104012841A (en) * | 2014-06-23 | 2014-09-03 | 黄振忠 | Fern powder preparation method |
-
2011
- 2011-07-28 CN CN2011102186302A patent/CN102276738A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104012841A (en) * | 2014-06-23 | 2014-09-03 | 黄振忠 | Fern powder preparation method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |