CN102173490B - Flocculant formula used for stevioside extracting solution and use method thereof - Google Patents
Flocculant formula used for stevioside extracting solution and use method thereof Download PDFInfo
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- CN102173490B CN102173490B CN2011100538364A CN201110053836A CN102173490B CN 102173490 B CN102173490 B CN 102173490B CN 2011100538364 A CN2011100538364 A CN 2011100538364A CN 201110053836 A CN201110053836 A CN 201110053836A CN 102173490 B CN102173490 B CN 102173490B
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- flocculant
- flocculating agent
- extracting solution
- stevioside
- agent
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Abstract
The invention relates to a flocculant formula used for a stevioside extracting solution and a use method thereof. The flocculant formula comprises a flocculant A and a flocculant B, wherein the raw material of the flocculant A is polyacrylamide; the weight volume ratio of the added polyacrylamide to the stevioside extracting solution is 1/100000-3/100000; the raw material of the flocculant B is ferrous sulfate; the weight volume ratio of the added ferrous sulfate to the stevioside extracting solution is 1/100-3/100; when the flocculant A and the flocculant B are used, the flocculants are firstly diluted with water according to the addition amount; the concentration of the diluted flocculant A is 0.1-0.15%; and the flocculant B is dissolved and diluted into a saturated solution with the concentration of 30-50%. The flocculant formula and the use method have the following beneficial effects: fewer flocculants are used; the method is simple and easy to operate; the cost is saved; and the flocculation effect is good.
Description
Technical field
The present invention relates to the flocculation technique field that stevioside extracts, be specifically related to a kind of stevioside extracting solution with flocculation agent prescription and method of use.
Background technology
Flocculation is one of important procedure of stevioside extraction, and it can make and remove macromole impurity in the stevioside leaching process, improves the purity of stevioside.
The flocculation agent of existing stevioside all is inorganic salt both at home and abroad, and that the most frequently used is FeSO
4, FeCl
2, Fe
2(SO
4)
3, FeCl
3, AlK (SO
4)
212H
2O etc.; This type of inorganic salt flocculation agent can not make it precipitate fully to the small molecules pectic substance in the sweet Stevia extracting solution; Influence the purity of stevioside, also influence the adsorptive power and the regenerative power of polymeric adsorbent, this type of flocculation agent precipitates with liming; Strengthen the load of desalination resin, increased production cost.
Summary of the invention
Defective and deficiency to flocculation process in the above-mentioned existing stevioside production; The objective of the invention is to; According to flocculation present situation and characteristics in the stevioside extraction a kind of flocculation agent prescription that is more suitable for the flocculation of stevioside extracting solution is provided; New flocculation agent prescription is the ratio that benchmark is confirmed add-on with the stevioside extracting solution, and takes to dilute earlier the method for use that afterwards adds.This flocculation agent flocculence is strong, and flocculating effect is good, does not influence polymeric adsorbent adsorptive power and regenerative power.
For realizing that the technical scheme that foregoing invention is taked is: a kind of stevioside extracting solution is filled a prescription with flocculation agent; It is characterized in that; The flocculation agent prescription comprises flocculating agent A and flocculating agent B, and the weight ratio of the add-on of SEPIGEL 305 and stevioside extracting solution is 1/100000～3/100000; The raw material of flocculating agent B is a ferrous sulfate, and the weight ratio of the add-on of ferrous sulfate and stevioside extracting solution is 0. 1/100～0. 3/100.
A kind of stevioside extracting solution is with the method for use of flocculation agent prescription; It is characterized in that, when using flocculating agent A and flocculating agent B, according to add-on elder generation dilute with water; Concentration after the flocculating agent A dilution is 0. 1%～0. 15%, and it is 30%～50% saturated solution that the flocculating agent B dissolved dilution becomes concentration.
The beneficial effect that the present invention produced is: the flocculation agent consumption is few, and method is simple, and easy handling is saved cost, and flocculating effect is good.
Embodiment
Below the present invention is described further: a kind of stevioside extracting solution comprises flocculating agent A and flocculating agent B with the flocculation agent prescription; The raw material of flocculating agent A is a SEPIGEL 305, and the optimum weight ratio of the add-on of SEPIGEL 305 and stevioside extracting solution is 2/100000; The raw material of flocculating agent B is a ferrous sulfate, and the optimum weight ratio of the add-on of ferrous sulfate and stevioside extracting solution is 0. 2/100.
A kind of stevioside extracting solution with the method for use of flocculation agent prescription is: when using flocculating agent A with flocculating agent B, according to add-on elder generation dilute with water, the concentration after flocculating agent A is diluted is 0. 12%, and it is 40% saturated solution that the flocculating agent B dissolved dilution becomes concentration.
When using flocculating agent A with flocculating agent B, add flocculating agent A earlier, add flocculating agent B again, the limit adds, stir on the limit, fully stirred 30 minutes, leave standstill 10 minutes then after, inject the flame filter press filtration.
The present invention mainly comprises flocculation agent raw material, usage ratio and method of use.Flocculation agent is dissolved into solution according to add-on is first with flocculation agent before use, and it is back subsequent use that macromolecular chain is fully stretched.The dissolving operation will be stirred in containers such as plastics, pottery, stainless steel and carried out.Mixing speed generally should be controlled at 50-250 rev/min, should not be too fast.When adding flocculant solution for the stevioside extracting solution, should avoid the intensive mechanical stirring as far as possible, when carrying flocculant solution, it is thick that pipeline is wanted, and becoming head and arm will lack, and transferpump is preferably selected Mono pump or surge pump for use, and does not select impeller pump for use.Add flocculation agent while stirring for then the stevioside extracting solution, adding finishes, and the back is abundant stirred 30 minutes, made flocculation agent and extracting solution thorough mixing, left standstill then and injected the flame filter press filtration after 10 minutes.
Claims (1)
1. a stevioside extracting solution is with the method for use of flocculation agent; It is characterized in that; Flocculation agent uses flocculating agent A and flocculating agent B, and the raw material of flocculating agent A is a SEPIGEL 305, and the weight ratio of the add-on of SEPIGEL 305 and stevioside extracting solution is 1/100000～3/100000; The raw material of flocculating agent B is a ferrous sulfate, and the weight ratio of the add-on of ferrous sulfate and stevioside extracting solution is 0. 1/100～0. 3/100; When using flocculating agent A with flocculating agent B, according to add-on elder generation dilute with water, the concentration after flocculating agent A is diluted is 0. 1%～0. 15%, and it is 30%～50% saturated solution that the flocculating agent B dissolved dilution becomes concentration; When using flocculating agent A with flocculating agent B, add flocculating agent A earlier, add flocculating agent B again, the limit adds, stir on the limit, leave standstill 10 minutes then after, inject the flame filter press filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100538364A CN102173490B (en) | 2011-03-07 | 2011-03-07 | Flocculant formula used for stevioside extracting solution and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100538364A CN102173490B (en) | 2011-03-07 | 2011-03-07 | Flocculant formula used for stevioside extracting solution and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102173490A CN102173490A (en) | 2011-09-07 |
| CN102173490B true CN102173490B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100538364A Expired - Fee Related CN102173490B (en) | 2011-03-07 | 2011-03-07 | Flocculant formula used for stevioside extracting solution and use method thereof |
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| CN (1) | CN102173490B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977163B (en) * | 2012-12-17 | 2015-07-22 | 晨光生物科技集团股份有限公司 | Industrialized preparation method of stevioside |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425622C (en) * | 2006-09-28 | 2008-10-15 | 青岛明月海藻集团有限公司 | Process of comprehensive utilization sea-tangle for extracting fucoidin |
| EP2236630A1 (en) * | 2009-04-02 | 2010-10-06 | Süd-Chemie Ag | Method for purification of crude sugar juices |
| CN101830996B (en) * | 2010-04-21 | 2012-01-04 | 江南大学 | Method for separating and purifying blue algae polysaccharide |
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2011
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| CN102173490A (en) | 2011-09-07 |
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