CN102260303A - Novel technology for extracting stevioside - Google Patents
Novel technology for extracting stevioside Download PDFInfo
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- CN102260303A CN102260303A CN2010101851347A CN201010185134A CN102260303A CN 102260303 A CN102260303 A CN 102260303A CN 2010101851347 A CN2010101851347 A CN 2010101851347A CN 201010185134 A CN201010185134 A CN 201010185134A CN 102260303 A CN102260303 A CN 102260303A
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- stevioside
- water
- lime
- folium chrysanthemi
- extraction
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Abstract
The invention discloses a novel technology for extracting stevioside. By adding a safe chemical in water as a solvent, the problem of sterilization in the extracting process is solved, and the subsequent technology of extracting stevioside is improved. Compared with the traditional sterilization method, the technology for extracting stevioside disclosed in the invention is more safe, more long-acting and cheaper, and is easier to be applied in the actual production of the factory.
Description
Affiliated technical field
The present invention relates to a kind of extracting process of Steviosides, sterilization and extraction liquid in especially can fine solution extraction process contain the how difficult filtering problem of leaf slag.
Background technology
At present, Steviosides mainly is that water or hot water extract glucoside as solvent from Folium Chrysanthemi, use water as solvent through extraction repeatedly have extraction fully, low, the glucoside of energy consumption decrease little, and simple to operate, advantage such as production cost is low.But, owing to contain the organic composition of non-glucoside in the Folium Chrysanthemi raw material, pigment, and a lot of inorganic salt impurity, having a lot of useless compositions also to be extracted together by water in extraction process is blended in the extraction liquid, make the extraction liquid color be furvous, and there is the leaf slag of part to sneak into wherein, can not directly use filter press, and it is topmost still because Folium Chrysanthemi is a kind of farm crop of peasant household's plantation, before entering factory, do not have through sterilising treatment, and the extraction process of factory's each batch leaf was generally 4-8 hour, to such an extent as to grow a lot of bacteriums in water extraction process, too much microbial reproduction will directly cause the part glucoside to be degraded and influence the process for processing of postorder.
Summary of the invention
For overcoming above-mentioned deficiency, the invention provides a kind of method that extracts Steviosides, present method can solve the sterilization problem in the extraction process, and the extraction liquid that obtains with present method need not flocculation sediment and can directly use the pressure filter press filtration.
The technical solution adopted for the present invention to solve the technical problems is: with oversaturated lime (for taking all factors into consideration of economy and effect, concentration is usually at 0.3-3%) aqueous solution carries out the extraction of Steviosides to Folium Chrysanthemi as solvent, calcium hydroxide ionization in water goes out hydroxide ion, make extraction liquid pH more than 10, thereby reach the purpose that suppresses kill bacteria by the breeding of very alkaline water environment bacteria growing inhibiting, experimental data shows that present method can kill the bacterium more than 99%, because it is very slow that pH changes, have only after the calcium hydroxide in the extraction liquid has absorbed carbon dioxide in air just to descend to some extent, so the extraction liquid that obtains is in long-time (above 24 hours) state of antibacterial sterilization.Calcium hydroxide also has the effect of flocculate and clarify, and the extraction liquid that obtains can not add flocculation agent in addition directly by the pressure filter press filtration.
The invention has the beneficial effects as follows: in the whole extraction process of Steviosides, be to be in antibacterial sterilizing state before the flocculation sediment always, extraction liquid has been played one long " fresh-keeping " anti-rotten effect, lime is a kind of material of cheapness of easy acquisition, the sterilization cost is low, and the extraction liquid that obtains is more clarified than traditional method, reduces organic impurity content in the waste water, reduce cost for wastewater treatment, lime is harmful, long-acting, the economic sterilant of a kind of safety non-toxic.In factory's actual production, implement easily.
Claims (6)
1. a novel extraction technology of stevioside adds in the water as sterilant with unslaked lime or white lime, and concentration is usually at 0.3-3%, and controlling concn is according to actual needs made glucoside composition in the solvent extraction Folium Chrysanthemi with liming.
2. the method for a kind of novel extraction technology of stevioside of employing according to claim 1 is characterized in that: the water that soaks Folium Chrysanthemi is liming, its pH 〉=10.
3. the method for a kind of novel extraction technology of stevioside of employing according to claim 1 is characterized in that: the water that soaks Folium Chrysanthemi is liming, and used lime is calcium oxide or calcium hydroxide, purity 〉=50%.
4. the method for a kind of novel extraction technology of stevioside of employing according to claim 1 is characterized in that: the water that soaks Folium Chrysanthemi is liming, and used lime is calcium oxide or calcium hydroxide, adds concentration and is 0.3-3% with the water ratio.
5. the method for a kind of novel extraction technology of stevioside of employing according to claim 1 is characterized in that: unslaked lime should add water earlier and make to contact with Folium Chrysanthemi behind the liming again and soak extraction.
6. the method for a kind of novel extraction technology of stevioside of employing according to claim 1, it is characterized in that: white lime can directly be added to discharge water in the Folium Chrysanthemi again and stir extraction together, be added to stirring extraction together in the Folium Chrysanthemi after also can making lime slurry, perhaps earlier lime made certain density calcium hydroxide suspension liquid and soak extraction together by pipe-line transportation and Folium Chrysanthemi again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101851347A CN102260303A (en) | 2010-05-28 | 2010-05-28 | Novel technology for extracting stevioside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101851347A CN102260303A (en) | 2010-05-28 | 2010-05-28 | Novel technology for extracting stevioside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102260303A true CN102260303A (en) | 2011-11-30 |
Family
ID=45007163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101851347A Pending CN102260303A (en) | 2010-05-28 | 2010-05-28 | Novel technology for extracting stevioside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102260303A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003206A (en) * | 2017-11-29 | 2018-05-08 | 蚌埠市华东生物科技有限公司 | A kind of soaking technology using STEVIA REBAUDIANA extraction steviol glycoside |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599403A (en) * | 1985-10-07 | 1986-07-08 | Harold Levy | Method for recovery of stevioside |
| CN101921299A (en) * | 2009-06-12 | 2010-12-22 | 夏京 | Novel extraction technology of stevioside |
-
2010
- 2010-05-28 CN CN2010101851347A patent/CN102260303A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599403A (en) * | 1985-10-07 | 1986-07-08 | Harold Levy | Method for recovery of stevioside |
| CN101921299A (en) * | 2009-06-12 | 2010-12-22 | 夏京 | Novel extraction technology of stevioside |
Non-Patent Citations (1)
| Title |
|---|
| 张雪颖，等: "甜叶菊水提取液的絮凝研究", 《现代食品科技》, vol. 23, no. 2, 31 December 2006 (2006-12-31), pages 8 - 10 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003206A (en) * | 2017-11-29 | 2018-05-08 | 蚌埠市华东生物科技有限公司 | A kind of soaking technology using STEVIA REBAUDIANA extraction steviol glycoside |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111130 |