CN101134766A - Method for preparing high-purity maple tannin by acer ginnala leaf - Google Patents
Method for preparing high-purity maple tannin by acer ginnala leaf Download PDFInfo
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- CN101134766A CN101134766A CNA2006100305471A CN200610030547A CN101134766A CN 101134766 A CN101134766 A CN 101134766A CN A2006100305471 A CNA2006100305471 A CN A2006100305471A CN 200610030547 A CN200610030547 A CN 200610030547A CN 101134766 A CN101134766 A CN 101134766A
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- tannin
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- eluent
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Abstract
The process of producing maple tannin with amur maple leaf includes the following steps: crushing amur maple leaf, decocting in deionized water; filtering the decoction and flowing through macroporous adsorption resin column, eluting with eluant of ethyl acetate, ethanol, propanol, isopropanol or acetone; and recovering eluant to obtain maple tannin. The present invention opens one new way of producing tannin, and producing tannin with amur maple leaf is less costly than that with gallnut.
Description
Technical field
The present invention relates to a kind of method of making tannin, relate in particular to a kind of method that adopts preparing high-purity maple tannin by acer ginnala leaf.
Background technology
Tannin can be divided into Chinese tannin and talas of tannic acid again.This class material is widely used in chemical industry now, medicine, and oil, ore dressing, industries such as process hides, annual according to incompletely statistics Chinese exports Chinese tannin can reach nearly ten thousand tons.
Amur maple (Acer ginnala maxim) is the Aceraceae plant, is distributed widely in China Huanghe valley, the middle and lower reach of Yangtze River and northeast, aboundresources.Only forest zone, Zhang Guangcai mountain range resource exploration is just found that the accumulation of the bright leaf of its Amur maple reaches 45000 tons, and Amur maple leaf regenerative power is very strong, people also do not apply it to and make on the tannin now.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of method of preparing high-purity maple tannin by acer ginnala leaf, are intended to solve the above problems;
In order to solve the problems of the technologies described above, the present invention realizes by following steps:
Acer ginnala leaf is pulverized;
Adding deionized water decocts; Temperature is between 80-100 ℃, and decocting time was at 2-3 hour; Ratio between deionized water and the acer ginnala leaf is at 6-10: between 1;
Decocting liquid is leached;
Put into the natural flow velocity of the post that macroporous adsorbent resin is housed, liquid to be extracted has flowed with till not going out; Add eluent; Described eluent can be: ethyl acetate, ethanol, propyl alcohol, Virahol or acetone; Ratio between eluent and the deionized water is at 0.2-0.4: between 1;
Reclaim eluent, get maple tannin.
Compared with prior art, the invention has the beneficial effects as follows: compare with the tannin that the traditional Chinese medicine Turkey-galls is produced, have cost advantage in price, make tannin on the source, open up new approach.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Embodiment 1
After getting the pulverizing of 100g acer ginnala leaf, adding the 1000ml deionized water decocted 2-3 hour for 80-100 ℃, decocting liquid is leached, put into post (the high 30cm of post that macroporous adsorbent resin is housed, diameter 10cm, about 200g macroporous adsorbent resin) natural flow velocity, liquid to be extracted has flowed with till not going out, add the 300ml ethanol elution, reclaim maple tannin 22g.
Embodiment 2
After getting the pulverizing of 100g acer ginnala leaf, adding the 1000ml deionized water decocted 2-3 hour for 80-100 ℃, decocting liquid is leached, put into post (the high 30cm of post that macroporous adsorbent resin is housed, diameter 10cm, about 200g macroporous adsorbent resin) natural flow velocity, liquid to be extracted has flowed with till not going out, add the 300ml ethanol elution, reclaim maple tannin 21.5g.
Embodiment 3
After getting the pulverizing of 100g acer ginnala leaf, adding the 1000ml deionized water decocted 2-3 hour for 80-100 ℃, decocting liquid is leached, put into post (the high 30cm of post that macroporous adsorbent resin is housed, diameter 10cm, about 200g macroporous adsorbent resin) natural flow velocity, liquid to be extracted has flowed with till not going out, add the 300ml ethanol elution, reclaim maple tannin 22.2g.
Embodiment 4
After getting the pulverizing of 100g acer ginnala leaf, adding the 1000ml deionized water decocted 2-3 hour, decocting liquid is leached, put into post (the high 30cm of post that macroporous adsorbent resin is housed, diameter 10cm, about 200g macroporous adsorbent resin) natural flow velocity, liquid to be extracted has flowed with till not going out, add the 300ml ethanol elution, reclaim maple tannin 22.1g.
Embodiment 5
After getting the pulverizing of 100g acer ginnala leaf, adding the 1000ml deionized water decocted 2-3 hour for 80-100 ℃, decocting liquid is leached, put into post (the high 30cm of post that macroporous adsorbent resin is housed, diameter 10cm, about 200g macroporous adsorbent resin) natural flow velocity, liquid to be extracted has flowed with till not going out, add the 300ml ethanol elution, reclaim maple tannin 22.5g.
Adopted the macroporous adsorbent resin technology in the present invention, the macroporous adsorbent resin of use and eluent all can recycle, and can reduce production costs, and meet recycling economy operation principle.
Claims (2)
1. the method for a preparing high-purity maple tannin by acer ginnala leaf, realize by following steps:
Acer ginnala leaf is pulverized (1);
Add deionized water and decoct (2);
Decocting liquid is leached (3);
Put into the natural flow velocity of the post that macroporous adsorbent resin is housed, liquid to be extracted has flowed with till not going out; Add eluent; Described eluent can be: ethyl acetate, ethanol, propyl alcohol, Virahol or acetone; Ratio between eluent and the deionized water is at 0.2-0.4: between 1 (4);
Reclaim eluent, get maple tannin (5).
2. the method for preparing high-purity maple tannin by acer ginnala leaf according to claim 1, wherein in step (2): temperature is between 80-100 ℃, and decocting time was at 2-3 hour; Ratio between deionized water and the acer ginnala leaf is at 6-10: between 1; In step (4): the ratio between eluent and the deionized water is at 0.2-0.4: between 1; The post of described macroporous adsorbent resin is: the macroporous adsorbent resin of the high 30cm of post, diameter 10cm, about 200g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100305471A CN101134766A (en) | 2006-08-30 | 2006-08-30 | Method for preparing high-purity maple tannin by acer ginnala leaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100305471A CN101134766A (en) | 2006-08-30 | 2006-08-30 | Method for preparing high-purity maple tannin by acer ginnala leaf |
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| Publication Number | Publication Date |
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| CN101134766A true CN101134766A (en) | 2008-03-05 |
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| CNA2006100305471A Pending CN101134766A (en) | 2006-08-30 | 2006-08-30 | Method for preparing high-purity maple tannin by acer ginnala leaf |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927019A (en) * | 2010-08-16 | 2010-12-29 | 叶贤忠 | Sterilizing and deodorizing agent and preparation method thereof |
| CN102020682A (en) * | 2010-11-09 | 2011-04-20 | 苏州派腾生物医药科技有限公司 | Preparation method of neuchebulagicacid |
| CN105461759A (en) * | 2015-12-15 | 2016-04-06 | 中华全国供销合作总社西安生漆涂料研究所 | Lacquer tree leaf tannin extraction method |
| CN109053826A (en) * | 2018-09-19 | 2018-12-21 | 湖南中茂生物科技有限公司 | A method of tannic acid is extracted in recycling from the acer truncatum seed dregs of rice |
-
2006
- 2006-08-30 CN CNA2006100305471A patent/CN101134766A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927019A (en) * | 2010-08-16 | 2010-12-29 | 叶贤忠 | Sterilizing and deodorizing agent and preparation method thereof |
| CN102020682A (en) * | 2010-11-09 | 2011-04-20 | 苏州派腾生物医药科技有限公司 | Preparation method of neuchebulagicacid |
| CN102020682B (en) * | 2010-11-09 | 2013-06-05 | 南京泽朗农业发展有限公司 | Preparation method of neuchebulagicacid |
| CN105461759A (en) * | 2015-12-15 | 2016-04-06 | 中华全国供销合作总社西安生漆涂料研究所 | Lacquer tree leaf tannin extraction method |
| CN105461759B (en) * | 2015-12-15 | 2018-02-13 | 中华全国供销合作总社西安生漆涂料研究所 | A kind of extracting method of Folium toxicodendri verniciflni tannin |
| CN109053826A (en) * | 2018-09-19 | 2018-12-21 | 湖南中茂生物科技有限公司 | A method of tannic acid is extracted in recycling from the acer truncatum seed dregs of rice |
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Application publication date: 20080305 |