CN101491618A - Method for separating tobacco total alkaloid from extract liquid of tobacco leftovers - Google Patents
Method for separating tobacco total alkaloid from extract liquid of tobacco leftovers Download PDFInfo
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- CN101491618A CN101491618A CNA2007100984320A CN200710098432A CN101491618A CN 101491618 A CN101491618 A CN 101491618A CN A2007100984320 A CNA2007100984320 A CN A2007100984320A CN 200710098432 A CN200710098432 A CN 200710098432A CN 101491618 A CN101491618 A CN 101491618A
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Abstract
The invention discloses a method for separating total alkaloid from traditional Chinese medicine, in particular a method for separating total alkaloid from discarded tobacco leaves extract, which belongs to the field of traditional Chinese medicines. The method comprises the following technical proposal that the discarded tobacco leaves extract is taken and filtered, the pH value of the discarded tobacco leaves extract is adjusted to be between 1 and 7; filtrate is added to a cation exchange resin column, eluted with water to remove impurities and then eluted by use of 0.5 to 15 percent acid liquid; and eluent is collected, added with alkali for neutralization and desalted so as to prepare tobacco total alkaloid. The method overcomes the deficiency that the prior art is low in extraction ratio, large in the amount of organic solvents, complex in process, incapable of mass production, and the like, and can efficiently separate high-purity tobacco total alkaloid from the discarded tobacco leaves extract.
Description
Technical field
The present invention relates to a kind of in the extraction separation method of pharmaceutically active ingredient, particularly relate to a kind of from the tobacco leftovers extracting solution method of extraction separation Nicotiana tabacum L. total alkaloids, belong to the field of Chinese medicines.
Background technology
Alkaloid is the big class basic nitrogen compound that occurring in nature extensively exists, and is many medium-height grass the effective elements of the medicines, is the class important substance that occurring in nature exists.Nicotiana tabacum L. originates from some island of U.S. state, Oceania and the South Pacific Ocean.At present find to have 66 kinds, that cultivate utilization only has 2 kinds, and promptly common Nicotiana tabacum L. (N.tabacum.L.) cries safflower tobacco and Folium Nicotianae rusticae (Nrustica L.) again.Because current smoker has reached more than several hundred million people, Nicotiana tabacum L. has become worldwide main industrial crops.In production of cigarettes, produced a large amount of tobacco leftovers, cabo etc. inevitably, caused huge waste and pollution.Now, tobacco leftovers is mainly used in extraction nicotine.Containing in the Nicotiana tabacum L. with nicotine is the total alkaloids of representative, and wherein nicotine has multiple physiologically active.Nicotine is commonly called as nicotine, belongs to the pyridine family alkaloid in the Chinese traditional medicine biology alkali, and it has very strong physiological action to the mankind, take in an amount of nicotine, can be excited spiritual, allaying tiredness, increase ability of thinking, increase work efficiency, but excessive nicotine can play inhibition and paralysis effect.Nicotine has purposes widely: (1) participates in the human body metabolism as making, and improves the natural material of peripheral nerve function, blood vessel dilating, treatment cardiovascular disease medicine.(2) be used to make highly effective pesticide, to each class pest, tag, the fumigation effect is all fine.Because it is a natural materials, its maximum characteristics are not have residual hazard, do not cause secondary pollution, do not develop immunity to drugs, and are the bioactive acid agrichemicals of preserving the ecological environment.(3) be used to make the additive of food, nutrient and healthcare products, essence and flavoring agent, cosmetics, animal feed.(4) be used for medicated cigarette odorant, manufacturing appetrol, smoking deterent and other chemical industry, biochemical reagents etc.(5) niacin can prevent that senile dementia (6) uses nicotine control grain storage pest.Therefore rationally utilize tobacco leftovers, especially find the preparation method of a Nicotiana tabacum L. total alkaloids that energy consumption is little, technology simple, pollution is little for the production of nicotine and compel and to go.
Present stage, the extraction process of Chinese traditional medicine biology alkali is ripe, according to alkaloidal physicochemical property, adopt The suitable solvent such as water, sour water, acid alcohol and alkali alcohol etc., utilize technology such as dipping, percolation, decoction, backflow, ultrasonic, enzymolysis that the alkaloids composition is extracted, extraction ratio can reach more than 90%.But because the relative amount of alkaloid in Chinese medicine lower (most content are 0.01%-1%), certainly will introduce a large amount of other drug compositions and impurity constituents during extraction, guarantee the safe and effective of last preparation, must make with extra care purification to it, be prepared into effective site even effective ingredient is used, so the refining purification technique of alkaloid valid target just seems very important.But since other multiple compositions and deposit and the interference of impurity such as starch, natural gum, pectin, phlegmatic temperament, pigment, the purification techniques of alkaloid valid target is the modernization of Chinese medicine " bottleneck " always, has had a strong impact on the requirement of modern Chinese medicine preparation to triple effect (efficient, quick-acting, long-acting), three little (dosage is little, toxicity is little, side effect little), five convenience (produce, transport, carry, store, use conveniently).
Though the method for extraction separation Chinese medicine total alkaloids is arranged in textbook and various document more, but these methods only stay in breadboard research level, majority is with after containing alkaloidal solution and crossing post, with ammoniacal liquor or NaOH eluant solution, collects behind the eluent again with the organic solvent extraction alkaloid; The resin that perhaps will go up sample is with dipping by lye, and then with organic solvent reflux, extract, alkaloid.Shortcomings such as but these methods have complex steps, and consumption of organic solvent is big, large equipment can't be realized and the alkaloid rate of transform is low, thereby be in the laboratory research level always, can not in big production, use.With leftover bits and pieces such as broken hypo-tobacco leaf, cabos is the method that raw material is produced nicotine, and what be seen in report has decocting in water, dry distilling, ion exchange or a solvent extraction, all be from Nicotiana tabacum L., extract behind the total alkaloids again through other operations after refining nicotine.All more or less there are some defectives in these methods, or complex steps, or energy consumption is big, or the technological requirement harshness, or solvent, contaminated wastewater environment etc.Having proposed a kind of up-to-date technology of extraction separation nicotine from tobacco leftovers in Chinese patent application CN95110466.7 is the spent ion exchange resin method, basic process is: with the acidic aqueous liquid after the decalcification of Nicotiana tabacum L. medical material, by the strongly acidic cation-exchange post, use the mixed alkali liquor eluting, collect eluent, by operations such as evaporation and concentration, multistage centrifugal extraction and rectifications under vacuum, promptly get the pure product of nicotine again.This method has been avoided the use of a large amount of organic solvents, has certain progressive, but still there is major defect: can find in the test that this method carries out eluting by mixed alkali liquor alkalization Nicotiana tabacum L. total alkaloids, though can improve alkaloidal purity, but because the existence of mixed alkali liquor, suppress the ionization of nicotine, reduced the water solublity of nicotine, caused the rate of transform still not high; Simultaneously, complex steps, higher to equipment requirements.So in order to adapt to market and production, need a kind of safe, low-cost, extraction separation method that yield is high.
Summary of the invention
The method that the purpose of this invention is to provide a kind of safe, low-cost, high efficiency extraction separation Nicotiana tabacum L. total alkaloids.
This goal of the invention realizes by following technology: get tobacco extract, adjust pH value 1 to 7, filter, get filtrate and be added on the cation exchange resin column, earlier with the water elution remove impurity, reuse 0.5%～15% acid solution eluting, collect eluent, add the alkali neutralization,, promptly get the Nicotiana tabacum L. total alkaloids through desalting processing.
In above-mentioned technical process, after the extracting solution that will contain total alkaloids transfers to proper acidity, alkaloid ionization becomes cation, nonbasic substances is not ionized, after extracting solution was crossed cation exchange resin column, the hydrion on ionized alkaloid organic ion and the resin column exchanged and is adsorbed on the resin column securely.Here the pH value of extracting solution is unsuitable too high or too low, if too high, it is neutral or alkaline that extracting solution is, and alkaloid can not ionization, also just can not finish the exchange process on the resin; If cross lowly, the hydrogen ion concentration in the extracting solution is too high, has hindered the hydrion on the resin column and has dissociated, and can not finish the resins exchange process well equally, thereby the pH value of finding to adjust extracting solution in the experiment is 1 to 7 to be proper.During with water elution, use be deionized water, to guarantee not introducing new ion interference, those just are not easy to be got off by water elution by the nonbasic substances of resin absorption during eluting, thus be attracted to resin column on the alkaloid organic ion separated.After this acid solution that adds higher concentration is again carried out eluting, because the hydrogen ion concentration in the acid solution is very high at this moment, will combine with resin competitively, thereby the alkaloid organic ion that will be adsorbed on the resin column exchanges, be dissolved in the sour eluent, flow out resin column, finish alkaloidal enrichment process.Afterwards, in eluent, add alkali and neutralize unnecessary acid,, can obtain Nicotiana tabacum L. total alkaloids that purity is higher again through conventional desalting processing.
This technical process compared with prior art, technological process is not simple, not with an organic solvent, residual, the alkaloid rate of transform height of no resin monomer composition; Its important contribution also is, has broken ion-exchange capacity order rule, that is: Ca that traditional theory is thought
2+＞K
+≈ NH
4 +＞Na
+＞H
+Just under the influence of this traditional theory, in the ionic exchange resin of Nicotiana tabacum L. total alkaloids all is that alkali liquor or ammoniacal liquor carry out eluting, perhaps earlier with in the alkali liquor and the free in theory alkaloid of resin column reuse organic solvent reflux, extract,, and the effect in the practical application is very undesirable and be unsuitable for big production.In technical scheme of the present invention, though hydrionic exchange capacity is the most weak, but by improving hydrionic concentration in the sour eluent, thereby offset the weak shortcoming of its exchange capacity, simultaneously under acid condition, the alkaloid that exchanges is dissolved in the acid solution rapidly, and is rushed out pillar, guarantee alkaloidal elute effect thus.And, carry out eluting with acid solution, in eluting, cation exchange resin column is regenerated, thereby can recycle, reduced the process of regenerating resin post behind the alkali liquor eluting, reduced cost.Technology of the present invention has broken through in the prior art traditional view and the technical process with the alkali liquor eluting fully, obtained beyond thought effect, improved the yield of Nicotiana tabacum L. total alkaloids greatly, making cation exchange resin be used for refining separate tobacco total alkaloids in commercial production becomes possibility.
Based on above-mentioned technical process, the inventor has carried out further research again, and the parameter of each step of refinement filters out optimal case, and particular content is as follows:
1, the pH value scope of adjustment medicinal liquid is preferably 2 to 5 before the upper prop, and effect is more obvious.
2, used cation exchange resin can be macroporous type or gel-type strong acid ion exchange resin, can according to circumstances be processed in Hydrogen, sodium type or the ammonium type any when reality is used.
3, the post of used cation exchange resin column footpath there is no a fixed pattern with the ratio of post height, but considers to produce reality, post footpath: post height=1: 5～can obtain best effect at 1: 10 o'clock.
4, the liquor strength to sample on the resin column is that every ml is equivalent to crude drug 0.1～3g, and concrete condition can determine that if adopt modes such as dipping, percolation, the medicinal liquid that obtains will be rarer according to the pre-treatment mode of medicinal liquid; And if modes such as reflux, extract,, decoction are especially passed through concentration, the concentration of medicinal liquid will be bigger, but so long as in this scope, can both realize sample.Simultaneously, last sample speed is also adjusted according to the concentration of medicinal liquid in good time, satisfies substantially at 0.5～5 times of column volume/hour get final product.
5, go up sample loading mode and be typically chosen in from the post upper end upward sample, medicinal liquid flows through whole pillar by gravity flow power; The inventor finds, if sample on the adverse current, be about to medicinal liquid sample from the pillar bottom, by certain pressure, make medicinal liquid fill with whole pillar, thisly go up the maximum exchange efficient that sample loading mode can be brought into play pillar, when also having avoided from the upper end sample since the alkaloid exchange not exclusively take place shift to an earlier date penetration problem.This point also is the creationary discovery of inventor.
6, the used acid solution of eluting is preferably hydrochloric acid solution or sulfuric acid solution, and its concentration all is preferably 3%～6%.
7, the flow velocity of eluent is unsuitable too fast or slow excessively during eluting, if too fast, then the exchange of hydrion and alkaloid organic ion is insufficient, and acid solution is wasted more; If cross slowly, the alkaloid organic ion that then disintegrates down may adsorb back on the resin column again, influences elution efficiency.Experiment finds, elution speed remains on 2～6 times of column volumes/hour be advisable.Further preferred, elution speed remains on 4～6 times of column volumes/hour best.
8, the inventor also finds, improves elution efficiency if think more the highland, can not carry out the acid solution eluting immediately after the water elution remove impurity, but is full of acid solution earlier in resin column and leaves standstill more than 2 hours, generally need not surpass 12 hours, carry out eluting again.Through after leaving standstill, a large amount of alkaloid organic ions are exchanged by hydrion, perhaps are in half absorption, half dissociated state, and carry out eluting this moment, and the alkaloid concentration effect is obvious, and elution efficiency obviously improves.
9, in order further to improve elution efficiency, can also in the acid solution that eluting is used, add small amount of N H
4Cl, NaCl or CaCl
2, addition is unsuitable very few or too much, if very few, does not then have effect; If then easily saltouing because of salinity is too high influences the dissolubility of alkaloid organic ion too much.Experiment finds, in the eluent with NH
4 +, Na
+Or Ca
2+Be good when concentration is 0.1～1mol/L, further preferred, NH
4 +, Na
+Or Ca
2+Concentration best when being 0.1～0.3mol/L.
10, said desalination process can be the desalination method that dialysis desalination, membrane filtration are crossed desalination and other various medicine biological field routines in the technology, these methods comparative maturity all at present, and can channelization production.
11, in this method said tobacco leftovers extracting solution can be by dipping, percolation, ultrasonic, microwave or any mode in decocting extract and make, and the solvent that extracts can be in water, sour water, alcoholic solution, the acid ethanol solution any, but all belongs to the conventional extracting method of the present field of Chinese medicines.Distinctive points is, if make with dipping or percolation method, can directly go up sample; Obtain if extract, also will pass through steps such as precipitate with ethanol, filtration or centrifugal remove impurity, to guarantee the smooth of sample with additive method.
Need to prove that above-mentioned preferred technical parameter can carry out combination in any with basic technology, and all can obtain good effect according to the needs of practical situation, the technical solution problem reaches purpose of the present invention.
Below by the contrast experiment advantage of the present invention is described.
One, experimental program:
Get tobacco leftovers 1500g, the sour water that adds pH=4 decocts 2 times, and each 10 times of amounts decocted 2 hours, merged decoction liquor, and centrifugal, filtrate is diluted to 3000ml and regulates pH=3, is divided into three parts, handles according to the following steps respectively:
1. according to prior art, get said extracted liquid 1000ml, last cation exchange resin (001 * 7, Hydrogen, blade diameter length ratio 1: 5), reuse mixed alkali liquor (total alkali 6%, wherein NH
3: NaOH=4: 1) eluting, elution speed be 5 times of column volumes/hour, check negatively to alkaloid, collect eluent, transfer to neutrality, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
2. according to technology of the present invention, get said extracted liquid 1000ml, last cation exchange resin (001 * 7, Hydrogen, blade diameter length ratio 1: 5), is washed till with deionized water that to outpour liquid colourless, reuse 3% hydrochloric acid solution eluting, elution speed be 5 times of column volumes/hour, negative to the alkaloid inspection, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
3. according to technology of the present invention, get said extracted liquid 1000ml, last cation exchange resin (001 * 7, Hydrogen, blade diameter length ratio 1: 8), sample on the adverse current, be washed till with deionized water that to outpour liquid colourless, 3% hydrochloric acid solution of NaCl that adds 0.1mol/L left standstill 2 hours to full post, the above-mentioned solution of reuse with 5 times of column volumes/hour the speed eluting, negative to the alkaloid inspection, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Two, the result calculates: distinguish the weight of three kinds of technology gained of weighing Nicotiana tabacum L. total alkaloids, and be divided by with the medical material amount, get the yield of total alkaloids; With acid-base titrations three kinds of method gained total alkaloidss are carried out assay, calculate the purity of total alkaloids.
Three, result's contrast, see the following form:
The effect assessment table of three kinds of technologies
| Technology 1 | Technology 2 | Technology 3 | |
| Yield | 2.7％ | 3.1％ | 3.3％ |
| Purity | 68％ | 85％ | 89％ |
| Cost | The alkali liquor consumption is very big, and elution efficiency is low; The final cost height | The elution efficiency height, the acid solution consumption is few, and cost is low | The consumption of acid eluent reduces, and cost is lower |
| Time | Cycle is long, needs 8 hours at least | Cycle is short, only needs 5 hours | Cycle is short, only needs 4.5 hours |
| Complexity | Elution time is long, and efficient is low; Removing needs normal pretreatment resin column, also needs independent regenerating resin at last, has increased operation and cost | Process is simple, only needs normal pretreatment resin column, the resin column of also having regenerated when pickling is taken off | Process is simple, only needs normal pretreatment resin column, the resin column of also having regenerated when pickling is taken off |
By above comparing result as seen, technical scheme of the present invention can solve deficiency of the prior art, and improve significantly product quality, reduce cost, improve producing feasibility, the present invention has reached goal of the invention.
The specific embodiment
Embodiment 1:
Get tobacco leftovers 1000g, decoct with water 2 times, each 10 times of amounts decocted 2 hours, merged decoction liquor, centrifugal, regulate pH=3, centrifugal, supernatant is with 4 times of column volumes/hour by cation exchange resin (001 * 7, Hydrogen, blade diameter length ratio 1: 8), being washed to effluent does not have color, reuse 15% hydrochloric acid solution eluting, elution speed be 2 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 2:
Get tobacco leftovers 1000g, the sour water percolation that adds pH=5, merge the percolate thin up to 10000ml, centrifugal, regulate pH=1, centrifugal, supernatant is so that 5 times of column volumes/hour (Doulex 50 by cation exchange resin, the sodium type, blade diameter length ratio 1: 5), being washed to effluent does not have color, reuse 5% hydrochloric acid solution eluting, elution speed be 4 times of column volumes/hour, soaked behind 2 times of column volumes of eluting 5 hours, be eluted to alkaloid again and check negative (effluent drips 10% silico-tungstic acid does not have precipitation), collect eluent, be neutralized to neutrality with calcium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 3:
Get tobacco leftovers 5kg, add 70% ethanol ultrasonic extraction twice, add 5 times of amounts at every turn, ultrasonic 0.5 hour, merge extractive liquid,, centrifugal, reclaim ethanol, add water to 5000ml, regulate pH=2, centrifugal, supernatant is with 2 times of column volumes/hour by last cation exchange resin (001 * 10, the sodium type, blade diameter length ratio 1: 7), being washed to effluent does not have color, reuse 1% hydrochloric acid solution (containing 1% sodium chloride) eluting, elution speed be 5 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 4:
Get tobacco leftovers 10kg, decoct with water 2 times, each 10 times of amounts decocted 2 hours, merge decoction liquor, filter, it is 1.1 (60 ℃) that filtrate is concentrated into relative density, and adding ethanol to concentration is 70%, leave standstill, supernatant reclaims ethanol, adds water to 3000ml, regulates pH=4, centrifugal, supernatant is with 3 times of column volumes/hour by last cation exchange resin (AmberliteIR--120, ammonia type, blade diameter length ratio 1: 9), be washed to effluent and do not have color, reuse 10% hydrochloric acid solution eluting, elution speed be 6 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 5:
Get tobacco leftovers 10kg, decoct with water 2 times, each 10 times of amounts decocted 2 hours, merge decoction liquor, filter, it is 1.1 (60 ℃) that filtrate is concentrated into relative density, and adding ethanol to concentration is 70%, leave standstill, supernatant reclaims ethanol, adds water to 5000ml, regulates pH=5, centrifugal, supernatant is with 3 times of column volumes/hour by last cation exchange resin (D001 * 4, Hydrogen, blade diameter length ratio 1: 10), be washed to effluent and do not have color, reuse 3% hydrochloric acid solution eluting, elution speed be 3 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 6:
Get tobacco leftovers 2000g, the hydrochloric acid solution that adds pH=3, microwave extraction 2 times adds 5 times of volume microwave extractioies 0.5 hour at every turn, filters, the filtrate thin up is to 1600ml, regulate pH=6, centrifugal, supernatant is so that 2 times of column volumes/hour (Doulex 50 by last cation exchange resin, Hydrogen, blade diameter length ratio 1: 6), being washed to effluent does not have color, reuse 2% hydrochloric acid solution (ammonia chloride that contains 0.2mol/L) eluting, elution speed be 5 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 7:
Get tobacco leftovers 10kg, decoct with water 2 times, each 10 times of amounts decocted 2 hours, merge decoction liquor, filter, it is 1.1 (60 ℃) that filtrate is concentrated into relative density, and adding ethanol to concentration is 70%, leave standstill, supernatant reclaims ethanol, adds water to 4000ml, regulates pH=4, centrifugal, supernatant is with 0.5 times of column volume/hour by last cation exchange resin (AmberliteIR--120, Hydrogen, blade diameter length ratio 1: 6), be washed to effluent and do not have color, reuse 0.5% sulfuric acid solution (sodium chloride that contains 1mol/L) eluting, elution speed be 5 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 8:
Get tobacco leftovers 10kg, decoct with water 2 times, each 10 times of amounts decocted 2 hours, merge decoction liquor, filter, it is 1.1 (60 ℃) that filtrate is concentrated into relative density, and adding ethanol to concentration is 70%, leave standstill, supernatant reclaims ethanol, adds water to 10000ml, regulates pH=3, centrifugal, supernatant is with 3 times of column volumes/hour by last cation exchange resin (001 * 5, Hydrogen, blade diameter length ratio 1: 8), be washed to effluent and do not have color, reuse 2% hydrochloric acid solution (calcium chloride that contains 0.3mol/L) eluting, elution speed be 6 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Embodiment 9:
Get tobacco leftovers 1000g, decoct with water 2 times, each 10 times of amounts decocted 2 hours, merge decoction liquor, filter, it is 1.1 (60 ℃) that filtrate is concentrated into relative density, and adding ethanol to concentration is 70%, leave standstill, supernatant reclaims ethanol, adds water to 1000ml, regulates pH=3, centrifugal, supernatant is with 3 times of column volumes/hour by last cation exchange resin (Doulex 50, Hydrogen, blade diameter length ratio 1: 8), be washed to effluent and do not have color, reuse 4% sulfuric acid solution eluting, elution speed be 4 times of column volumes/hour, check negative (effluent drips 10% silico-tungstic acid does not have precipitation) to alkaloid, collect eluent, be neutralized to neutrality with sodium hydroxide, desalination, the filtrate concentrate drying gets the Nicotiana tabacum L. total alkaloids.
Claims (13)
1, a kind of from the tobacco leftovers extracting solution method of separate tobacco total alkaloids, it is characterized in that this method is: get tobacco extract, adjust pH value 1 to 7, filter, get filtrate and be added on the cation exchange resin column, earlier with the water elution remove impurity, reuse 0.5%～15% acid solution eluting is collected eluent, adds the alkali neutralization, through desalting processing, promptly get the Nicotiana tabacum L. total alkaloids.
2, the method for separate tobacco total alkaloids as claimed in claim 1 is characterized in that the preceding pH value scope of adjusting medicinal liquid of upper prop is 2 to 5.
3, the method for separate tobacco total alkaloids as claimed in claim 1 is characterized in that used cation exchange resin can be macroporous type or gel-type strong acid ion exchange resin.
4, the method for separate tobacco total alkaloids as claimed in claim 3 is characterized in that the post footpath of used cation exchange resin column: post height=1: 5～1: 10.
5, the method for separate tobacco total alkaloids as claimed in claim 1 is characterized in that in this method that the concentration of sample medicinal liquid is that every ml is equivalent to crude drug 0.1～3g, last sample speed be 0.5～5 times of column volume/hour.
6, the method for separate tobacco total alkaloids as claimed in claim 5 is characterized in that sample loading mode is preferably sample on the adverse current.
7, the method for separate tobacco total alkaloids as claimed in claim 1 is characterized in that eluting is used in this method acid solution is 3%～6% hydrochloric acid solution or 3%～6% sulfuric acid solution.
8, the method for separate tobacco total alkaloids as claimed in claim 7, it is characterized in that elution speed be 2～6 times of column volumes/hour.
9, the method for separate tobacco total alkaloids as claimed in claim 8, it is characterized in that elution speed be 4～6 times of column volumes/hour.
10, the method for separate tobacco total alkaloids as claimed in claim 1 is characterized in that after the water elution remove impurity, can be full of eluting earlier with acid solution and left standstill 2～12 hours in resin column, carries out eluting again.
11, the method for separate tobacco total alkaloids as claimed in claim 7 is characterized in that can also adding in the acid solution that eluting uses the NH of 0.1～1mol/L
4Cl, NaCl or CaCl
2
12, the method for separate tobacco total alkaloids as claimed in claim 11 is characterized in that the concentration of salt is preferably 0.1～0.3mol/L in the acid solution.
13, the Nicotiana tabacum L. total alkaloids of any one described method preparation among the claim 1-12.
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|---|---|---|---|
| CNA2007100984320A CN101491618A (en) | 2007-04-18 | 2007-04-18 | Method for separating tobacco total alkaloid from extract liquid of tobacco leftovers |
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|---|---|---|---|
| CNA2007100984320A CN101491618A (en) | 2007-04-18 | 2007-04-18 | Method for separating tobacco total alkaloid from extract liquid of tobacco leftovers |
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| CN105324040A (en) * | 2013-05-17 | 2016-02-10 | R.J.雷诺兹烟草公司 | Tobacco-derived protein compositions |
| CN106551421A (en) * | 2016-11-29 | 2017-04-05 | 湖北中烟工业有限责任公司 | A kind of preparation method of low alkaloid burley tobaccos extract |
| CN111039346A (en) * | 2020-01-07 | 2020-04-21 | 湖北中烟工业有限责任公司 | Method for treating tobacco sheet stem liquid |
| CN114940672A (en) * | 2022-05-27 | 2022-08-26 | 云南中烟工业有限责任公司 | Preparation method of tobacco alkaloid component |
| CN115399498A (en) * | 2022-08-29 | 2022-11-29 | 河北中烟工业有限责任公司 | Tobacco extract, preparation method thereof and tobacco product |
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- 2007-04-18 CN CNA2007100984320A patent/CN101491618A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105324040A (en) * | 2013-05-17 | 2016-02-10 | R.J.雷诺兹烟草公司 | Tobacco-derived protein compositions |
| CN105324040B (en) * | 2013-05-17 | 2019-02-26 | R.J.雷诺兹烟草公司 | Protein compositions derived from tobacco |
| CN106551421A (en) * | 2016-11-29 | 2017-04-05 | 湖北中烟工业有限责任公司 | A kind of preparation method of low alkaloid burley tobaccos extract |
| CN106551421B (en) * | 2016-11-29 | 2018-02-02 | 湖北中烟工业有限责任公司 | A kind of preparation method of low alkaloid burley tobaccos extract |
| CN111039346A (en) * | 2020-01-07 | 2020-04-21 | 湖北中烟工业有限责任公司 | Method for treating tobacco sheet stem liquid |
| CN114940672A (en) * | 2022-05-27 | 2022-08-26 | 云南中烟工业有限责任公司 | Preparation method of tobacco alkaloid component |
| CN114940672B (en) * | 2022-05-27 | 2023-11-17 | 云南中烟工业有限责任公司 | Preparation method of tobacco alkaloid component |
| CN115399498A (en) * | 2022-08-29 | 2022-11-29 | 河北中烟工业有限责任公司 | Tobacco extract, preparation method thereof and tobacco product |
| CN115399498B (en) * | 2022-08-29 | 2023-06-27 | 河北中烟工业有限责任公司 | Tobacco extract, preparation method thereof and tobacco product |
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