CN102523790B - Preparation method of magnetic powder anti-counterfeiting tobacco seed pellets, seed pellets and detection method of seed pellets - Google Patents
Preparation method of magnetic powder anti-counterfeiting tobacco seed pellets, seed pellets and detection method of seed pellets Download PDFInfo
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Abstract
The invention provides a preparation method of magnetic powder anti-counterfeiting tobacco seed pellets. According to the method, first seed coating agents are firstly coated on tobacco bare seeds for forming seed pellets, and then, second seed coating agents are mixed with a certain amount of magnetic powder to be coated into the seed pellets. The tobacco seeds obtained by the method have two layers of structures, the inner layer structure near the bare seeds does not contain magnetic powder, and the tobacco seed pellets can be identified through the magnetic materials. The preparation method has the advantages that simple regulation is carried out on the basis that the original pelleting process flow is not changed, the equipment updating is not needed, and the anti-counterfeiting cost is low. The tobacco seed pellets with the anti-counterfeiting function have no difference from the ordinary tobacco seed pellets in appearance, and the magnetic characteristics can be shown only under the conditions of specific detection steps and detection materials. The method provides the simple and reliable anti-counterfeiting technology for the tobacco seeds, and the protection for the seed quality, tobacco companies and the seed user benefits is enhanced.
Description
Technical field
The present invention relates to a kind of seed anti-counterfeiting technology, be specifically related to a kind of preparation method of anti-counterfeiting tobacco pelleted seed prepared from magnetic powder, also relate to the anti-counterfeiting tobacco pelleted seed of the method acquisition and differentiate the method for this false proof seed.
Background technology
Tobacco occupies critical role in national economy, but tobacco seed often faces the situation of being palmed off by lawless person, and this brings very big harm to leaf tobacco production and tobacco grower.False proof about seed, what plant at present that industry generally uses is all anti-counterfeit package technology.Seed packaging is the direct carrier of seed sale, so the false proof Seed enterprises that also naturally becomes of seed packaging hits fake and forged, to safeguard Seed Market normal order, protection number one and legitimate rights and interests comparatively direct, effective solution.But mixing the genuine with the fictitious and the confusion of anti-fake product itself of packaging industry, makes Seed enterprises hard to guard against, also allow ordinary people be difficult to the true and false of identification seed.And for also less the appearing in the newspapers of anti-counterfeiting technology of seed itself.
Seed-pelleting has been this utmost point small-sized seed of the technology of generally applying, especially tobacco at present, and its Pelleting processing technology is very ripe, also mostly adopts pelleted seed to sow in production.
Chinese patent CN1759648A provides a kind of magnetic capsuled seed and magnetic seed coating medicine and magnetization processing method; the method is specifically related to the magnetic seed coating medicine formula of the granule such as vegetables, flowers seed, vegetables, flower seed and the magnetization processing method to magnetic capsuled seed after coated pellet granulation.Magnetic seed coating medicine, is characterized in that by weight proportion, it contains: inert substance 70～90%, and granularity is 150～250 object reduced iron powders 10～30%; Inert substance refers to talcum powder, bentonite and diatomaceous one or more mixtures; Utilize granulating disc, adopt dry powder spraying to carry out granulation, the seed that granulation is good should carry out drying and processing immediately, in case iron is oxidized.By vegetables, flower seed after above-mentioned batching dressing pill, its feature is: the seed weight after small-sized seed dressing should reach 3～9 times of original seed weight; The good seed of granulation is placed in kind of case, and the seed that the electromagnet suction nozzle on magnetic force seeder is drawn in kind of case successively magnetizes processing, and the magnetic field intensity of magnetic suction head, at 1000Gs～2000Gs, finally completes magnetization.
The shortcoming of the method is to need to adopt iron powder cooperating equipment magnelized seeds, and preparation process is more complicated; In addition, iron powder directly contacts seed, all can produce certain harmful effect to seed vigor and vigor; The method does not relate to pelleted seed antifalse effect and anti-counterfeiting detection.
The present invention is exactly a kind of method for anti-counterfeit for tobacco pelleted seed, it combines false proof and pill-type technology, and magnetic material is applied to pelleted seed, in guaranteeing that magnetic material and processing mode are to seed sprouting and growth of seedling nonhazardous effect, can avoid to greatest extent again false proof expensive of packaging material, and false proof mode is flexible, detect sensitive, this at home even external seed research field still belong to blank.
Summary of the invention
An object of the present invention is to provide a kind of preparation method of anti-counterfeiting tobacco pelleted seed prepared from magnetic powder, in the situation that guaranteeing seed vitality, again for the fake and forged problem that solves tobacco seed on market contributes.The easy easy operating of this method for anti-counterfeit, false proof cost is low, has strengthened the antiforge function of tobacco pelleted seed, has also protected the interests of wide farmers and tobacco company.
A preparation method for anti-counterfeiting tobacco pelleted seed prepared from magnetic powder, comprises the steps:
1, granulation: pour the naked kind of certain mass into seed-coating machine, the moistening naked kind of spraying clear water surface, first adding quality is the first seed coat agent of 3.5%～5.0% naked kind of quality, constantly stir, make it to be wrapped in naked kind surface, repeat above step 3-5 time, form micro-pellets; Then repeatedly adding quality is the first seed coat agent of 20%～50% naked kind of quality, and constantly spray adhesive stirring, makes the particle diameter of ball shape seed be increased to 1.00mm～1.25mm during this time;
2, Pelleting: by the second seed coat agent with account for the second seed coat agent and magnetic mixture gross mass and be not more than 10% magnetic and mix, again the mixture of 20%～50% naked kind of quality is joined in the ball shape seed of last step formation, spray adhesive also stirs, so repeatedly for several times, make the particle diameter of ball shape seed be increased to 1.60mm～1.80mm, then screening, polishing, colouring, dry, obtain the complete seed of dressing.
Wherein, in step 2, the quality optimization that adds magnetic is 2%～8% of magnetic and the second clothing agent composition gross mass, and more preferably quality is 2% or 5% or 8%, most preferably 5%.
Wherein, seed coat agent is optional from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and talcum powder.The first described seed coat agent is selected from bentonite.The second described seed coat agent is selected from talcum powder.Described adhesive is to be selected from the solution that high molecular polymer forms, high molecular polymer comprises gum Arabic, starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol etc., the described adhesive preferably carboxymethyl cellulose aqueous solution, its concentration is 1.0%～3.0% (percentage by weight).Described magnetic is selected from order number 500～1000 object iron powders, and preferably the order number of magnetic is 1000 orders.
Wherein, the first seed coat agent quality adding in granulation step adds up to 6～9 times of naked kind of quality, preferably 7.5 times.Wherein, the second seed coat agent quality adding in Pelleting step adds up to 35～49 times of naked kind of quality, preferably 42 times.
Another object of the present invention is to provide a kind of anti-counterfeiting tobacco pelleted seed, wherein, be coated with double-layer structure take naked kind as core, the ground floor structure of being close to naked kind comprises the first seed coat agent, the second layer structure of being close to ground floor structure comprises the second seed coat agent and magnetic, and wherein magnetic quality is no more than 10% of the second seed coat agent and magnetic mixture gross mass.
Wherein, the quality optimization of magnetic is 2%～8% of magnetic and the second clothing agent composition gross mass, and preferred mass is 2% or 5% or 8%, most preferably 5%.
Wherein, the particle diameter that has covered the tobacco ball shape seed of ground floor structure is 1.00mm～1.25mm.
Wherein, the particle diameter that has covered the tobacco ball shape seed of second layer structure is 1.60mm～1.80mm.
Wherein, seed coat agent is optional from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and talcum powder.The first described seed coat agent is selected from bentonite.The second described seed coat agent is selected from talcum powder.Described adhesive is to be selected from the solution that high molecular polymer forms, high molecular polymer comprises gum Arabic, starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol etc., the described adhesive preferably carboxymethyl cellulose aqueous solution, its concentration is 1.0%～3.0%.Described magnetic is selected from order number 500～1000 object iron powders, and preferably the order number of magnetic is 1000 orders.
Another object of the present invention is to provide a kind of fast detecting application magnetic carries out the method for false proof tobacco pelleted seed, the method utilizes magnetic material to detect seed, a kind of concrete detection method comprises, number is got 100 pelleted seeds, being put in diameter is in 12cm glass culture dish, draws seed with magnetic material, counts the pelleted seed quantity of being drawn by magnetic material, repeatedly, judge the percentage of having added the pelleted seed of magnetic in tobacco pelleted seed.Wherein, described magnetic material comprises ndfeb magnet or ferrite lattice, and the shape of magnet comprises cylinder and cuboid; In the time detecting the tobacco pelleted seed that adds magnetic quantity not sufficient 5%, can adopt the ndfeb magnet of D6～D15 cylinder or F6～F15 cuboid, add magnetic amount 5% and when above tobacco pelleted seed when detecting, can adopt the ferrite lattice of cuboid.
In actual applications, for the consideration of strengthening antifalse effect, in common tobacco pelleted seed, can mix the tobacco pelleted seed that contains magnetic of some, specifically in common tobacco pelleted seed, mixing the false proof seed that how much contains magnetic can determine by selling enterprise or the unit of tobacco seed, different cultivars, different batches, even the seed in different year, the different places of production can adopt different mixed proportions, by aforementioned detection method, can differentiate fast whether certain a collection of tobacco pelleted seed is the certain species of this enterprise, or the seed of selling to specific region.This kind of method for anti-counterfeit, even when other people know that in coating material, additive is magnetic, and know that available magnetic material detects, if but it does not know the mixed proportion of magnetic pelleted seed and common pelleted seed, just cannot forge, this has increased enterprise greatly to the false proof initiative of seed and reliability.
The invention has the advantages that: simple to operation, on the basis that does not change the original Pelleting technological process of tobacco seed, simply adjust, without the renewal of equipment etc., with low cost.This have anti-fraud functional pelleted seed and a common pelleted seed indifference in appearance, only under certain test material, just can demonstrate magnetic characteristic.This method, for tobacco seed enterprise provides reliable anti-counterfeiting technology more initiatively, has further guaranteed the quality of seed, has protected the interests of Seed enterprises and kind child user.
Accompanying drawing explanation
Fig. 1 is that the impact on tobacco seedling chlorophyll content is processed in magnetic Pelleting.
Embodiment
Provide preferred embodiment of the present invention below, these embodiment unrestricted content of the present invention.
In following embodiment, tobacco bred " MS cloud and mist 85 " and " the large gold dollar of safflower " seed are from China Tobacco Seed Yuxi Co., Ltd..Bentonite (A powder) and talcum powder (B powder) are from China Tobacco Seed Yuxi Co., Ltd., and carboxymethyl cellulose is purchased from Hangzhou Huadong Medicine Group Co.,Ltd.Magnetic adopts 1000 order magnetics, looks forward to hair powder body Materials Co., Ltd, purity 99% purchased from upper marine oil.The model of seed-coating machine is BY300A, purchased from Shanghai Xin Nuo instrument and equipment Co., Ltd.
embodiment 1
Pour the tobacco seed of 10g into seed-coating machine.
Granulation: 3.75g magnetic is mixed with 71.25g bentonite, obtain the mixture that particle content is bentonite and magnetic gross mass 5%, the moistening the surface of the seed of clear water of first spraying, adding quality is the bentonite of 0.5g and the mixture of magnetic, constantly stir, make it be wrapped in the surface of the seed, repeat above step 3～5 time, form micro-pellets; Then the mixture of 2g～5g bentonite and magnetic is joined in ball shape seed, the cmc soln of spraying 1.0%, constantly stirs, and repeatedly, makes the particle diameter of ball shape seed be increased to 1.00mm～1.25mm at every turn;
Pelleting: 21g magnetic is mixed with 399g talcum powder, obtain the mixture that particle content is talcum powder and magnetic gross mass 5%, the mixture of 2g～5g talcum powder and magnetic is joined in the ball shape seed of granulation formation, the cmc soln of spraying 3%, constantly stir, make the particle diameter of the ball shape seed of granulation formation be increased to 1.60mm～1.80mm, then screening, polishing, colouring, the dry complete seed of dressing that obtains.
In the time that granulation step starts, first add a small amount of seed coat agent, can make seed fully disperse, be conducive to later stage granulation, the object of granulation is seed is further disperseed and increase its volume, Pelleting makes the seed volume after granulation continue to be increased to ideal range.The control of pelleted seed particle diameter is mainly screened by difformity and big or small sifting machine, and the seed that reaches desirable particle size is sifted out, the continuation Pelleting not reaching.Tobacco Pelleting of the present invention pulvis used, its fineness is generally 200～300 orders, for magnetic can fully be mixed in Pelleting pulvis, and does not affect the effect of final Pelleting, therefore magnetic is selected the thin iron powder of 500～1000 order.
Seed coat agent is optional from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and talcum powder.The first seed coat agent in the present embodiment is preferably from bentonite.The second seed coat agent is preferably from talcum powder.Its main cause is that these two kinds of raw material stable chemical natures, composition are single, cheap and easy to get, is easy to suitability for industrialized production.
Described adhesive is to be selected from the solution that high molecular polymer forms, high molecular polymer comprises gum Arabic, starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol etc., the adhesive preferably carboxymethyl cellulose aqueous solution of the present embodiment, its concentration is 1.0%～3.0%.
In order to realize object of the present invention, inventor is constantly screened and is contrasted by a large amount of experiments, for example magnetic is mixed with bentonite and talcum powder respectively in varing proportions, measure the germination of magnetic pelleted seed, adjust again magnetic and bentonite and talcous mixed proportion according to measurement result, so that obtain being suitable for better magnetic ratio and the processing method of tobacco pelleted seed.Method described in the present embodiment is the basic method of preparing the false proof pelleted seed of magnetic, false proof seed prepared by other embodiment and the difference of the present embodiment are only that magnetic in granulation process and Pelleting process accounts for percentage by weight different of mixture, especially, magnetic addition in granulation process can be 0%, in the embodiment of concrete preparation method below, repeats no more.
For the ease of contrasting adding the pelleted seed that the magnetic of Different Weight percentage makes in different seed coat agents in embodiment below, and convenient expression, the coded representation with definite meaning all adopted.Illustrate, in the present embodiment, because magnetic mixes respectively with A powder (bentonite), B powder (talcum powder) and magnetic accounts for respectively 5% of mixture gross mass separately, the false proof seed therefore preparing represents with AB5.Only use A powder as seed coat agent if do not add magnetic in granulation process, in Pelleting process, magnetic is mixed with B powder and magnetic accounts for 10% of mixture gross mass, the false proof seed preparing represents with B10.In addition, the seed that does not all add magnetic in granulation process and Pelleting process represents with CK, in contrast.
Seed sprouting and physiological index determining method:
(1) seed sprouting and seedling index
Tobacco pelleted seed is placed in to the diameter 9cm culture dish of three layers of moisture absorption filter paper.Every processing repeats for 3 times, 100 pelleted seeds of every repetition.Seed germination carries out under 20～30 ℃ of temperature match curing conditions, high temperature (30 ℃) 8h, and low temperature (20 ℃) 16h, the high temperature period has illumination.
After putting bed, within the 2nd day, play every day germination seed is counted, calculated germination vigor in the 7th day, the 16th day statistics germination rate.Germinate the 17th day, 3 of each processing are repeated all to select at random 10 strain seedling, measure its root length and height of seedling.Seedling is dried to 24h in 80 ℃ of baking ovens, measure its dry weight.Germination index (GI=∑ (G
t/ T
t)) (in formula: G
tfor the germinative number of different time, T
tfor germination number of days, ∑ is summation).
(2) seedling chlorophyll content
The fresh sample 0.2g of tobacco seedling that gets different disposal, is placed in mortar, adds 1ml 95% ethanol to grind, and after fully grinding, pours in 5ml centrifuge tube, then adds 2ml 95% alcohol flushing, pours in centrifuge tube, in the centrifugal 10min of 5000r/min.Get supernatant 1ml in 10ml centrifuge tube, add 9ml 95% ethanol, mix rear mensuration 665, absorbance under 649,470nm, take 95% ethanol as blank, the computational methods of chlorophyll a, chlorophyll b, carotenoid and chlorophyll total amount are with reference to Li Hesheng, Sun Qun, the method for definition in " plant physiology and biochemistry experimental principle and technology " (Beijing: Higher Education Publishing House, 2001) that Zhao Shijie etc. write.
(3) statistical analysis technique
Adopt SAS (V8) software to carry out variance analysis, multiple ratio adopts P < 0.05, LSD method, first process arcsine conversion of the percentage data of result of the test before statistics (y=arcsin[sqr (x/100)]).
embodiment 2
In the present embodiment, all mix magnetic at A powder (bentonite) with B powder (talcum powder), prepare respectively following false proof seed, be AB5, AB10, AB20, AB30 and AB50, through Seed germination and data statistics, find except the germination rate of AB5 with contrast without significant difference, the percentage of seedgermination of all the other processing is all significantly lower than contrasting (table 1).Meanwhile, the germination index of several processing seeds with germination vigor also all significantly lower than contrasting.In the time that particle content exceedes 10%, germination vigor is 0; When particle content exceedes 20%, germination rate and germination index are 0.
The impact of several magnetic Pelleting of table 1 method on Tobacco Seed Germination
Significant difference (P < 0.05, LSD) between the same kind different disposal of the different letter representations of note: *, lower same
embodiment 3
Due in embodiment 2 preparation its germination vigor of false proof pelleted seed and germination index all significantly lower than contrast, think and cause the reason of this kind of phenomenon may have two kinds, the one, the addition of magnetic is excessive has harmful effect to seed germination, and the 2nd, it is unfavorable to seed sprouting that magnetic directly contacts seed.
In order to verify, to be whether that magnetic directly contacts seed unfavorable to seed sprouting, in the present embodiment, in A powder, do not add magnetic, only magnetic is added in B powder, and particle content in B powder do not reduce, and prepares thus magnetic pelleted seed and carry out germination test.
In the present embodiment, prepare respectively following false proof seed, be B10, B20 and B30, the germination rate of two tobacco bred B10 with contrast all without significant difference, and the germination rate of " the large gold dollar of safflower " B20 also with contrast without significant difference, all the other germination rates of processing seeds of two tobacco breds are all significantly lower than contrast.Meanwhile, the germination index of all processing pelleted seeds with germination vigor also all significantly lower than contrasting (table 2).This addition that shows magnetic is excessive really unfavorable to seed sprouting.Meanwhile, B10 is with respect to AB10, and potentiality of seed, germination rate, germination index obviously improve, and illustrates that it is also influential to seed germination that magnetic directly contacts seed.
The impact of several magnetic Pelleting of table 2 method on Tobacco Seed Germination
embodiment 4
Because embodiment 2 and embodiment 3 all think that causing the bad possible cause of seed germination is that magnetic addition is excessive, in order to address this problem, in the present embodiment, reduce the content of magnetic in seed coat agent, but avoid again particle content too low, to such an extent as to anti-counterfeiting detection is difficult to carry out, therefore the present embodiment all mixes magnetic at A powder with B powder, has prepared following seed, be AB1, AB2.5 and AB4.Result shows, germination rate, the germination vigor of two tobacco bred seeds and contrasting without significant difference, the germination index of AB1 is all higher than contrast, and " MS cloud and mist 85 " reach significance level, but the germination index of the AB4 of two tobacco breds is significantly lower than contrast (table 3).Think thus, reduce particle content and really can reduce the harmful effect of magnetic to seed germination.
The impact of several magnetic Pelleting of table 3 method on Tobacco Seed Germination
embodiment 5
In embodiment 4, AB1 and the AB2.5 of preparation have no adverse effects to seed germination, but the test of embodiment 3 shows, it is also influential to seed germination that magnetic directly contacts seed.Therefore, for the further impact of research magnetic on seed germination.In the present embodiment, in A powder, do not add magnetic, only magnetic is added in B powder, and reduced particle content, prepare following false proof seed, i.e. B2, B5 and B8.
Result shows, the germination index of " MS cloud and mist 85 " B2 is significantly higher than contrast, and other process two kinds on germination vigor, germination rate and germination index also all and contrast without significant difference (table 4).
The impact of several magnetic Pelleting of table 4 method on Tobacco Seed Germination
embodiment 6
The experimental result of comprehensive embodiment 2-5, filters out germinate five kinds of Pelleting methods having no adverse effects of pelleted seed has been carried out again to the mensuration of Seedling Quality.The wherein B2 of " the large gold dollar of safflower ", it is long that B8 and AB2.5 have significantly improved seedling root, and B5 and AB1 have significantly improved seedling height of seedling, five processing do not make significant difference to seedling dry weight.Five kinds of Pelleting methods of " MS cloud and mist 85 " seedling height of seedling that has been significantly increased, the seedling dry weight of B5 is also significantly higher than contrast, and the seedling root of five processing is long and contrast without significant difference (table 5).
The impact of several magnetic Pelleting of table 5 method on tobacco seedling quality
These five kinds of Pelletings are processed to the chlorophyll content of tobacco seedlings and measured, the B2 finding at " the large gold dollar of safflower ", in B5 and B8, seedling chlorophyll a and total chlorophyll content increase, chlorophyll b, carotenoid and contrast no significant difference.AB1 and AB2.5 seedling Determination of Chlorophyll a and total chlorophyll content relative comparison are obviously on the low side, and AB1 significantly reduces." MS cloud and mist 85 " significantly reduced seedling chlorophyll a, carotenoid and total chlorophyll content except AB2.5, all the other 4 kinds process seedling chlorophyll content all with contrast without significant difference (Fig. 1).
Magnetic main component is iron, and iron is the indispensable element of chlorophyll formation, is difficult to shift in plant body.If soil iron deficiency, the photosynthesis to plant and output all can have a certain impact, but iron is excessive, also can cause that chlorophyll content of plant reduces, so add magnetic in seed coat agent, the root system position that can be tobacco provides ferro element, is conducive to the photosynthesis of growth of seedling and tobacco leaf.After magnetic Pelleting is processed, B2, B5 and B8 have no adverse effects to growth of seedling and chlorophyll content, and some index is significantly increase of contrast also, AB1 and AB2.5 have reducing effect to seedling chlorophyll content, even if show to reduce particle content, magnetic directly contacts seed growth of seedling is still existed to certain influence.This illustrates again, and it is unfavorable to seed growth that magnetic directly contacts seed, so in the time of the Pelleting of tobacco seed magnetic, should avoid magnetic to contact with the direct of seed as far as possible.
Any method for treating seeds, the most basic requirement does not have harmful effect to seed itself exactly, and this can judge by measuring seed sprouting and growth of seedling index of correlation conventionally.
Found that, in the time that A powder (bentonite) all mixes magnetic with B powder (talcum powder), when namely magnetic directly contacts with seed, even if the particle content of low concentration also has adverse effect to growth of seedling.And only when mix magnetic in B powder time, namely magnetic does not directly contact with seed, find that magnetic concentration can suitably increase, and pelleted seed is sprouted and growth of seedling has no adverse effects.Through constantly adjusting the mixed proportion of magnetic in seed coat agent, find B2, B5 and B8 all have no adverse effects to two tobacco bred seed germinations, on Seedling Quality and chlorophyll content also without impact, root length or height of seedling or seedling dry weight that some has even significantly improved seedling, show that suitable magnetic Pelleting processing has certain positive role to the growth of tobacco seedling.Illustrating and be no more than 10% of the second seed coat agent and magnetic mixture gross mass when magnetic quality, and while only adding magnetic in the second seed coat agent, is the false proof Pelleting processing method of magnetic preferably.
embodiment 7
After 60 " the large gold dollar of safflower " B8 seeds are mixed with the CK seed of 40 " the large gold dollars of safflower ", be placed in the glass culture dish that diameter is 12cm, the false proof seed of magnetic accounts for 60% of all pelleted seed sums.By a magnetic pole strength of the ferrite lattice of cuboid, near culture dish, the quantity of the pelleted seed that counting is drawn by magnet, finds that having 60 B8 seeds is attracted, the ratio that the false proof seed of calculating magnetic accounts for all pelleted seed sums is 60%, repeat again above test 7 times, calculate the false proof seed rate of magnetic and be respectively 60%, 60%, 60%, 60%, 60%, 60%, 60%, eight time is calculated average proportions is 60%.
Therefore can detect the false proof pelleted seed of magnetic according to the method, can detect the false proof seed of magnetic of the original preset proportion containing in a collection of tobacco pelleted seed simultaneously.
Claims (9)
1. a preparation method for anti-counterfeiting tobacco pelleted seed prepared from magnetic powder, comprises the steps:
Granulation: pour the naked kind of certain mass into seed-coating machine, the moistening naked kind of spraying clear water surface, first adding quality is the first seed coat agent of 3.5% ~ 5.0% naked kind of quality, constantly stirs, and makes it to be wrapped in naked kind surface, repeats above step 3 ~ 5 time, forms micro-pellets; Then repeatedly adding quality is the first seed coat agent of 20% ~ 50% naked kind of quality, and constantly spray adhesive stirring, makes the particle diameter of ball shape seed be increased to 1.00mm ~ 1.25mm during this time;
Pelleting: by the second seed coat agent with account for the second seed coat agent and magnetic mixture gross mass and be not more than 10% magnetic and mix, again the mixture of 20% ~ 50% naked kind of quality is joined in the ball shape seed of last step formation, spray adhesive also stirs, so repeatedly for several times, make the particle diameter of ball shape seed be increased to 1.60mm ~ 1.80mm, then screening, polishing, colouring, dry, obtain the complete seed of dressing.
2. the method for claim 1, is characterized in that, in Pelleting step, the quality optimization that adds magnetic is 2% ~ 8% of magnetic and the second clothing agent composition gross mass.
3. method as claimed in claim 2, is characterized in that, in Pelleting step, the quality optimization that adds magnetic is 2% or 5% or 8% of magnetic and the second clothing agent composition gross mass.
4. method as claimed in claim 2, is characterized in that, the first seed coat agent is selected from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and talcum powder; The second seed coat agent is selected from clay, diatomite, peat, mica, vermiculite, the mixing of one or more in perlite, active carbon, rock phosphate, bentonite and talcum powder; Described adhesive is to be selected from the solution that high molecular polymer forms, high molecular polymer comprises gum Arabic, starch, carboxymethyl cellulose, methylcellulose, ethyl cellulose, polyethylene acetate fiber, Sodium Alginate, polyvinylidene chloride, polyethylene oxide, polyvinyl alcohol, its concentration is 1.0% ~ 3.0%; Described magnetic is selected from order number 500 ~ 1000 object iron powders.
5. method as claimed in claim 4, is characterized in that, the first described seed coat agent is selected from bentonite; The second described seed coat agent is selected from talcum powder; The described adhesive preferably carboxymethyl cellulose aqueous solution, the order number of described magnetic is 1000 orders.
6. the method as described in claim 1-5 any one, is characterized in that, the first seed coat agent quality adding in granulation step adds up to 6 ~ 9 times of naked kind of quality; The the second seed coat agent quality adding in Pelleting step adds up to 35 ~ 49 times of naked kind of quality.
7. method as claimed in claim 6, is characterized in that, the first seed coat agent quality adding in granulation step adds up to 7.5 times of naked kind of quality; The the second seed coat agent quality adding in Pelleting step adds up to 42 times of naked kind of quality.
8. one kind is detected the method for anti-counterfeiting tobacco pelleted seed prepared from magnetic powder, the method utilizes magnetic material to detect the anti-counterfeiting tobacco pelleted seed prepared from magnetic powder of preparing by method claimed in claim 1, concrete steps are: number is got 100 pelleted seeds, being put in diameter is in 12cm glass culture dish, draw seed with magnetic material, the pelleted seed quantity that counting is drawn by magnetic material, repeatedly, judges the percentage of having added the pelleted seed of magnetic in tobacco pelleted seed.
9. method as claimed in claim 8, is characterized in that, described magnetic material comprises ndfeb magnet or ferrite lattice, and the shape of magnet comprises cylinder and cuboid; In the time detecting the tobacco pelleted seed that adds magnetic quantity not sufficient 5%, adopt the ndfeb magnet of D6 ~ D15 cylinder or F6 ~ F15 cuboid, add magnetic amount 5% and when above tobacco pelleted seed when detecting, adopt the ferrite lattice of cuboid.
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| CN104541670B (en) * | 2014-12-31 | 2016-06-29 | 贵州省烟草科学研究院 | A kind of process of tobacco seed coating Pelleting |
| CN106888616A (en) * | 2015-12-21 | 2017-06-27 | 玉溪中烟种子有限责任公司 | One grows tobacco developing anti-fake pelleted seed and its processing and the method for inspection |
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