CN1594236A - Nano selenium nutrition conditioning agent for fruit and vegetable and its preparing process - Google Patents
Nano selenium nutrition conditioning agent for fruit and vegetable and its preparing process Download PDFInfo
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- CN1594236A CN1594236A CN 200410023389 CN200410023389A CN1594236A CN 1594236 A CN1594236 A CN 1594236A CN 200410023389 CN200410023389 CN 200410023389 CN 200410023389 A CN200410023389 A CN 200410023389A CN 1594236 A CN1594236 A CN 1594236A
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- selenium
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- fruit
- wetting agent
- vegetable
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- 229910052711 selenium Inorganic materials 0.000 title claims abstract description 102
- 239000011669 selenium Substances 0.000 title claims abstract description 102
- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 35
- 235000016709 nutrition Nutrition 0.000 title claims abstract description 35
- 230000035764 nutrition Effects 0.000 title claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title abstract description 85
- 230000003750 conditioning effect Effects 0.000 title description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 24
- 239000000080 wetting agent Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004005 microsphere Substances 0.000 claims abstract description 15
- 150000004676 glycans Chemical class 0.000 claims abstract description 13
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 13
- 239000005017 polysaccharide Substances 0.000 claims abstract description 13
- 229940065287 selenium compound Drugs 0.000 claims abstract description 12
- 150000003343 selenium compounds Chemical class 0.000 claims abstract description 12
- 239000004615 ingredient Substances 0.000 claims abstract description 9
- 230000004071 biological effect Effects 0.000 claims abstract description 5
- 238000009736 wetting Methods 0.000 claims abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 claims abstract 3
- 235000012041 food component Nutrition 0.000 claims abstract 2
- 229940091258 selenium supplement Drugs 0.000 claims description 97
- 229920001661 Chitosan Polymers 0.000 claims description 21
- 229920002472 Starch Polymers 0.000 claims description 16
- 235000019698 starch Nutrition 0.000 claims description 16
- 239000008107 starch Substances 0.000 claims description 16
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 claims description 11
- 229960001471 sodium selenite Drugs 0.000 claims description 11
- 239000011781 sodium selenite Substances 0.000 claims description 11
- 235000015921 sodium selenite Nutrition 0.000 claims description 11
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 10
- 229920000053 polysorbate 80 Polymers 0.000 claims description 10
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 8
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 8
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 8
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 7
- PMYDPQQPEAYXKD-UHFFFAOYSA-N 3-hydroxy-n-naphthalen-2-ylnaphthalene-2-carboxamide Chemical compound C1=CC=CC2=CC(NC(=O)C3=CC4=CC=CC=C4C=C3O)=CC=C21 PMYDPQQPEAYXKD-UHFFFAOYSA-N 0.000 claims description 6
- 150000002170 ethers Chemical class 0.000 claims description 6
- 229960001881 sodium selenate Drugs 0.000 claims description 6
- 239000011655 sodium selenate Substances 0.000 claims description 6
- 235000018716 sodium selenate Nutrition 0.000 claims description 6
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003945 anionic surfactant Substances 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- 229920000136 polysorbate Polymers 0.000 claims description 3
- 239000001509 sodium citrate Substances 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 3
- 229940038773 trisodium citrate Drugs 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 3
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 claims 1
- 239000011668 ascorbic acid Substances 0.000 claims 1
- 235000010323 ascorbic acid Nutrition 0.000 claims 1
- 229960005070 ascorbic acid Drugs 0.000 claims 1
- 239000003431 cross linking reagent Substances 0.000 claims 1
- 150000002191 fatty alcohols Chemical class 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 231100000053 low toxicity Toxicity 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 16
- 230000001105 regulatory effect Effects 0.000 description 15
- 238000005303 weighing Methods 0.000 description 12
- 230000000050 nutritive effect Effects 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 8
- 230000002829 reductive effect Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 235000009754 Vitis X bourquina Nutrition 0.000 description 4
- 235000012333 Vitis X labruscana Nutrition 0.000 description 4
- 240000006365 Vitis vinifera Species 0.000 description 4
- 235000014787 Vitis vinifera Nutrition 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 4
- 239000003337 fertilizer Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 244000302544 Luffa aegyptiaca Species 0.000 description 3
- 235000009814 Luffa aegyptiaca Nutrition 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 241000237502 Ostreidae Species 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 235000020636 oyster Nutrition 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 244000131522 Citrus pyriformis Species 0.000 description 1
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 101710194948 Protein phosphatase PhpP Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 230000001093 anti-cancer Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000003721 exogen phase Effects 0.000 description 1
- 235000014106 fortified food Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002218 hypoglycaemic effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- -1 is tonic Chemical compound 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000001863 plant nutrition Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 235000011649 selenium Nutrition 0.000 description 1
- 239000010420 shell particle Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001256 tonic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- SOBHUZYZLFQYFK-UHFFFAOYSA-K trisodium;hydroxy-[[phosphonatomethyl(phosphonomethyl)amino]methyl]phosphinate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)CN(CP(O)([O-])=O)CP([O-])([O-])=O SOBHUZYZLFQYFK-UHFFFAOYSA-K 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Images
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- Coloring Foods And Improving Nutritive Qualities (AREA)
- Preparation Of Fruits And Vegetables (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
果蔬类纳米硒营养调节剂及其制备方法，它由具有高生物活性的红色纳米硒和强浸润能力的润湿剂及其它营养成分构成。其制备方法为将硒化合物溶于水中，同时加入还原剂和天然多糖纳米微球作为模板，在常温下搅拌反应1～5小时，溶液呈深红色，即制得红色纳米硒，再加入浸润剂，并配以营养成分，即得。具有很高的生物活性及较低的毒性，提高了植物吸收的速度和利用率，降低了对植物的伤害。本发明具有高效能、低毒性，制备简单，操作使用方便的特点，有利于植物对硒的吸收利用，有效提高果蔬产量和品质，且成本低易于大规模生产。The fruit and vegetable nano-selenium nutrition regulator and its preparation method are composed of red nano-selenium with high biological activity, a wetting agent with strong wetting ability and other nutritional components. The preparation method is to dissolve the selenium compound in water, add a reducing agent and natural polysaccharide nano-microspheres as templates at the same time, stir and react at room temperature for 1 to 5 hours, and the solution is dark red, that is, red nano-selenium is obtained, and then adding a wetting agent , and with nutritional ingredients, that is. It has high biological activity and low toxicity, improves the speed and utilization rate of plant absorption, and reduces the damage to plants. The invention has the characteristics of high efficiency, low toxicity, simple preparation and convenient operation and use, is beneficial to the absorption and utilization of selenium by plants, effectively improves the yield and quality of fruits and vegetables, and is low in cost and easy for large-scale production.
Description
Technical field
The present invention relates to the biological nano material in area research and exploitations such as Plant Nutrition, agrochemistry, Agricultural biotechnologies, refer in particular to a kind of benefit selemium nutrition conditioning agent of making by nanotechnology and preparation method thereof.
Background technology
Selenium is one of essential element of human life.Numerous scientific researches show, that selenium has is anticancer, raise immunity, hypoglycemic, protection cardiovascular and cerebrovascular, prevention cataract and effect such as delay senility, so the whole society has started one and mends the selenium upsurge.Human body is mended selenium and be can be summarized as inorganic benefit selenium, synthetic benefit selenium and three kinds of forms of natural organic benefit selenium, but preceding two kinds are mended the selenium modes and have unsurmountable shortcomings such as the big and cost height of toxic side effect, and natural organic benefit selenium owing to the bioavailability height, se complementary effect is good, toxic side effect is little and advantage such as wide material sources receives increasing concern.Natural organic benefit selenium mainly is tonic, is exactly reasonably to eat of selenium-enriched food, as the meat of rich selenium, vegetables, fruit, rice etc.
Lack the selenium area because the most of area of China belongs to, it is extremely limited only absorbing the selenium that obtains by plant in the soil, thereby selenium-enriched fertilizer just arises at the historic moment.Multiple selenium-enriched fertilizer is arranged at present on the market, have as base manure, have as foliage fertilizer.In existing these selenium-enriched fertilizers, the selenium of interpolation mainly is inorganic selenium and selenium mineral powder, has a lot of problems in actual applications, and for example the plant utilization rate is lower, and working concentration is higher relatively, thereby the phenomenon that leaf is hindered fruit occurs hindering; Then be prone to the phenomenon of soil compaction as base manure.
Summary of the invention
Purpose of the present invention aims to provide a kind of high-effect, hypotoxicity, helps the biological fruits and vegetables class nanometer selenium nutrition regulating agent that absorbs to selenium.
It is simple that another object of the present invention aims to provide preparation technology, is easy to the fruits and vegetables class nanometer selenium nutrition regulating agent preparation method of scale operation.
The objective of the invention is to realize by following manner:
The present invention includes wetting agent and other nutritive ingredient of red nano selenium with high biological activity and strong wetting capacity.
Described red nano selenium comprises natural polysaccharide Nano microsphere template and enrichment nanometer selenium thereon.
Described natural polysaccharide is starch or chitosan.
Described wetting agent is one or more cooperations in the following material: tween series, AEO (fatty alcohol-polyoxyethylene ether)) series, OP (fatty phenol polyethenoxy ether) series is soluble in water and have powerful adhesive nonionic and anion surfactant.
The preferred tween-80 of described wetting agent, tween 20, AEO-10, Triton-100.
Described other nutritions can be K
2SO
4, KH
2PO
4, KNO
3
Described red nano selenium concentration is 5-500ppm, and wherein preferable concentration is 30-100ppm.
The nutrition regulating agent concentration range that accounts for of described wetting agent is 0.01-1%, and wherein preferred concentration is 0.05-0.20%, by weight.
Described other are nutrition 0.1-10g/l, and wherein the preferred concentration scope is 0.5-5g/l.
Another object of the present invention realizes by following manner:
The preparation method of fruits and vegetables class nanometer selenium nutrition regulating agent is: selenium compound is soluble in water, add reductive agent and natural polysaccharide Nano microsphere simultaneously as template, stirring reaction is 1～5 hour at normal temperatures, solution is scarlet, promptly make red nano selenium, add treating compound again, and be equipped with conventional nutritive ingredient, promptly.
Its proportioning raw materials is: template: selenium compound: reductive agent=4～6: 1: 2～5, and other nutritive element concentration are 5～10 times of selenium compound.
Described selenium compound is molten to be water miscible inorganic selenium, comprises sodium selenate, Sodium Selenite etc.; Described reductive agent is natural organic matter xitix with reductibility, trisodium citrate, mercaptoethanol etc.Described natural polysaccharide Nano microsphere template comprises that starch or chitosan nano microballoon are as template.Described treating compound comprise add tween series, AEO (fatty alcohol-polyoxyethylene ether)) series, OP (fatty phenol polyethenoxy ether) series is soluble in water and have powerful adhesive nonionic and anion surfactant; The preferred tween-80 of described wetting agent, tween 20, AEO-10, Triton-100; Conventional nutritive ingredient is K
2SO
4, KNO
3, KH
2PO
4Deng.
Its starch nano-microsphere template is prepared as Zulkovsky starch is dissolved in the water fully by heating, adds linking agent POCL when waiting to be chilled to 30-50 ℃
3, dispersed with stirring makes.
Its chitosan nano microsphere template is prepared as chitosan is dissolved in the acetum of 0.5-5% fully, the chitosan positively charged, and dripping concentration is the electronegative tripoly phosphate sodium STPP (TPP) of 0.1-5%, and solution is by the static combination, and stirring makes.
The present invention mainly adopts the nanometer technology of preparing, inorganic selenium is prepared into has highly active red elemental selenium, and make it to be enriched in the surface of the nano particle of biopolymer such as polyose, thereby obtain the nm-class core-and-shell particles of sugar/selenium, again according to the growth and development characteristics and the nutritional-physiological characteristics of fruits and vegetables, be equipped with suitable conventional nutritive element and wetting agent, just obtain nanometer selenium nutrition regulating agent efficiently.The present invention has filled up nanometer selenium is mended the selemium nutrition conditioning agent as fruits and vegetables class plant blank.
The present invention utilizes this red nano selemium nutrition conditioning agent to spray in the surface of the cauline leaf fruit of fruits and vegetables class in the fruits and vegetables class suitable growth phase, can effectively improve the selenium content of fruits and vegetables on the one hand, and can improve other qualities of fruits and vegetables greatly, on the other hand in the growth that effectively promotes the fruits and vegetables plant, delay to have remarkable advantages on the plant senesecence.In addition, because use is simple to operate, using dosage is very little, and it is very low to use cost, therefore helps the popularization and the application of this invention product.
Described nanometer selenium is that the Nano microsphere with natural polysaccharide is a template, makes with selenium compound and reductive agent generation redox reaction.Natural polysaccharide comprises starch and chitosan; Selenium compound is water miscible inorganic selenium, comprises sodium selenate, Sodium Selenite etc.; Reductive agent is natural organic matter xitix, trisodium citrate, the mercaptoethanol with reductibility.Described wetting agent and stablizer comprise tween-80, tween 20, AEO-10 etc. for soluble in water and have powerful adhesive tensio-active agent on fruits and vegetables class plant stem-leaf.
The present invention is reduced to zeroth order selenium to high price selenium by redox system, add suitable template, make selenium attached to template surface, obtain nanometer selenium by the nanometer technology of preparing, and with the nonionic surface active agent tween-80, tween 20, AEO-10 etc. are wetting agent and stablizer, and be equipped with other nutritive elements, obtain the nanometer selenium nutrition regulating agent.
Characteristics of the present invention are:
One. the nanometer selenium of the present invention's preparation, compare inorganic selenium, have very high biological activity and lower toxicity, improved the speed and the utilization ratio of plant absorbing, reduced injury to plant.
Two. it is template that the present invention adopts the polysaccharide Nano microsphere, selects for use tensio-active agents such as tween-80 as stablizer and wetting agent, has strengthened the infiltration of nanometer selenium nutrition regulating agent and has sticked ability, helps plant absorbing nanometer selenium.
Three. fruits and vegetables class nanometer selenium nutrition regulating agent of the present invention can effectively promote the fruits and vegetables plant growth, delay senility, effectively improve fruits and vegetables output, particularly improve the selenium content of fruits and vegetables and significantly improve the quality of fruits and vegetables.
Four. the nanometer selenium nutrition regulating agent of the present invention's preparation is an aqua, can directly convert water and do foliage-spray, and operation is very easy, is easy to the popularization of user's acceptance and product.
Five. the used starting material of the present invention are natural polysaccharide, Sodium Selenite and xitix and the fruits and vegetables required K that grows
2SO
4, KH
2PO
4, KNO
3Deng raw material, all be cheap and product that be easy to get, raw materials cost is cheap relatively.And nanometer selenium preparation technology is simple, and equipment requirements is not high, and the reaction times is short, and mild condition all is to carry out at normal temperatures and pressures, is easy to scale operation.
Description of drawings
Accompanying drawing be embodiments of the invention 1 prepared be the nano granules of selenium of template with starch, detect with transmission electron microscope that to obtain the particulate mean diameter be 45nm, prepared particle diameter scope is between 1～200nm.
Embodiment:
Embodiment 1:
With the starch nano-microsphere is the preparation of the nanometer selenium of template
(1) preparation of starch nano-microsphere
1, take by weighing the 1.5g Zulkovsky starch, heating hydrolysis is in 150ml distilled water.
Slowly add the linking agent POCL that accounts for starch quality 1% when 2, hydrolyzed solution is cooled to 40 ℃
3, 500r/min stirring reaction 30 minutes.
(2) preparation of nanometer selenium
1, takes by weighing the 300mg Sodium Selenite, be dissolved in the 150ml water;
2, take by weighing the 900mg xitix and add in the aqueous solution of Sodium Selenite, simultaneously the amidin that makes in () is added in the reaction soln, 500r/min stirring reaction 3h forms red transparent solution, obtains red nano selenium.
In the above-mentioned red nano selenium solution that makes, add wetting agent tween-80 and conventional nutritive ingredient K
2SO
4, KNO
3, KH
2PO
4, stirring and evenly mixing can make nanometer selenium 50ppm, K
2SO
41g/l, KNO
32g/l, KH
2PO
41g/l, the fruits and vegetables class nanometer selenium nutrition regulating agent of tween-80 0.05% (weight meter).
Embodiment 2:
With the chitosan is the preparation of the nanometer selenium of template
(1) preparation of chitosan nano microballoon
1. take by weighing 1.5g chitosan powder, under agitation condition, be dissolved in fully in the acetum of 150ml 1%.
2. slowly add 1% TPP solution to oyster white occurring, the amount that drips TPP is 1/10 of a chitosan, and 500r/min stirs and formed emulsion in 30 minutes.
(2) preparation of nanometer selenium
1. take by weighing Sodium Selenite 300mg, be dissolved in the 150ml water;
2. the chitosan nano microballoon that () is made adds in the aqueous solution of Sodium Selenite, and 500r/min stirs 10min;
3. take by weighing xitix 900mg, be added in the mixing solutions of above-mentioned chitosan nano microballoon and Sodium Selenite, continue stirring reaction 3h, form the transparent solution of scarlet, obtain red nano selenium.
In the above-mentioned red nano selenium solution that makes, add wetting agent tween 20 and conventional nutritive ingredient K
2SO
4, KNO
3, KH
2PO
4, stirring and evenly mixing can make nanometer selenium 80ppm, K
2SO
42g/l, KNO
33g/l, KH
2PO
42g/l, the fruits and vegetables class nanometer selenium nutrition regulating agent of tween 20 0.1% (weight meter).
Embodiment 3:
With the chitosan is the preparation of the nanometer selenium of template
(1) preparation of chitosan nano microballoon
1. take by weighing 1.8g chitosan powder, under agitation condition, be dissolved in fully in the acetum of 150ml 1%.
2. slowly add 1% TPP solution to oyster white occurring, the amount that drips TPP is 1/10 of a chitosan, and 500r/min stirs and formed emulsion in 30 minutes.
(2) preparation of nanometer selenium
1. take by weighing sodium selenate 300mg, be dissolved in the 150ml water;
2. the chitosan nano microballoon that () is made adds in the aqueous solution of sodium selenate, and 500r/min stirs 10min;
4. take by weighing lemon acid trisodium 1000mg, be added in the mixing solutions of above-mentioned chitosan nano microballoon and sodium selenate, continue stirring reaction 3h, form the transparent solution of scarlet, obtain red nano selenium.
In the above-mentioned red nano selenium solution that makes, add wetting agent tween 20 and conventional nutritive ingredient K
2SO
4, KNO
3, KH
2P0
4, stirring and evenly mixing can be prepared red nano selenium 30ppm; K
2SO
41g/l, KNO
32g/l, KH
2PO
41g/l, tween-80 0.1, the fruits and vegetables class nanometer selenium nutrition regulating agent of (weight meter).
Embodiment 4
(1) preparation of starch nano-microsphere
1, take by weighing the 1.2g Zulkovsky starch, heating hydrolysis is in 150ml distilled water.
Slowly add the linking agent POCL that accounts for starch quality 1% when 2, hydrolyzed solution is cooled to 40 ℃
3, 500r/min stirring reaction 30 minutes.
(2) preparation of nanometer selenium
3, take by weighing the 300mg Sodium Selenite, be dissolved in the 150ml water;
4, take by weighing the 600mg mercaptoethanol and add in the aqueous solution of Sodium Selenite, simultaneously the amidin that makes in () is added in the reaction soln, 500r/min stirring reaction 3h forms red transparent solution, obtains red nano selenium.
In the above-mentioned red nano selenium solution that makes, add wetting agent tween-80 and conventional nutritive ingredient K
2SO
4, KNO
3, KH
2PO
4, stirring and evenly mixing can make red nano selenium 50ppm; K
2SO
44g/, KNO
35g/l, KH
2PO
44g/l, the fruits and vegetables class nanometer selenium nutrition regulating agent of AEO-10 0.2% (weight meter).
Embodiment 5
Step is with embodiment 2, red nano selenium 5ppm; K
2SO
40.1g/l KNO
30.1g/l KH
2PO
40.1g/l Triton-100 0.1%
Embodiment 6
Step is with embodiment 2, red nano selenium 500ppm; K
2SO
410g/l KNO
310g/l KH
2PO
410g/1 Triton-100 1%
Embodiment 7:
Implement in the field of nanometer selenium nutrition regulating agent
One. the fruits grape field test in Yuelu District zenith township, Changsha: spray the product that embodiment 1 is provided three times in grape flowering period, shedding phase and ripening stage, working concentration is and contains selenium element 50ppm.The grape selenium content reaches (85 ± 5) μ g/kg, has improved nearly 15 times than control group; Sugar content reaches (19 ± 1.4) %, has improved more than 11% than control group; Acidity is (6.1 ± 0.4) g/l, has reduced more than 7% than control group.Grape quality significantly improves.
Two. the greengrocery sponge gourd field test in Meishan village, town, Lengshuijiang City tongued bell mountain, Hunan Province: sponge gourd bloom the early stage and the knot melon phase secondary spray the product that embodiment 1 is provided, working concentration is and contains selenium element 50ppm.The selenium content that detection obtains sponge gourd reaches (73 ± 4) μ g/kg, has improved nearly 8 times than control group, and mouthfeel is obviously improved.
Claims (10)
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