CN103583216A - Method for cultivating high-selenium corn and method for preparing nutrition powder of high-selenium corn - Google Patents
Method for cultivating high-selenium corn and method for preparing nutrition powder of high-selenium corn Download PDFInfo
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Abstract
The invention discloses a method for cultivating high-selenium corn and a method for preparing nutrition powder of the high-selenium corn. According to the method for cultivating the high-selenium corn, firstly the variety of the corn is selected, the land is selected and prepared, the corn is planted, and organic selenium is sprayed in the heading period, the formation period of grains and the milk-ripe period at a time respectively. The method for preparing the nutrition powder of the high-selenium corn comprises the steps that husks and germs of the high-selenium corn are removed, then the corn is milled and smashed at a low speed of 1400r/min to obtain corn powder, amylase enzymolysis, protease enzymolysis and vacuum spraying drying are conducted in sequence, and then the high-selenium corn powder is mixed with a composite nutrient to obtain the nutrition powder of the high-selenium corn. By means of the method for cultivating the high-selenium corn and the method for preparing the nutrition powder of the high-selenium corn, the selenium content of the high-selenium corn can reach more than 4mg/kg and is stable. The rich-selenium cultivation method is easy to operate, is low in cost, has certain generalization performance and can process and prepare the nutrition powder of the high-selenium corn. The nutrition powder of the high-selenium corn has high organic selenium content and balanced nutrition, and plays a role in regulating the nutrition of the youth and the old.
Description
Technical field
The present invention relates to a kind of high selenium cultivating method of crop, and provide a kind of high selenium corn of take the plantation of this cultivation method to prepare the method for high selenium corn nutrient powder as raw material.
Background technology
Selenium is one of essential trace element of human body, and selenium has the good reputations such as " anticancer king ", " spark of life ".Methyl seleninic acid has following effect: 1. anti-cancer and cancer-preventing, anti-oxidant, anti-ageing 3. protections of inhibition tumour 2., reparation, activating cell 4. improve body immunity 5. detoxication and toxicant eliminating functions, radioresistance 6. protection cardiovascular and cerebrovascular and livers.The resident's cancer that lacks selenium area, cardiovascular disease, Keshan disease, the relative district rich in selenium of the incidences of disease such as Kaschin-Beck disease is higher.Selenium is inhomogeneous at natural distributed pole, the area of China 72% is in lacking selenium area, the every day that Chinese Soclety of Nutrition is recommended, the quantity delivered of selenium was 50-250ug/d in meals, the quantity delivered that China lacks selenium in the meals of selenium area be 26ug/d ，Li Chinese Soclety of Nutrition recommend every day selenium in meals minimum quantity delivered 50ug all poor very far away.For improving the whole people's fitness, exploitation high-quality, moderate cost, mends selenium mode Se-rich farm products easily, advances whole people's life-stylize to mend selenium very urgent.
Current resident mends selenium and is divided into inorganic selenium and two kinds of modes of Organic Selenium, inorganic selenium is generally selenate, but the toxicity of selenate is larger, improper use meeting produces serious adverse consequences, and Organic Selenium has advantages of that absorption ratio is high, biologically active is strong, toxicity is low and environmental pollution is little.The selenium supplementary form of safety in order to obtain human body effectively, people take the means of biological transformation that inorganic selenium is converted into Organic Selenium, and the mode of taking plant physiology to transform is generally taked to execute selenium fertilizer to crop foliage-spray or filling, and selenium is enriched to and is done in object.Microbial conversion is also conventional method, with saccharomycete, when cultivating, inorganic selenium is converted into Organic Selenium, and Se-enriched yeast has become the food source supplementary of selenium.There are variation, selenium-rich rice, rich selenium oil, selenium yeast, selenium-enriched edible mushroom, selenium Fructus Hordei Germinatus, Se-enriched honey etc. in the form of the agricultural byproducts of human body Selenium Supplement.But the outstanding problem existing is agricultural product quality poor controllability, and Se content is not high and unstable.Industry selenium product cost is high, and side effect is large, and price is quite high, and consumption of resident is limited in one's ability, and market is difficult to promote, and the market share is limited.Therefore, for the exploitation of high selenium corn nutrient powder, solve its corresponding cultivation techniques, stablize and improve Se content, guarantee output and the quality of rich selenium raw material, reduce production costs.Being the key that realizes its Organic Selenium agricultural byproducts scale and seriation exploitation, is also to promote the Important Action that the whole people mend selenium.
Corn contains abundant nutrient, the ， U.S. and some other developed country in recent years, and corn has been listed in the first health food in cereal, is called as " gold crop ".Finding that after deliberation selenium-rich corn has hypotensive, reducing blood lipid, anti arteriosclerosis, prevention intestinal cancer, beautifying face and moistering lotion, the various health care functions such as delay senility, is also diabetes patient's suitable good merchantable brand.With regard to current Se-rich farm products exploitation situation, the Se content of selenium-rich corn powder is 0.1-0.3mg/kg, with reference to Hubei Province's provincial standard: DB42/211-2002 selenium-enriched food mark, it signs paddy, broomcorn millet based article >=0.1mg/kg.The selenium-rich corn powder occurring on market all can reach rich selenium standard, but research and industrialization for high selenium corn nutrient powder are not yet reported, the corn that utilizes high selenium Technique for Corn Cultivation to produce, the inspection center of detecting qualification through having is detected, the Se content >=4.0mg/kg of high selenium corn nutrient powder, relatively common selenium-rich corn powder, Se content improves 10-40 doubly, the features such as it is stable that high selenium corn nutrient powder has Se content, and amount is few, and se complementary effect is good.Everyone every day, the edible high selenium corn flour of 12.5g-62.5g can therefrom obtain the selenium of 50-250ug, can guarantee the human body every day of the demand to selenium.And it is simple and convenient to mend selenium mode, by warm water, brews.
Summary of the invention
The object of the invention is to the large-scale production for high selenium corn, improve Se content and stablize the technical barrier that Se content is relevant, provide a kind of simple to operate, efficiently, be adapted at the high selenium cultivating method of crop of selenium-rich soil and poor selenium soil cultivation, the method sprays the Organic Selenium of different amounts at corn different growing stage, by Foliage Absorption, external source selenium is transformed and with selenoprotein, selenium polysaccharide, the forms such as seleno-amino acids are stored in seed, and by continuous bioconcentration, it is high that final production goes out Se content, the corn that Se content is stable, from source, guaranteed the content of selenium corn, again through processing and be configured to high selenium corn nutrient powder, for this reason, also provide a kind of high selenium corn of take the plantation of this cultivation method to prepare the method for high selenium corn nutrient powder as raw material.
For achieving the above object, the invention provides following technical scheme:
A selenium cultivating method of crop, comprises the following steps:
(1) select corn variety, the whole ground of selection of land, plantation;
(2) Foliar application of selenium for the first time: the period that sprays, the filigree of the gynoecium of plant was extracted 1-3cm out from bract for the phase of reeling off raw silk from cocoons, and was made into the fertilizer solution containing selenium 300-340ppm with Organic Selenium as selenium source, and the amount of spraying is 800-1000kg/ hm
2;
(3) Foliar application of selenium for the second time: be grain filling period the period of spraying, the middle part of the fruit ear in plant seed volume basically forms, and endosperm becomes clear liquid shape, with Organic Selenium, as selenium source, is made into the fertilizer solution containing selenium 350-450ppm, and the amount of spraying is 800-1000kg/ hm
2;
(4) Foliar application of selenium for the third time: be milk ripe stage the period of spraying, plant fruit ear middle part seed dry weight increases sharply and substantially builds up, and endosperm becomes pasty state, with Organic Selenium, as selenium source, is made into the fertilizer solution containing selenium 450-500ppm, and the amount of spraying is 800-1000kg/hm2.
As the further scheme of the present invention: require according to the actual conditions of various places in step (1), suit measures to local conditions to select breeding, and accomplish breeding, good method is supporting, the yield potential of competence exertion breeding; Hunan Province generally should select three Norths No. six, No. nine, three Norths, beautiful 3102, beautiful l9 difficult to understand difficult to understand, positive beautiful No. 8, the Lushui River jade 13, long beautiful 13, Nongda108, Zheng Dan 908, Yuyu No.27 etc.; The whole ground of selection of land: select soil layer is deep, physical features is comparatively smooth nonirrigated farmland or ground, gentle slope, require that topsoil soils nutrient content is high, loosing soil, permeability is good, fertilizer conservation outlet capacity is strong.
As the further scheme of the present invention: in step (1), (2) and (3), execute selenium after selecting cloudy day or fine day 16:00, require vaporific even sprinkling.
The high selenium corn of described high selenium cultivating method of crop plantation is prepared the method for high selenium corn nutrient powder as raw material, comprises the following steps:
1) by the decortication of high selenium corn, de-embryo, and adopt the pulverizing of milling of the low speed of 1000-1800r/min, obtain 200-300 object corn flour; The low speed of employing 1400r/min is milled to pulverize and has been avoided traditional large scale industry to produce high temperature, the destruction of high pressure to corn nourishment and quality producing, and has retained to greatest extent the nutrition of corn flour;
2) amylase enzymolysis: corn flour and water are put into reactor with the weight ratio of 1:3-5 and stir, and be heated to 70-75 ℃, then add the α-amylase that accounts for corn flour weight 0.05-0.2% to carry out enzymolysis, be cooled to 40-45 ℃ after enzymolysis processing 20-40min;
3) protease hydrolyzed: add the protease that accounts for corn flour weight 0.05-0.2% to carry out enzymolysis, enzymolysis processing 60-120min, obtains the corn flour liquid after enzymolysis;
4) vacuum spray drying: corn flour liquid is prepared into high selenium corn flour after vacuum drying;
5) prepare high selenium corn nutrient powder: with the high selenium corn flour of 1kg, calculate, add the composite nutrient of 0.005-0.02kg.
As the further scheme of the present invention: adopt the pulverizing of milling of the low speed of 1400r/min in step 1).
As the further scheme of the present invention: step 2), corn flour and water are put into reactor with the weight ratio of 1:4 and stir, and be heated to 70-75 ℃, add again the α-amylase that accounts for corn flour weight 0.1% to carry out enzymolysis, after enzymolysis processing 30min, be cooled to 40-45 ℃.
As the further scheme of the present invention: add the protease that accounts for corn flour weight 0.1% to carry out enzymolysis, enzymolysis processing 90min in step 3).
As the further scheme of the present invention: in step 5), contain 200mg vitamin A, 120mg vitamin D, 3.2g vitamin C, 1180mg vitamin E, 60mg carotin, 280mg ferrous sulfate, 140mg zinc gluconate, 1.5g magnesium sulfate and 3.32g calcium lactate in every 0.01kg composite nutrient.
Compared with prior art, the invention has the beneficial effects as follows: the present invention can make high selenium corn selenium content reach and be greater than 4mg/kg, Se content is stable, selenium-enriching cultivation method is simple to operate, with low cost, have certain replicability and be prepared into high selenium corn nutrient powder by processing, it is high and balanced in nutrition that this powder has organic selenium content, for young and old nutrition, has certain nutrition recuperating effect.
Accompanying drawing explanation
Fig. 1 is high selenium maize culture and flow process chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The field cultivation test of high selenium corn
Test site: parent's selenium unit's selenium-rich corn proving ground, Pingjiang county Hunan province
Test method:
Processed group: the phase of reeling off raw silk from cocoons, grain filling period, milk ripe stage at corn spray 320ppm, 400ppm, the Organic Selenium solution of 480ppm, the every mu of amount of spraying 45kg, executes selenium after generally selecting cloudy day or fine day 16:00, require cloud point tiny, spray evenly;
Control group: the phase of reeling off raw silk from cocoons, grain filling period, milk ripe stage at corn spray clear water, the every mu of amount of spraying is 45kg.
Result of the test: after corn maturation, threshing crushing is that 150-200 object corn flour sample presentation detects to Hunan Province food analogue analysis center, and the content of selenium is 4.2mg/kg, and the content of control group selenium is 0.078mg/kg.
Embodiment 1
The preparation of high selenium corn nutrient powder
Take that to produce 1 ton high selenium corn nutrient powder be example, according to the constituent content providing below, be configured
1) first prepare 0.01kg composite nutrient, in every 0.01kg composite nutrient, contain 200mg vitamin A, 120mg vitamin D, 3.2g vitamin C, 1180mg vitamin E, 60mg carotin, 280mg ferrous sulfate, 140mg zinc gluconate, 1.5g magnesium sulfate and 3.32g calcium lactate.
2) then composite nutrient is added in the high selenium corn flour of 990kg, through stirring, then through sterilization treatment, can pack the every parcel of composition 50g.Brew a parcel every day, can supplement the Organic Selenium of 200 μ g.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (7)
1. a high selenium cultivating method of crop, is characterized in that, comprises the following steps:
(1) select corn variety, the whole ground of selection of land, plantation;
(2) Foliar application of selenium for the first time: the period that sprays, the filigree of the gynoecium of plant was extracted 1-3cm out from bract for the phase of reeling off raw silk from cocoons, and was made into the fertilizer solution containing selenium 300-340ppm with Organic Selenium as selenium source, and the amount of spraying is 800-1000kg/ hm
2;
(3) Foliar application of selenium for the second time: be grain filling period the period of spraying, the middle part of the fruit ear in plant seed volume basically forms, and endosperm becomes clear liquid shape, with Organic Selenium, as selenium source, is made into the fertilizer solution containing selenium 350-450ppm, and the amount of spraying is 800-1000kg/ hm
2;
(4) Foliar application of selenium for the third time: be milk ripe stage the period of spraying, plant fruit ear middle part seed dry weight increases sharply and substantially builds up, and endosperm becomes pasty state, with Organic Selenium, as selenium source, is made into the fertilizer solution containing selenium 450-500ppm, and the amount of spraying is 800-1000kg/hm2.
2. high selenium cultivating method of crop according to claim 1, is characterized in that, in step (1), (2) and (3), executes selenium after selecting cloudy day or fine day 16:00, requires vaporific even sprinkling.
3. the high selenium corn of high selenium cultivating method of crop plantation described in claim 1-2 of take is prepared the method for high selenium corn nutrient powder as raw material, comprises the following steps:
By the decortication of high selenium corn, de-embryo, and adopt the pulverizing of milling of the low speed of 1000-1800r/min, obtain 200-300 object corn flour; The low speed of employing 1400r/min is milled to pulverize and has been avoided traditional large scale industry to produce high temperature, the destruction of high pressure to corn nourishment and quality producing, and has retained to greatest extent the nutrition of corn flour;
Amylase enzymolysis: corn flour and water are put into reactor with the weight ratio of 1:3-5 and stir, and be heated to 70-75 ℃, then add the α-amylase that accounts for corn flour weight 0.05-0.2% to carry out enzymolysis, be cooled to 40-45 ℃ after enzymolysis processing 20-40min;
Protease hydrolyzed: add the protease that accounts for corn flour weight 0.05-0.2% to carry out enzymolysis, enzymolysis processing 60-120min, obtains the corn flour liquid after enzymolysis;
Vacuum spray drying: corn flour liquid is prepared into high selenium corn flour after vacuum drying;
Prepare high selenium corn nutrient powder: with the high selenium corn flour of 1kg, calculate, add the composite nutrient of 0.005-0.02kg.
4. the method for the high selenium corn nutrient powder of preparation according to claim 3, is characterized in that, adopts the pulverizing of milling of the low speed of 1400r/min in step 1).
5. the method for the high selenium corn nutrient powder of preparation according to claim 3, it is characterized in that, step 2) in, corn flour and water being put into reactor with the weight ratio of 1:4 stirs, and be heated to 70-75 ℃, add again the α-amylase that accounts for corn flour weight 0.1% to carry out enzymolysis, after enzymolysis processing 30min, be cooled to 40-45 ℃.
6. the method for the high selenium corn nutrient powder of preparation according to claim 3, is characterized in that, adds the protease that accounts for corn flour weight 0.1% to carry out enzymolysis, enzymolysis processing 90min in step 3).
7. the method for the high selenium corn nutrient powder of preparation according to claim 3, it is characterized in that, in step 5), in every 0.01kg composite nutrient, contain 200mg vitamin A, 120mg vitamin D, 3.2g vitamin C, 1180mg vitamin E, 60mg carotin, 280mg ferrous sulfate, 140mg zinc gluconate, 1.5g magnesium sulfate and 3.32g lactic acid.
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| CN201310593495.9A CN103583216A (en) | 2013-11-22 | 2013-11-22 | Method for cultivating high-selenium corn and method for preparing nutrition powder of high-selenium corn |
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Cited By (6)
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| CN103876021A (en) * | 2014-02-25 | 2014-06-25 | 安徽硒谷生物科技有限公司 | Preparation method of instant selenium-enriched corn flour |
| CN104380961A (en) * | 2014-10-30 | 2015-03-04 | 灵璧县林汇家禽育种有限责任公司 | Planting method for selenium-enriched maize |
| CN107467468A (en) * | 2017-09-20 | 2017-12-15 | 苏州硒泰克生物科技有限公司 | Selenium-rich instant corn coarse cereals powder solid beverage and preparation method thereof |
| CN107787788A (en) * | 2017-12-12 | 2018-03-13 | 宁夏和谐富硒食品高科技有限公司 | A kind of processing of selenium-rich nutritive green corn Rong's round-grained rice and its production method |
| CN108936241A (en) * | 2018-06-27 | 2018-12-07 | 安徽过湾农业科技有限公司 | A kind of production method of the ripe full powder of organic selenium-rich corn |
| CN111248039A (en) * | 2020-03-05 | 2020-06-09 | 辽宁大学 | Cultivation method for quantitatively enriching organic selenium in black corn |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876021A (en) * | 2014-02-25 | 2014-06-25 | 安徽硒谷生物科技有限公司 | Preparation method of instant selenium-enriched corn flour |
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| CN107467468A (en) * | 2017-09-20 | 2017-12-15 | 苏州硒泰克生物科技有限公司 | Selenium-rich instant corn coarse cereals powder solid beverage and preparation method thereof |
| CN107787788A (en) * | 2017-12-12 | 2018-03-13 | 宁夏和谐富硒食品高科技有限公司 | A kind of processing of selenium-rich nutritive green corn Rong's round-grained rice and its production method |
| CN108936241A (en) * | 2018-06-27 | 2018-12-07 | 安徽过湾农业科技有限公司 | A kind of production method of the ripe full powder of organic selenium-rich corn |
| CN111248039A (en) * | 2020-03-05 | 2020-06-09 | 辽宁大学 | Cultivation method for quantitatively enriching organic selenium in black corn |
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Application publication date: 20140219 |