Preparation of chitosamine-selenium nanometer trace-element nutrition regulator

A nutritional regulator and trace element technology, applied in food preparation, sulfur/selenium/tellurium active ingredients, food science, etc., can solve problems such as poor absorption effect, reduce molecular weight, improve material antioxidant capacity, and improve absorption effect of effect

Inactive Publication Date: 2012-07-25
LIAONING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a preparation method, compounding chitosan and selenium to make a nano-trace element nutritional regulator, which overc

Method used

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  • Preparation of chitosamine-selenium nanometer trace-element nutrition regulator
  • Preparation of chitosamine-selenium nanometer trace-element nutrition regulator
  • Preparation of chitosamine-selenium nanometer trace-element nutrition regulator

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0052] Example 1

[0053] ① Preparation solution: Dissolve sodium selenite in a 75% ethanol solution to prepare a 12.5% ​​sodium selenite solution; weigh chitosan and dissolve it in distilled water to prepare 8% by mass. Solution

[0054] ②Take 50ml of chitosan solution and 40ml of sodium selenite solution prepared in step ①, mix the two, add 10mg of surfactant sodium dodecyl sulfonate, and stir magnetically for 30 minutes;

[0055] ③ Pulse ultrasound for 15 minutes at room temperature to obtain a cross-linked and uniformly dispersed chitosan-selenium nanosphere suspension.

Example Embodiment

[0056] Example 2 Experimental effects of leaf spray and root spray reagent

[0057] Leaf spray: Foliar fertilization is an indispensable auxiliary measure in fruit fertilizer implementation, and it has been used as a routine measure in the production of high-quality fruit. The nutrient absorption of foliar spraying is faster than soil fertilization, which can overcome the nutrient symptoms of fruit trees faster. The dosage is small and the nutrient absorption and utilization rate is high. It is not affected by the nutrient absorption center and can meet or regulate the urgent needs of the tree during the critical period of fertilizer. Overcome the shortcomings of slow nutrient absorption by roots, and increase yield and quality. Compared with soil fertilization, there is no fixed effect of soil on nutrients, which leads to reduced availability and loss of soil leaching.

[0058] Root application: The root fertilization should be mainly at the edge of the crown projection and a lit...

Example Embodiment

[0066] Example 3 Regulation of different concentrations of reagents on fruit growth

[0067] ①The method of spraying with leaves uses different concentrations of reagents and blanks as controls, and the final maturity is observed and recorded as follows;

[0068] ②The method of spraying with leaves uses different concentrations of reagents and blanks as controls. Observe weekly and record as follows;

[0069] Table 3 The method of spraying with leaves is compared with different concentrations of reagents and blanks as controls after maturation

[0070]

[0071] Table 4 The method of spraying with leaves is compared with different concentrations of reagents and blanks as controls

[0072]

[0073] Experimental conclusion: In the same class of fruit trees, spraying of different concentrations of reagents has different effects on fruit growth regulation. From Table 3 and Table 4, we can see that the effect of concentration 2 is even better.

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Abstract

The invention relates to a preparation method of a nanometer chitosamine-selenium preparation. The method comprises the steps of: dissolving sodium selenite in an ethanol solution of which the mass fraction is 75% to prepare a sodium selenite solution of which the mass fraction is 12.5%; weighing chitosamine and dissolving in distilled water to prepare a chitosamine solution of which the mass fraction is 8%; mixing 50ml of chitosamine solution with 40ml of sodium selenite solution, adding 10mg of surfactant and magnetically stirring for 30minutes; and carrying out pulsed ultrasound for 15minutes at a room temperature to obtain a chitosamine-selenium nanometer microsphere turbid liquid which is subjected to crosslinking and uniformly dispersion. The preparation method of a plant growth regulator chitosamine-selenium nanometer trace-element nutrition regulator is simple to operate, low in cost, easy in reaction control and high in product quality, and has no pollution; and the prepared nanometer preparation can be used for regulation of agricultural plant growth.

Description

technical field [0001] The invention relates to a chitosan-selenium nano-trace element nutritional regulator and its preparation. Background technique [0002] Chitosan is called by scientists as the sixth vital element after protein, fat, sugar, minerals and vitamins. It is an important nutrient necessary to enhance human health. [0003] [0004] Chitosan (CHITOSAN), scientific name (1.4)-2-amino-2-deoxy-β-D-glucan, is a polysaccharide composed of glucosamine and acetylglucosamine polymers, and the unit molecular formula of chitosan is C 6 h 11 NO 4 , The unit molecular weight is 161. Chitosan can be obtained by partial deacetylation of chitin in the carapace, and also exists naturally in some microorganisms and yeasts. The term chitosan refers to a series of chitosan polymers with different molecular weight (50kDa-2000kDa), viscosity and degree of deacetylation (40%-98%). Chitosan is insoluble in neutral and alkaline solutions, but forms salts with inorganic and...

Claims

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Application Information

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IPC IPC(8): C05G3/00A61K33/04A61P3/02A23L1/29A23L33/00
Inventor 吕建洲晏艳李华
Owner LIAONING NORMAL UNIVERSITY
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