Selenium-rich Chinese wolfberry nutritional agent and preparation method thereof

Abstract

The invention discloses a selenium-rich Chinese wolfberry nutritional agent and a preparation method thereof, and the nutritional agent is prepared from the following components in parts by mass: 20-40 parts of calcium salt, 10-50 parts of sugar alcohol, 3-7 parts of limonene, 3-7 parts of a plant essential oil additive, 3-7 parts of an alcohol solvent, 2-6 parts of a pomegranate peel extract, 1-5 parts of an acidity regulator, 1-5 parts of polysaccharide and 0.01-1 part of a selenium nutrient. And 50 to 100 parts of water. The selenium nutrient and the sugar alcohol chelating agent are combined, so that selenium and calcium nutrients can be effectively supplemented to the Chinese wolfberry, limonene and the orange peel essential oil aid are natural plant source biological pesticides, and after the limonene and the orange peel essential oil aid are added, the effect of preventing and controlling plant diseases and insect pests of the Chinese wolfberry can be achieved while the selenium nutrient is supplemented to the Chinese wolfberry. The nutritional agent is sprayed twice after being prepared according to the preparation method, the first time is sprayed in the budding and flowering period, the second time is sprayed in the fruiting period, and the spraying amount is 9 kg / mu.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, and in particular to a selenium-enriched wolfberry nutrient and a preparation method thereof. Background Art

[0002] Selenium is one of the 14 essential trace elements for humans and animals recognized by the World Health Organization. Research results show that many diseases in the world are related to selenium deficiency. Using selenium-rich wolfberry as a carrier can safely and effectively supplement selenium nutrients.

[0003] Pure natural sugar alcohol chelating agents can increase the fruit setting rate of wolfberry, increase the weight of single fruit, enhance the ability to resist stress, and improve the quality of wolfberry fruit.

[0004] Lycium barbarum is the dried mature fruit of Lycium barbarum, a plant of the Solanaceae family. The fruit is harvested in summer and autumn when it is red, dried with hot air, and the fruit stalk is removed, or dried until the skin is wrinkled, and then sun-dried and the fruit stalk is removed. Lycium barbarum is a food and medicine approved by the Ministry of Health, and has multiple health benefits. Using Lycium barbarum as a carrier, selenium nutrients are supplemented, and through the growth and transformation of Lycium barbarum, selenium nutrients are enriched in Lycium barbarum fruits and converted into natural organic selenium that is safe and easy to absorb by the human body. It is in demand to prepare a selenium-rich Lycium barbarum nutrient. Lycium barbarum diseases and insect pests are characterized by multiple and frequent occurrence. At present, chemical agents are the main control measures, which not only lead to excessive pesticide residues in Lycium barbarum products, but also cause secondary pollution of pesticides entering the soil, posing a great threat to the safety of Lycium barbarum consumption and the agricultural ecological environment. D-limonene (D-1imonene) is orange oil extracted from orange peel using professional cold pressing technology, and is a natural plant-derived biological pesticide. The mode of action on pests is a unique physical contact killing effect. The insecticidal mechanism is to dissolve the wax layer on the surface of the pests, causing the pests to be quickly knocked down and die in an obvious state of dehydration. It has a good preventive effect on red spider mites and scale insects. Therefore, it is of great significance to the development of the wolfberry industry to combine natural plant-derived biological pesticides with selenium nutrients required by wolfberries to prepare a nutrient. Summary of the invention

[0005] 1. One of the purposes of the present invention is to provide a selenium-enriched wolfberry nutrient and a preparation method thereof. The nutrient is made of the following ingredients in parts by mass: 20-40 parts of calcium salt, 10-50 parts of sugar alcohol, 3-7 parts of limonene, 3-7 parts of plant essential oil additives, 3-7 parts of alcohol solvents, 2-6 parts of pomegranate peel extract, 1-5 parts of acidity regulator, 1-5 parts of polysaccharides, 0.01-1 parts of selenium nutrients, and 50-100 parts of water.

[0006] 2. Among them: the calcium salt of the selenium-enriched wolfberry nutrient is selected from at least one of amino acid calcium and calcium acetate.

[0007] 3. The sugar alcohol in the selenium-enriched wolfberry nutritional agent is selected from at least one of sorbitol and xylitol.

[0008] 4. The limonene in the selenium-enriched wolfberry nutrient is 92% D-limonene.

[0009] 5. The alcohol solvent in the selenium-enriched wolfberry nutrient is 95% ethanol.

[0010] 6. The specification of the pomegranate peel extract in the selenium-enriched wolfberry nutrient is 10:1.

[0011] 7. The acidity regulator of the selenium-enriched wolfberry nutrient is citric acid.

[0012] 8. The polysaccharide in the selenium-enriched wolfberry nutrient is 10% wolfberry polysaccharide.

[0013] 9. The selenium-enriched wolfberry nutrient described herein is selected from at least one of selenium-enriched edible fungus powder and selenoprotein.

[0014] 10. Furthermore, the preparation method of the selenium-enriched wolfberry nutrient is as follows: (1) First, add sugar alcohol, calcium salt, pomegranate peel extract, and soluble polysaccharide into water in sequence and stir at a constant speed until they are completely dissolved; (2) adding limonene and orange peel essential oil additives to 95% ethanol solvent, stirring thoroughly, and then adding to the solution prepared in step (1), stirring thoroughly and mixing evenly; (3) Add citric acid to the solution prepared in step (2), stir until dissolved, then add selenium nutrient, and stir at a constant speed until completely dissolved to obtain the finished product.

[0015] The second object of the present invention is to provide a method for using the selenium-enriched wolfberry nutrient. The nutrient prepared according to the preparation method is sprayed twice, the first time during the budding and flowering period, and the second time during the fruiting period, with a spraying amount of 9 kg / mu. Implementation

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only some examples of the present invention, not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0017] Example 1: A selenium-enriched wolfberry nutrient is specifically composed of the following ingredients: 20 parts of amino acid calcium, 15 parts of sorbus, 2.5 parts of D-limonene, 2.5 parts of orange peel essential oil additive, 2.5 parts of 95% ethanol, 2 parts of pomegranate peel extract, 1.5 parts of citric acid, 1.5 parts of 10% wolfberry polysaccharide, 0.03 parts of selenium-enriched edible fungus powder, and 50 parts of water.

[0018] The preparation method of the selenium-enriched wolfberry nutrient is as follows: (1) First, add sorbitol, amino acid calcium, pomegranate peel extract, and 10% wolfberry polysaccharide into water in order and stir at a constant speed until completely dissolved; (2) Add D-limonene and orange peel essential oil additives according to the amount into 95% ethanol solvent, stir thoroughly, and then add into the solution prepared in step (1), stir thoroughly and mix evenly; (3) Add citric acid to the solution prepared in step (2) according to the amount, stir until dissolved, then add selenium-rich edible fungus powder according to the amount, stir at a uniform speed until completely dissolved, and the selenium-rich wolfberry nutrient can be obtained.

[0019] Example 2 A selenium-enriched wolfberry nutrient is specifically composed of the following ingredients: 30 parts of calcium acetate, 25 parts of xylitol, 4 parts of D-limonene, 4 parts of orange peel essential oil additive, 4 parts of 95% ethanol, 3 parts of pomegranate peel extract, 2 parts of citric acid, 2 parts of 10% wolfberry polysaccharide, 0.06 parts of selenoprotein, and 80 parts of water.

[0020] The preparation method of the selenium-enriched wolfberry nutrient is as follows: (1) First, add xylitol, calcium acetate, pomegranate peel extract, and 30% wolfberry polysaccharides into water in order and stir at a constant speed until completely dissolved; (2) Add D-limonene and orange peel essential oil additives according to the amount into 95% ethanol solvent, stir thoroughly, and then add into the solution prepared in step (1), stir thoroughly and mix evenly; (3) Add citric acid to the solution prepared in step (2) according to the amount, stir until dissolved, then add selenium-rich edible fungus powder according to the amount, stir at a uniform speed until completely dissolved, and the selenium-rich wolfberry nutrient can be obtained.

[0021] Example 3 A selenium-enriched wolfberry nutrient is specifically composed of the following ingredients: 40 parts of calcium acetate, 30 parts of sorbitol, 5 parts of D-limonene, 5 parts of orange peel essential oil additive, 5 parts of 95% ethanol, 4 parts of pomegranate peel extract, 3 parts of citric acid, 3 parts of 10% wolfberry polysaccharide, 1 part of selenium-enriched edible fungus powder, and 100 parts of water.

[0022] The preparation method of the selenium-enriched wolfberry nutrient is as follows: (1) First, add sorbitol, calcium acetate, pomegranate peel extract, and 10% wolfberry polysaccharide into water in order and stir at a constant speed until completely dissolved; (2) Add D-limonene and orange peel essential oil additives according to the amount into 95% ethanol solvent, stir thoroughly, and then add into the solution prepared in step (1), stir thoroughly and mix evenly; (3) Add citric acid to the solution prepared in step (2) according to the amount, stir until dissolved, then add selenium-rich edible fungus powder according to the amount, stir at a uniform speed until completely dissolved, and the selenium-rich wolfberry nutrient can be obtained.

[0023] Example: Field trials Crop name: Wolfberry Test location: Golmud Yangtze River source selenium-rich organic wolfberry planting base The experimental design is to configure the nutrient agent according to the application amount per mu of land, and spray it on the aboveground part of the wolfberry plants where aphids occur. The spraying is divided into two times, the first spraying is in the peak period of budding and flowering, and the second spraying is in the fruiting period. The spraying amount is 9 kg / mu. Three days after spraying, the activity of aphids is observed at a fixed point and compared with the activity of aphids before spraying. After the wolfberry fruit matures, it is dried to remove debris, and three samples are randomly sampled. The average selenium content is measured according to the first method of GB 5009.63-2017, and the selenium content is compared.

[0024] Results and analysis: Statistical data are shown in Table 1 Table 1 Index data Plots Pest activity after three days Average selenium content Ordinary plot Serious pest activity 0.19mg / kg Example 3 Plot The number of insect pests has dropped significantly. According to statistics of the number of aphids in 5 locations, the insect population reduction rate is 71.47%. 0.40mg / kg It can be seen from Table 1 that the wolfberry pests in the base plot treated with the nutrient agent of the present invention were controlled to a certain extent, and the quality of the processed fruit was better than that of the ordinary plots in the base. It was determined that the selenium content of the wolfberry in the treated plot was higher than that of the ordinary plots in the base.

[0025] In summary, the selenium-enriched wolfberry nutrient is simple to prepare, has significant effects, and has broad application prospects.

Claims

1. A selenium-enriched wolfberry nutritional agent, characterized by: It is composed of the following ingredients in parts by mass: 20-40 parts of calcium salt, 10-50 parts of sugar alcohol, 3-7 parts of limonene, 3-7 parts of plant essential oil additives, 3-7 parts of alcohol solvents, 2-6 parts of pomegranate peel extract, 1-5 parts of acidity regulator, 1-5 parts of polysaccharides, 0.01-1 parts of selenium nutrients, and 50-100 parts of water.

2. A selenium-enriched wolfberry nutritional agent as claimed in claim 1, characterized in that: The calcium salt is selected from at least one of amino acid calcium and calcium acetate.

3. A selenium-enriched wolfberry nutritional agent as claimed in claim 1, characterized in that: The sugar alcohol is selected from at least one of sorbitol and xylitol.

4. A selenium-enriched wolfberry nutritional agent as claimed in claim 1, characterized in that: The limonene is 92% D-limonene.

5. A selenium-enriched wolfberry nutritional agent as claimed in claim 1, characterized in that: The alcohol solvent is 95% ethanol.

6. A selenium-enriched wolfberry nutritional agent as claimed in claim 1, characterized in that: The specification of the pomegranate peel extract is 10:

1.

7. A selenium-enriched wolfberry nutritional agent as claimed in claim 1, characterized in that: The acidity regulator is citric acid.

8. The selenium-enriched wolfberry nutritional agent according to claim 1, characterized in that: The polysaccharide is 10% wolfberry polysaccharide.

9. A selenium-enriched wolfberry nutritional agent as claimed in claim 1, characterized in that: The selenium nutrient is selected from at least one of selenium-enriched edible fungus powder and selenoprotein.

10. The method for preparing any of the selenium-enriched wolfberry nutritional agents described in claims 1-9, characterized in that: (1) First, add sugar alcohol, calcium salt, pomegranate peel extract, and soluble polysaccharide into water in sequence and stir at a constant speed until they are completely dissolved; (2) adding limonene and orange peel essential oil additives to 95% ethanol solvent, stirring until completely dissolved, and then adding to the solution prepared in step (1) and stirring to mix well; (3) Add citric acid to the solution prepared in step (2) and stir evenly, then add selenium nutrient and stir thoroughly to obtain the finished product.