Soilless culture nutrient solution formula and culture method of selenium-rich broccoli

A technology of soilless cultivation and broccoli, applied in soilless cultivation, methods based on microorganisms, cultivation, etc., can solve the problems of low absorption efficiency and low selenium content of the human body, so as to avoid being absorbed by the human body, improve transformation efficiency, The effect that improves the absorption effect

Inactive Publication Date: 2018-10-12
重庆善硒科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low selenium content and low human body absorption efficiency in the prior art, the present invention provides a method for obtaining high selenium-enriched broccoli products by breaking the yeast selenium wall and using it as a nutrient solution for crop soilless cultivation. method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This example provides a soilless cultivation method for high selenium-enriched broccoli, which is mainly to convert the existing inorganic selenium into organic selenium, and release the organic selenium to cultivate broccoli so that it can be directly absorbed by the human body and has an improved The stability of selenium-rich food.

[0036] Specific steps are as follows:

[0037] 1. First, prepare the intermediate product yeast selenium.

[0038] Yeast selenium is the addition of selenium element in the process of cultivating yeast. When the yeast grows, it absorbs and utilizes selenium, so that selenium can be organically combined with protein and polysaccharide in the yeast body and transformed into biological selenium, thereby eliminating the chemical selenium (such as sodium selenite). The toxic side effects and gastrointestinal irritation of the human body enable selenium to be absorbed and utilized by the human body more efficiently and safely. Selenium-enric...

Embodiment 2

[0048] The present embodiment optimizes and limits on the basis of above-mentioned embodiment 1, and the preparation method of described broccoli soilless culture substrate is as follows:

[0049] Put straw, sawdust and rice bran into the crusher, crush and sieve to get 40-60 mesh debris as the mixed organic matrix; then select sand, vermiculite, perlite and peat to mix, and the content of each component is the same Or close to it, put the mixed material into a ball mill for grinding, and pass the ground material through a 12-mesh sieve to obtain particles as the inorganic matrix. The organic matrix and the inorganic matrix are mixed according to the ratio of 4:5, and then the supernatant taken out is added, and the mass ratio of the supernatant to the matrix is ​​1:10.

[0050] Transplant broccoli seedlings cultivated in the laboratory in the prepared matrix, and carry out the fertilizer and water management steps in the soilless cultivation method of normal broccoli, wherein...

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Abstract

The invention discloses a soilless culture method of selenium-rich broccoli. The soilless culture method of the selenium-rich broccoli includes the following steps that 1, selenium yeast is prepared;2, the prepared selenium yeast is subjected to wall breaking through enzyme hydrolysis to obtain hydrolysate; 3, the hydrolysate is centrifuged to obtain supernatant, and the supernatant is adopted toprepare a nutrition medium; 4, the nutrition medium is used for conducting soilless culture on broccoli to obtain the selenium-rich broccoli. A soilless culture nutrient solution formula of the selenium-rich broccoli includes potassium nitrate, calcium nitrate, ammonium nitrate, calcium superphosphate, boric acid, EDTA chelated iron, EDTA chelated zinc, the selenium yeast broken-wall supernatantand water. According to the soilless culture method of the selenium-rich broccoli, by converting inorganic selenium into organic selenium in a yeast culture mode and using the selenium yeast for preparing a nutrient solution to culture the selenium-rich broccoli, the conversion efficiency of selenium is effectively improved, and through plant absorption, selenium-containing protein is converted into effective selenium components capable of being absorbed by the human body.

Description

technical field [0001] The invention belongs to the technical field, and in particular relates to a method for cultivating substrates and nutrient solutions using selenium-rich substances. Background technique [0002] Selenium-rich agricultural products, that is, agricultural products rich in selenium, selenium can improve human immunity, promote the proliferation of lymphocytes and the synthesis of antibodies and immunoglobulins. For example, selenium-enriched rice, selenium-enriched fungus, and 100 micrograms of selenium-enriched corn flour are all selenium-enriched agricultural products. Selenium is a chemical element with the chemical symbol Se, a non-metal. It can be used as a photosensitive material, a catalyst in the electrolytic manganese industry, an essential nutrient element for animals and a beneficial nutrient element for plants, etc. Selenium is also an essential trace element for the human body. Selenium participates in the synthesis of various selenium-con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00C05C11/00C05G3/00C05G1/00A01G24/12A01G24/15A01G24/28A01G24/22A01G24/23A01G24/25A01G24/20C12P9/00C12N1/16C12R1/645
CPCA01G24/12A01G24/15A01G24/20A01G24/22A01G24/23A01G24/25A01G24/28A01G31/00C05B1/02C05C11/00C05G3/00C05G5/23C12N1/16C12P9/00C05D9/00C05F5/002C05F11/00C05F11/02C05C1/00C05C5/02C05C5/04C05D9/02Y02P60/21
Inventor 曹型勇曹双媛
Owner 重庆善硒科技有限公司
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