Selenium sustained-release edible fungus additive for selenium-rich culturing of edible fungus and preparation method thereof

A technology of edible fungi and additives, applied in the direction of botany equipment and methods, applications, fertilizer mixtures, etc., can solve the problems of poor slow-release effect and low adsorption efficiency, and achieve the effects of stable release, improved absorption rate, and improved utilization efficiency

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to apply the nitrogen fertilizer slow-release technology to the selenium bionutrient enhancement of edible fungi, and solve the defects of low adsorption efficiency and poor slow-release effect of modified attapulgite on selenium sources, the invention provides a selenium-enriched edible fungus Cultivated selenium slow-release edible fungus additive method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Preparation and Application of Selenium Slow-release Edible Fungi Additive Containing Low Concentration Sodium Selenite

[0042] (1) Preparation of the selenium slow-release edible mushroom additive containing low-concentration sodium selenite:

[0043] Take by weighing the weight ratio of sodium selenite: attapulgite: β-cyclodextrin=1: 979: 20, and add an appropriate amount of water at room temperature and stir evenly after co-dissolution, then shake and granulate. ℃ drying to form the low-concentration (456.6 mg / kg) selenium slow-release edible fungus additive.

[0044] (2) Application of selenium slow-release additive containing low concentration sodium selenite:

[0045] Mix the above-mentioned selenium slow-release edible fungus additive containing sodium selenite selenium source and common Pleurotus edodes bacteria base according to the ratio of 1:99 and 5:95 respectively, and inoculate Pleurotus edodes strains, and set a blank In contrast, with the s...

Embodiment 2

[0046] Example 2: Preparation and Application of Selenium Slow-release Edible Mushroom Additive Containing High Concentration Sodium Selenite

[0047] (1) Preparation of the selenium slow-release edible mushroom additive containing high-concentration sodium selenite:

[0048] Weigh the weight ratio of sodium selenite: modified attapulgite: β-cyclodextrin=10:970:20, and add an appropriate amount of water to dissolve at room temperature and stir evenly, then shake and granulate, after granulation Dry at 70 DEG C to form the high-concentration (4566 mg / kg) selenium slow-release edible fungus additive.

[0049] (2) Application of selenium slow-release edible mushroom additive containing high concentration of sodium selenite:

[0050] Mix the above-mentioned selenium slow-release edible fungus additive used for selenium-enriched cultivation of edible fungi with the common Pleurotus pleurotus bacteria base according to the ratio of 1:99 and 5:95 respectively, and inoculate Pleurotu...

Embodiment 3

[0051] Embodiment 3: Preparation and application of selenium slow-release edible mushroom additive containing low concentration sodium selenate

[0052] (1) Preparation of the selenium slow-release edible fungus additive containing low-concentration sodium selenate:

[0053] Weigh the weight ratio of sodium selenate: modified attapulgite: β-cyclodextrin = 1: 979: 20, and add an appropriate amount of water to dissolve at room temperature and stir evenly, then shake and granulate. Dry at 70° C. to form the low-concentration (418.8 mg / kg) selenium slow-release edible fungus additive.

[0054] (2) Application of selenium slow-release edible mushroom additive containing low concentration sodium selenate:

[0055] Mix the above-mentioned sodium selenate source selenium slow-release edible fungus additive with common Pleurotus edodes fungus at a ratio of 1:99 and 5:95, respectively, and inoculate Pleurotus pleurotus strains, and set a blank control to With the same management measu...

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Abstract

The invention discloses a selenium sustained-release edible fungus additive for selenium-rich culturing of edible fungus. The selenium sustained-release edible fungus additive is characterized by comprising the following components in parts by weight: 1-20 parts of selenium source, 950-1000 parts of attapulgite clay or modified attapulgite clay and 5-40 parts of beta-cyclodextrin, wherein the modified attapulgite clay is one-dimensional nano-state attapulgite clay which is modified by hydrogen type ion source (H<+>) irradiation. The composition achieves a stable release condition after 2-3 hours in a solution state, the selenium concentration in the solution state can achieve 40-60% of the original selenium concentration in the selenium sustained-release additive, and the stable release condition can be sustained for 90-120 days.

Description

technical field [0001] The invention relates to an additive preparation technology, in particular to the preparation and application of a selenium slow-release edible fungus additive used for selenium-enriched cultivation of edible fungi. Background technique [0002] Selenium is an essential trace element in humans and animals. It is the active center that constitutes as many as 23 functional proteins such as glutathione peroxidase (GSH-Px) and selenoprotein P. It has the following effects: (1) remove Peroxides and free radicals can protect cell structure and function from interference and damage, and delay aging; (2) accelerate the metabolism of carcinogens, promote DNA damage repair, and reduce the incidence of cancer; (3) antagonize toxic substances in the body and reduce their (4) Enhance the body's cellular immune function and improve the body's immunity. A severe deficiency of selenium will directly lead to Keshan disease and Kaschin-Beck disease. Among them, Keshan ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/04C05G3/00
Inventor 袁林喜罗磊
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