Method for cultivating oyster mushroom uniformly rich in selenium with sodium selenite as selenium source

A technology of sodium selenite and selenium enrichment, applied in the field of biotransformation of selenium resources, can solve the problems of uneven selenium content in batches, large fluctuations in selenium enrichment of fruit bodies, etc. Effect

Inactive Publication Date: 2011-08-17
SUZHOU SETEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a uniform selenium-enriched cultivation method of Pleurotus ostreatus, which solves the inhomogeneous selenium content batches among the strains of Pleurotus ostreatus after selenium-enriched cultivation in the prior art or the inhomogeneous selenium content of each strain of Pleurotus ostreatus. Problems such as large fluctuations in selenium enrichment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1 Selenium-enriched Pleurotus ostreatus cultivation embodiment

[0061] (1) Preparation of selenium-enriched oyster mushroom additive:

[0062] (1) Preparation of selenium-enriched oyster mushroom additive:

[0063] ①The common natural cottonseed hulls are screened, dried, crushed to a particle size of 0.005-0.1 mm, and mixed evenly, and the formula of the cultivation material additive required for the cultivation of selenium-enriched oyster mushrooms is designed.

[0064] According to the mass ratio, the additive formula is as follows:

[0065] Cottonseed hulls 100 parts

[0066] Sodium selenite 0.0011~0.0022 parts;

[0067] ②Grind the above sodium selenite to a powder with a particle size of 0.005-0.1mm, and mix it with cottonseed hulls thoroughly to prepare a mixture with a particle size of less than 0.1mm and a selenium content in the range of 5-10mg / kg.

[0068] ③ Process and granulate the above mixture to make it into particles with different partic...

Embodiment 2

[0075] Embodiment 2 Selenium-enriched Pleurotus ostreatus cultivation embodiment

[0076] (1) Preparation of selenium-enriched oyster mushroom additive:

[0077] ①The common natural cottonseed hulls are screened, dried, crushed to a particle size of 0.005-0.1 mm, and mixed evenly, and the formula of the cultivation material additive required for the cultivation of selenium-enriched oyster mushrooms is designed.

[0078] According to the mass ratio, the additive formula is as follows:

[0079] Cottonseed hulls 100 parts

[0080] Sodium selenite 0.0022~0.011 parts;

[0081] ② Grind the above sodium selenite to a powder with a particle size of 0.005-0.1mm, and mix it with cottonseed hulls thoroughly to obtain a mixture with a particle size below 0.1mm and a selenium content in the range of 10-50mg / kg.

[0082] ③ Process and granulate the above mixture to make it into particles with different particle sizes, and the particle sizes are controlled within the ranges of 0.005-0.1mm...

Embodiment 3

[0089] Embodiment 3 Selenium-enriched Pleurotus ostreatus cultivation embodiment

[0090] (1) Preparation of selenium-enriched oyster mushroom additive:

[0091] ①The common natural cottonseed hulls are screened, dried, crushed to a particle size of 0.005-0.1 mm, and mixed evenly, and the formula of the cultivation material additive required for the cultivation of selenium-enriched oyster mushrooms is designed.

[0092] According to the mass ratio, the additive formula is as follows:

[0093] Cottonseed hulls 100 parts

[0094] Sodium selenite 0.011~0.022 parts;

[0095] ② Grind the above sodium selenite to a powder with a particle size of 0.005-0.1 mm, and fully stir and mix with cottonseed hulls to obtain a mixture with a particle size of less than 0.1 mm and a selenium content in the range of 50-100 mg / kg.

[0096] ③ Process and granulate the above mixture to make it into particles with different particle sizes, and the particle sizes are controlled within the ranges of ...

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Abstract

The invention discloses a method for cultivating oyster mushroom uniformly rich in selenium with sodium selenite as the selenium source. The method is characterized in that the method comprises the steps of mixing selenium-rich cultivating material additive accounting for 1-10 percent of the total weight of dried cultivating material into the dried cultivating material, and cultivating oyster mushroom according to an ordinary cultivation method to obtain oyster mushroom uniformly rich in selenium; the selenium-rich cultivating material additive has a total selenium content of 5-500 mg/kg, the grain sizes of the particles in the selenium-rich cultivating material additive are in the range of 0.005-5.0 mm with multi-grain-size regional distribution, the particles having a grain size of 1.0-5.0 mm account for at least 10 percent of the total weight of the additive, while the particles having a grain size of 0.005-0.1 mm account for at least 40 percent of the total weight of the additive; according to the respective parts by weight portions, the raw materials of components used in the selenium-rich cultivating material additive comprise 100 portions of cotton shells and 0.0011-0.11 portion of sodium selenite. The method has the advantages that the selenium utilization factor in oyster mushroom is high, and the selenium content in different batches of oyster mushroom is stable; besides, the method has no potential danger of selenium pollution, is convenient to operate, and easy to promote.

Description

technical field [0001] The invention relates to a method for strengthening the selenium nutrition of edible fungi, in particular to a method for strengthening the selenium nutrition of oyster mushrooms by using sodium selenite as a selenium source, and belongs to the technical field of biotransformation of selenium resources. Background technique [0002] Selenium is an essential trace element for the human body. Selenium deficiency will significantly reduce the body's immunity. In selenium-deficient areas, endemic diseases such as Keshan disease and Kaschin-Beck disease and cardiovascular and cerebrovascular diseases are prone to occur. Appropriate amount of selenium can significantly improve cancer, cataract, and malnutrition in children, and can avoid arteriosclerosis, hypertension, myocardial infarction, senile neurological insufficiency, memory and mental retardation, etc. the occurrence of disease. Selenium supplementation can eliminate free radicals in the body, redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/04C05G3/00
Inventor 李飞李红丽
Owner SUZHOU SETEK
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