Method for culturing pleurotus geesteranus uniformly rich in selenium by utilizing sodium selenate

Abstract

The invention discloses a method for culturing pleurotus geesteranus uniformly rich in selenium by utilizing sodium selenate. The method comprises the following steps: mixing the selenium-enriched cultivation material additive with the dry cultivation material, wherein the weight of the selenium-enriched cultivation material additive is 1-10% of the dry cultivation material, and then culturing according to a common culture method, thereby acquiring the pleurotus geesteranus uniformly rich in selenium, wherein the total selenium content in the selenium-enriched cultivation material additive is5-500mg / kg; the sizes of the grains in the selenium-enriched cultivation material additive are 0.005-5.0mm and the additive is in various grain sizes area distribution; the grains, the sizes of whichare 1.0-5.0mm are at least 10% of the weight of the additive; the grains, the sizes of which are 0.005-0.1mm are at least 40% of the weight of the additive; and the selenium-enriched cultivation material additive comprises the following raw materials in parts by weight: 100 weight parts of corncob powder and 0.0012-0.12 weight parts of sodium selenate. The selenium is high in use ratio, the selenium contents in the pleurotus geesteranus in different batches are stable, the method is free from hidden danger of selenium pollution, the operation is convenient, and the method is easily popularized.

Description

technical field

[0001] The invention provides a method for strengthening selenium nutrition of edible mushrooms by using sodium selenate as a selenium source, in particular relates to a method for strengthening selenium nutrition of pear mushrooms, which belongs to the technical field of biotransformation of selenium resources. Background technique

[0002] Pleurotus geesteranus belongs to the Phylum Fungi, Basidiomycetes, Agaricaceae, Pleurotaceae Pleurotus in taxonomy. Xiuzhen mushroom is crisp and tender in texture, sweet and refreshing, delicious in taste, rich in nutrition, has high edible and medicinal value, and is an excellent strain in Pleurotus chinensis. It is a high-protein, low-fat nutritious food. Its protein content is close to that of meat, 3-6 times higher than that of ordinary vegetables, and its texture is tender and low in fiber content. Threonine, lysine, and homopic acid cannot be produced, and are usually lacking in food. This kind of edible fungus i...

Examples

Embodiment 1

[0062] Example 1 Selenium-enriched Cultivation Example of Pleurotus chinensis

[0063] Preparation of selenium-enriched mushroom additive:

[0064] ①Screen, dry, and crush corncobs, a kind of crop waste, to a particle size of 0.005-0.1 mm, and design the formula of the cultivation material additive required for the cultivation of selenium-enriched pear mushrooms.

[0065] The additive formula is as follows:

[0066] 100 parts of corncob powder;

[0067] Sodium selenate 0.0012~0.0024 parts.

[0068] ② Grind the above-mentioned sodium selenate to a powder with a particle size of 0.005-0.1 mm, and fully stir and mix it with corncob powder to obtain a primary mixture with a particle size below 0.1 mm and a selenium content in the range of 5-10 mg / kg.

[0069] 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, 0.1-1.0mm, and 1.0-5.0mm respectively.

[0070] ④ ...

Embodiment 2

[0076] Example 2 Selenium-enriched Cultivation Example of Pleurotus chinensis

[0077] (1) Preparation of selenium-enriched mushroom additive:

[0078] ①Screen, dry, and crush corncobs, a kind of crop waste, to a particle size of 0.005-0.1 mm, and design the formula of the cultivation material additive required for the cultivation of selenium-enriched pear mushrooms.

[0079] The additive formula is as follows:

[0080] 100 parts of corncob powder;

[0081] Sodium selenate 0.0024~0.012 parts.

[0082] ② Grind the above-mentioned sodium selenate to a powder with a particle size of 0.005-0.1mm, fully stir and mix with corncob powder, and obtain a primary mixture with a particle size below 0.1mm and a selenium content in the range of 10-50mg / kg.

[0083] 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, 0.1-1.0mm, and 1.0-5.0mm respectively.

[0084] ④ Mix ...

Embodiment 3

[0090] Example 3 Selenium-enriched Cultivation Example of Pleurotus chinensis

[0091] (1) Preparation of selenium-enriched mushroom additive:

[0092] ①Screen, dry, and crush corncobs, a kind of crop waste, to a particle size of 0.005-0.1mm, and design the formula of cultivation material additives required for the cultivation of selenium-enriched pear mushrooms.

[0093] The additive formula is as follows:

[0094] 100 parts of corncob powder;

[0095]Sodium selenate 0.012~0.06 parts.

[0096] ② Grind the above-mentioned sodium selenate to a powder with a particle size of 0.005-0.1 mm, and fully stir and mix it with corn cob powder to obtain a primary mixture with a particle size below 0.1 mm and a selenium content in the range of 50-100 mg / kg.

[0097] 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, 0.1-1.0mm, and 1.0-5.0mm respectively.

[0098] ④ M...

technical field

[0001] The invention provides a method for strengthening selenium nutrition of edible mushrooms by using sodium selenate as a selenium source, in particular relates to a method for strengthening selenium nutrition of pear mushrooms, which belongs to the technical field of biotransformation of selenium resources. Background technique

[0002] Pleurotus geesteranus belongs to the Phylum Fungi, Basidiomycetes, Agaricaceae, Pleurotaceae Pleurotus in taxonomy. Xiuzhen mushroom is crisp and tender in texture, sweet and refreshing, delicious in taste, rich in nutrition, has high edible and medicinal value, and is an excellent strain in Pleurotus chinensis. It is a high-protein, low-fat nutritious food. Its protein content is close to that of meat, 3-6 times higher than that of ordinary vegetables, and its texture is tender and low in fiber content. Threonine, lysine, and homopic acid cannot be produced, and are usually lacking in food. This kind of edible fungus i...

Examples

Embodiment 1

[0062] Example 1 Selenium-enriched Cultivation Example of Pleurotus chinensis

[0063] Preparation of selenium-enriched mushroom additive:

[0064] ①Screen, dry, and crush corncobs, a kind of crop waste, to a particle size of 0.005-0.1 mm, and design the formula of the cultivation material additive required for the cultivation of selenium-enriched pear mushrooms.

[0065] The additive formula is as follows:

[0066] 100 parts of corncob powder;

[0067] Sodium selenate 0.0012~0.0024 parts.

[0068] ② Grind the above-mentioned sodium selenate to a powder with a particle size of 0.005-0.1 mm, and fully stir and mix it with corncob powder to obtain a primary mixture with a particle size below 0.1 mm and a selenium content in the range of 5-10 mg / kg.

[0069] 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, 0.1-1.0mm, and 1.0-5.0mm respectively.

[0070] ④ ...

Embodiment 2

[0076] Example 2 Selenium-enriched Cultivation Example of Pleurotus chinensis

[0077] (1) Preparation of selenium-enriched mushroom additive:

[0078] ①Screen, dry, and crush corncobs, a kind of crop waste, to a particle size of 0.005-0.1 mm, and design the formula of the cultivation material additive required for the cultivation of selenium-enriched pear mushrooms.

[0079] The additive formula is as follows:

[0080] 100 parts of corncob powder;

[0081] Sodium selenate 0.0024~0.012 parts.

[0082] ② Grind the above-mentioned sodium selenate to a powder with a particle size of 0.005-0.1mm, fully stir and mix with corncob powder, and obtain a primary mixture with a particle size below 0.1mm and a selenium content in the range of 10-50mg / kg.

[0083] 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, 0.1-1.0mm, and 1.0-5.0mm respectively.

[0084] ④ Mix ...

Embodiment 3

[0090] Example 3 Selenium-enriched Cultivation Example of Pleurotus chinensis

[0091] (1) Preparation of selenium-enriched mushroom additive:

[0092] ①Screen, dry, and crush corncobs, a kind of crop waste, to a particle size of 0.005-0.1mm, and design the formula of cultivation material additives required for the cultivation of selenium-enriched pear mushrooms.

[0093] The additive formula is as follows:

[0094] 100 parts of corncob powder;

[0095]Sodium selenate 0.012~0.06 parts.

[0096] ② Grind the above-mentioned sodium selenate to a powder with a particle size of 0.005-0.1 mm, and fully stir and mix it with corn cob powder to obtain a primary mixture with a particle size below 0.1 mm and a selenium content in the range of 50-100 mg / kg.

[0097] 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, 0.1-1.0mm, and 1.0-5.0mm respectively.

[0098] ④ M...