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Method for increasing content of 4-aminobutyric acid in sporocarp of pleurotus geesteranus

An aminobutyric acid and rare mushroom technology, which is applied in the fields of botanical equipment and methods, mushroom cultivation, horticulture, etc., can solve the problem of inability to accumulate GABA, glutamic acid residues, and the GABA content of Xiuzhen mushroom and the method for increasing the content, etc. problems, to achieve the effect of improving product added value, easy operation, and improving product functionality

Active Publication Date: 2019-03-19
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, glutamic acid itself is easily absorbed by mycelium and used for vegetative growth. If glutamic acid or sodium glutamate is directly added to the cultivation material, it will be exhausted in the stage of mycelium cultivation, and GABA cannot be accumulated; Spraying glutamic acid or sodium glutamate can easily lead to residues of glutamic acid on the fruiting bodies of Pleurotus edodes
[0005] At present, there are no relevant reports on the content of GABA in xiuzhen mushrooms and the method of increasing the content.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0022] In Example 1, the formula of Xiuzhen mushroom cultivation material is: 200 kilograms of bran, 782 kilograms of sawdust, 1.0 kilogram of gluten powder, 1.0 kilogram of sawdust powder, 10 kilograms of quicklime, 1.0 kilogram of L-calcium glutamate, 5.0 kilograms of soybean oil, water Mix 650 kg of materials evenly, pack 1.5 kg of wet materials per bag, and sterilize at 121°C for 4 hours to complete the preparation of cultivation materials. The implementation method is as follows:

[0023] Step 1: Preparation of Gluten Premix Block (Material A).

[0024] Mix 1 kg of gluten powder with 1 kg of sawdust powder, 0.02 kg of quicklime powder, and 2 kg of water (mass ratio is 10:10:0.2:20), make a cake with a thickness of about 2 cm, and then put it in a steamer Medium-steamed for 1 hour to form a solid bulk gluten powder premix, which was coarsely pulverized by a pulverizer to obtain a gluten powder premix block with a particle diameter of about 0.5 cm, which was material A.

...

Embodiment 2

[0036] The formula of Xiu Zhen mushroom cultivation material in embodiment 2 is: 200 kilograms of bran, 520 kilograms of sawdust, 20.0 kilograms of gluten powder, 180.0 kilograms of sawdust powder, 10 kilograms of quicklime, 50 kilograms of L-calcium glutamate, 20.0 kilograms of soybean oil, water Mix 650 kg of materials evenly, pack 1.5 kg of wet materials per bag, and sterilize at 121°C for 4 hours to complete the preparation of cultivation materials. The implementation method is as follows:

[0037] Step 1: Preparation of Gluten Premix Block (Material A).

[0038] Mix 20 kg of gluten powder with 180 kg of sawdust powder, 2 kg of quicklime powder, and 200 kg of water (mass ratio is 10:90:1:100), make a cake with a thickness of about 2 cm, and then put it in a steamer Medium-steamed for 1 hour to form a solid bulk gluten powder premix, which was coarsely pulverized by a pulverizer to obtain a gluten powder premix block with a particle diameter of about 0.5 cm, which was mate...

Embodiment 3

[0050] The formula of Xiu Zhen mushroom cultivation material in embodiment 3 is: 200 kg of bran, 695 kg of sawdust, 10.0 kg of gluten powder, 50.0 kg of sawdust powder, 10 kg of quicklime, 25 kg of L-calcium glutamate, 10.0 kg of soybean oil, water Mix 650 kg of materials evenly, pack 1.5 kg of wet materials per bag, and sterilize at 121°C for 4 hours to complete the preparation of cultivation materials. The implementation method is as follows:

[0051] Step 1: Preparation of Gluten Premix Block (Material A).

[0052] Mix 10 kg of gluten powder with 50 kg of sawdust powder, 0.6 kg of quicklime powder, and 50 kg of water (mass ratio is 10:50:0.6:50), make a cake with a thickness of about 2 cm, and then put it in a steamer Medium-steamed for 1 hour to form a solid bulk gluten powder premix, which was coarsely pulverized by a pulverizer to obtain a gluten powder premix block with a particle diameter of about 0.5 cm, which was material A.

[0053] Step 2: Preparation of soybean ...

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Abstract

The invention provides a method for increasing the content of 4-aminobutyric acid in sporocarp of pleurotus geesteranus, and belongs to an edible mushroom cultivation technology. The method comprisesthe step of adding vital gluten, L-calcium glutamate and soybean oil in a pleurotus geesteranus cultivation material. The method is simple and convenient, is easy to operate, can be well integrated with an existing pleurotus geesteranus cultivation system, production of the pleurotus geesteranus rich in GABA is realized, the content of GABA in the sporocarp of the pleurotus geesteranus can reach 100-200 mg / kg dry weight, and the method is of great help to improvement of functionality of pleurotus geesteranus products, increasing of added value of products and benefiting of health of consumers.

Description

technical field [0001] The invention belongs to the technical field of edible fungus cultivation, and in particular relates to a method for increasing the content of 4-aminobutyric acid in the fruiting bodies of pear mushrooms. Background technique [0002] Sauce mushrooms ( Pleurotus geesteranus ) is delicious and can be produced in high temperature season (summer). It is an important fresh mushroom market supply mushroom species in summer. The main materials for the cultivation of pleurotus chinensis include sawdust, bran, cottonseed husks and crop stalks, etc. The materials gluten, calcium glutamate and soybean oil used in the present invention have not been used in the cultivation of pleurotus chinensis. According to the Institute of Sports Soil and Fertilizer of Fujian Academy of Agricultural Sciences, fresh mushrooms contain 3.65-3.88% protein, 1.13-1.18% crude fat, 0.87-1.80% reducing sugar, 23.94-34.87% sugar, 2.64% lignin, and 12.85% cellulose. %, pectin 0.14%, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G18/00A01G18/20
CPCA01G18/00A01G18/20
Inventor 柳永张亚青蔡俊冲楼坚龚金炎蔡俊亮刘士旺
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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