A kind of straw brick for edible mushroom cultivation and preparation method thereof
A technology of straw bricks and edible fungi, applied in the application, solid/semi-solid fertilizer, agriculture and other directions, can solve the problems of affecting the growth of edible mushrooms, reducing production efficiency, a large amount of white garbage, etc., to prevent the loss of water and fertilizer, improve Utilization rate, the effect of improving the utilization rate of water and fertilizer
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Embodiment 1
[0022] A method for preparing straw bricks for edible fungus cultivation, comprising the following steps:
[0023] S1. Preparation of starch adhesive: add 2 times of water to the starch, and stir the reaction at 35°C. After the reaction, add an inorganic base to adjust to alkalinity, then add polyvinyl alcohol and ethanol solution of octenyl succinic anhydride. Stir the reaction at 40°C. After the reaction, add 6 times the starch mass of NaCl solution, raise the temperature to 65°C, stir the reaction, remove ethanol, add citric acid to adjust to neutral, and obtain the starch adhesive;
[0024] S2. Straw treatment: Crush the crop straw, divide it into two parts, put one part into a steam explosion tank, pass water vapor into the tank, perform a steam explosion treatment, release the pressure and spray, and put the sprayed material into the steam explosion tank. Into the secondary steam explosion tank, feed the mixed gas of water vapor and nitrogen into the tank, carry out the ...
Embodiment 2
[0027] A method for preparing straw bricks for edible fungus cultivation, comprising the following steps:
[0028] S1. Preparation of starch adhesive: Add 2 times of water to the starch, stir and react at 30°C for 30 minutes, after the reaction, adjust the pH value to 8.0 with 10% NaOH solution, add polyvinyl alcohol, octenyl succinic anhydride ethanol Solution, wherein the mass ratio of polyvinyl alcohol, octenyl succinic anhydride and starch is 18:16:100, stirred and reacted at 35°C for 2.5h, after the reaction, add 5% NaCl solution of 5 times the mass of starch, Raise the temperature to 60°C, stir and react for 2 hours, remove ethanol, add citric acid to adjust to neutrality, concentrate until the solid content is 25%, and obtain the starch adhesive;
[0029] S2. Straw treatment: Crush the crop straw, divide it into two parts, put one part into a steam explosion tank, feed water vapor until the pressure in the tank is 0.5 MPa, keep the pressure for 2 minutes, release the pr...
Embodiment 3
[0032] A method for preparing straw bricks for edible fungus cultivation, comprising the following steps:
[0033] S1. Preparation of starch adhesive: add 3 times of water to the starch, stir and react at 35°C for 35 minutes, after the reaction, adjust the pH value to 8.5 with 10% NaOH solution, add polyvinyl alcohol, 15% octenyl succinate Ethanol solution of acid anhydride, wherein the mass ratio of polyvinyl alcohol, octenyl succinic anhydride and starch is 15:15:100, stirred and reacted at 40°C for 2 hours, after the reaction, add 5% NaCl which is 6 times the mass of starch The solution was heated to 65°C, stirred for 2.5 hours, ethanol was removed, citric acid was added to adjust to neutrality, and concentrated to a solid content of 30% to obtain a starch adhesive;
[0034]S2. Straw treatment: Crush the crop straw into 3mm, divide it into two parts, put one part into a steam explosion tank, feed water steam until the pressure in the tank is 0.8MPa, keep the pressure for 3m...
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