CN112812624A - Full-degradable water-retaining agent for mushroom sticks and preparation method thereof - Google Patents

Abstract

The invention provides a full-degradable fungus stick water-retaining agent which comprises the following components in percentage by mass: 1.2% of xanthan gum; 2. 1% of polyvinyl alcohol; 3. 0.6 percent of modified starch; 4. 0.5% of carboxymethyl cellulose; 5. 0.3 percent of trisodium phosphate and the balance of distilled water. The mushroom stick water-retaining agent is non-toxic and pollution-free, and is sprayed on the surfaces of mushroom sticks and the surface of mycelia to form a water-retaining layer of 0.5 mm to play a role in water retention. The inclusion of plastic fragments is avoided in the growth process of the mushroom head and the mushroom body, so that the quality of the mushroom is better. The water-retaining agent of the mushroom stick is completely degraded by microorganisms and enzymes in nature, has no residue, and cannot cause white pollution of soil. And the cost is low, and the batch operation and production can be realized.

Description

Full-degradable water-retaining agent for mushroom sticks and preparation method thereof

Technical Field

The invention belongs to the field of functional water-retaining agents, and particularly relates to a fully degradable bacteria stick water-retaining agent.

Background

The water-retaining effect of the ultra-thin plastic water-retaining bag sleeved on the fungus rod is very good, and meanwhile, the fungus mushroom tooth heads can also burst the bag to grow normally. The mushroom stick water-retaining agent is sprayed on the surface of a mushroom stick to play a role in water retention, so that the mushroom grows out and grows more smoothly.

However, the ultra-thin plastic water-holding bag also has some disadvantages:

1. the bag needs to be broken by the head of the mushroom tooth, the bag needs to be broken continuously when the mushroom stem grows thick, and the broken plastic pieces between the head and the stem affect the quality of the mushroom.

2. After the mushroom growth period is finished, the mushroom sticks are broken and buried in soil, and the residual parts of the ultrathin plastic bags cause white pollution of the soil.

Disclosure of Invention

Therefore, in order to overcome the defects of the prior art, the invention provides a fully-degradable mushroom stick water-retaining agent to improve the quality of mushrooms and reduce pollution.

In order to realize the aim, the full-degradable fungus stick water-retaining agent is composed of the following components in percentage by mass:

1.2% of xanthan gum; 1% of polyvinyl alcohol; 3. 0.6 percent of modified starch; 4. 0.5% of carboxymethyl cellulose; 5. 0.3 percent of trisodium phosphate and the balance of distilled water.

Further, the preparation method comprises the following steps:

(1) adding xanthan gum and polyvinyl alcohol into distilled water, heating and uniformly stirring;

(2) cooling the solution prepared in the step (1), adding modified starch, preserving heat in a water bath, and stirring;

(3) adding carboxymethyl cellulose and trisodium phosphate into the solution prepared in the step (2), and stirring at a constant speed to emulsify the mixed solution under the action of shearing force to obtain a uniform, stable and viscous liquid water-retaining agent; the components are calculated by mass percent: 1.2% of xanthan gum; 1% of polyvinyl alcohol; 3. 0.6 percent of modified starch; 4. 0.5% of carboxymethyl cellulose; 5. 0.3 percent of trisodium phosphate and the balance of distilled water.

Compared with the prior art, the mushroom stick water-retaining agent is non-toxic and pollution-free, and is sprayed on the surface of a mushroom stick and the surface of a mycelium to form a water-retaining layer of 0.5 mm to play a role in water retention. The inclusion of plastic fragments is avoided in the growth process of the mushroom head and the mushroom body, so that the quality of the mushroom is better. The water-retaining agent of the mushroom stick is completely degraded by microorganisms and enzymes in nature, has no residue, and cannot cause white pollution of soil. And the cost is low, and the batch operation and production can be realized.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent.

The invention discloses a full-degradable fungus stick water-retaining agent which comprises the following components in percentage by mass:

1.2% of xanthan gum; 1% of polyvinyl alcohol; 3. 0.6 percent of modified starch; 4. 0.5% of carboxymethyl cellulose; 5. 0.3 percent of trisodium phosphate and the balance of distilled water.

Further, the preparation method comprises the following steps:

(1) adding xanthan gum and polyvinyl alcohol into distilled water, heating and uniformly stirring;

(2) cooling the solution prepared in the step (1), adding modified starch, preserving heat in a water bath, and stirring;

(3) adding carboxymethyl cellulose and trisodium phosphate into the solution prepared in the step (2), and stirring at a constant speed to emulsify the mixed solution under the action of shearing force to obtain a uniform, stable and viscous liquid water-retaining agent; the components are calculated by mass percent: 1.2% of xanthan gum; 1% of polyvinyl alcohol; 3. 0.6 percent of modified starch; 4. 0.5% of carboxymethyl cellulose; 5. 0.3 percent of trisodium phosphate and the balance of distilled water.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (2)

1. The fully-degradable water-retaining agent for the mushroom sticks is characterized by comprising the following components in percentage by mass:

1.2% of xanthan gum; 1% of polyvinyl alcohol; 3. 0.6 percent of modified starch; 4. 0.5% of carboxymethyl cellulose; 5. 0.3 percent of trisodium phosphate and the balance of distilled water.

2. The preparation method of the fully degradable water retaining agent for mushroom sticks as claimed in claim 1, which is characterized by comprising the following steps:

(1) adding xanthan gum and polyvinyl alcohol into distilled water, heating and uniformly stirring;

(2) cooling the solution prepared in the step (1), adding modified starch, preserving heat in a water bath, and stirring;

(3) adding carboxymethyl cellulose and trisodium phosphate into the solution prepared in the step (2), and stirring at a constant speed to emulsify the mixed solution under the action of shearing force to obtain a uniform, stable and viscous liquid water-retaining agent; the components are calculated by mass percent: 1.2% of xanthan gum; 1% of polyvinyl alcohol; 3. 0.6 percent of modified starch; 4. 0.5% of carboxymethyl cellulose; 5. 0.3 percent of trisodium phosphate and the balance of distilled water.