CN108638735A - A kind of preparation method of dried flower - Google Patents

Abstract

The invention discloses a preparation method of dried flowers, which comprises the following steps: putting tulip petals in a color-protecting agent, soaking them for 30-40 minutes, taking out and draining to obtain color-protecting petals; spraying a setting agent on the surface of the color-protecting petals, and statically Place for 1-2 hours to obtain the shaped petals; spread 2-3 layers of drying paper on the bamboo sieve, spread the shaped petals on the drying paper, cover the shaped petals with 2-3 layers of drying paper, and dry to obtain dried flowers. The dried flower prepared by the method of the invention has bright color, maintains the natural color and shape of petals, has certain toughness and elasticity, stable texture and long storage time.

Description

A kind of preparation method of dried flower

technical field

The invention relates to the technical field of gardening, in particular to a method for preparing dried flowers.

Background technique

Flowers are more and more popular because of their beautiful appearance, and people like to decorate their living space with flowers more and more. Flowers are plants with strong temporal and seasonal characteristics and certain requirements for growing conditions. When flowers leave the mother body and lose the supply of nutrients, they will wither quickly, lose their vivid color, and are difficult to preserve for a long time. So people thought of making fresh flowers into dried flowers to keep the original color and shape of flowers, which is convenient for viewing and fragrant all the time.

But the discoloration of flowers is serious in the preparation process of existing dried flowers, and some need to be dyed in the later stage, so that the flowers lose their natural color, seriously affect the ornamental effect, and limit the dried flower market; the petals are crisp, the texture is not ideal, and the yield is low.

Contents of the invention

Based on the technical problems existing in the background technology, the present invention proposes a method for preparing dried flowers. The dried flowers prepared by the method of the present invention maintain the natural color and shape of the flowers and prolong the storage time of the flowers.

The invention discloses a preparation method of dried flowers, which comprises the following steps:

S1. Put the tulip petals in the color-protecting agent, soak for 30-40 minutes, take out and drain to obtain the color-protecting petals;

S2. Spray a sizing agent on the surface of the color-preserving petals obtained in S1, and let stand for 1-2 hours to obtain sizing petals;

S3. Spread 2-3 layers of drying paper on the bamboo sieve, spread the shaped petals obtained in S2 on the drying paper, cover the shaped petals with 2-3 layers of drying paper, and dry to obtain dried flowers.

Preferably, in S2, 60-80 grams of sizing agent is sprayed per kilogram of color-protecting petals.

Preferably, in S3, the shaped petals are tiled on the dry paper, and the thickness of the tiled shaped petals is 2-3 cm.

Preferably, the drying temperature in S3 is 45-60°C.

Preferably, the preparation method of the desiccant paper in S3 is as follows: the desiccant is uniformly sprayed on the raw rice paper to obtain the desiccant paper, and the amount of the desiccant sprayed per square centimeter of the raw rice paper is 0.08-0.12 ml.

Preferably, the raw materials of the desiccant include by weight: 10-15 parts of volcanic ash, 6-9 parts of montmorillonite, 1-2 parts of cornstarch, 3-5 parts of purslane, 1-2 parts of salicylic acid, water 70-85 servings.

Preferably, the preparation method of desiccant comprises the following steps:

Step 1: pulverizing the volcanic ash and montmorillonite respectively, and passing through a 80-100 mesh sieve to obtain volcanic ash powder and montmorillonite powder;

Step 2: Add purslane into water, heat to 98-110°C, boil for 30-40 minutes, cool down to 70-80°C, add cornstarch, keep stirring for 10-15 minutes, cool to 30-35°C, Add volcanic ash powder, montmorillonite powder, and salicylic acid, and stir for 10-15 minutes to obtain a desiccant.

Preferably, the raw materials of the color-protecting agent include by weight: 5-8 parts of citric acid, 2-3 parts of sodium chloride, 10-15 parts of pine needle extract, 0.5-1 part of sodium carboxymethyl cellulose, sodium alginate 7-10 parts, 280-300 parts of water.

Preferably, the preparation method of pine needle extract comprises the following steps:

Step 1: Soak the pine needles in an acetic acid solution with a mass fraction of 40%-50% for 2-3 hours, take it out, rinse with water to remove the acetic acid solution on the surface, dry and pulverize to obtain pine needle powder;

Step 2: Mix the pine needle powder obtained in step 1 with water, perform ultrasonic treatment, and filter to obtain pine needle extract.

Preferably, in step 1 of the preparation method of the pine needle extract, the drying temperature is 70-80° C., and the drying is performed until the water content is 12%-15%.

Preferably, in step 1 of the preparation method of the pine needle extract, it is crushed to 60-80 mesh.

Preferably, in step 2 of the preparation method of the pine needle extract, the ultrasonic frequency is 380-400khz, the power is 300-350W, and the treatment time is 15-20 minutes.

Preferably, the preparation method of the color-protecting agent is as follows: adding citric acid, sodium chloride, pine needle extract, sodium carboxymethyl cellulose and sodium alginate into water, and mixing uniformly.

Preferably, the raw materials of the styling agent include by weight: 80-100 parts of glutinous rice milk, 15-20 parts of chitosan, 5-10 parts of sodium alginate, 0.5-1.5 parts of calcium propionate, 1- 3 copies.

Preferably, the preparation method of sizing agent raw material glutinous rice pulp comprises the following steps:

Step 1: Add water to the glutinous rice for the first time, soak for 20-25 hours, filter to obtain liquid A and solid B;

Step 2: Add water to the solid B obtained in Step 1 for the second time, soak for 10-15 hours, and filter to obtain liquid C;

Step 3: Mix the liquid A obtained in step 1 with the liquid C obtained in step 3, and cook at 95-105° C. for 10-15 minutes to obtain glutinous rice slurry.

Preferably, in the preparation method of glutinous rice pulp, the raw material of the setting agent, the weight ratio of glutinous rice, the first water addition, and the second water addition is 1:8-10:5-8.

Preferably, the preparation method of the setting agent is as follows: adding chitosan, sodium alginate, calcium propionate and monoglyceride laurate into the glutinous rice slurry and mixing evenly.

The invention provides a method for preparing dried flowers. The dried flowers prepared by the method are bright in color, maintain the natural color and shape of petals, have certain toughness and elasticity, stable texture and long storage time.

The invention adopts drying paper to assist drying, accelerates the drying speed of flowers, or lowers the drying temperature under the same drying time, and reduces the discoloration phenomenon of flowers caused by high-temperature drying. Drying paper includes desiccant and solid media.

The desiccant provided by the invention takes volcanic ash, montmorillonite, cornstarch, purslane, salicylic acid, and water as main raw materials. Next, it will take away the water in the flowers while losing water itself. Among them, volcanic ash and montmorillonite mainly play the role of water absorption and drying. Purslane and salicylic acid have antiseptic and antibacterial effects, preventing desiccants and flowers from being corrupted by bacteria. The present invention provides the preparation method of this kind of desiccant. It can be seen from the preparation method that cornstarch will gelatinize at 70-80°C, and the gelatinized cornstarch can absorb the added pozzolanic powder and montmorillonite powder, Making the desiccant uniform in texture is also conducive to the adhesion of the desiccant on the solid medium.

The desiccant provided by the present invention is a liquid desiccant, which must be used with a certain solid medium. The technicians found that raw rice paper is the most suitable solid medium for the liquid desiccant. The raw rice paper is light in texture, has good toughness and water absorption, and can be used very well The adsorption liquid desiccant will not deform the flowers due to its own gravity, and it has good toughness and is not easy to be damaged.

In order to ensure that the color and shape of the dried flower is similar to that of the fresh flower, and the appearance is good, the invention has carried out color protection and shaping.

The color-retaining agent provided by the invention has good color-retaining effect, can effectively improve the discoloration phenomenon of flowers, reduce the color difference between dried flowers and fresh flowers, and significantly improve the quality of dried flower products. The invention adds pine needle extract to the color protecting agent, and preferably provides a preparation method of the pine needle extract. The pine needle extract can inhibit the enzymatic activity of oxidase and peroxidase in flowers. These enzymes are the main cause of discoloration of flowers. In the prior art, high temperature methods such as steaming and ironing are used to destroy enzymes, which seriously damage the appearance of flowers. , treated with a color-protecting agent, which has little effect on the pattern. Adding sodium alginate can improve the surface gloss of flowers.

The setting agent provided by the invention has good setting effect and can maintain the shape of dried flowers. The sizing agent provided by the invention takes chitosan, sodium alginate, calcium propionate, monoglyceride laurate, and glutinous rice pulp as main raw materials, and the preparation method of glutinous rice pulp is preferably used. The viscosity of glutinous rice pulp prepared by the method provided by the invention is Higher, the sizing agent prepared from this kind of glutinous rice pulp also has a higher viscosity, which can be attached to the surface of flowers to form a film structure and increase the anti-extrusion ability of flowers. This type of styling agent has good permeability and can enter the interior of plant cells. Chitosan and sodium alginate can fill the vacancy of moisture lost due to drying; calcium propionate and monolaurin have antiseptic and antibacterial effects. It can inhibit the bacterial corruption of fixatives and dried perianth.

Detailed ways

Below, the technical solution of the present invention will be described in detail through specific examples.

Example 1

The invention provides a kind of preparation method of dried flower, comprises the following steps:

S1. Put the tulip petals in the color-protecting agent, soak for 37 minutes, take out and drain to obtain the color-protecting petals;

S2. Spray a sizing agent on the surface of the color-preserving petals obtained in S1, spray 70 grams of sizing agent per kilogram of the color-preserving petals, and let stand for 1.8 hours to obtain the sizing petals;

S3. Spread 2 layers of drying paper on the bamboo sieve, spread the shaped petals obtained in S2 on the drying paper with a thickness of 2.2 cm, cover the shaped petals with 3 layers of drying paper, and dry at 53°C to obtain dried flowers.

The preparation method of the desiccant paper is as follows: the desiccant is evenly sprayed on the raw rice paper to obtain the desiccant paper, and the spraying amount of the desiccant per square centimeter of the raw rice paper is 0.11 milliliters.

The raw materials of the desiccant include by weight: 12 parts of volcanic ash, 8 parts of montmorillonite, 1.3 parts of cornstarch, 4.2 parts of purslane, 1.4 parts of salicylic acid and 79 parts of water.

The preparation method of desiccant comprises the following steps:

Step 1: pulverizing the volcanic ash and montmorillonite respectively, and passing through a 90-mesh sieve to obtain volcanic ash powder and montmorillonite powder;

Step 2: Add purslane into water, heat to 100°C, boil for 37 minutes, cool down to 78°C for the first time, add cornstarch, keep warm and stir for 13 minutes, cool down to 33°C for the second time, add volcanic ash powder, Montmorillonite powder and salicylic acid were stirred for 14 minutes to obtain a desiccant for flowers.

The raw materials of the color-protecting agent include by weight: 6 parts of citric acid, 2.2 parts of sodium chloride, 14 parts of pine needle extract, 0.8 parts of sodium carboxymethylcellulose, 8 parts of sodium alginate and 289 parts of water.

The color-protecting agent raw material pine needle extract is prepared by the following method:

Step 1: Soak the pine needles in an acetic acid solution with a mass fraction of 42% for 2.5 hours, take it out, rinse with clean water to remove the acetic acid solution on the surface, dry at 78°C until the water content is 13%, and crush through an 80-mesh sieve to obtain pine needles pink;

Step 2: Mix the pine needle powder obtained in step 1 with water, the weight ratio of pine needle powder and water is 1:5.6, carry out ultrasonic treatment, the ultrasonic frequency is 400khz, the power is 320W, the treatment time is 16 minutes, steam distillation obtains Pine needle extract.

The raw materials of the setting agent include by weight: 92 parts of glutinous rice pulp, 18 parts of chitosan, 9 parts of sodium alginate, 0.7 part of calcium propionate, and 2.3 parts of monoglyceride laurate.

Styling agent raw material glutinous rice pulp adopts following method to prepare:

Step 1: Add water to the glutinous rice for the first time, soak for 21 hours, and filter to obtain liquid A and solid B;

Step 2: Add water to the solid B obtained in Step 1 for the second time, soak for 13 hours, and filter to obtain liquid C;

Step 3: Mix the liquid A obtained in step 1 and the liquid C obtained in step 2, and boil at 104° C. for 12 minutes to obtain glutinous rice slurry.

The weight ratio of glutinous rice, water added for the first time, and water added for the second time is 1:9.2:7.7.

Example 2

The preparation method of dried flower in embodiment 1 can also adopt following steps:

S1. Put the tulip petals in the color-protecting agent, soak for 33 minutes, take out and drain to obtain the color-protecting petals;

S2. Spray a sizing agent on the surface of the color-preserving petals obtained in S1, spray 64 grams of sizing agent per kilogram of the color-preserving petals, and let stand for 1.3 hours to obtain the sizing petals;

S3, spread 3 layers of drying paper on the bamboo sieve, spread the shaped petals obtained in S2 on the drying paper, with a thickness of 2.8 cm, cover the shaped petals with 2 layers of drying paper, and dry at 47°C to obtain dried flowers.

The preparation method of the desiccant paper is as follows: the desiccant is evenly sprayed on the raw rice paper to obtain the desiccant paper, and the spraying amount of the desiccant per square centimeter of the raw rice paper is 0.09 ml.

Example 3

The preparation method of dried flower in embodiment 1 can also adopt following steps:

S1. Put the tulip petals in the color-protecting agent, soak for 35 minutes, take out and drain to obtain the color-protecting petals;

S2. Spray a sizing agent on the surface of the color-preserving petals obtained in S1, spray 77 grams of sizing agent per kilogram of the color-preserving petals, and let stand for 1.6 hours to obtain the sizing petals;

S3, spread 3 layers of drying paper on the bamboo sieve, spread the shaped petals obtained in S2 on the drying paper with a thickness of 2.5 cm, cover the shaped petals with 3 layers of drying paper, and dry at 58°C to obtain dried flowers.

The preparation method of the desiccant paper is as follows: the desiccant is evenly sprayed on the raw rice paper to obtain the desiccant paper, and the spraying amount of the desiccant per square centimeter of the raw rice paper is 0.10 ml.

Example 4

The preparation method of dried flower in embodiment 1, the raw material of color-protecting agent can also comprise by weight: 5 parts of citric acid, 2.8 parts of sodium chloride, 12 parts of pine needle extract, 0.9 part of sodium carboxymethyl cellulose, alginic acid 9 parts of sodium, 298 parts of water.

Example 5

In the preparation method of dried flowers in Example 1, the raw materials of the color-protecting agent can also include: 8 parts of citric acid, 2.4 parts of sodium chloride, 13 parts of pine needle extract, 0.6 part of sodium carboxymethylcellulose, alginic acid 7 parts of sodium, 293 parts of water.

Example 6

In the preparation method of dried flowers in Example 1, the raw materials of color-protecting agent can also include: 7 parts of citric acid, 2.6 parts of sodium chloride, 11 parts of pine needle extract, 0.7 part of sodium carboxymethylcellulose, alginic acid 10 parts of sodium, 284 parts of water.

Example 7

The preparation method of dried flower in embodiment 1, the raw material pine needle extract of color-protecting agent can also adopt following method to prepare:

Step 1: Soak the pine needles in an acetic acid solution with a mass fraction of 45% for 2.8 hours, take it out, rinse with water to remove the acetic acid solution on the surface, dry at 76°C until the water content is 12%, and crush through a 60-mesh sieve to obtain pine needles pink;

Step 2: Mix the pine needle powder obtained in step 1 with water, the weight ratio of pine needle powder and water is 1:7.8, carry out ultrasonic treatment, the ultrasonic frequency is 380khz, the power is 330W, the treatment time is 18 minutes, steam distillation obtains Pine needle extract.

Example 8

The preparation method of dried flower in embodiment 1, the raw material pine needle extract of color-protecting agent can also adopt following method to prepare:

Step 1: Soak the pine needles in an acetic acid solution with a mass fraction of 47% for 2.3 hours, take it out, rinse with clean water to remove the acetic acid solution on the surface, dry at 74°C until the water content is 14%, and crush through a 70-mesh sieve to obtain pine needles pink;

Step 2: Mix the pine needle powder obtained in step 1 with water, the weight ratio of pine needle powder and water is 1:6.3, carry out ultrasonic treatment, the ultrasonic frequency is 390khz, the power is 340W, the treatment time is 17 minutes, steam distillation obtains Pine needle extract.

Example 9

The preparation method of dried flower in embodiment 1, the raw material of desiccant can also comprise by weight: 13 parts of volcanic ash, 6 parts of montmorillonite, 1.7 parts of cornstarch, 3.4 parts of purslane, 1.8 parts of salicylic acid, 75 parts of water share.

The preparation method of desiccant can also comprise the following steps:

Step 1: pulverize the volcanic ash and montmorillonite respectively, and pass through an 85-mesh sieve to obtain volcanic ash powder and montmorillonite powder;

Step 2: Add purslane into water, heat to 107°C, boil for 33 minutes, cool down to 75°C for the first time, add cornstarch, keep stirring for 14 minutes, cool down to 31°C for the second time, add volcanic ash powder, Montmorillonite powder and salicylic acid were stirred for 13 minutes to obtain a desiccant for flowers.

Example 10

The preparation method of dried flower in embodiment 1, the raw material of desiccant can also comprise by weight: 11 parts of volcanic ash, 7 parts of montmorillonite, 1.6 parts of corn starch, 4.8 parts of purslane, 1.2 parts of salicylic acid, 83 parts of water share.

The preparation method of desiccant can also comprise the following steps:

Step 1: pulverizing the volcanic ash and montmorillonite respectively, and passing through a 95-mesh sieve to obtain volcanic ash powder and montmorillonite powder;

Step 2: Add purslane into water, heat to 104°C, boil for 36 minutes, cool down to 73°C for the first time, add corn starch, keep stirring for 12 minutes, cool down to 34°C for the second time, add volcanic ash powder, Montmorillonite powder and salicylic acid were stirred for 11 minutes to obtain a desiccant for flowers.

Example 11

The preparation method of dried flower in embodiment 1, the raw material of sizing agent can also comprise by weight: 84 parts of glutinous rice milk, 16 parts of chitosan, 8 parts of sodium alginate, 1.4 parts of calcium propionate, 2.8 parts of monoglyceride laurate share.

Example 12

The preparation method of dried flower in embodiment 1, the raw material of sizing agent can also comprise by weight: 97 parts of glutinous rice milk, 17 parts of chitosan, 6 parts of sodium alginate, 1.2 parts of calcium propionate, 1.9 parts of monoglyceride laurate share.

Example 13

The preparation method of dried flower in embodiment 1, the raw material of sizing agent can also comprise by weight: 88 parts of glutinous rice milk, 19 parts of chitosan, 7 parts of sodium alginate, 0.9 part of calcium propionate, 1.4 parts of monoglyceride laurate share.

Example 14

The preparation method of dried flower in embodiment 1, the raw material glutinous rice pulp of sizing agent can also adopt following method to prepare:

Step 1: Add water to the glutinous rice for the first time, soak for 23.5 hours, filter to obtain liquid A and solid B;

Step 2: Add water to the solid B obtained in Step 1 for the second time, soak for 14 hours, and filter to obtain liquid C;

Step 3: Mix the liquid A obtained in step 1 and the liquid C obtained in step 2, and boil at 101° C. for 13 minutes to obtain glutinous rice slurry.

The weight ratio of glutinous rice, water added for the first time, and water added for the second time is 1:8.4:5.6.

Example 15

The preparation method of dried flower in embodiment 1, the raw material glutinous rice pulp of sizing agent can also adopt following method to prepare:

Step 1: Add water to the glutinous rice for the first time, soak for 24 hours, and filter to obtain liquid A and solid B;

Step 2: Add water to the solid B obtained in Step 1 for the second time, soak for 11 hours, and filter to obtain liquid C;

Step 3: Mix the liquid A obtained in step 1 and the liquid C obtained in step 2, and cook at 98° C. for 14 minutes to obtain glutinous rice slurry.

The weight ratio of glutinous rice, water added for the first time, and water added for the second time is 1:9.6:6.8.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (9)

1. a kind of preparation method of dried flower, which is characterized in that include the following steps：

S1, tulip petals are placed in color stabilizer, are impregnated 30-40 minutes, taking-up drains to obtain color protection petal；

The surface sprinkling setting agent of S2, the color protection petal obtained in S1, stand 1-2 hours, obtain sizing petal；

S3, the layer 2-3 that tiles on bamboo sieve dry paper, and the sizing petal obtained in S2 is laid on dry paper, are spent in sizing Layer 2-3 drying paper is covered on valve again, is dried to obtain dried flower.

2. a kind of preparation method of dried flower according to claim 1, which is characterized in that every kilogram of color protection petal in the S2 Spray 60-80 grams of setting agent.

3. a kind of preparation method of dried flower according to claim 1, which is characterized in that the preparation side of dry paper in the S3 Method is：Drier is uniformly sprayed on raw rice paper, obtains dry paper, the drier fountain height of raw rice paper every square centimeter is 0.08- 0.12 milliliter.

4. a kind of preparation method of dried flower according to claim 3, which is characterized in that the drier used in the S4 Raw material includes by weight：10-15 parts of volcanic ash, 6-9 parts of montmorillonite, 1-2 parts of cornstarch, 3-5 parts of purslane, salicylic acid 1- 2 parts, 70-85 parts of water.

5. a kind of preparation method of dried flower according to claim 4, which is characterized in that the preparation method packet of the drier Include following steps：

Step 1：Volcanic ash, montmorillonite are crushed respectively, 80-100 mesh sieve is crossed, obtains volcano ashes, montmorillonite powder；

Step 2：Purslane is added to the water, is heated to 98-110 DEG C, infusion 30-40 minutes is cooled to 70-80 DEG C, is added Cornstarch, insulated and stirred 10-15 minutes are cooled to 30-35 DEG C, and volcano ashes, montmorillonite powder, salicylic acid is added, and stir 10- 15 minutes, obtain drier.

6. a kind of preparation method of dried flower according to claim 1, which is characterized in that the color stabilizer used in the S1 Raw material includes by weight：5-8 parts of citric acid, 2-3 parts of sodium chloride, 10-15 parts of extract from pine needles, sodium carboxymethylcellulose 0.5- 1 part, 7-10 parts of sodium alginate, 280-300 parts of water.

7. a kind of preparation method of dried flower according to claim 1, which is characterized in that the setting agent used in the S2 Raw material includes by weight：80-100 parts of sticky rice syrup, 15-20 parts of chitosan, 5-10 parts of sodium alginate, 0.5-1.5 parts of calcium propionate, 1-3 parts of lauric monoglyceride.

8. a kind of preparation method of dried flower according to claim 1, which is characterized in that will sizing petal tiling in the S3 On dry paper, the thickness of the sizing petal of tiling is 2-3 centimetres.

9. a kind of preparation method of dried flower according to claim 1, which is characterized in that dry temperature is in the S3 45-60℃。