Preparation method of amomum tsao-ko bud dry powder

Abstract

The invention provides a preparation method of dry amomum tsao-ko bud powder. The preparation method comprises the following steps: S1, soaking fresh amomum tsao-ko buds in an anti-freezing agent for 8-12 minutes, and cleaning the fresh amomum tsao-ko buds; s2, freezing the fresh amomum tsao-ko buds treated in the step S1 at low temperature for 23-25 hours; s3, performing vacuum freeze drying for 23-25 hours under the conditions that the vacuum degree is 4-6 Pa and the temperature is-30 to-50 DEG C, and S4, crushing the amomum tsao-ko buds treated in the S3 by using a freeze crusher, controlling the crushing time to be 4-6 seconds each time during crushing, and repeating for 3 times; s5, sieving the crushed amomum tsao-ko bud powder; and S6, sealing and storing the dry amomum tsao-ko bud powder with The preparation method of the amomum tsao-ko bud dry powder provided by the invention is higher in efficiency, better in quality, safer, more efficient and more environment-friendly.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of tsaoko sprout dry powder, and in particular to a method for preparing tsaoko sprout dry powder. Background Art

[0002] At present, the drying methods for cardamom sprouts are mostly drying in the sun and baking. Drying in the sun is greatly affected by the weather and has a slow drying speed, which can easily lead to uneven drying on the surface and inside of the cardamom sprouts. At the same time, drying in the sun can easily lead to the attachment of dust and bacteria on the surface of the cardamom sprouts, affecting the sanitary quality of the product. Although baking can dry the cardamom faster, the drying temperature is high, which can easily lead to the destruction of heat-sensitive components in the cardamom sprouts, affecting the efficacy and taste of the cardamom sprouts. In addition, the equipment and technology requirements for baking are high and difficult to master, and baking will produce a large amount of atmospheric pollutants, which is not conducive to environmental protection. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide a method for preparing tsaoko sprout dry powder, which is more efficient, better in quality, safer, more efficient and environmentally friendly.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is: a method for preparing tsaoko bud dry powder, comprising the following steps:

[0005] S1: Soak fresh grass fruit sprouts in antifreeze for 8 to 12 minutes and wash them

[0006] S2: freezing the fresh tsaoko buds treated in S1 for 23 to 25 hours;

[0007] S3: vacuum freeze drying for 23 to 25 hours at a vacuum degree of 4 to 6 Pa and a temperature of -30 to -50°C.

[0008] S4: using a frozen pulverizer to pulverize the tsaoko buds treated in S3, controlling the pulverization time to be 4 to 6 seconds each time, and repeating 3 times;

[0009] S5: sieving the crushed tsaoko bud powder;

[0010] S6: The dry powder of Amomum villosum sprouts should be stored in sealed packaging bags.

[0011] As an improvement, the low-temperature freezing temperature in S2 is -30 to -50°C.

[0012] As an improvement, the S5 needs to pass through a 40-mesh sieve.

[0013] As an improvement, the packaging bag in the S6 is made of aluminum foil.

[0014] The beneficial effects of the present invention are as follows: the present invention pre-treats fresh tsaoko sprouts, freeze-dries them under vacuum conditions after ultra-low temperature freezing, and then freeze-crushes, sieves, and seals and stores them, so that the volatile components in the tsaoko sprouts can be better retained. The method has the characteristics of low drying temperature, fast drying speed, high effective component retention rate, etc., avoids the problems of long processing time and serious loss of volatile components in traditional processing methods. The method is a method with high efficiency and good quality. In addition, the method also has the advantages of safety, high efficiency, environmental protection, etc. DETAILED DESCRIPTION

[0015] The present invention is described below with specific embodiments, but is not intended to be limiting of the present invention.

[0016] Embodiment 1

[0017] A method for preparing tsaoko bud dry powder comprises the following steps:

[0018] S1: Soak fresh grass fruit sprouts in antifreeze for 8 minutes and then wash them. Antifreeze can reduce the damage to grass fruit sprout cells and the formation of crystals in cells, and has a certain protective effect on the cell structure of grass fruit sprouts.

[0019] S2: The fresh tsaoko buds treated in S1 were cryopreserved for 23 h at a temperature of -30°C;

[0020] S3: vacuum freeze drying for 23h at a vacuum degree of 4Pa and a temperature of -30°C.

[0021] S4: using a freezing pulverizer to pulverize the tsaoko buds treated in S3, controlling the pulverization time to be 4 seconds each time, and repeating 3 times;

[0022] S5: passing the crushed tsaoko bud powder through a 40-mesh sieve;

[0023] S6: The dry powder of Amomum villosum sprouts should be stored in sealed aluminum foil packaging bags.

[0024] Embodiment 2

[0025] A method for preparing tsaoko bud dry powder comprises the following steps:

[0026] S1: Soak fresh grass fruit sprouts in antifreeze for 10 minutes and wash them

[0027] S2: The fresh tsaoko buds treated in S1 were frozen at -40°C for 24 hours. Under this condition, the cell structure of the tsaoko buds was minimally damaged.

[0028] S3: vacuum freeze drying for 24 hours at a vacuum degree of 5Pa and a temperature of -40°C. Under this condition, the drying effect of the tsaoko buds can be optimal.

[0029] S4: using a frozen pulverizer to pulverize the tsaoko buds treated in S3, controlling the pulverization time to be 5 seconds each time, and repeating 3 times;

[0030] S5: passing the crushed tsaoko bud powder through a 40-mesh sieve;

[0031] S6: The dry powder of Amomum villosum sprouts is stored in sealed aluminum foil packaging bags, which have good waterproof, anti-oxidation and heat insulation properties.

[0032] Embodiment 3

[0033] A method for preparing tsaoko bud dry powder comprises the following steps:

[0034] S1: Soak fresh grass fruit sprouts in antifreeze for 12 minutes and wash them

[0035] S2: freezing the fresh tsaoko buds treated in S1 for 23 to 25 hours at a temperature of -30 to -50°C;

[0036] S3: vacuum freeze drying for 25h at a vacuum degree of 6Pa and a temperature of -50°C.

[0037] S4: using a freezing pulverizer to pulverize the tsaoko buds treated in S3, controlling the pulverization time to be 6 seconds each time, and repeating 3 times;

[0038] S5: passing the crushed tsaoko bud powder through a 40-mesh sieve;

[0039] S6: The dry powder of Amomum villosum sprouts should be stored in sealed aluminum foil packaging bags.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for preparing tsaoko bud dry powder, characterized in that: The following steps are involved: S1: Soak fresh grass fruit sprouts in antifreeze for 8 to 12 minutes and wash them S2: freezing the fresh tsaoko buds treated in S1 for 23 to 25 hours; S3: vacuum freeze drying for 23 to 25 hours at a vacuum degree of 4 to 6 Pa and a temperature of -30 to -50°C. S4: using a frozen pulverizer to pulverize the tsaoko buds treated in S3, controlling the pulverization time to be 4 to 6 seconds each time, and repeating 3 times; S5: sieving the crushed tsaoko bud powder; S6: The dry powder of Amomum villosum sprouts should be stored in sealed packaging bags.

2. The method for preparing the tsaoko bud dry powder according to claim 1, characterized in that: The low temperature freezing temperature in S2 is -30 to -50°C.

3. The method for preparing the tsaoko bud dry powder according to claim 1, characterized in that: The S5 needs to pass through a 40-mesh sieve.

4. The method for preparing the tsaoko bud dry powder according to claim 1, characterized in that: The packaging bag in S6 is made of aluminum foil.