Maca flower superfine powder and preparation method thereof

Abstract

The inventeion discloses maca flower superfine powder and a preparation method thereof. The preparation method comprises the following steps: S1, drying, namely first pre-freezing maca flowers, and performing vacuum freeze drying, so that the moisture content is 3-7%; S2, coarse grinding, namely grinding the dried maca flowers into coarse powder, and standing under the condition of 0-15 DEG C; and S3, superfine grinding, namely introducing air subjected to freeze drying into the coarse powder, and obtaining the maca flower superfine powder by adopting a cell disruption superfine grinding technology, wherein the particle size of the powder is less than 10 microns. According to the invention, the defects that the traditional Chinese medicine health care products are complicated in processing, nutritive materials are lost in the processing process and the like are overcome due to the adoption of a low-temperature disruption superfine grinding method. Pigments, other additives and the like are not added in the operating process, so that the nutrition and flavor substances of the maca flower are remained to the greatest degree, the obtained maca flower superfine powder is pure, natural, safe and sanitary, the retention rate of active ingredients such as macamides, glucosinolate, adenosine, total saponins and the like is high, and the powder is uniform.

Description

technical field

[0001] The invention belongs to the field of ultrafine powder preparation technology, and in particular relates to a maca flower ultrafine powder and a preparation method thereof. Background technique

[0002] Ultrafine pulverization technology is a new material processing technology produced after the 1970s. This technology can pulverize materials into ultrafine powders of 10-25 μm or smaller, and even reach nanoscale. The original chemical properties, high crushing precision, good powder shape and so on. When the material is processed below 10 μm, the ultrafine powder has a huge specific surface, porosity and surface energy, so that the material has good solubility, dispersibility, adsorption, fluidity, chemical activity, etc. performance. With the continuous development of the modern health food industry, ultrafine pulverization technology, as a high-tech processing method, has been applied to the processing of many foods. Foods made from ultra-finely p...

Examples

Embodiment 1

[0026] A kind of maca flower superfine powder, adopts following method to prepare:

[0027] S1. Drying: Pre-freeze maca flowers in -20°C refrigerator for 12 hours, then transfer to a vacuum freeze dryer for drying, set the shelf temperature program: the first stage of drying at 25°C for 10 hours; the second stage of drying at 30°C 20 h; the third stage was dried at 35°C for 5 h; the fourth stage was dried at 25°C for 3 h; the water content of dried maca flowers was 6.72 %;

[0028] S2. Coarse pulverization: Put the dried maca flowers into a universal pulverizer, pulverize them at 20,000 r / min for 10 s, and grind them into coarse powder, and place them at a low temperature of 0°C;

[0029] S3. Superfine pulverization: the above-mentioned coarse powder and the air with a temperature of 0° C. after freeze-drying are injected into the superfine pulverizer together, and the maca flower cells are broken by low-temperature wall-breaking technology to obtain the superfine powder of ma...

Embodiment 2

[0032] A kind of maca flower superfine powder, adopts following method to prepare:

[0033] S1. Drying: Pre-freeze maca flowers in -20°C refrigerator for 18 hours, then transfer to a vacuum freeze dryer for drying, set the shelf temperature program: the first stage of drying at 25°C for 13 hours; the second stage of drying at 30°C 22 h; the third stage was dried at 35°C for 8 h; the fourth stage was dried at 25°C for 4 h; the water content of dried maca flowers was 4.84 %;

[0034] S2. Coarse pulverization: Put the dried maca flowers into a universal pulverizer, pulverize them at 23000 r / min for 20 s and grind them into coarse powder, and place them at a low temperature of 10°C;

[0035] S3. Superfine pulverization: the above-mentioned coarse powder and air at a temperature of 10° C. after freeze-drying are injected into a superfine pulverizer together, and a low-temperature wall-breaking technology is used to break the wall of Maca flower cells to obtain Maca flower superfine...

Embodiment 3

[0038] A kind of maca flower superfine powder, adopts following method to prepare:

[0039] S1. Drying: Pre-freeze maca flowers in -20°C refrigerator for 24 hours, then transfer to a vacuum freeze dryer for drying, set the shelf temperature program: the first stage of drying at 25°C for 15 hours; the second stage of drying at 30°C 25 h; the third stage was dried at 35°C for 10 h; the fourth stage was dried at 25°C for 5 h; the water content of dried maca flowers was 3.39 %;

[0040] S2. Coarse pulverization: Put the dried maca flowers into a universal pulverizer, pulverize them at 25,000 r / min for 30 s, and grind them into coarse powder, and place them at a low temperature of 15°C;

[0041] S3. Superfine pulverization: the above-mentioned coarse powder and air at a temperature of 20° C. after freeze-drying are injected into a superfine pulverizer together, and a low-temperature wall-breaking technology is used to break the wall of maca flower cells to obtain superfine maca flo...

technical field

[0001] The invention belongs to the field of ultrafine powder preparation technology, and in particular relates to a maca flower ultrafine powder and a preparation method thereof. Background technique

[0002] Ultrafine pulverization technology is a new material processing technology produced after the 1970s. This technology can pulverize materials into ultrafine powders of 10-25 μm or smaller, and even reach nanoscale. The original chemical properties, high crushing precision, good powder shape and so on. When the material is processed below 10 μm, the ultrafine powder has a huge specific surface, porosity and surface energy, so that the material has good solubility, dispersibility, adsorption, fluidity, chemical activity, etc. performance. With the continuous development of the modern health food industry, ultrafine pulverization technology, as a high-tech processing method, has been applied to the processing of many foods. Foods made from ultra-finely p...

Examples

Embodiment 1

[0026] A kind of maca flower superfine powder, adopts following method to prepare:

[0027] S1. Drying: Pre-freeze maca flowers in -20°C refrigerator for 12 hours, then transfer to a vacuum freeze dryer for drying, set the shelf temperature program: the first stage of drying at 25°C for 10 hours; the second stage of drying at 30°C 20 h; the third stage was dried at 35°C for 5 h; the fourth stage was dried at 25°C for 3 h; the water content of dried maca flowers was 6.72 %;

[0028] S2. Coarse pulverization: Put the dried maca flowers into a universal pulverizer, pulverize them at 20,000 r / min for 10 s, and grind them into coarse powder, and place them at a low temperature of 0°C;

[0029] S3. Superfine pulverization: the above-mentioned coarse powder and the air with a temperature of 0° C. after freeze-drying are injected into the superfine pulverizer together, and the maca flower cells are broken by low-temperature wall-breaking technology to obtain the superfine powder of ma...

Embodiment 2

[0032] A kind of maca flower superfine powder, adopts following method to prepare:

[0033] S1. Drying: Pre-freeze maca flowers in -20°C refrigerator for 18 hours, then transfer to a vacuum freeze dryer for drying, set the shelf temperature program: the first stage of drying at 25°C for 13 hours; the second stage of drying at 30°C 22 h; the third stage was dried at 35°C for 8 h; the fourth stage was dried at 25°C for 4 h; the water content of dried maca flowers was 4.84 %;

[0034] S2. Coarse pulverization: Put the dried maca flowers into a universal pulverizer, pulverize them at 23000 r / min for 20 s and grind them into coarse powder, and place them at a low temperature of 10°C;

[0035] S3. Superfine pulverization: the above-mentioned coarse powder and air at a temperature of 10° C. after freeze-drying are injected into a superfine pulverizer together, and a low-temperature wall-breaking technology is used to break the wall of Maca flower cells to obtain Maca flower superfine...

Embodiment 3

[0038] A kind of maca flower superfine powder, adopts following method to prepare:

[0039] S1. Drying: Pre-freeze maca flowers in -20°C refrigerator for 24 hours, then transfer to a vacuum freeze dryer for drying, set the shelf temperature program: the first stage of drying at 25°C for 15 hours; the second stage of drying at 30°C 25 h; the third stage was dried at 35°C for 10 h; the fourth stage was dried at 25°C for 5 h; the water content of dried maca flowers was 3.39 %;

[0040] S2. Coarse pulverization: Put the dried maca flowers into a universal pulverizer, pulverize them at 25,000 r / min for 30 s, and grind them into coarse powder, and place them at a low temperature of 15°C;

[0041] S3. Superfine pulverization: the above-mentioned coarse powder and air at a temperature of 20° C. after freeze-drying are injected into a superfine pulverizer together, and a low-temperature wall-breaking technology is used to break the wall of maca flower cells to obtain superfine maca flo...

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