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A method for preparing mulberry superfine powder by using differential pressure blasting pretreatment technology

An ultrafine powder and pretreatment technology, which is applied in the field of food processing, can solve the problems of destroying the nutritional content of products, immature subsequent permeate treatment technology, and expensive production equipment, so as to improve production efficiency and quality, avoid thermal degradation, and save energy. Effect of drying time

Active Publication Date: 2017-07-28
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common drying pretreatment methods include infiltration, vacuum infiltration, deep freezing, microwave, ultrasonic and cooking, etc., but in these pretreatment methods, the infiltration treatment efficiency is low, and the subsequent permeate treatment technology suitable for production is not mature; vacuum The production equipment required for osmosis, deep freezing, microwave and ultrasonic treatment is expensive; while cooking treatment seriously destroys the nutritional content of the product and reduces the nutritional value of the product; it is not suitable for industrial production

Method used

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  • A method for preparing mulberry superfine powder by using differential pressure blasting pretreatment technology
  • A method for preparing mulberry superfine powder by using differential pressure blasting pretreatment technology
  • A method for preparing mulberry superfine powder by using differential pressure blasting pretreatment technology

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Effect test

Embodiment 1

[0045] In this embodiment, the ultrafine powder of mulberry is prepared by pressure differential blasting pretreatment combined with convective infrared combined drying technology, including the following steps:

[0046] (1) selection: select 500g of mulberries that are complete, without mechanical damage, and without spoilage;

[0047] (2) Cleaning: wash twice with tap water and drain;

[0048] (3) Differential pressure blasting: put the mulberries into a blasting tank with a temperature of 100°C, keep warm for 10 minutes, open the vacuum valve to vacuumize the blasting tank to instantly drop the vacuum degree to -0.1MPa, and let the mulberry fruit be vacuumed Place it in the final container for 3 minutes, then close the vacuum valve and release the vacuum in the explosion tank; the pressure differential explosion is carried out once;

[0049] (4) Drying: Put the mulberries obtained in step (3) into the convection infrared combined drying equipment. In the early stage of dry...

Embodiment 2

[0060] The present invention utilizes pressure difference blasting pretreatment combined with convection infrared combined drying technology to prepare mulberry superfine powder, comprising the following steps:

[0061] (1) selection: select 500g of mulberries that are complete, without mechanical damage, and without spoilage;

[0062] (2) Cleaning: Wash twice with tap water and drain.

[0063] (3) Differential pressure blasting: put the mulberries into a blast tank with a temperature of 110°C, keep warm for 15 minutes, open the vacuum valve to vacuumize to form a vacuum of -0.1MPa, and let the mulberries be placed in the vacuumized container for 4 minutes , then close the vacuum valve and let off the vacuum in the explosion tank; the pressure differential explosion is carried out 3 times;

[0064] (4) Drying: Put the mulberries obtained in step (3) into the convection-infrared combined drying equipment. In the early stage of drying, convective drying and infrared radiation a...

Embodiment 3

[0075] The present invention utilizes pressure difference blasting pretreatment combined with convection infrared combined drying technology to prepare mulberry superfine powder, comprising the following steps:

[0076] (1) selection: select 500g of mulberries that are complete, without mechanical damage, and without spoilage;

[0077] (2) Cleaning: wash twice with tap water and drain;

[0078] (3) Differential pressure blasting: Put the mulberries into a blast tank with a temperature of 95°C, keep warm for 20 minutes, open the vacuum valve to vacuumize to form a vacuum of -0.1MPa, and let the mulberries be placed in the vacuumized container for 5 minutes , then close the vacuum valve and let off the vacuum in the explosion tank; the pressure differential explosion is carried out 5 times;

[0079] (4) Drying: Put the mulberries obtained in step (3) into the convection infrared combined drying equipment. In the early stage of drying, convective drying and infrared radiation ar...

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Abstract

The invention provides a method for preparing mulberry ultra-fine powder employing a differential blasting pretreatment technology. The method comprises the following steps: 1) carrying out differential blasting pretreatment on a mulberry raw material to destroy an organizational structure of the material, so as to obtain pretreated mulberry; 2) carrying out convective infrared combined drying on the pretreated mulberry, so as to obtain a dry mulberry product; and 3) carrying out low-temperature ultra-fine crushing on the dry mulberry product, so as to obtain the mulberry ultra-fine powder. According to the method disclosed by the invention, the organizational structure of the material is destroyed by differential blasting; then excellent dry mulberry is produced by using the convective infrared combined drying method; and the mulberry ultra-fine powder is obtained through the low-temperature ultra-fine crushing method, so that the drying time is shortened by 40%-60%; pigments, other additives and the like are not added in the operation process; nutrients and flavor substances of the mulberry are reserved to the maximal extent; the obtained mulberry ultra-fine powder is pure, natural, safe and healthy; the retention rate of anthocyanin, polysaccharide and total phenols are relatively high; and powder is uniform and has a thick mulberry fragrance.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to a method for preparing superfine mulberry powder by utilizing a differential pressure blasting pretreatment technology. Background technique [0002] Mulberry is the spike-shaped fruit of the deciduous tree mulberry in the family Moraceae. Mature mulberry not only contains nutrients such as reducing sugar, various free acids, protein and cellulose, but also contains functional components such as resveratrol and anthocyanins, which have anti-inflammatory and weight-loss properties. , anti-tumor effects. At present, it has been listed as one of the agricultural products of "Medicine and Food Homology" by the Ministry of Health. Due to the concentration of mulberry harvesting seasons in my country, the underdeveloped fresh-keeping logistics and the low processing capacity of production areas, the utilization rate of mulberry raw materials in my country is low. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L19/00A23L33/00A23P10/40
CPCA23L19/09A23L33/00A23P10/40
Inventor 毕金峰陈芹芹李兆路易建勇周林燕吴昕烨司旭
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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