Preparation method for freeze-dried Chinese yam superfine micro-powder

A technology of ultra-fine powder and ultra-fine pulverization, which is applied in the direction of food preparation, food shaping, and the function of food ingredients, etc. It can solve the problems of loss of nutritional components of raw materials, large loss of heat-sensitive components, and low medicinal value, etc., to achieve long-term convenience Preservation, no toxic side effects, high production efficiency

Inactive Publication Date: 2014-06-18
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a preparation method of freeze-dried Chinese yam superfine powder, which does not need color-protecting solution soaking and enzyme inactivation, a

Method used

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Example Embodiment

[0018] The technical solutions of the present invention will be further clearly and completely described below through embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0019] A preparation method of freeze-dried Chinese yam superfine powder includes the following specific steps:

[0020] Step 1: Choose the ingredients, choose fresh yam without buds and no rot;

[0021] Step 2: Wash, use high-pressure water to clean the yam;

[0022] Step 3: Pre-freeze, put the washed Chinese yam into the quick-freezer, and pre-freeze at -27℃~-30℃ for 3h;

[0023] Step 4: Peel and cut, peel the pre-frozen yam, and cut it into 3-5mm thick slices with a cutting machine;

[0024] Step 5: Sublimation and drying. Put...

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Abstract

The invention provides a preparation method for freeze-dried Chinese yam superfine micro-powder. The preparation method comprises the following steps: selecting materials and washing; peeling off and slicing; lyophilizing; crushing to obtain superfine micro-powder and sealing and packaging; after selecting the materials and washing, pre-cooling Chinese yams; then peeling off and slicing, wherein the pre-cooling temperature of the pre-cooling step ranges from-27 DEG C to -30 DEG C and the pre-cooling time of the pre-cooling step lasts for 3h; the slicing thickness in the step of peeling off and slicing is 3-5mm; the temperature in the lyophilizing step ranges from -35 DEG C to -45 DEG C; the water content of the lyophilized materials is less than or equal to 3%; the step of crushing to obtain the superfine micro-powder adopts a vibration type superfine micro-powder crusher to crush the materials; the temperature of the materials is controlled to -10 DEG C in the crushing process. According to the preparation method for the freeze-dried Chinese yam superfine micro-powder provided by the invention, immersion by adopting color-protecting solution and enzyme deactivation are not needed and the loss of heat-sensitive components of the prepared Chinese yam micro-powder is small; the loss of nutrition ingredients of the raw materials is little, the reconstitution property is good and the medical value is high.

Description

technical field [0001] The invention relates to a production method of freeze-dried food ultrafine powder, in particular to a production method of freeze-dried Chinese yam as a raw material of ultrafine powder. Background technique [0002] Huai yam is a perennial winding herbaceous vine, which is the tuber of the yam plant Dioscorea in the Dioscoreaceae family. It is a precious medicinal material with the same origin as medicine and food. There is a monograph in "Compendium of Materia Medica" written by Li Shizhen, a medical scientist in Ming Dynasty: nature, sweet, warm and flat. If you take it for a long time, you can hear and see well, and you can live lightly without hunger and prolong life. "Shen Nong's Materia Medica" states that it is "flat in nature, sweet in taste, nourishing the spleen and stomach, benefiting the lungs and kidneys, promoting body fluid and quenching thirst, benefiting kidney qi, stopping diarrhea and dysentery, reducing phlegm and saliva, and moi...

Claims

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Application Information

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IPC IPC(8): A23L1/214A23P1/06A23L19/10A23P10/40
CPCA23L19/09A23L19/10A23V2002/00A23V2200/30
Inventor 任广跃任丽影刘丽莉段续刘云宏张伟张玉先
Owner HENAN UNIV OF SCI & TECH
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