Fructus momordicae freeze-dried micropowder and preparation method thereof

A technique of Luo Han Guo and micropowder, applied in the preparation of Luo Han Guo freeze-dried micro powder, and the field of Luo Han Guo freeze-dried micro powder, can solve the problems of drying and shrinkage of the surface of Luo Han Guo, loss of nutrients, poor shape, etc. Effect

Inactive Publication Date: 2016-12-07
陈素云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of hot air drying is low energy consumption, but the disadvantage is serious loss of nutrients, shrinkage of the surface of Luo Han Guo, poor shape, discoloration, etc.
Microwave vacuum drying, the color of the dried product is better than hot air drying, but the loss of nutrients is more serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of grosvenoria freeze-dried micropowder, comprising the following steps:

[0025] (1) Select ripe, disease-free, and non-rotten fresh Luo Han Guo, and wash them with clean water;

[0026] (2) Slice the Luo Han Guo cleaned in step (1), and control the slice thickness at 1.5cm;

[0027] (3) Place the sliced ​​Luo Han Guo in step (2) in water at 100°C for 6 minutes;

[0028] (4) Place the dried Luo Han Guo in step (3) at 15°C for 2.5 hours;

[0029] (5) Place the Luo Han Guo after natural air-drying in step (4) in a freeze dryer, cool down, and pre-freeze for 7 hours when the temperature drops to -15°C; the time from room temperature to the pre-freezing temperature is 0.8 h;

[0030] (6) Secondary freezing the Luo Han Guo pre-frozen in step (5) for 4 hours at a temperature of -25°C and a vacuum of 40Pa;

[0031] (7) Deep freeze the Luo Han Guo after the secondary freezing in step (6) for 7 hours under the conditions of a heating plate temperature of...

Embodiment 2

[0034] A preparation method of grosvenoria freeze-dried micropowder, comprising the following steps:

[0035] (1) Select ripe, disease-free, and non-rotten fresh Luo Han Guo, and wash them with clean water;

[0036] (2) Slice the Luo Han Guo washed in step (1), and control the slice thickness to 2cm;

[0037] (3) Place the sliced ​​Luo Han Guo in step (2) in water at 95°C for 10 minutes;

[0038] (4) Place the dried Luo Han Guo in step (3) at 20°C for 2 hours;

[0039] (5) Place the Luo Han Guo after natural air-drying in step (4) in a freeze dryer, cool down, and pre-freeze for 6 hours when the temperature drops to -20°C; the time from room temperature to the pre-freezing temperature is 1 hour;

[0040] (6) Secondary freezing the Luo Han Guo pre-frozen in step (5) for 5 hours at a temperature of -24°C and a vacuum of 35Pa;

[0041] (7) Deep freeze the Luo Han Guo after the secondary freezing in step (6) for 8 hours under the conditions of a heating plate temperature of 32°...

Embodiment 3

[0044] A preparation method of grosvenoria freeze-dried micropowder, comprising the following steps:

[0045] (1) Select ripe, disease-free, and non-rotten fresh Luo Han Guo, and wash them with clean water;

[0046] (2) Slice the Luo Han Guo washed in step (1), and control the slice thickness to 1cm;

[0047] (3) Place the sliced ​​Luo Han Guo in step (2) in water at 98°C for 8 minutes;

[0048] (4) Place the dried Luo Han Guo in step (3) at 16°C for 2 hours;

[0049] (5) Place the Luo Han Guo after natural air-drying in step (4) in a freeze dryer, cool down, and pre-freeze for 5 hours when the temperature drops to -26°C; the time from room temperature to the pre-freezing temperature is 0.5 h;

[0050] (6) Secondary freezing the Luo Han Guo pre-frozen in step (5) for 3 hours at a temperature of -24°C and a vacuum of 45Pa;

[0051] (7) Deep freeze the Luo Han Guo after the secondary freezing in step (6) for 8 hours under the conditions of a heating plate temperature of 28°C,...

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PUM

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Abstract

The invention discloses fructus momordicae freeze-dried micropowder. The fructus momordicae freeze-dried micropowder is prepared through the steps of fruit sorting, cleaning, slicing, fixation, natural air drying, prefreezing, secondary freezing, deep freezing, superfine grinding and the like. Compared with the prior art, according to the method, the technology is simple and easy to control, the freeze-drying time is short, energy consumption is low, and the production efficiency is high; a hot-water fixation technology is adopted, activity of enzymes of polyphenol oxidase and the like in peel of fructus momordicae can be passivated, fructus momordicae can be sterilized, and it is guaranteed that eating is safe and hygienic; by means of the three-time freezing technology, moisture in fructus momordicae is subjected to orderly sublimation drying, and peel and pulp separation caused by moisture drying is avoided; meanwhile, the color, fragrance, taste, nutritional ingredients and the like of fructus momordicae are well maintained; after the fine powder is obtained, the use rate of fructus momordicae is greatly increased, absorption is enhanced, the taste is improved, and application is wider.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a preparation method of grosvenor grosvenori freeze-dried micropowder, and also relates to grosvenoria grosvenori freeze-dried micropowder prepared by the method. Background technique [0002] Luo Han Guo, the fruit of perennial vines of Cucurbitaceae. Also known as Lahan Guo, False Bitter Gourd, Light Fruit Wood Softshell Turtle, Jinbuhuan, Luohanbiao, Naked Turtle, it is known as the "fairy fruit". Its leaves are heart-shaped, dioecious, blooming in summer and fruiting in autumn. It is mainly produced in Longjiang Township, Longsheng and Baishou Towns, Yongfu County, Guilin City, Guangxi. Yongfu County and Longsheng County are the hometowns of Luo Han Guo with a long history of cultivation. Among them, Yongfu has planted Luo Han Guo for more than 300 years, and Longsheng County has grown Luo Han Guo. It has a history of more than 200 years. Ninety percent o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00
CPCA23V2002/00A23V2300/10A23V2300/20
Inventor 陈素云
Owner 陈素云
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