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Method for performing microwave drying on grosvener siraitia and grosvener siraitia dried by same

A technology of microwave drying and Luo Han Guo, which is applied in the direction of pharmaceutical formulas, medical preparations containing active ingredients, plant raw materials, etc., can solve the problems of damaged outer skin of dried fruits, inability to sell individual dried fruits, and incomplete fruit shape, etc., and achieve the loss of nutritional components The effect of small, complete fruit shape and short drying time

Active Publication Date: 2011-07-20
GUILIN NATURAL INGREDIENTS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the drying method and temperature have a great influence on the content of mogroside V in Luo Han Guo. Although freeze-drying can better retain active ingredients such as mogroside V, the outer skin of the dried fruit obtained by conventional freeze-drying will have A certain degree of damage, the shape of the fruit is incomplete, so it cannot be sold as a single dried fruit, and needs to be further processed into powder or other forms of products for sale

Method used

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  • Method for performing microwave drying on grosvener siraitia and grosvener siraitia dried by same
  • Method for performing microwave drying on grosvener siraitia and grosvener siraitia dried by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Cleaning: Wash the fresh Luo Han Guo fruit (the content of mogroside V is 1.68% (HPLC, the same below));

[0025] 2) Finishing: Get the washed Momordica grosvenori completely soaked in 90 DEG C of killing solution for finishing 10min, and wherein fixing solution adopts following method to prepare: take pure water, add the ginger (ginger smashed) that is equivalent to pure water weight 0.1% (weight). ), adjust the pH value of the solution to 5.5 with citric acid to get final product;

[0026] 3) Punching: Punch a small hole with a diameter of 5 mm at the top fruit pedicle of the finished Luo Han Guo and the corresponding bottom fruit navel respectively;

[0027] 4) Microwave drying: Put the perforated Luo Han Guo into the microwave drying equipment, adjust the working frequency to 915MHz, temperature 60°C, input apparent power ≤ 100kw, output power ≤ 60kW and dry for 10min, then take it out and put it in the Lower the temperature at 2°C for 3 minutes; then take it ou...

experiment example

[0030] In order to illustrate the advantages of the product obtained by the method of the present invention, the applicant divided the fresh Luo Han Guo fresh fruit from Yima Village, Longjiang Township, Yongfu County, Guilin City, Guangxi (the content of mogroside V in the fresh fruit is 1.68%) into 5 groups (each The amount of fresh fruit in the group is the same as the amount in Example 1) to make dried fruits with different processes, and then compare them with the appearance, color, mogroside V content and mouthfeel of the dried fruits obtained in this embodiment, as follows:

[0031] The first group: the freeze-drying group, the fresh fruit is washed and dried in the air, and the fruit is placed in a freeze-drying device, and freeze-dried at a low temperature below 0°C for 24 hours. The obtained dried fruit has serious appearance damage, incomplete shape and unattractive appearance, green color, water content of 3.0%, and content of mogroside V in the dried fruit of 6.17%...

Embodiment 2

[0046] 1) Cleaning: Wash the fresh Luo Han Guo (the content of mogroside V is 1.68%);

[0047] 2) Finishing: get the washed Momordica grosvenori completely soaked in 95 DEG C of killing solution for 8 minutes, wherein the fixing solution adopts the following method to prepare: get pure water, add ginger (smashed ginger) equivalent to 0.3% (weight) of pure water weight ), adjust the pH value of the solution to 6.0 with citric acid to get final product;

[0048] 3) Hole punching: punch a small hole with a diameter of 3 mm at the top fruit pedicle of the finished Luo Han Guo and the corresponding bottom fruit navel respectively;

[0049] 4) Microwave drying: Put the perforated Luo Han Guo into the microwave drying equipment, adjust the operating frequency to 2450MHz, temperature 55°C, and dry for 8 minutes under the conditions of input apparent power ≤ 100kw and output power ≤ 60kW, then take it out and put it in Lower the temperature at 0°C for 5 minutes; then take it out and p...

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Abstract

The invention discloses a method for performing microwave drying on grosvener siraitia and the grosvener siraitia dried by the same. The method comprises the following steps of: washing the grosvener siraitia completely and performing green-removing; punching a small hole on the top of the grosvener siraitia and the corresponding fruit navel at the bottom of the grosvener siraitia respectively; placing the punched grosvener siraitia into microwave drying equipment to dry for 8 to 10 minutes under the conditions of 2,400 to 2,500 MHz or 915 MHz and the temperature of between 50 and 60 DEG C; taking out the grosvener siraitia; placing the grosvener siraitia into the microwave drying equipment to dry for 8 to 10 minutes under the same conditions; taking out; cooling the grosvener siraitia at the temperature of between 0 and 4 DEG C for 3 to 5 minutes; and repeating the drying and cooling processes for 5 to 6 times to obtain grosvener siraitia. Compared with the prior art, the method has the advantages of simple and easily controlled process, short drying time and low energy consumption. The obtained dried grosvener siraitia has a complete and attractive fruit shape, green color, good mouthfeel and high retention rate of mogrosides V.

Description

technical field [0001] The drying method of Luo Han Guo of the present invention specifically relates to a method for drying Luo Han Guo by adopting a microwave method and the Luo Han Guo dried by the method. Background technique [0002] Luo Han Guo (Siraitia grosvenorii) is a perennial rhizome plant of Cucurbitaceae Luo Han Guo. It is a unique economic and medicinal plant in my country. It is a traditional specialty in northern Guangxi. In the folk, the dried fruit of Luo Han Guo is used as an expectorant. It has a significant effect in the treatment of whooping cough, chronic bronchitis, colds, constipation, and minor gastrointestinal diseases. In addition, Luo Han Guo is also a natural sweetener with high sweetness and low calorie, which can be widely used in the field of food additives, especially for patients with coronary heart disease, hypertension, diabetes and obesity. [0003] Since the fresh fruit of Luo Han Guo is not easy to preserve, the growers usually dry o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/221A61K36/42A61P1/00A61P1/10A61P11/10A23L27/10
Inventor 孙步祥蒋小三汤凌志陆玮何然
Owner GUILIN NATURAL INGREDIENTS CORP
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