Freeze-dried dendrobium officinale powder and preparation method thereof

A technology of Dendrobium officinale and freeze-dried powder, which is applied in food preparation, powder delivery, and pharmaceutical formulations, can solve the problems of effective physiologically active ingredients, sensory indicators deterioration, and short storage time, so as to maintain fresh taste and pharmacology Efficacy, low production cost, less equipment

Inactive Publication Date: 2014-12-24
BEIJING FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because Dendrobium candidum has good medicinal value and health value, people’s demand for it is increasing day by day, but the fresh product of Dendrobium candidum has a short storage time, and although it can prolong the storage time after drying, the sensory indicators become worse, especially the , effective physiologically active active ingredients are also affected, resulting in a decrease in their efficacy

Method used

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  • Freeze-dried dendrobium officinale powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Prepare the freeze-dried powder of Dendrobium candidum according to the following steps:

[0024] (1) Wash and drain the freshly harvested Dendrobium candidum, cut into 2-4cm long sections, and set aside;

[0025] (2) Put the drained Dendrobium candidum in a Joyoung JYL-C010 cooking machine, add pure water at a ratio of material to liquid (1g:5ml) to squeeze the juice, and freeze the squeezed juice overnight for later use;

[0026] (3) Pre-cool the FD-1A-50 vacuum freeze dryer (produced by Shanghai Bilang Instrument Co., Ltd.) at -56°C for half an hour;

[0027] (4) The frozen product of Dendrobium candidum juice treated in step (2) is placed in a vacuum freeze-drying equipment, and is frozen at a constant temperature at -56°C, vacuumed to a vacuum degree of 7-9Pa, and the moisture in the frozen product of Dendrobium candidum juice Carry out sublimation drying, the time is 18-30 hours, so that obtain dendrobium officinale freeze-dried powder;

[0028] (5) Put the free...

Embodiment 2

[0030] The freeze-dried powder of Dendrobium officinale prepared in Example 1 was compared with the dry product of Dendrobium obtained by traditional drying methods, as follows:

[0031] 1. Preparation of dry products of Dendrobium using traditional drying methods of Dendrobium

[0032] (1) Preparation of freeze-dried section:

[0033] Refer to the method provided in the patent document "A Vacuum Freeze-Drying Processing Method of Dendrobium officinale" (patent application number 201110114094.1) to prepare the freeze-dried section of Dendrobium officinale: ① Wash the fresh stem section (2-4cm long) of Dendrobium officinale, drain dry and cut into sections; ②Place the drained stems of Dendrobium candidum in freeze-drying equipment, pre-freeze and freeze at a constant temperature at -30°C--35°C: ③Sublimate and dry the stems of Dendrobium candidum treated in step ②; The remaining water in the Dendrobium officinale treated by sublimation and drying in step ③ is heated and evapora...

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Abstract

The invention discloses freeze-dried dendrobium officinale powder and a preparation method thereof. The method comprises the steps of (1) cleaning fresh picked dendrobium officinale with water, drying, and cutting the dendrobium officinale into sections which are 2-4cm long; (2) putting the dried dendrobium officinale into a juicing machine, adding pure water according to a ratio of material to liquid being 1g:5ml and juicing; (3) freezing the dendrobium officinale juice at the temperature of -20 DEG C for one night; (4) pre-cooling vacuum freeze-drying equipment at the temperature of -56 DEG C for half an hour; and (5) putting a frozen dendrobium officinale product into the pre-cooled vacuum freeze-drying equipment, and performing vacuum freeze-drying treatment under conditions that the temperature is -56 DEG C and the vacuum degree is 7-9Pa for 18-30 hours so as to obtain the freeze-dried dendrobium officinale powder. The method is simple, is easy to operate and is low in production cost; the obtained freeze-dried dendrobium officinale powder product is loose, is rich in dendrobium officinale polysaccharide, does not contain fibers and is high in dissolvability; the utilization rate of the officinale polysaccharide is high; furthermore, the original state of dendrobium officinale is retained, and the freeze-dried dendrobium officinale powder is light green, has a fresh taste and medicinal effects and can be stored and transported under normal temperature; the retention period is effectively prolonged.

Description

technical field [0001] The invention relates to the field of food processing, in particular to freeze-dried dendrobium officinale powder and a preparation method thereof. Background technique [0002] Dendrobium officinale Kimura et Migo is a perennial herbaceous plant of the genus Dendrobium in Orchidaceae. It is a traditional precious Chinese herbal medicine in my country. Among the traditional Chinese medicinal materials in my country, Dendrobium candidum first appeared in the "Shan Hai Jing"; as early as the Qin and Han Dynasties, "Shen Nong's Herbal Classic" recorded that Dendrobium officinale was "sweet and flat. In the main injury, it can remove numbness, lower qi, and nourish the five internal organs. Labor, win weakness, strong yin. Take it for a long time, thicken the stomach, lighten the body, and prolong life". More than 1,000 years ago, "Tao Zang" listed Dendrobium candidum as the first of the "Nine Chinese Immortal Grasses"; Li Shizhen commented in "Compendium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/29A61K36/8984A61K9/14A23L33/00
CPCA23F3/34A23L33/00
Inventor 史玲玲孙立炜洪秀玲马超刘玉军
Owner BEIJING FORESTRY UNIVERSITY
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