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High-quality dendrobium officinale and varying-temperature differential-pressure puffing drying method thereof

A technology of variable temperature and pressure difference puffing and dendrobium candidum, which is applied in food drying, application, food ingredients, etc., can solve the problems of poor taste, inability to eat directly, and high cost of dendrobium candidum, so as to improve human immunity, good taste, and production low cost effect

Active Publication Date: 2018-09-04
ZHEJIANG CHINESE MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Modern freeze-dried actives retain ingredients better but yields are low and costly
At the same time, the traditional dried Dendrobium candidum tastes bad and cannot be eaten directly.

Method used

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  • High-quality dendrobium officinale and varying-temperature differential-pressure puffing drying method thereof
  • High-quality dendrobium officinale and varying-temperature differential-pressure puffing drying method thereof
  • High-quality dendrobium officinale and varying-temperature differential-pressure puffing drying method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) raw material selection: select fresh, healthy and clean dendrobium candidum stems as raw materials;

[0031] 2) Raw material pretreatment: cut the stems of Dendrobium officinale in step 1) into 5mm long sections, place them in 10% sucrose aqueous solution for 0.5h soaking at a material-to-liquid ratio of 1:5kg / l, take them out and drain, and set aside.

[0032] 3) Pre-drying of raw materials:

[0033] The pretreated Dendrobium candidum in step 2) was pre-dried in a hot air drying oven at 60° C. to make the water content of Dendrobium candidum 40%, and then put it in a refrigerator at 4° C. to soften for 12 hours and set aside.

[0034] 4) Puffing and drying with variable temperature and pressure difference:

[0035] Put the Dendrobium candidum treated in step 3) into the expansion tank, raise the expansion temperature in the tank to 80°C, raise the air pressure in the tank to 0.1-0.2Mpa, and leave the expansion time for 30min; open the pressure relief valve to make ...

Embodiment 2

[0038] 1) raw material selection: select fresh, healthy and clean dendrobium candidum stems as raw materials;

[0039] 2) Raw material pretreatment: cut the stems of Dendrobium officinale in step 1) into 6mm long pieces, place them in 15% sucrose aqueous solution and soak for 0.8h at a material-to-liquid ratio of 1:4kg / l, take them out and drain, and set aside.

[0040] 3) Pre-drying of raw materials:

[0041] The pretreated Dendrobium candidum in step 2) was pre-dried in a hot air drying oven at 70° C. to make the water content of Dendrobium candidum 30%, and then put it in a refrigerator at 4° C. to soften for 12 hours and set aside.

[0042] 4) Puffing and drying with variable temperature and pressure difference:

[0043] Put the Dendrobium candidum treated in step 3) into an expansion tank, raise the expansion temperature in the tank to 80°C, raise the air pressure in the tank to 0.1-0.2Mpa, and leave the expansion time for 20 minutes; open the pressure relief valve to ma...

Embodiment 3

[0046] 1) raw material selection: select fresh, healthy and clean dendrobium candidum stems as raw materials;

[0047] 2) Raw material pretreatment: cut the stems of Dendrobium officinale in step 1) into 4mm long pieces, place them in 5% sucrose aqueous solution for 1 hour at a material-to-liquid ratio of 1:6kg / l, take them out and drain them, and set aside.

[0048] 3) Pre-drying of raw materials:

[0049] The pretreated Dendrobium candidum in step 2) is pre-dried in a hot air drying oven at 80° C. to make the water content of Dendrobium candidum 20%, and then put it in a refrigerator at 4° C. to soften for 12 hours and set aside.

[0050] 4) Puffing and drying with variable temperature and pressure difference:

[0051] Put the Dendrobium candidum processed in step 3) into an expansion tank, raise the expansion temperature in the tank to 80°C, raise the air pressure in the tank to 0.1-0.2Mpa, and place the expansion time for 40 minutes; open the pressure relief valve to make...

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Abstract

The invention belongs to the technical field of deep processing of health foods, and particularly discloses high-quality dendrobium officinale and a varying-temperature differential-pressure puffing drying method thereof. The drying method of the dendrobium officinale provided by the invention comprises the following steps: cutting fresh dendrobium officinale into segments, performing soaking treatment with syrup, performing pre-drying treatment by a hot air drying oven, and finally performing varying-temperature differential-pressure puffing drying. Dried dendrobium officinale of the invention is low in water content, high in polysaccharide content and protein content, good in crispness, good in moth feel and free of additive, can be directly eaten, and is easy to carry and store; and thevarying-temperature differential-pressure puffing drying method of the dendrobium officinale reserves the original nutrient components of the fresh dendrobium officinale to the maximum extent, and has short production period, high yield and low production cost.

Description

technical field [0001] The invention belongs to the technical field of deep processing of health food, and in particular relates to a high-quality dendrobium officinale and a puffing and drying method using variable temperature and pressure difference. Background technique [0002] Dendrobium officinale is an orchid herb, containing active ingredients such as dendrobium polysaccharides, dendrobine and total amino acids. It can improve human immunity, enhance memory, replenish five viscera, delay aging, inhibit tumors, improve myocardial nutrition, dredge cardiovascular and cerebrovascular, reduce heart fire, and has significant effects on radiotherapy and excessive smoking and alcohol. It is a very good medicine. Healthy food. In recent years, with the improvement of people's living standards, Dendrobium officinale has become more and more popular. But contain 80-95% moisture in the fresh dendrobium candidum, perish easily, store and transport inconvenience, easily cause u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/00A23L5/00A23P30/32
CPCA23L5/00A23L33/00A23P30/32A23V2002/00A23V2200/30A23V2300/10A23V2200/302A23V2200/308A23V2200/324A23V2200/326A23V2200/334
Inventor 夏道宗郭璐
Owner ZHEJIANG CHINESE MEDICAL UNIVERSITY
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