Microwave vacuum freeze drying method for dendrobium officinale lucid ganoderma superfine powder

Abstract

The invention discloses a microwave vacuum freeze drying method for dendrobium officinale lucid ganoderma superfine powder. The microwave vacuum freeze drying method comprises the following steps: 1)pretreating: using water for washing off silt from freshly harvested dendrobium officinale and lucid ganoderma, and draining water; 2) pulping: pulping the pretreated dendrobium officinale and lucid ganoderma with water; 3) concentrating: adopting a reverse osmosis device for concentrating pulp; 4) pre-freezing: using a high speed stirrer for stirring the concentrated solution which is concentrated by the reverse osmosis device, and then post-freezing; 5) freeze-drying: putting the pre-frozen concentrated solution into a dry cabin, performing vacuum freeze drying, releasing pressure after theending of drying, and taking out from the dry cabin; 6) smashing: using a jet mill for smashing, thereby acquiring dendrobium officinale lucid ganoderma superfine powder. According to the method disclosed by the invention, freeze-drying time is effectively reduced, freeze-drying energy consumption is reduced, active ingredients and effective constituents are kept and excellent rehydration propertyof products is maintained.

Description

technical field [0001] The invention relates to a drying method of dendrobium ganoderma lucidum, in particular to a microwave vacuum freeze-drying method of superfine powder of dendrobium ganoderma. Background technique [0002] Dendrobium officinale is a perennial epiphytic herb of Orchidaceae. Born on the semi-shady rocks in the mountains at an altitude of 1600 meters, it likes warm and humid climates and semi-shady and semi-yang environments, and is not cold-resistant. Generally can withstand the low temperature of -5 ℃. Dendrobium can be divided into dozens of species such as yellow grass, nobile, and horsewhip. Dendrobium candidum is the best product of Dendrobium. It is named for its iron-green skin. Dendrobium candidum has unique medicinal value. Its stems are used as medicine, and it belongs to the yin-tonifying medicine in tonic medicine. "Chinese Pharmacopoeia": Yiwei Shengjin, nourishing yin and clearing heat. The tender stems of a few varieties such as Dendrob...

AI Technical Summary

Problems solved by technology

In some methods, the juice of Dendrobium officinale is squeezed or added to be beaten with water, and the juice is filtered out, and the juice is freeze-dried, which fails to achieve full nutritional utilization of the active ingredients of Dendrobium officinale, resulting in low utilization of Dendrobium officinale

[0008] In order to solve the above defects, the inventor has carried out a lot of research work and proposed a new preparation method for vacuum freeze-drying, which has the disadvantages of high cost, long production cycle, and large unit energy consumption.