Medicinal Freeze Dryer for Licorice

Medicinal Freeze Dryer For Licorice

The fresh-keeping method of licorice freeze-drying in the medicinal freeze dryer

The main steps are as follows:

1. Pretreatment: remove the debris from the adventitious root of licorice, wash and dry the surface moisture;

2. Pre-freezing: cool down to ‑25～‑40℃ in a vacuum desiccator, and pre-freeze for 20～25h;

3. Vacuum freeze-drying: the licorice adventitious root obtained in step 2 is evacuated to 20-50Pa in a freeze-drying machine, freeze-dried for 10-15h at a cold trap temperature-40--60°C, and taken out;

4. Vacuum packing.

After fresh licorice is freeze-dried and preserved by a medicinal freeze dryer for licorice equipment, the activity of medicinally active ingredients can be preserved to the greatest extent, and the original shape, color, and smell are well preserved, and the fresh color, aroma, and taste of licorice are retained, and the product is complex. The water is good, which is convenient for long-term storage, transportation, and sales.

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