Panax Notoginseng microwave drying sterilization method

Abstract

The invention relates to a method for drying and sterilizing Panax notoginseng, which comprises the following steps of: (1) sorting Panax notoginseng raw material, washing, and draining; (2) turning on a microwave drying and sterilizing machine, laying the Panax notoginseng raw material on the conveyer belt of the microwave drying and sterilizing machine from the beginning end of the machine, controlling the laying thickness not more than 30 mm, conveying the Panax notoginseng raw material to a hermetic microwave radiation zone positioned in the middle section of the machine via the conveyer belt, and conducting drying and sterilizing, wherein the material feeding port is arranged in a common operation zone and the conveying speed of the conveyer belt is 0.3-5 m/min; and (3) conveying the dried and sterilized Panax notoginseng raw material out of the machine from the tail end arranged in a clean operation zone of the machine via the conveyer belt, collecting, bagging, and packaging. The inventive method adopts microwave drying and sterilization; and has the advantages of high heating speed, uniform heating, low drying temperature (lower than 80 DEG C), short drying time, and effectively saved energy consumption (by over 2/3).

Description

technical field [0001] The invention relates to a drying and sterilizing process method of specific Chinese medicinal materials of notoginseng. Background technique [0002] Chinese patent application number 200610020880.4 discloses a "manufacturing method of microwave vacuum freeze-drying lemon slices", which method includes: 1) classifying and sorting the lemon fruit; 2) storing the lemon fruit at a constant temperature; The lemon fruit is degraded and sterilized by pesticide residues, 4) the head and tail of the lemon fruit are cut off and cleaned and sterilized by ozone water; 5) the lemon fruit is subjected to directional transverse diameter mechanical slicing; 6) the sliced ​​lemon is frozen, 7) Pre-freeze drying, so that the moisture content of the lemon slices is lower than 30%; 8) Microwave vacuum drying is performed on the pre-freeze-dried lemon slices until the moisture content is lower than 8%; The inner packaging is mechanically sealed, and after being packed i...

AI Technical Summary

Problems solved by technology

For the drying of Chinese herbal medicines, traditional techniques often use methods such as drying, fire roasting, and sun drying. These methods take a long time and have poor heating uniformity. Especially for large medicinal materials, the surface may have dried out, but the internal humidity is still there. Larger, leading to deterioration and damage of medicinal materials during storage

In addition, due to the long drying time and high temperature, some medicinal materials may deteriorate and change color, and the active ingredients will be destroyed, which will affect the curative effect of the final product.

[0005] Secondly, Chinese medicinal materials themselves often carry a large number of microorganisms. Some medicinal materials are not sterilized before storage, and are affected by various factors during the storage process. Microbes multiply and active ingredients are destroyed, which has a great impact on the quality of medicinal materials. Some expensive medicinal materials will inevitably cause great economic losses

In addition, the sterilization of Chinese medicinal materials also affects the quality of decoction pieces and Chinese patent medicines.