Preparation method of angelica sinensis in pieces

Abstract

The invention discloses a preparation method of angelica sinensis in pieces. The preparation method comprises the following steps: (1) taking harvested and dried angelica sinensis, sending the angelica sinensis to a pool for cleaning, removing fibrous roots and sediments and washing the angelica sinensis; (2) sending the washed angelica sinensis to a drying room, drying the angelica sinensis at 50-60 DEG C for 5-8 hours until the moisture content of the angelica sinensis is within 15%; (3) slicing and classifyinig the angelica sinensis; (4) sending the angelica sinensis to a vacuum chamber, vacuumizing the angelica sinensis to a negative pressure, and performing secondary drying at 30 DEG C until the moisture content of the angelica sinensis is within 5%; (5) sending the angelica sinensisto a high-pressure nitrogen chamber, and keeping the angelica sinensis under nitrogen atmosphere at 3-4 atmospheres for30-60 min. According to the invention, the uncut entire branch of angelica sinensis is dried at 50-60 DEG C, resulting in no damage on ester compositions in the angelica sinensis; and then the angelica sinensis is cut and sent to the vacuum chamber for drying at low temperature before being completely dried, thereby effectively retaining the ester compositions in the angelica sinensis without damage and loss. Meanwhile, pores in cells of the angelica sinensis are shrunk by vacuum drying, thereby facilitating introduction of nitrogen in subsequent processes. The angelica sinensis is sent to the high-pressure nitrogen chamber, so that nitrogen can be fully introduced in thecells of the angelica sinensis,thereby facilitating to fix ester compositions in the angelica sinensis without extravasation. The preparation method improves shelf life of the angelica sinensis and ensures quality of the angelica sinensis.

Description

technical field [0001] The invention relates to the technical field of traditional Chinese medicine processing, in particular to a preparation method of angelica decoction pieces. Background technique [0002] Angelica is a commonly used traditional Chinese medicine for nourishing blood and promoting blood circulation, which has the effects of nourishing blood and promoting blood circulation, regulating menstruation and relieving pain, and relaxing bowels. It is commonly used for blood deficiency and yellow complexion, dizziness and palpitations, irregular menstruation, amenorrhea dysmenorrhea, abdominal pain due to deficiency and cold, rheumatic arthralgia, injury from falls, carbuncle sores, intestinal dryness and constipation. Wine angelica invigorates blood and stimulates menstrual flow. It is used for amenorrhea and dysmenorrhea, rheumatic arthralgia, and injury from falls. It is mainly produced in the southeast of Gansu, with Minxian County having the most output and ...

AI Technical Summary

Problems solved by technology

[0004] But at that time, it contained a lot of ester components, which were prone to mildew and oil leakage, and needed sulfur fumigation for preservation, which brought hidden dangers to the safety and quality of angelica.