Drynaria fortunei Chinese medicinal material drying and processing line

Drynaria fortunei prefers a cool, humid environment. It thrives in conditions with abundant rainfall, frequent clouds and fog, and high humidity. Direct sunlight slows growth and can easily burn and turn the leaves yellow. Dried drynaria fortunei maximizes its medicinal properties when used in wine and medicinal decoctions.

Drynaria fortunei generally cannot be directly sun-dried, as this will affect its effectiveness. It typically requires a series of treatments before sun-drying. It is recommended to follow appropriate processing and use regulations.

Drying Chinese herbal medicines is a crucial step in pharmaceutical production, removing moisture and impurities and improving their quality and shelf life. Common drying methods include sun-drying, oven-drying, and oven-drying. Oven-drying is a common method, offering the advantages of convenience, speed, and controllability.

Time Requirements for Oven-Drying Chinese Herbs

1. Temperature and Time

Drying Chinese herbal medicines in an oven requires careful attention to both temperature and time. The temperature should be maintained between 50°C and 80°C, and the drying time should be determined based on the nature and thickness of the herbal material. Generally speaking, herbs and small pieces of Chinese medicinal materials can be dried for 4-5 hours, while larger ones require 8-10 hours.

2. Proper Stirring

During oven drying, herbs should be properly stirred to ensure even heating and achieve optimal drying results.

3. Avoid Overdrying

When oven drying Chinese medicinal materials, avoid overdrying, as this will affect the active ingredients. Generally speaking, oven-dried herbs should maintain a relatively soft texture and avoid becoming too brittle.