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[Comparison of ancient and modern processing methods for fructus Psoraleae]
1Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing.
Summary
Processing Fructus Psoraleae using "Leigong's theory" significantly increases psoralen and isopsoralen content. This traditional method also reduces the toxic bakuchiol, enhancing the medicinal herb's safety and efficacy.
Area of Science:
- Pharmacognosy
- Traditional Chinese Medicine
- Analytical Chemistry
Background:
- Fructus Psoraleae (Bu Gu Zhi) is a key herb in Traditional Chinese Medicine.
- Its therapeutic effects are attributed to active compounds like psoralen and isopsoralen.
- The presence of toxic bakuchiol necessitates careful processing to ensure safety.
Purpose of the Study:
- To quantify the active compounds in Fructus Psoraleae processed using different methods.
- To compare the efficacy of traditional processing techniques versus standard methods.
- To evaluate the impact of processing on the reduction of toxic constituents.
Main Methods:
- Gas Chromatography (GC) was employed for the analysis.
- Five distinct processing methods for Fructus Psoraleae were investigated.
- Quantification of psoralen, isopsoralen, and bakuchiol was performed.
Main Results:
- Samples processed via "Leigong's theory of processing" showed 3-4 times higher psoralen and isopsoralen content compared to salt-fried samples.
- The "Leigong's theory" method demonstrated a decreasing trend in the content of poisonous bakuchiol.
- Variations in compound concentration were observed across the five processing methods.
Conclusions:
- "Leigong's theory of processing" is a superior method for enhancing the beneficial compounds in Fructus Psoraleae.
- This traditional processing technique effectively reduces toxic bakuchiol levels.
- Optimized processing is crucial for maximizing the therapeutic potential and safety of Fructus Psoraleae.