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How is natural borneol formed?
2025-04-29
The formation of natural borneol is mainly based on the extraction and processing of plant resources. Its core sources and processes are as follows:
Natural borneol is formed by distilling and extracting the fresh leaves or resin of plants in the Lauraceae family (such as camphor trees or Cinnamomum camphora), and then processed into crystalline dextro-borneol crystals. The main formation methods include:
Main Raw Material Sources
Extraction from Lauraceae Plants: According to the Chinese Pharmacopoeia, natural borneol is mainly derived from the fresh branches and leaves of camphor trees in the Lauraceae family, extracting dextro-borneol through steam distillation and crystallization processes.
Processing of Dryobalanops Resin: Some natural borneol can also be obtained from the dry resin collected from the cracks in the trunks of Dryobalanops trees (such as Dryobalanops aromatica), which is obtained by distillation and sublimation.
Processing Technology
The fresh branches and leaves of the camphor tree are crushed, and volatile oil is separated by steam distillation, and then purified into dextro-borneol through cooling and crystallization steps.
Some processes involve felling and chopping the branches and stems of Dryobalanops trees, and obtaining high-purity crystals directly through distillation and sublimation.
Chemical Characteristics and Quality Control
The quality standards of natural borneol must meet the regulations of the Chinese Pharmacopoeia on the content of dextro-borneol to ensure its medicinal efficacy and safety.
Note: Natural borneol needs to be distinguished from synthetic borneol (chemically synthesized from turpentine, etc.). The former emphasizes natural origin and traditional processes, while the latter has lower cost but similar efficacy.
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