Manufacturing Techniques

China Resource Sanjiu 999 Single Chinese Herb Extracts are produced with strict quality standards that cover the entire production chain. This includes carefully monitoring and controlling the steps of seed selection, planting, growing, collecting, extracting, concentrating, drying, granulating, packaging, storing and distributing, thereby insuring consistency of quality.

Selection of Raw Material
The origin of the raw materials, place of production and collecting season are all considered critical to the quality of raw materials. Protocol ensures the quality of the raw materials is high and in accordance with specifications.

The cultivation bases in China are growing rapidly and are managed in accordance with GAP standards. Currently there are 20 such bases. Thirty to forty larger cultivating bases will be introduced in the next year.


Species Identification
Species identification is the method for identifying the separating the target source materials from other similar materials. This process includes the following:

  • Origin Identification: conclusively identify the origin of the material.
  • Description Identification: from sense evaluation, identify the material by way of its characteristics: including description, species and relevance of inherent quality.
  • Microscope Identification: identify the cell, tissue and content of the material by way of microscope.
  • Physics and chemical Identification: assaying the main ingredients and identifying the material

Quality Identification

  • Degree of purity: control the nature and amount of Organic and inorganic impurity.
  • Sense Evaluation: evaluate, on a material-by-material basis, taste, color and luster.
  • Ingredient Index or Total Decocted Ingredient Assay: analyze the content of the effective ingredient or the ingredient indexes if available: otherwise analyze the total decocted ingredient for evaluating material.
  • Water Assay: according to the material characteristics, water content is always limited to fall within the range of 9% to 16%

Guided by Manufacturing Directions for Single herb Extract, different solvents and extraction methods are chosen according to the characteristics of each material.
Ion-free water is the preferred extraction solvent, low-density alcohol is used only occasionally for special species. Extracting methods include:

  • Water
  • Alcohol
  • Volatile Oil Extract lines
  • Dynamic

The Chinese Pharmacopoeia requires that species be tested for volatile oils, such as peppermint oil. In order to ensure that the volatile material doesn't escape, it is extracted through a volatile oil extract line. Dynamic extraction is used for extracting from mineral and animal source material.

Plant extracts that lack an abundance of froth ingredients (such as saponin material) is condensed through multi-effect condensation.

Plant extract that does contain and abundance of froth ingredients, and has stronger froth nature, should be condensed by pellicle-condensation: if applied with vacuum-condensation, the material escapes.

Mineral, animal fossil, and shell extracts, which are heat resistant, are extracted through pressure condensation

According to material characteristics, spay drying, vacuum drying, and normal pressure drying are used.

Spray drying, a rapidly advancing technology, has efficient and dissolves the product well. Due to its efficiency, it is becoming a popular form of drying for herbal extracts.

Vacuum drying takes place in a sealed container where the air is extracted thereby creating a vacuum. It is used for materials that:

  • Are sensitive to heat
  • Oxidize at high temperatures
  • Are not suitable for spray drying
  • Are low in content

With vacuum drying, in order to guarantee the products are effectively extracted, temperature control is critical and precise.

Pressure drying is suitable for mineral, animal fossil and shell source material which are heat resistant.

Most products are packed upon completion of the drying processes There are a select few products that require the addition of the drying process. There are a select few products that require the addition of a one-step granulating process. Products that are granulated exhibit the following characteristics:

  • Globular in shape
  • Well distributed
  • Flow well
  • With loose
  • Granules are brittle
  • With manufacturing techniques that are complex
  • Overfull time for heating


999 Single Chinese herb extracts are packed in an aluminum and plastic film, which has long shelf life and a beautiful appearance.

Storage & Delivering

After careful package, China Resource Sanjiu(999) Single Chinese herb extracts are tagged with a uniform bar code and sent to an assigned delivery center. This is done carefully and eliminates confusion when stocking, delivering or dispensing the extracts.

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