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Specifications:
It often presents as a light - yellow to yellow - brown liquid or a solid after appropriate processing. Its color and physical state can vary depending on the production process and formulation requirements.
Identification usually involves a combination of methods. Chemical tests can be used to detect specific chemical components unique to the extract. For example, certain color - reaction tests may be carried out to identify characteristic substances. In addition, chromatographic techniques like high - performance liquid chromatography (HPLC) can be employed to analyze the composition profile of the extract and confirm its identity.
Protein Content: Since it is deproteinized, the residual protein content is strictly controlled. It should be extremely low, often less than a certain very small percentage (e.g., less than 0.1% or an even lower value), to ensure the purity of the deproteinized product and avoid potential allergic or other adverse reactions caused by proteins.
Biological Activity Components: The content of key biological activity - related components is an important indicator. For example, if there are certain small - molecule substances with specific physiological functions in the extract, their concentration levels need to be within a specified range to guarantee the efficacy of the product.
Microbiological Quality: The product must meet strict microbiological standards. Limits are set for total aerobic microbial count, total yeast and mold count, and the absence of specific pathogenic microorganisms (such as Escherichia coli, Salmonella, etc.) to ensure its safety for use.
pH Value: The pH of the extract is maintained within an appropriate range, usually between 6.0 - 8.0, which helps to ensure its chemical stability and suitability for pharmaceutical applications.