Test Methods of herbal extracts:
1️⃣High Potency Liquid Phase Chromatography HPLC:
The specific content of one or more components can be determined.
2️⃣Gas chromatography GC:
Specific levels of one or more volatile components can be measured
3️⃣Atomic absorption AAS:
Can measure the specific content of heavy metals
4️⃣UV Spectrophotometry UV:
It can determine the total content of a class of substances, such as total flavonoids, total polyphenols, total saponins, total polysaccharides, total alkaloids, total anthraquinones, etc.
5️⃣ Thin layer chromatography TLC： identification of active ingredients, identification of plant origin，mass spectrometry
6️⃣Physical and chemical tests:
PH, color reaction, moisture, bulk density, ash, specific gravity, sugar content, melting point, etc.
7️⃣Microbiological testing:
✅General requirements, mainly for food additives, solid beverage products, including bacteria, mold and yeast, E. coli, Salmonella
✅Pathogenic bacteria requirements, mainly for food and medicine homology, raw materials for health care products, including Staphylococcus aureus, Shigella, hemolytic streptococci, Salmonella, etc. Negative bacteria red means no, positive bacteria purple means yes.
8️⃣Special requirements testing: aflatoxin, benzopyrene, plasticizer, etc.
