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Standard assay requirements for Shengjiang (Zingiberis Rhizoma Recens) and its processed herbs [1].
| Different ginger types | Water content | Total ash | Water soluble extractive | Volatile oil | 6-Gingerol |
|---|---|---|---|---|---|
| Shengjiang (Zingiberis Rhizoma Recens) | <2.0% | >0.050% | |||
| Ganjiang (Zingiberis Rhizoma) | <19.0% | <6.0% | >22% | >0.80% | >0.60% |
| Paojiang (Zingiberis Rhizoma Praeparatum) | <12.0% | <7.0% | >26% | >0.30% | |
| Jiangtan (Zingiberis Rhizoma Carbonisata) | <26% | >0.050% |
