| Key indicators | Requirements for leaf products | Requirements for flower products | Testing methods |
|---|---|---|---|
| Protein content | ≥15.0g/100g | Not required | GB 5009.5 |
| Total flavonoids content | ≥3.0% | SN/T 4592 | |
| Lead limit | ≤2.0mg/kg | GB 5009.12 | |
The standard clearly requires that the raw material leaves should be dark green without other leaves, and the flowers should maintain a complete yellow-white shape. The drying process must ensure that the moisture content is ≤8.5%, and the ash content is controlled within ≤8.0%, which is verified by the GB 5009.3/4 series of methods.
Compared with traditional agricultural product standards, this document establishes the flavonoid content index (≥3.0%) of Xanthoceras sorbifolia for the first time, adopting the SN/T 4592 import and export industry standard method, reflecting the trend of standardized control of plant active ingredients in Hebei Province.
Manufacturers should pay special attention to:
1. Establish a batch inspection system for pesticide residues in raw materials (refer to GB 2763)
2. Control the drying temperature below 60℃ to retain the activity of flavonoids
3. Mark the packaging with the warning "Not suitable for infants, young children and pregnant women"

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