T/SXZYC 010-2023 Quality Standards for Herba Cuscutae Seeds

Scope

Main technical content: including sample collection (including traceability information), basic quality requirements, quality grading standards, inspection methods, packaging materials, storage conditions and storage period, and other important technical content explanations. 1. Sample collection - Collected 21 seeds from different production areas in the main production regions of Yuan Zhi seeds, each weighing approximately 230 g. The collection locations and growth years are shown in Table 1: - **Table 1: Collection of Yuan Zhi seed samples** | Number | Production area | Growth year | |--- | --- | --- | | 1 | Linfen | Three-year | | 2 | Linfen | Three-year | | 3 | Linfen | Three-year | | 4 | Linfen | Two-year | | 5 | Yuncheng | Three-year | | 6 | Yuncheng | Two-year | | 7 | Yuncheng | Two-year | | 8 | Yuncheng | Three-year | | 9 | Yuncheng | Three-year | | 10 | Yuncheng | Three-year | | 11 | Yuncheng | Two-year | | 12 | Yuncheng | Two-year | | 13 | Yuncheng | Two-year | | 14 | Yuncheng | Two-year | | 15 | Yuncheng | Three-year | | 16 | Yuncheng | Three-year | | 17 | Yuncheng | Two-year | | 18 | Yuncheng | Two-year | | 19 | Yuncheng | Two-year | | 20 | Jincheng | Three-year | | 21 | Jincheng | Three-year | 2. Basic quality requirements 2.1 Authenticity identification: - Yuan Zhi seeds are easily distinguishable from other plant seeds by their appearance, so the authenticity of the seeds is determined using the seed morphology method: - Yuan Zhi seeds are oblong with a length of about 3 mm, a width of about 2 mm, and a thickness of about 2 mm. - The seed coat is gray-black, densely covered with gray-white silky hairs, with a yellow-white seed hull at the tip. The pseudo-seed coat is white. - There is an endosperm, which is yellow-white, with a yellow embryo in the middle. - The cotyledons are two, oval-shaped, with a blunt tip at the t

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