system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Chromatography, Thin Layer, Densitometry, Flavonoids, Isoflavones, Plant Roots, Plant Stems, Plants, Medicinal, Pueraria, Spectrophotometry, Ultraviolet.
user
Does [ Analysis on chemical composition of genus Pueraria stem from China ]? Context: To provide scientific basis for developing and utilizing Pueraria stems. The contents of total flavonoid were determined by means of UV spectrophotometry. The isoflavones in stems and roots of nine species of genus Pueraria were analyzed by TLC. The stems and roots are similar in chemical composition.
assistant
Pueraria stems as a potential resource could be used as a substitute for Pueraria roots. Final Decision: yes