Which cooking method is recommended for dispersing Gou Teng to preserve its antihypertensive effect?

• A. Simmer on low heat for 60 minutes
• B. Big fire, short cook time
• C. No cooking required
• D. Add at the end of cooking

Answer: (B)

When extracting Gou Teng for its antihypertensive effect, the goal is to quickly disperse its active constituents into the decoction while minimizing their loss. The key active compounds in Gou Teng are heat-sensitive alkaloids that are released into hot water, but prolonged heating can degrade them. A strong, brief boil extracts these components rapidly and distributes them evenly in the liquid, preserving potency. Longer simmering or gentler heat can diminish the active compounds and reduce the antihypertensive effect. Adding at the end or not cooking would fail to extract enough of the important constituents, whereas a quick, high-heat decoction achieves both dispersion and stability of the active components.