Tsoong. [Method] The proper ethanol extracts of P. longiflora. var. tubiformis were added into 5 kinds of oil and fat, whose POV values were determined at different time.

• [方法]在5种油脂中添加适当的班唇马先蒿乙醇提取物，并对其抗氧化作用的机理作初步的研究。